# einvoices.uk: full text
> The full text of every einvoices.uk article, plus the mandate guide and the glossary, as Markdown. 77 articles, newest first. Generated 20 October 2026 (2026-10-20); content last updated 20 October 2026 (2026-10-20).
Each document starts with its title, canonical URL, dates, author and sources. Please cite the canonical URL. Index of pages: https://einvoices.uk/llms.txt. einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
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# The UK e-invoicing mandate: complete guide
> Everything confirmed about mandatory e-invoicing in the UK: who is in scope from April 2029, Peppol, the decentralised model, real-time reporting, the Budget 2026 roadmap and how to prepare.
- Canonical URL: https://einvoices.uk/mandate
- Last updated: 20 October 2026 (2026-10-20)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Language: en-GB; covers the United Kingdom
## Sources
- [Consultation: Promoting electronic invoicing](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
---
## The short version
| | |
|---|---|
| Start date | April 2029 |
| What | VAT invoices must be structured e-invoices |
| Who | B2B supplies between VAT-registered businesses, and B2G supplies to public bodies |
| How | Decentralised exchange over the Peppol network via service providers |
| Reporting to HMRC | No real-time reporting at launch |
| Next milestone | Implementation roadmap at Budget 2026 (28 October 2026) |
## What has been announced
After consulting in 2025 on how to promote electronic invoicing, the government used the Autumn Budget on 26 November 2025 to confirm that e-invoicing will be mandatory for VAT invoices from April 2029. HMRC's 2026 update to its transformation roadmap restated that commitment and said HMRC would work with the Department for Business and Trade to publish a roadmap of milestones at Budget 2026.
In its Tax Update on 23 June 2026 the government confirmed Peppol as the core interoperability network for UK e-invoicing. That means businesses will send and receive e-invoices through providers connected to Peppol, much as many NHS suppliers already do.
## What is still to be confirmed
- The exact data standard and any UK-specific rules (a UK CIUS)
- How B2C sales, receipts and simplified invoices are treated
- Any thresholds, exemptions or phased start for smaller businesses
- How service providers will be accredited
- Penalties and the transition for legacy systems
- Whether and when a reporting element (a "fifth corner") follows later
## How to prepare now
1. Count your invoices: how many you send and receive, in which formats, and through which systems.
2. Ask your accounting, ERP or AP software provider about their Peppol and mandate plans.
3. Check your master data: VAT numbers, company numbers and addresses for every customer and supplier.
4. Find out which of your customers already accept e-invoices, especially public-sector ones.
5. Plan the budget and the owner for the project, even if work starts in 2027.
For a step-by-step plan, read our [2029 readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist), or use the [scope checker](https://einvoices.uk/tools/am-i-in-scope).
## Key dates
- Feb–May 2025: Government consults on e-invoicing. HMRC and the Department for Business and Trade consult on promoting electronic invoicing across UK businesses and the public sector, including whether to mandate it. Source: [GOV.UK consultation: Promoting electronic invoicing](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector) (status: done)
- 26 Nov 2025: Mandate announced at Autumn Budget 2025. The government confirms that all VAT invoices between VAT-registered businesses, and to public bodies, must be e-invoices from April 2029, using a decentralised model. No real-time reporting at launch. (status: done)
- June 2026: Peppol confirmed as the UK network. The government's Tax Update confirms Peppol as the core interoperability network for UK e-invoicing, giving software developers a direction of travel. Source: [Tax update 2026 summary (GOV.UK)](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) (status: done)
- 28 Oct 2026: Budget 2026: implementation roadmap expected. HMRC and DBT committed to publish a roadmap setting out milestones for the mandate at Budget 2026. Expected to cover standards, scope details and next steps. Source: [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026) (status: next)
- 2027–28: Standards, guidance and legislation. Technical specifications, provider accreditation, legislation and HMRC guidance are expected to be finalised ahead of go-live. Exact dates will follow the roadmap. (status: future)
- Apr 2029: Mandatory e-invoicing goes live. VAT invoices for B2B and B2G supplies must be issued and received as structured e-invoices. (status: future)
Full timeline: https://einvoices.uk/timeline
## Frequently asked questions
### When does e-invoicing become mandatory in the UK?
The government has confirmed that e-invoicing will be mandatory for VAT invoices from April 2029.
### Who does the UK e-invoicing mandate apply to?
It applies to VAT invoices issued between VAT-registered businesses (B2B) and from businesses to public-sector bodies (B2G). Details of any exemptions, thresholds and the treatment of B2C sales are expected in the implementation roadmap.
### Will HMRC run a central e-invoicing portal?
No. The UK has chosen a decentralised model. Invoices are exchanged between businesses through service providers on the Peppol network, without a central government platform in the invoice flow.
### Will invoices be reported to HMRC in real time?
Not at launch. The government's response to the 2025 consultation said real-time reporting will not be introduced alongside the mandate.
### Does a PDF invoice count as an e-invoice?
No. An e-invoice is structured, machine-readable data. A PDF, even one sent by email, is not an e-invoice under the mandate.
### What happens next?
HMRC and the Department for Business and Trade committed to publishing a roadmap with milestones at Budget 2026, which takes place on 28 October 2026.
---
How to cite: "UK e-invoicing mandate 2029: the complete guide", einvoices.uk, 20 October 2026, https://einvoices.uk/mandate
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing glossary A to Z: UK terms explained
> Plain-English definitions of the e-invoicing terms UK businesses will meet before April 2029, from Access Point and CIUS to UBL, ViDA and the VAT gap.
- Canonical URL: https://einvoices.uk/glossary (each term has an anchor, for example https://einvoices.uk/glossary#access-point)
- Last updated: 20 October 2026 (2026-10-20)
- Publisher: einvoices.uk (https://einvoices.uk)
- Terms: 47
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Electronic invoicing: promoting e-invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/electronic-invoicing-promoting-e-invoicing-across-uk-businesses-and-the-public-sector)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Electronic Address Scheme (EAS) code list](https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/)
- [Peppol Continuous Transaction Controls Reference Document](https://peppol.org/wp-content/uploads/2023/02/Peppol-CTC-Reference-Document-v1.0.pdf)
- [2. Tax gaps: VAT](https://www.gov.uk/government/statistics/measuring-tax-gaps/2-tax-gaps-vat)
---
This glossary explains, in plain English, the e-invoicing terms UK businesses will meet before the mandate starts on **April 2029**. Where a term has a fuller entry, follow the link to our [glossary pages](https://einvoices.uk/glossary).
Definitions marked "official" follow wording used in UK government documents. The others are our plain-English summaries.
## A–C
**Access Point (AP).** A certified provider that connects you to the Peppol network and sends and receives documents on your behalf. Corners 2 and 3 of the four-corner model. See [Peppol Access Point](#access-point) and [How to choose one](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
**AS4.** The secure messaging protocol Peppol Access Points use to exchange documents with each other. You will rarely need to think about it.
**B2B, B2G, B2C.** Business-to-business, business-to-government and business-to-consumer. The UK mandate covers VAT invoices, which the government says are typically issued for B2B and B2G transactions "though not for business to customer transactions". See [B2B](#b2b-b2g-b2c) and [B2G](#b2b-b2g-b2c).
**BIS (Business Interoperability Specification).** Peppol's name for an implementation guide for a business process, such as billing.
**Bridging software (official).** A tool that links spreadsheets or other non-compatible records to HMRC's systems so a business can meet Making Tax Digital requirements.
**BT- numbers.** Business Terms in EN 16931, each identifying a data field. BT-10, for example, is the buyer reference. See [Buyer reference and PO reference](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
**BR- rules.** Business Rules in EN 16931 and Peppol that validation checks against. BR-CO-15, for instance, checks that the invoice total with VAT equals the total without VAT plus the total VAT. See [BR-CO-15](https://einvoices.uk/news/peppol-validation-error-br-co-15).
**CII (Cross Industry Invoice).** An XML syntax from UN/CEFACT. EN 16931 can be expressed in UBL or CII. See [UBL vs CII](https://einvoices.uk/news/ubl-vs-cii-uk).
**CIUS (Core Invoice Usage Specification).** A set of extra rules layered on EN 16931 for a specific community. Peppol BIS Billing 3.0 is a CIUS. Whether the UK publishes its own is not yet known. See [CIUS](#cius).
**Clearance model (official).** "A government authority or approved third party validates and clears e-invoices prior to being issued to the customer." The UK is not using one. See [Clearance vs decentralised](https://einvoices.uk/news/decentralised-vs-clearance-model).
**Continuous transaction controls (CTC) (official).** "A collective term for various real time digital tax controls". See [CTC](#continuous-transaction-controls).
**Credit note.** A document reducing or cancelling an amount invoiced. It will need to be structured too. See [Credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
## D–F
**Decentralised model (official).** "E-invoice data is submitted through authorised software providers", with no central government hub. This is the UK's chosen model. See [Decentralised model](https://einvoices.uk/news/decentralised-vs-clearance-model).
**Digital links.** Under MTD for VAT, the electronic transfer of data between software programs. Copy and paste does not count.
**EAS code (Electronic Address Scheme).** A code that says what kind of identifier a Peppol address uses. In Peppol's list, 9932 is "United Kingdom VAT number" and 0088 is "Global Location Number". See [Peppol EAS codes](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
**EDI (electronic data interchange).** Older, usually bilateral exchange of structured business documents. See [E-invoicing vs EDI](https://einvoices.uk/news/e-invoicing-vs-edi).
**EDIFACT (official).** A UN standard for EDI "approved and published by the United Nations Economic Commission for Europe (UNECE) in 1987."
**E-invoice (official).** "An invoice document that is issued, transmitted, and received in a structured format which allows for automatic electronic processing." A PDF is not one. See [Does a PDF count?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
**EN 16931.** The European standard setting out the core data of an electronic invoice. UK public bodies must accept invoices complying with BS EN 16931-1:2017. See [EN 16931 explained](https://einvoices.uk/news/en-16931-explained).
**E-reporting.** Sending transaction data, rather than full invoices, to a tax authority. France uses the term for its reporting regime. Not part of the UK mandate at launch.
**Five-corner model (official).** Builds on the four-corner model by "introducing the ability for businesses to share information in real time, or close to real time, with the government authority (who act as the 5th corner)." See [Five-corner model](https://einvoices.uk/news/five-corner-model-uk).
**Four-corner model (official).** "An e-invoicing model where businesses exchange e-invoices through their service providers". Supplier, supplier's provider, buyer's provider, buyer. See [Four-corner model explained](https://einvoices.uk/news/four-corner-model-explained).
## G–O
**GLN (Global Location Number).** A GS1 identifier for organisations and locations, common in the NHS and retail. Peppol EAS code 0088.
**Interoperability.** The ability to exchange invoices with anyone, whichever provider each side uses. It is the main reason the UK chose a single network.
**Invoice Response.** A Peppol message from buyer to supplier saying an invoice has been received, accepted, rejected or queried. See [Invoice response and MLR](https://einvoices.uk/news/peppol-invoice-response-message-level-response).
**Making Tax Digital (MTD).** HMRC's programme requiring digital records and software filing, for VAT since 2019 and for Income Tax since April 2026. See [MTD](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital) and [E-invoicing vs MTD](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital).
**Message Level Response (MLR).** A technical Peppol message reporting whether a received document passed validation.
**OpenPeppol.** The non-profit association under Belgian law that governs Peppol.
## P–R
**Participant ID / Peppol ID.** Your address on Peppol: an EAS code plus an identifier, such as a UK VAT number. See [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) and [Peppol IDs in the UK](https://einvoices.uk/news/peppol-participant-id-uk).
**PDF/A.** An archival PDF format. Some consultation respondents asked for it as a low-cost option. It is still a PDF, not structured data.
**Peppol.** The international network and specifications the UK announced on 23 June 2026 as "the core interoperability network for e-invoicing in the UK". See [What is Peppol?](https://einvoices.uk/news/what-is-peppol).
**Peppol Authority.** The body that oversees Peppol in a jurisdiction. See [UK Peppol Authority](https://einvoices.uk/news/peppol-authority-uk).
**Peppol BIS Billing 3.0.** Peppol's invoice and credit note specification, a CIUS of EN 16931. See [Peppol BIS Billing 3.0 UK guide](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide).
**Peppol Directory.** A searchable list of registered Peppol participants. See [Peppol directory lookup](https://einvoices.uk/news/peppol-directory-lookup-uk).
**Real-time reporting (RTR) (official).** "The process of reporting tax information to tax authorities as transactions are made." Not part of the UK mandate in 2029. See [Will HMRC require RTR?](https://einvoices.uk/news/real-time-reporting-uk).
**Reverse charge.** Where the customer, not the supplier, accounts for VAT, as in the domestic reverse charge for construction. See [Reverse charge e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## S–Z
**Self-billing.** The customer raises the invoice on the supplier's behalf, by agreement. UK treatment under the mandate is not yet confirmed. See [Self-billing](https://einvoices.uk/news/self-billing-e-invoicing-uk).
**Simplified invoice.** A shorter VAT invoice allowed for smaller retail sales. Whether these are in scope is not yet confirmed. See [Receipts and simplified invoices](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing).
**SML and SMP.** The Service Metadata Locator and Service Metadata Publisher, the "phone book" services that tell a sender's Access Point where and how to deliver. See [SMP and SML explained](https://einvoices.uk/news/peppol-smp-sml-explained).
**Structured data.** Data in fixed, labelled fields that software can read without human interpretation. See [Structured data](#structured-data).
**UBL (Universal Business Language) (official).** An "open standard for electronic business documents". The usual syntax for Peppol invoices. See [UBL](https://einvoices.uk/news/ubl-vs-cii-uk).
**Validation.** Automatic checks that an invoice meets the schema and business rules. Failed invoices are rejected. See [Common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors).
**VAT category code.** A code on each invoice line saying how VAT applies, such as S (standard), Z (zero), E (exempt) or AE (reverse charge). See [UK VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol).
**VAT gap (official).** "The difference between the VAT theoretical liability, estimated using national accounts data, and actual cash receipts." HMRC put it at 6.6% (£12.1 billion) for 2024 to 2025. See [E-invoicing and the VAT gap](https://einvoices.uk/news/e-invoicing-vat-gap).
**VAT invoice (official).** "An invoice which must contain information required by the VAT Act." See [VAT invoice requirements](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing).
**ViDA (VAT in the Digital Age).** The EU package adopted in March 2025, including digital reporting for intra-EU trade from 1 July 2030. EU law, not UK law. See [Selling to EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
**XML.** The text format in which UBL and CII invoices are written. See [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
## What to do now
Bookmark this page. Most businesses will never need to touch an XML file, but knowing the terms makes software demos and supplier conversations much easier. Then work through the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
---
How to cite: "E-invoicing glossary A to Z: UK terms explained", einvoices.uk, 20 October 2026, https://einvoices.uk/glossary
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing client letter template for UK accountants
> Free, editable letters to tell clients about the April 2029 e-invoicing mandate: small business, ERP and non-VAT-registered versions, plus a short email.
- Canonical URL: https://einvoices.uk/news/e-invoicing-client-letter-template-accountants
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Accountants, Small business, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response (26 November 2025)](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary (23 June 2026)](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Register for VAT (GOV.UK)](https://www.gov.uk/register-for-vat)
- [Electronic invoicing: SME usage and attitudes (HMRC, 26 March 2026)](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes)
## Key points
- Three editable letters cover VAT-registered small businesses, larger businesses using an ERP, and clients who are not VAT-registered.
- Each letter states only what was confirmed as of 20 October 2026: VAT invoices must be e-invoices from April 2029, over a decentralised model with Peppol as the core network.
- The letters name no software product and link to official GOV.UK sources.
- A short email version suits newsletters and client portals.
- The templates are free to reuse and edit, with attribution to einvoices.uk.
---
Below are **three editable client letters** about UK e-invoicing, one for each common client type, plus a **short email version**. Each states only what is **confirmed as of 20 October 2026**, names no software product, and links to GOV.UK. Copy the text, replace the [square brackets] and send it on your own letterhead.
HMRC's March 2026 research found that SMEs see their accountants and software providers as their first port of call for e-invoicing, not HMRC. The consultation response says accountants "would play a vital role" in communicating the change. A short letter now, followed by a fuller update after the Budget 2026 roadmap on **28 October 2026**, meets that expectation without getting ahead of the facts.
**Free to reuse.** You may copy, edit and send these templates, including on your practice website, with a credit to einvoices.uk. They are general information, not tax advice; adapt them to your engagement terms.
## Before you send: what is confirmed
Paste this box into any letter, or attach it. Check it against our [mandate page](https://einvoices.uk/mandate) on the day you send, because the roadmap may change it.
> **UK e-invoicing: confirmed as of 20 October 2026**
> - From **April 2029**, VAT invoices for business-to-business and business-to-government sales must be issued as **e-invoices**. (Budget 2025; consultation response, 26 November 2025)
> - An e-invoice is **structured data** sent between accounting systems. PDF, Word and emailed invoices do **not** count.
> - The model is **decentralised**: businesses choose their own software or provider.
> - **Peppol** will be "the core interoperability network for e-invoicing in the UK". (Tax update 2026, 23 June 2026)
> - **No real-time reporting** to HMRC at launch.
> - A government **roadmap** is due at **Budget 2026 on 28 October 2026**.
>
> **Not yet confirmed:** the exact data format, penalties, the position of businesses that are not VAT-registered, and any government support.
## Letter 1: VAT-registered small business
> [Practice name]
> [Date]
>
> Dear [Client name],
>
> **E-invoicing: what is changing for [Business name] from April 2029**
>
> We are writing to let you know about a change to how VAT invoices will work in the UK, so that you have plenty of time to prepare.
>
> **What is changing.** The government has confirmed that from April 2029, VAT invoices sent to other businesses and to the public sector must be issued as e-invoices. An e-invoice is not a PDF or an emailed invoice. It is information sent directly from your accounting software to your customer's software, usually without anyone retyping it. The government has said invoices will travel over a network called Peppol, and that businesses will be able to choose their own software provider.
>
> **What this means for you.** As you are VAT-registered and sell to other businesses, the April 2029 requirement is expected to apply to you. You will also be receiving e-invoices from your suppliers into your software.
>
> **What is not yet known.** HMRC has not yet published the full technical details, any penalties or the exact steps. The government will publish a roadmap on 28 October 2026, and we will write to you again once we have reviewed it.
>
> **What we suggest now.** You do not need to buy anything yet. In the meantime, it would help if you could:
> 1. tell us which software you use to raise invoices and record bills, if we do not already know;
> 2. make sure your customer records hold each customer's full legal name, address and VAT number; and
> 3. note any customers, such as the NHS or larger companies, who already ask you to send invoices through a portal or network.
>
> We will review your current setup with you [at your next review / before date] and agree a plan well ahead of April 2029.
>
> If you have any questions, please contact [name] on [phone] or [email].
>
> Yours sincerely,
>
> [Name]
> [Practice name]
>
> *Background: GOV.UK, [Promoting electronic invoicing: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response). Template adapted from einvoices.uk.*
## Letter 2: larger business with an ERP or several systems
> [Practice name]
> [Date]
>
> Dear [Finance director name],
>
> **UK mandatory e-invoicing from April 2029: planning for [Company name]**
>
> As part of our advisory work, we want to flag the UK's mandatory e-invoicing programme, which is likely to affect your finance systems and processes.
>
> **Confirmed position (as of [date]).** From April 2029, all VAT invoices for business-to-business and business-to-government supplies must be issued as e-invoices. The government has confirmed a decentralised model, with Peppol as the core interoperability network, and no real-time reporting to HMRC at launch. It has said it will continue to engage with stakeholders on legacy systems that cannot interoperate in the future system.
>
> **Why it matters to you.** E-invoicing affects both sales invoicing and accounts payable. For a business of your size, the work typically involves your ERP or billing system, any EDI links or customer portals you use today, supplier master data and approval workflows. Lead times for system changes are often longer than for the regulatory detail itself.
>
> **Still to be confirmed.** The UK data specification, transitional rules, penalties and any requirements for software and service providers. The government's roadmap is due on 28 October 2026.
>
> **Suggested next steps.**
> 1. Nominate an owner for e-invoicing within finance and IT.
> 2. Ask your ERP and billing system providers, in writing, for their UK Peppol plans and dates.
> 3. List your invoice flows: sales, purchases, self-billing, credit notes, intercompany and any reverse charge or multi-currency invoices.
> 4. Identify customers and suppliers already using Peppol, including any public sector customers.
> 5. Budget for the project in your [year] plans.
>
> We would be happy to [run a short scoping session / review the VAT aspects of your plan]. Please contact [name] to arrange a time.
>
> Yours sincerely,
>
> [Name]
> [Practice name]
>
> *Background: GOV.UK, [Tax update 2026 summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary). Template adapted from einvoices.uk.*
## Letter 3: client who is not VAT-registered
> [Practice name]
> [Date]
>
> Dear [Client name],
>
> **E-invoicing from 2029: does it affect you?**
>
> You may have seen news that e-invoicing will become mandatory in the UK. We want to explain where you stand.
>
> **The rule applies to VAT invoices.** From April 2029, VAT invoices sent to other businesses and the public sector must be issued as e-invoices. As [Business name] is not currently registered for VAT, you do not issue VAT invoices. The government has said that many of the smallest businesses that are not required to register for VAT, and choose not to, "will not be obliged to adopt this technology".
>
> **What is not yet confirmed.** The government has not yet said whether businesses that are not VAT-registered will need to receive e-invoices from their suppliers, or how they might take part voluntarily. More detail is expected in a roadmap on 28 October 2026.
>
> **When this could change for you.** If your taxable turnover goes over the VAT registration threshold (currently £90,000 in a rolling 12 months), or you choose to register, e-invoicing would apply to your VAT invoices. [We estimate your current turnover at £[X] / Your turnover is close to the threshold], so [this is unlikely to affect you soon / we should plan for it].
>
> **What we suggest.** No action is needed now. If you are choosing new invoicing software anyway, it is worth asking whether it can send and receive e-invoices over Peppol.
>
> We will let you know if anything changes. Please contact [name] with any questions.
>
> Yours sincerely,
>
> [Name]
> [Practice name]
>
> *Background: GOV.UK, [Register for VAT](https://www.gov.uk/register-for-vat). Template adapted from einvoices.uk.*
## Short email version
> **Subject: E-invoicing becomes mandatory for VAT invoices from April 2029**
>
> Hi [name],
>
> A quick heads-up: from April 2029, VAT invoices to other businesses and the public sector must be sent as e-invoices. That means structured data sent from your software to your customer's software over a network called Peppol, not a PDF by email.
>
> You don't need to do anything yet. The government publishes its detailed roadmap on 28 October 2026, and we'll be in touch afterwards with what it means for you. In the meantime, it helps to make sure your customer records include full legal names, addresses and VAT numbers.
>
> Any questions, just reply to this email.
>
> [Name], [Practice name]
## Tips for using these letters
- **Date everything.** Write "as of [date]" next to any statement of what is confirmed.
- **Do not promise timelines** that HMRC has not published, such as phased dates by business size. None has been announced.
- **Keep software advice separate.** If clients ask what to use, our [software checklist](https://einvoices.uk/news/check-accounting-software-peppol-support) and dated software status table give a neutral starting point.
- **Segment your client list** with the [scope checker](https://einvoices.uk/tools/am-i-in-scope) logic: VAT-registered and selling B2B or B2G, VAT-registered but B2C only, and not VAT-registered.
- **Plan the follow-up** for after 28 October 2026. See our [guide for accountants](https://einvoices.uk/news/e-invoicing-guide-for-accountants) for a practice-wide plan.
## What to do now
1. Pick the letter for each client segment and add your details.
2. Check the "confirmed" box against the [mandate page](https://einvoices.uk/mandate) on the day you send.
3. Diary a second mailing for after the Budget 2026 roadmap.
## Frequently asked questions
### Should accountants write to clients about e-invoicing now?
A short, factual letter now is reasonable: the April 2029 date and the Peppol network are confirmed, and HMRC's research found SMEs see their accountant as a first port of call. Promise a fuller update once the Budget 2026 roadmap is published on 28 October 2026.
### Can I put these templates on my practice website or send them to clients?
Yes. They are free to copy, edit and send, including commercially, as long as you credit einvoices.uk somewhere in the material, for example in a footer.
### Do non-VAT-registered clients need to do anything?
The mandate applies to VAT invoices, and the government has said many of the smallest businesses that are not VAT-registered will not be obliged to adopt e-invoicing. Whether they will need to receive e-invoices has not been confirmed. Clients close to the £90,000 VAT threshold should plan as if they will be in scope.
### Should the letter recommend a software product?
Keep the letter neutral and discuss software in a separate conversation. What suits a client depends on their current system, invoice volumes and customers.
---
How to cite: "E-invoicing client letter template for UK accountants", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-client-letter-template-accountants
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK e-invoicing statistics: every figure, sourced
> Every UK e-invoicing figure we could verify: HMRC's SME survey, Peppol Directory counts, consultation numbers and benefit estimates, with publisher, date, method and link.
- Canonical URL: https://einvoices.uk/news/e-invoicing-statistics-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: HMRC, 2029 mandate, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Electronic invoicing: quantitative research into SMEs' usage and attitudes (HMRC, 26 March 2026)](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes/electronic-invoicing-quantitative-research-into-small-and-medium-sized-enterprises-usage-and-attitudes)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response (26 November 2025)](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Government sets out plans for 'e-invoicing' overhaul to cut paperwork (13 February 2025)](https://www.gov.uk/government/news/government-sets-out-plans-for-e-invoicing-overhaul-to-cut-paperwork)
- [Annual UK VAT statistics 2024 to 2025 commentary (HMRC, 3 December 2025)](https://www.gov.uk/government/statistics/value-added-tax-vat-annual-statistics/annual-uk-vat-statistics-2023-to-2024-commentary)
- [Measuring tax gaps 2026 edition: 2. Tax gaps: VAT (HMRC, 23 June 2026)](https://www.gov.uk/government/statistics/measuring-tax-gaps/2-tax-gaps-vat)
- [Peppol Certified Service Providers (OpenPeppol, list updated 19 October 2026)](https://peppol.org/members/peppol-certified-service-providers/)
- [Peppol Directory](https://directory.peppol.eu/)
## Key points
- HMRC's survey of 800 VAT-registered SMEs found 29% use e-invoicing, 15% send e-invoices and 24% receive them.
- On 20 October 2026 the Peppol Directory listed 22,664 GB entries, 22,125 of them with a UK VAT number ID: about 1% of the 2,285,900 live VAT-registered traders.
- The 2025 consultation drew 342 responses, and 63% agreed with focusing on a decentralised model.
- Benefit figures such as a 20% cut in late payments and £11,300 a year saved come from industry research cited by the government, not from government estimates.
- HMRC estimates the VAT gap at 6.6%, or £12.1 billion, in 2024 to 2025.
---
The most reliable UK e-invoicing figures come from **HMRC's survey of 800 VAT-registered SMEs**, where **29% said they use e-invoicing** but only **15% send** e-invoices and **24% receive** them. On the network side, the **Peppol Directory listed 22,664 UK (GB) entries on 20 October 2026**, about **1% of VAT-registered businesses**. Everything else widely quoted, including the "20% fewer late payments" figure, is industry research the government has cited, not a government estimate.
Each figure below has its publisher, date, method and a link to the original. We have left out figures we could not trace to a primary source. Where a number is a vendor or industry claim, we say so.
## Adoption and use
| Figure | Publisher and date | Method | Source |
|---|---|---|---|
| 29% of SMEs use e-invoicing | HMRC (research by IFF Research), published 26 March 2026 | Telephone survey of 800 VAT-registered SMEs, 24 February to 18 March 2025, weighted | [HMRC quantitative research](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes/electronic-invoicing-quantitative-research-into-small-and-medium-sized-enterprises-usage-and-attitudes) |
| 15% send e-invoices; 24% receive them; 10% do both | Same | Same | Same |
| 80% send mainly by PDF or email; 89% receive mainly by PDF or email | Same | Same | Same |
| Sage was the most frequently used software | Same | Same | Same |
| 126 of 342 consultation respondents were current e-invoicing users | HM Treasury and HMRC, 26 November 2025 | Self-selected consultation responses, not a sample | [Consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) |
HMRC's survey used e-invoicing to mean structured data "that allows for automatic and electronic processing", excluding PDFs and emails. The report itself warns that quota sampling limits how far results can be generalised. Our [summary of the HMRC research](https://einvoices.uk/news/hmrc-sme-e-invoicing-research-findings) covers more findings.
## Peppol network in the UK
| Figure | Publisher and date | Method | Source |
|---|---|---|---|
| 22,664 GB entries in the Peppol Directory | einvoices.uk, 20 October 2026 | Daily query of the Peppol Directory search API filtered to country GB | [UK Peppol adoption tracker](https://einvoices.uk/data/uk-peppol-adoption) |
| 22,125 of those use a UK VAT number (scheme 9932) as Peppol ID | Same | Same | Same |
| About 1.0% of VAT-registered businesses have a 9932 Peppol ID | einvoices.uk, 20 October 2026 | 22,125 divided by HMRC's 2,285,900 live traders; an order-of-magnitude indicator | Same |
| 681 new GB entries registered 20 September to 19 October 2026 | einvoices.uk | Directory registration dates | Same |
| 21,567 GB entries accept Peppol BIS Billing 3.0 invoices | einvoices.uk, 20 October 2026 | Document types registered in the Directory | Same |
| 18 of 756 Peppol certified service providers are UK-resident | OpenPeppol, list updated 19 October 2026 | OpenPeppol's own register; country is legal residence | [OpenPeppol list](https://peppol.org/members/peppol-certified-service-providers/) |
The tracker updates daily, so the live page will show newer numbers than this table. Its caveats matter: Directory listing is optional, one business can have several entries, and an entry shows a business can receive on Peppol, not that it sends e-invoices. See our UK provider list for the 18 providers.
## Population and scope
| Figure | Publisher and date | Method | Source |
|---|---|---|---|
| 2,285,900 live VAT-registered traders in 2024 to 2025 | HMRC, 3 December 2025 | Administrative VAT register data | [Annual UK VAT statistics](https://www.gov.uk/government/statistics/value-added-tax-vat-annual-statistics/annual-uk-vat-statistics-2023-to-2024-commentary) |
| 234,000 new VAT registrations and 218,000 de-registrations in 2024 to 2025 | Same | Same | Same |
This is the closest official count of the businesses likely to be within the [April 2029 mandate](https://einvoices.uk/mandate), which covers VAT invoices. Check your own position with the [scope checker](https://einvoices.uk/tools/am-i-in-scope).
## The 2025 consultation in numbers
All from the consultation response of 26 November 2025. Consultation responses are self-selected, so these describe who replied, not UK businesses as a whole.
| Figure | Detail |
|---|---|
| 342 responses | 259 based only in the UK, 30 in the UK and abroad, 30 only overseas |
| 203 business respondents | 141 were SMEs (92 micro, 31 small, 18 medium) and 40 had more than 250 employees |
| Largest sectors | Accountancy, bookkeeping and tax (18%) and software (15%) |
| 63% | Agreed the government was right to focus on a decentralised model; most others expressed no opinion |
| 69% | Of 255 who answered, used an accountant |
See our [consultation summary](https://einvoices.uk/news/uk-e-invoicing-consultation-2025-summary).
## Benefit figures the government has cited
These appear in official documents, but the government attributes them to other sources. None is an HMRC or Treasury estimate of the UK mandate's effect.
| Figure | Where it appears | Original source, as stated |
|---|---|---|
| 20% fewer late payments on adoption | Consultation response, foreword and chapter 2 | "Industry research"; one software provider's research; also "a leading organisation" survey of 9,000 businesses. Publisher not named |
| £11,300 annual saving for small firms | Consultation response | Same 9,000-business survey |
| 3% labour productivity boost in finance-heavy sectors | Consultation response | Same |
| 2.2 times return on investment over 2 years for firms under 50 staff | Consultation response | "Industry research" |
| Four-day reduction in average payment times | Consultation response | One software provider's research |
| Invoicing costs cut by 60% to 80% | Consultation response, chapter 4 | No source given |
| E-invoice processing costs 38% of paper and 43% of PDF | Consultation response | New Zealand Ministry of Business, Innovation and Employment |
| £30 to £50 per invoice | Consultation response | "A few" respondents; the response says the figures are not representative |
| 80% of businesses globally key supplier invoices manually; about 10% of keyed data has errors | Government press release, 13 February 2025 | "Industry research" |
Treat these as **reported**, not confirmed. Before you repeat one, quote it as "industry research cited by the government". Our [benefits guide](https://einvoices.uk/news/e-invoicing-benefits-uk) discusses what they can and cannot tell you.
## Tax gap figures
| Figure | Publisher and date | Source |
|---|---|---|
| VAT gap 6.6% of theoretical liability, £12.1 billion, 2024 to 2025 | HMRC, Measuring tax gaps 2026 edition, 23 June 2026 | [Tax gaps: VAT](https://www.gov.uk/government/statistics/measuring-tax-gaps/2-tax-gaps-vat) |
| VAT gap fell from 14.1% (2005 to 2006) to 6.6% | Same | Same |
| Error was 15% of the overall tax gap in 2023 to 2024 | Consultation response, citing HMRC tax gap data | Consultation response |
| Failure to take reasonable care and error were 22% of the VAT gap in 2022 to 2023 | Government press release, 13 February 2025 | [Press release](https://www.gov.uk/government/news/government-sets-out-plans-for-e-invoicing-overhaul-to-cut-paperwork) |
The government has not published a revenue estimate for the e-invoicing mandate itself. See [e-invoicing and the VAT gap](https://einvoices.uk/news/e-invoicing-vat-gap).
## Figures we left out
- **Market-size forecasts** from paid research reports: methods are not public.
- **Global vendor surveys** presented as UK data.
- **Any "share of UK businesses using Peppol"** that does not state its numerator and denominator.
- **Phased start dates** some vendors publish: no phasing has been announced as of 20 October 2026.
## How to cite this page
Quote the original publisher first, then link here if useful, for example: "29% of VAT-registered SMEs use e-invoicing (HMRC, March 2026, via einvoices.uk)". For Peppol counts, cite the [tracker](https://einvoices.uk/data/uk-peppol-adoption) with the date you read it.
## What to do now
- If you are writing about UK e-invoicing, use the figures above with their dates and caveats.
- If you run a business, the numbers say most of your suppliers and customers are not on Peppol yet. Start with the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
- Watch for new official figures in the Budget 2026 roadmap on 28 October 2026. We will add them here.
## Frequently asked questions
### How many UK businesses use e-invoicing?
In HMRC's survey of 800 VAT-registered SMEs, run in February and March 2025, 29% said they use e-invoicing, 15% send e-invoices and 24% receive them. Only 10% both sent and received.
### How many UK businesses are on Peppol?
On 20 October 2026 the public Peppol Directory listed 22,664 entries with a GB country code, 22,125 of them using a UK VAT number as their Peppol ID. That is roughly 1% of HMRC's 2,285,900 live VAT-registered traders. Listing is optional, so the true number is somewhat higher.
### Does e-invoicing really cut late payments by 20%?
That figure comes from industry research cited in the government's consultation response, attributed to a respondent's survey of 9,000 businesses. The response does not name the publisher or give the method, so treat it as a reported figure, not an official estimate.
### How many responses did the UK e-invoicing consultation get?
342. Of these, 259 respondents were based only in the UK, 30 in the UK and abroad, and 30 only overseas.
---
How to cite: "UK e-invoicing statistics: every figure, sourced", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-statistics-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Budget 2026: five things the e-invoicing roadmap must answer
> HMRC and DBT promised a roadmap for the April 2029 e-invoicing mandate at Budget 2026 on 28 October. These are the questions it needs to settle.
- Canonical URL: https://einvoices.uk/news/budget-2026-e-invoicing-roadmap-what-to-watch
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: Budget, 2029 mandate, HMRC, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
---
The Chancellor delivers the Budget on **Wednesday 28 October 2026**, and for anyone working on e-invoicing it is the most important date of the year. HMRC's 2026 update to its transformation roadmap says HMRC will work with the Department for Business and Trade to publish a roadmap for the mandate at Budget 2026, setting out the milestones to April 2029.
Here is what we will be looking for on the day.
## 1. The data standard
Peppol is confirmed as the network, but businesses and software providers need to know exactly what an invoice must contain. Will the UK adopt Peppol BIS Billing 3.0 as it stands, or publish a UK-specific set of rules (a [CIUS](https://einvoices.uk/glossary#cius))? Software vendors need this to plan their builds.
## 2. Scope at the edges
The headline scope is clear: B2B and B2G VAT invoices. The edges are not. We want to see how the roadmap treats:
- B2C sales, receipts and simplified VAT invoices
- Self-billing arrangements
- Cross-border supplies to and from the UK
- Any thresholds or later start dates for the smallest businesses
## 3. Provider accreditation
In a decentralised model, service providers do a lot of the work. Who can act as an Access Point for UK invoices, and what standards will they have to meet?
## 4. Penalties and transition
How will non-compliance be treated in the first months, and what happens to legacy systems that cannot connect to Peppol? The government has said it will keep engaging on legacy systems.
## 5. The path to reporting
Real-time reporting is off the table at launch. Does the roadmap say anything about whether, or when, invoice data might be reported to HMRC in future?
## What if the roadmap is thin?
Even a high-level roadmap would be useful if it fixes dates for specifications, legislation and guidance. We will update this article, the [timeline](https://einvoices.uk/timeline) and the [mandate guide](https://einvoices.uk/mandate) as soon as the documents are published.
## Frequently asked questions
### When is Budget 2026?
The Budget is on Wednesday 28 October 2026.
### Will the start date change?
There has been no indication that the April 2029 start date will move. The roadmap is expected to set out milestones towards it.
---
How to cite: "Budget 2026: five things the e-invoicing roadmap must answer", einvoices.uk, 20 October 2026, https://einvoices.uk/news/budget-2026-e-invoicing-roadmap-what-to-watch
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# HMRC research: only 29% of SMEs say they use e-invoicing
> HMRC's research into SME e-invoicing found low awareness, heavy reliance on PDFs and email, and a clear call for guidance before the 2029 mandate.
- Canonical URL: https://einvoices.uk/news/hmrc-sme-e-invoicing-research-findings
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: Small business, HMRC, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Electronic invoicing: SME usage and attitudes (HMRC, 26 March 2026)](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes)
- [Quantitative research into SME usage and attitudes](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes/electronic-invoicing-quantitative-research-into-small-and-medium-sized-enterprises-usage-and-attitudes)
- [Qualitative research into SME usage and attitudes](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes/electronic-invoicing-qualitative-research-into-small-and-medium-sized-enterprises-usage-and-attitudes)
---
Most small and medium-sized businesses still invoice by PDF and email, and many do not know what an e-invoice actually is. That is the picture from research HMRC published on 26 March 2026, which it says has informed its e-invoicing policy and will shape its guidance ahead of the [April 2029 mandate](https://einvoices.uk/mandate).
## What HMRC studied
HMRC commissioned two pieces of research:
- **A survey of 800 VAT-registered SMEs** (fewer than 250 employees), run by IFF Research by telephone between 24 February and 18 March 2025.
- **45 in-depth interviews** with SMEs, both users and non-users of e-invoicing, run by Ipsos in May and June 2025.
Both reports carry a caveat: the survey used quota sampling and the interviews are qualitative, so neither can be generalised to every UK SME. The views are the researchers', not necessarily HMRC's.
Importantly, the survey defined e-invoices as invoices "issued, sent, and received in a structured data format that allows for automatic and electronic processing", and said this **does not include PDFs or emails**. That is the same distinction the mandate will draw. See [does a PDF invoice count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice)
## The headline numbers
| Finding | Result |
|---|---|
| Familiar with the definition of e-invoicing | 59% (19% very familiar) |
| Say they use e-invoicing | 29% |
| Use e-invoicing: small firms (0–49 staff) | 29% |
| Use e-invoicing: medium firms (50–249 staff) | 36% |
| Don't recall any HMRC communication about e-invoicing | 91% |
The way businesses actually exchange invoices is even more telling:
| Method | Used to send | Used to receive |
|---|---|---|
| PDF or email | 95% | 98% |
| Paper or post | 36% | 78% |
| E-invoicing | 15% | 24% |
Only 10% both sent and received e-invoices. E-invoicing was the main sending method for just 9% of firms, against 80% for PDF or email.
Awareness was lowest in manufacturing, primary industries and construction, where a third of firms (33%) were not at all familiar with e-invoicing.
## Software is already there
Nearly every SME surveyed used accounting software. Sage was the most common (48%), followed by Xero (17%) and QuickBooks (9%); only 5% said they used none. The interviews found that firms often have e-invoicing features available in that software but rarely use them.
That matters for 2029: for many small businesses, getting ready may be more about switching on and configuring what they already pay for than buying something new. Ask your provider about their Peppol plans; our guide on [checking your accounting software](https://einvoices.uk/news/check-accounting-software-peppol-support) lists the questions.
## Why SMEs hold back
The interviews point to practical, not ideological, reasons:
- **"If it isn't broken."** Firms value stable processes that get them paid. Many saw no pressing reason to change.
- **Compatibility worries.** Owners feared their software would not work with clients' and suppliers' systems, particularly overseas and in construction.
- **Loss of control.** Some worried they could not customise invoices or reminders.
- **Multiple systems.** Running several tools already adds checks, training and cost.
The researchers concluded that "without a mandate or strong industry-wide movement", non-users seem unlikely to adopt e-invoicing voluntarily. The mandate is that push.
## Common misconceptions
- Treating any digital invoice, including an emailed PDF, as an e-invoice.
- Believing e-invoicing is only for very large organisations.
- Not realising they already send or receive a few e-invoices through a customer portal or software.
## What SMEs want
Businesses said their accountants and software providers are their first port of call, not HMRC. If e-invoicing became mandatory, they expected a "similarly comprehensive and visible communication campaign" to Making Tax Digital, and smaller firms asked for help with training and costs.
## What to do now
1. Check whether your accounting software can already send and receive e-invoices, and switch it on for a willing customer or supplier.
2. Ask your accountant how they plan to support clients through 2029. Accountants: see our [guide for accountants](https://einvoices.uk/news/e-invoicing-guide-for-accountants).
3. Use the [scope checker](https://einvoices.uk/tools/am-i-in-scope) and the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist) to plan.
## Frequently asked questions
### How many UK small businesses use e-invoicing?
In HMRC's 2025 survey of 800 VAT-registered SMEs, 29% said they use e-invoicing. Only 15% said they send e-invoices and 24% that they receive them.
### Is an emailed PDF an e-invoice?
No. HMRC's research defined e-invoices as structured data that can be processed automatically, and explicitly excluded PDFs and emails. Many SMEs confuse the two.
---
How to cite: "HMRC research: only 29% of SMEs say they use e-invoicing", einvoices.uk, 20 October 2026, https://einvoices.uk/news/hmrc-sme-e-invoicing-research-findings
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol confirmed as the network for UK e-invoicing
> The government has confirmed Peppol as the core interoperability network for the UK's 2029 e-invoicing mandate, using a decentralised, four-corner model.
- Canonical URL: https://einvoices.uk/news/peppol-confirmed-uk-e-invoicing-network
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, 2029 mandate, HMRC, Four-corner model
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness (summary)](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
Peppol will be the backbone of UK e-invoicing. In its Tax Update on 23 June 2026, the government announced that Peppol "will be the core interoperability network for e-invoicing in the UK", ahead of the mandate that starts on April 2029.
The government said the decision gives software developers and taxpayers "an indication of the direction of travel" so they can begin planning product development and rollout. It also said it will keep engaging with stakeholders on legacy systems that cannot interoperate with the future system.
## What this means
Peppol is an international network and set of standards for exchanging business documents. Once a business is connected, it can send e-invoices to any other Peppol participant, regardless of which provider each side uses. It is often compared to email: you pick a provider, and you can reach everyone.
The UK will use the **four-corner model**:
1. The supplier creates the invoice in its software.
2. The supplier's [Access Point](https://einvoices.uk/glossary#access-point) sends it over Peppol.
3. The buyer's Access Point receives and validates it.
4. The buyer's software imports it.
There is no central government platform in that flow. This matches the decentralised approach announced at the Autumn Budget 2025.
## Not new to the UK
Peppol is already familiar to many UK suppliers. The NHS adopted Peppol for procurement in the last decade, and many public-sector suppliers already send invoices this way. The mandate will extend the same approach to B2B invoicing.
## Will HMRC get the data?
Not at first. The government has said real-time reporting will not be introduced alongside the mandate. Some commentators expect the model could evolve later to include a "fifth corner" that reports data to HMRC, but nothing has been confirmed.
## What is still open
- The exact invoice specification and any UK-specific rules
- How Access Points and software providers will be accredited
- Treatment of B2C sales, receipts and simplified invoices
These details are expected in the implementation roadmap due at Budget 2026. Read [What is Peppol?](https://einvoices.uk/news/what-is-peppol) for a fuller explanation.
## Frequently asked questions
### Will the UK use Peppol for e-invoicing?
Yes. Peppol has been confirmed as the core interoperability network for the UK's e-invoicing mandate.
### Do I need to join Peppol myself?
Most businesses will connect through their accounting or ERP software, which works with a certified Peppol Access Point on their behalf.
---
How to cite: "Peppol confirmed as the network for UK e-invoicing", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-confirmed-uk-e-invoicing-network
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing to be mandatory for UK VAT invoices from April 2029
> The Autumn Budget 2025 confirmed that all VAT invoices between UK businesses, and to the public sector, must be e-invoices from April 2029.
- Canonical URL: https://einvoices.uk/news/uk-mandatory-e-invoicing-april-2029
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, HMRC, Budget, VAT
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [GOV.UK: Promoting electronic invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector)
## Key points
- The government confirmed at the Autumn Budget on 26 November 2025 that e-invoicing will be required for VAT invoices from April 2029.
- It covers VAT invoices between VAT-registered businesses (B2B) and invoices from businesses to public-sector bodies (B2G).
- The UK has chosen a decentralised model: businesses exchange e-invoices through service providers, and HMRC does not sit in the middle of the transaction.
- There will be no real-time reporting to HMRC alongside the mandate; VAT continues to be reported through VAT returns.
- HMRC and the Department for Business and Trade committed to publishing an implementation roadmap with milestones at Budget 2026.
---
The UK will require electronic invoicing for VAT invoices from **April 2029**, the government confirmed at the Autumn Budget on 26 November 2025.
The requirement covers VAT invoices issued between VAT-registered businesses (B2B) and invoices issued by businesses to public-sector bodies (B2G). From that date, a PDF attached to an email will no longer be enough: invoices will need to be exchanged as structured, machine-readable data.
## Why now?
The announcement follows a consultation run by HMRC and the Department for Business and Trade in 2025, which asked how the government could encourage wider adoption of e-invoicing. The government's case rests on three arguments:
- **Productivity.** Structured invoices can be checked, matched and posted automatically, cutting manual data entry for both suppliers and buyers.
- **Faster payment.** Fewer errors and disputes mean invoices are approved sooner, which helps smaller suppliers' cash flow.
- **Tax accuracy.** Better data at source should reduce mistakes in VAT returns and help close the VAT gap.
## What kind of system?
The UK has chosen a **decentralised model**. Rather than sending every invoice through a government portal, businesses will exchange e-invoices directly through service providers. HMRC does not sit in the middle of the transaction.
Crucially for finance teams, the government also said it will **not introduce real-time reporting** of invoice data to HMRC alongside the mandate. VAT will continue to be reported through VAT returns.
## What happens next
HMRC and the Department for Business and Trade committed to publishing an implementation roadmap, with milestones, at Budget 2026. That roadmap is expected to settle the technical standard, any exemptions and how the transition will work.
> **What to do now:** you do not need to buy anything yet. Start by finding out how many invoices you send and receive, which systems produce them, and what your accounting software provider plans to support.
See our [complete guide to the mandate](https://einvoices.uk/mandate) and the [timeline](https://einvoices.uk/timeline) for the latest position.
## Frequently asked questions
### When does UK e-invoicing become mandatory?
From April 2029 for VAT invoices issued between VAT-registered businesses and to public-sector bodies.
### Is there real-time reporting to HMRC?
Not at launch. The government said real-time reporting will not be introduced alongside the mandate.
---
How to cite: "E-invoicing to be mandatory for UK VAT invoices from April 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-mandatory-e-invoicing-april-2029
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Accounts payable e-invoicing in the UK: a guide for AP teams
> How UK accounts payable teams should prepare to receive Peppol e-invoices by April 2029: intake, validation, matching, approvals, responses and archiving.
- Canonical URL: https://einvoices.uk/news/accounts-payable-e-invoicing-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, Peppol, 2029 mandate, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [BIS Invoice Response 3.2](https://docs.peppol.eu/poacc/upgrade-3/profiles/63-invoiceresponse/)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
---
For accounts payable, e-invoicing means supplier invoices arrive **as data in your system, not as PDFs in an inbox**. From April 2029, VAT invoices between UK businesses must be e-invoices, exchanged over Peppol, so AP teams need a way to receive them, check them and route them to approval.
This guide covers what changes in the purchase-to-pay process and what to do about it.
## What is confirmed
- E-invoicing becomes mandatory for VAT invoices from April 2029 (government consultation response).
- The model is decentralised: no government portal sits between you and your suppliers.
- Peppol is the network. The GOV.UK Tax update 2026 summary says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- No real-time reporting to HMRC alongside the mandate.
**Still open:** the exact data standard, exemptions, phasing and the timetable for guidance. Expect detail in the roadmap at Budget 2026 on 28 October 2026.
## How a supplier invoice will reach you
1. The supplier raises the invoice in its software.
2. Its [Access Point](https://einvoices.uk/glossary#access-point) looks up your [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) and finds where to deliver it.
3. **Your** Access Point receives it.
4. Your AP or ERP software imports it.
Two consequences for AP. First, you must be registered on Peppol with an ID your suppliers can find. Second, Peppol invoices must conform to the [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) rules, and service providers typically validate documents against them, so much basic format checking happens before the invoice reaches you. That catches malformed invoices; it does not tell you whether you owe the money.
## AP process, before and after
| Step | Typical today | With e-invoicing |
|---|---|---|
| Receipt | Email inbox, post, supplier portals | One Peppol channel into your system |
| Capture | Manual keying or OCR scanning | Structured data, no keying |
| Format checks | Done by a person, if at all | Automated Peppol validation |
| Matching | Manual against PO and goods receipt | Automated two- or three-way matching on PO and line data |
| Query or rejection | Email or phone | Optional Peppol [invoice response](https://einvoices.uk/news/peppol-invoice-response-message-level-response) |
| Archive | PDF folders | Store the e-invoice data and any attachment |
## The invoice response: tell suppliers where they stand
Peppol has a standard message, the **Invoice Response**, that buyers can send back to suppliers. According to the Peppol specification (BIS Invoice Response 3.2), statuses include:
| Code | Meaning |
|---|---|
| AB | Acknowledged: received and readable |
| IP | In process |
| UQ | Under query: waiting for the supplier |
| CA | Conditionally accepted |
| RE | Rejected (final) |
| AP | Accepted: approved, payment next |
| PD | Paid (final) |
It is optional in general. But a buyer that supports it must be able to report at least AB, RE and AP, and if you send responses, the first should be provided within three working days. The specification describes its purpose as giving suppliers structured feedback so they can act early and so fewer status queries need to be handled manually.
## Questions to ask your AP or ERP provider
1. Can we receive Peppol invoices **and** credit notes directly into the AP module?
2. Which Access Point do you use, and is it a Peppol certified service provider?
3. How are invoices that fail our own business rules (for example, missing PO) handled?
4. Can we send Invoice Responses, and which status codes are supported?
5. How are attachments (timesheets, delivery notes) stored and displayed? See [invoice attachments](https://einvoices.uk/news/invoice-attachments-peppol).
6. Can we run Peppol alongside OCR and email intake during the transition?
7. How is the original e-invoice archived, and can we export it?
For ERP users, see our [ERP e-invoicing guide](https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite).
## Data you need to get right
E-invoicing makes your own data matter more, because suppliers' systems use it.
- [ ] **Your legal entity details.** Each company in a group needs correct name, address and VAT number, and its own Peppol registration. Check [VAT group](https://einvoices.uk/news/e-invoicing-vat-groups) treatment.
- [ ] **Buyer reference and PO numbers.** Decide what suppliers must quote. Peppol carries a buyer reference (BT-10) and order reference; see [buyer reference in Peppol](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
- [ ] **Supplier master data.** VAT numbers, bank details and Peppol IDs, de-duplicated. See [master data clean-up](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
- [ ] **Tolerance rules.** Price and quantity tolerances for automatic matching.
## Controls and fraud
Structured invoices reduce some fraud risks, such as doctored PDFs, but not all. Keep:
- independent verification of bank detail changes, even if the request arrives as structured data;
- checks that the sending Peppol ID belongs to the supplier on your master file;
- segregation between people who maintain suppliers and people who approve payments.
## Records
HMRC says VAT records should generally be kept for at least six years ([VAT Notice 700/21](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)). Make sure the received e-invoice is stored, not only the posted journal, and that you can retrieve it for a VAT enquiry. See [e-invoice archiving and retention](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
## Supplier communication
You cannot switch on receiving and expect every supplier to be ready the same day. Segment suppliers by volume, tell the largest first, and publish your Peppol ID on purchase orders and onboarding forms. Our [supplier onboarding guide](https://einvoices.uk/news/supplier-onboarding-e-invoicing) has a step-by-step plan.
## What to do now
- [ ] Count invoices received per month and by channel.
- [ ] Ask your AP software provider the seven questions above.
- [ ] Decide your PO and buyer reference rules.
- [ ] Start a supplier data clean-up.
- [ ] Add AP to your wider [e-invoicing project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams) and [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### What does e-invoicing change for accounts payable?
Supplier invoices arrive as structured data through a Peppol Access Point instead of as PDFs or paper. That removes manual keying and lets AP software match invoices to purchase orders and receipts automatically.
### Do we have to accept e-invoices from suppliers?
Plan to. If VAT-registered suppliers must issue VAT invoices as e-invoices from April 2029, their customers will need to be able to receive them. Detailed rules are expected in the Budget 2026 roadmap.
### Must we send an invoice response to suppliers?
Peppol's Invoice Response is optional in general. Buyers that support it must at least be able to report acknowledged, rejected and accepted statuses. No UK requirement to send responses has been announced.
### Can we still accept PDF invoices after 2029?
For in-scope VAT invoices, the mandate is designed to replace PDFs with structured e-invoices. You may still receive PDFs for out-of-scope documents, such as from overseas or non-VAT-registered suppliers, so keep a fallback channel.
---
How to cite: "Accounts payable e-invoicing in the UK: a guide for AP teams", einvoices.uk, 20 October 2026, https://einvoices.uk/news/accounts-payable-e-invoicing-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Accounts receivable e-invoicing in the UK: send and get paid
> How UK accounts receivable teams should prepare to send Peppol e-invoices by April 2029: customer data, validation, rejections, credit notes and cash flow.
- Canonical URL: https://einvoices.uk/news/accounts-receivable-e-invoicing-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, Peppol, 2029 mandate, Validation
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
- [BIS Invoice Response 3.2](https://docs.peppol.eu/poacc/upgrade-3/profiles/63-invoiceresponse/)
---
For accounts receivable, e-invoicing means **your sales invoices travel as data over Peppol, straight into your customer's system**. From April 2029, VAT invoices to UK businesses and the public sector must be e-invoices, so AR teams need clean customer data, a Peppol connection and a way to deal with invoices that are rejected.
Done well, it should also mean fewer lost invoices and fewer "we never got it" excuses.
## What is confirmed
- Mandatory e-invoicing for VAT invoices from April 2029, B2B and B2G (government consultation response).
- Decentralised exchange through service providers; no government portal.
- Peppol is the network: the GOV.UK Tax update 2026 summary says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- No real-time reporting to HMRC alongside the mandate.
**Not yet confirmed:** the exact data standard and any UK-specific rules, phasing, exemptions and how B2C invoicing is treated. Expect detail in the roadmap at Budget 2026 on 28 October 2026.
## The send process, step by step
1. **Raise** the invoice in your billing, accounting or ERP system.
2. **Convert** it to a Peppol invoice (in UBL format, under [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide)).
3. **Validate** it against the Peppol rules. Errors such as totals that do not add up or missing VAT breakdowns are caught here.
4. **Look up** the customer's [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) to find their Access Point.
5. **Deliver** through your [Access Point](https://einvoices.uk/glossary#access-point).
6. **Track** delivery and any [invoice response](https://einvoices.uk/news/peppol-invoice-response-message-level-response) the customer sends back.
Your software should do steps 2 to 5 automatically. Your team owns step 1 and the exceptions.
## Customer data you will need
The biggest AR task is master data. For each in-scope customer, hold:
| Field | Why it matters |
|---|---|
| Legal name and address | Must match the customer's records and VAT invoice rules |
| UK VAT number | Helps identify the customer and is often used as the basis of the Peppol ID |
| Peppol ID (scheme and value) | Where to send the invoice |
| Buyer reference / PO number | Some buyers reject invoices without one. See [buyer reference BT-10](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol) |
| Invoice contact | Who to chase for queries |
Verify VAT numbers with HMRC's [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number) service. To find a customer's Peppol ID, ask them or use the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk). The Peppol code list includes scheme 9932 for UK VAT numbers, but customers may use other identifiers such as a GLN (scheme 0088). See [Peppol EAS codes for the UK](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
## Make sure every invoice is a valid VAT invoice
An e-invoice is still a VAT invoice. HMRC's [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (section 16) sets out what a full VAT invoice must show, including a unique sequential number, time of supply, supplier and customer details, VAT number, description, quantity, rate and VAT totals. HMRC also says you should normally issue a VAT invoice within 30 days of the tax point. Section 17.7 says an electronic invoice "must include all the information that's required on a paper VAT invoice". See [UK VAT invoice requirements](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing).
## Exceptions: the new AR workload
Expect three new kinds of exception.
**Validation failures.** The invoice breaks a Peppol rule before it is delivered. Common causes are rounding differences, wrong [VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol) and missing fields. Learn the [common validation errors](https://einvoices.uk/news/common-peppol-validation-errors), starting with [BR-CO-15](https://einvoices.uk/news/peppol-validation-error-br-co-15).
**Delivery failures.** The customer is not on Peppol, or the ID is wrong. Decide a fallback before go-live.
**Business rejections.** The customer receives the invoice but rejects it, perhaps for a missing PO. If they send a Peppol Invoice Response with status RE (rejected) or UQ (under query), your software can route it to the right person.
Assign an owner to each type, with a target time to fix.
## Credit notes and corrections
You cannot edit an e-invoice once sent. Corrections are made with a [credit note](https://einvoices.uk/news/credit-notes-peppol-uk) referencing the original, then a new invoice if needed. Make sure your system can send Peppol credit notes, not just invoices.
## Getting paid faster
E-invoicing removes some common causes of late payment: lost emails, keying errors, invoices sent to the wrong person. The government's consultation response cites industry research reporting a 20% reduction in late payments upon adoption. Treat that as a reported figure, not a promise. What you can control:
- include the PO and buyer reference every time;
- use the customer's exact legal entity;
- track invoice responses so disputes surface early;
- monitor which customers do not acknowledge invoices.
## Questions to ask your billing or accounting provider
1. Can you send Peppol invoices **and** credit notes for UK VAT invoices?
2. Do you validate against Peppol BIS Billing 3.0 before sending, and show which rule failed?
3. Can you look up customers' Peppol IDs automatically?
4. Do you show delivery status and incoming invoice responses?
5. How are attachments, such as timesheets, sent? See [invoice attachments](https://einvoices.uk/news/invoice-attachments-peppol).
6. Can several billing systems feed one Peppol connection?
More detail: [checking your software's Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support).
## What to do now
- [ ] List in-scope customers and collect VAT numbers, Peppol IDs and PO rules.
- [ ] Check every system that raises invoices can produce structured data.
- [ ] Ask your provider the six questions above.
- [ ] Agree owners for validation, delivery and rejection exceptions.
- [ ] Pilot with one or two customers already on Peppol, such as public-sector buyers.
Then add AR to your [project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams) and [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### What does e-invoicing mean for accounts receivable?
Sales invoices are sent as structured data over Peppol instead of as emailed PDFs. AR teams need clean customer data, a Peppol connection through their software, and a process for fixing invoices that fail validation or are rejected.
### How do I find a customer's Peppol ID?
Ask the customer, or search the Peppol Directory. Many businesses will use their VAT number under scheme 9932, but you should confirm the exact ID rather than guess.
### What happens if my e-invoice fails validation?
It will not be delivered as a valid invoice. Your software or Access Point should report the rule that failed, such as a VAT total mismatch, so you can correct the data and resend.
### Will e-invoicing get me paid faster?
It can help by reducing errors and lost invoices. The government's consultation response cites industry research reporting a 20% reduction in late payments on adoption, but results depend on your customers' processes.
---
How to cite: "Accounts receivable e-invoicing in the UK: send and get paid", einvoices.uk, 20 October 2026, https://einvoices.uk/news/accounts-receivable-e-invoicing-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Do retail receipts need to be e-invoices from 2029?
> Consumer receipts are not VAT invoices, so they sit outside the mandate's core. Simplified and retailer invoices to business buyers are not yet settled.
- Canonical URL: https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Sectors, VAT, 2029 mandate, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
---
**Ordinary receipts given to consumers do not need to be e-invoices under anything announced so far.** The mandate requires all *VAT invoices* to be e-invoices from April 2029, and the government's consultation response says VAT invoices are issued for business and government transactions "though not for business to customer transactions". A till receipt for a member of the public is not a VAT invoice.
The grey area is the simplified and retailers' VAT invoices that shops, cafés and trade counters give to *business* customers. Those are VAT invoices, and their treatment has not been confirmed.
## Receipts, simplified invoices and full invoices
HMRC's guidance draws clear lines between these documents:
| Document | When it's used | Is it a VAT invoice? | Mandate position |
|---|---|---|---|
| Till receipt to a consumer | Retail sale to the public | No | **Outside the core scope**, as consumers are not given VAT invoices |
| Retailers' VAT invoice (£250 or less) | Business customer asks at the point of sale | Yes, with less detail | **Not confirmed** |
| Simplified VAT invoice (£250 or less) | Non-retailer, low-value supply, customer agrees | Yes | **Not confirmed** |
| Card voucher adapted as a VAT invoice | Retailer adds VAT number, rate and description | Yes | **Not confirmed** |
| Full or modified VAT invoice | Over £250, or customer asks for one | Yes | **In scope** if issued to a business or public body |
Key rules from the VAT guide and Notice 700/21:
- "You do not need to issue VAT invoices for supplies to customers who are not VAT registered."
- "There's no requirement to issue a VAT invoice for retail supplies to unregistered businesses. As a retailer, you may assume that no VAT invoice is required unless your customer asks for one."
- If you make retail sales, you should give a VAT invoice if asked, and "you may be liable to a financial penalty if you do not issue a VAT invoice when asked to do so by a taxable person."
- A simplified invoice is allowed when the supply is £250 or less and the customer agrees. It shows your name, address and VAT number, the tax point, a description and, for each VAT rate, the VAT-inclusive total and the rate.
- In Northern Ireland, simplified and retailers' invoices cannot be used where the customer is from an EU member state.
## Why the low-value invoices are the hard part
The mandate is framed around VAT invoices, and a retailers' invoice is one. A trade customer, such as a plumber buying fittings at a counter, still needs evidence to reclaim input VAT. So there are three plausible outcomes for the roadmap:
1. **Simplified invoices stay outside the mandate**, perhaps below a value limit, so paper or emailed receipts remain acceptable.
2. **They come in only when a business asks**, with the shop sending an e-invoice to the buyer's Peppol ID.
3. **They are fully in scope**, which would require point-of-sale systems to look up and deliver e-invoices to trade customers.
We do not know which approach the UK will take. Other countries have made different choices, and the consultation did not set out a preferred option. Treat any claim that this is "decided" with caution until the roadmap is published.
## What the consultation said about consumer sales
Two points in the response are worth noting:
- The government recognises that e-invoicing data would not be enough to pre-populate VAT returns, because "VAT invoices are not required for business to customer transactions so this significant element would be missed."
- Real-time reporting will **not** be introduced in 2029. If it comes later, it would build on e-invoicing infrastructure.
So the policy is not aimed at consumer receipts, and there is no plan to send till data to HMRC from 2029.
## Who should pay attention
- **Retailers with trade counters**, such as builders' merchants, motor factors and office suppliers.
- **Hospitality businesses** that issue VAT invoices to business diners or travellers.
- **Fuel, parking and travel** providers, whose receipts often support business expense claims.
- **Online sellers** who offer a "download VAT invoice" option to business buyers.
- **Businesses that receive many simplified invoices**, such as firms with field staff who claim expenses.
## Expense receipts: the buyer's side
Employees often bring back receipts and simplified invoices to support expense claims. If the mandate did extend to simplified invoices, those would arrive as data rather than paper. That has **not been confirmed**. For now, keep processing expense receipts as you do today, and keep the records for the normal period (see [e-invoice archiving and retention](https://einvoices.uk/news/e-invoice-archiving-retention-uk)).
## What to do now
1. **Separate your sales** into consumer sales, low-value business sales and invoiced business sales.
2. **Count how often you issue retailers' or simplified VAT invoices** and to whom.
3. **Ask your till or e-commerce provider** whether it can capture a business customer's details and connect to Peppol.
4. **Wait for the roadmap** before investing in point-of-sale changes. The open questions are real.
For the broader rules, see [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) and our [Budget 2026 roadmap preview](https://einvoices.uk/news/budget-2026-e-invoicing-roadmap-what-to-watch).
## Frequently asked questions
### Do shop receipts have to be e-invoices?
Nothing announced requires it. The mandate covers VAT invoices, and the government says VAT invoices are not typically issued for business-to-consumer sales. Receipts to consumers are not VAT invoices.
### What about simplified VAT invoices under £250?
A simplified or retailers' VAT invoice is still a VAT invoice, but the government has not said whether it will need to be an e-invoice. Expect clarity in the implementation roadmap.
### A trade customer asks for a VAT invoice at the till. What then?
Today you must provide one if a taxable person asks. Whether that invoice must be a Peppol e-invoice after April 2029 has not been confirmed.
### Will HMRC get data from my till under the mandate?
No. The government has said real-time reporting will not be introduced alongside the mandate in 2029, and the mandate does not cover consumer sales.
---
How to cite: "Do retail receipts need to be e-invoices from 2029?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Invoicing a government department: e-invoicing rules
> Central government has had to accept EN 16931 e-invoices since April 2019. The rules for suppliers, defence exceptions, devolved rules and what 2029 adds.
- Canonical URL: https://einvoices.uk/news/central-government-e-invoicing-suppliers
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Public sector, 2029 mandate, Compliance, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Procurement Act 2023, section 67: Electronic invoicing: implied term](https://www.legislation.gov.uk/ukpga/2023/54/section/67)
- [Procurement Act 2023, section 68: Implied payment terms in public contracts](https://www.legislation.gov.uk/ukpga/2023/54/section/68)
- [Procurement Act 2023, section 69: Payments compliance notices](https://www.legislation.gov.uk/ukpga/2023/54/section/69)
- [Procurement Act 2023, section 73: Implied payment terms in sub-contracts](https://www.legislation.gov.uk/ukpga/2023/54/section/73)
- [Guidance: Electronic Invoicing and Payment (HTML)](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html)
- [The Public Procurement (Electronic Invoices etc.) Regulations 2019](https://www.legislation.gov.uk/uksi/2019/624/made)
---
Government departments have been legally required to **accept** compliant e-invoices since **18 April 2019**. If you hold a public contract, you can send a structured invoice that meets EN 16931, and the department must process it if it is undisputed. From **April 2029**, the obligation flips: VAT invoices to public bodies must be sent as e-invoices.
## What the law says today
For contracts procured under the **Procurement Act 2023** (from 24 February 2025), [section 67](https://www.legislation.gov.uk/ukpga/2023/54/section/67) implies a term into every public contract:
> the contracting authority must accept and process for payment any electronic invoice … which is in the required electronic form, and not disputed by the authority.
"Required electronic form" means compliant with **BS EN 16931-1:2017** and using a syntax listed in **PD CEN/TS 16931-2:2017**: UBL or UN/CEFACT CII. A PDF attachment does not qualify. The Act defines an e-invoice as one in "a structured electronic format that allows for its automatic and electronic processing".
Older contracts carry the same obligation under regulation 113A of the Public Contracts Regulations 2015. It was inserted by the [2019 regulations](https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019) and applied to central government authorities from 18 April 2019.
### Departments can choose the channel
Section 67(6) lets an authority **require a particular system** for e-invoices. That is why some departments direct suppliers to a specific portal or shared-service provider. The Act expressly allows **defence authorities** to require a system that charges suppliers fees. No other authority is given that permission.
Cabinet Office [guidance](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html) adds that parties can agree other invoicing methods, such as paper, but suppliers "will always have the right to submit an electronic invoice".
### Defence and security
Under the Defence and Security Public Contracts Regulations 2011 (as amended in 2019), the e-invoicing term did not apply where a contract was classified secret or needed special security measures, and the UK's essential security interests could not otherwise be protected. The Security Service, the Secret Intelligence Service and GCHQ are excluded from the Procurement Act altogether (section 2(5)).
## Payment: 30 days, and published performance
[Section 68](https://www.legislation.gov.uk/ukpga/2023/54/section/68) implies payment within **30 days** of the invoice being received, or by the invoice's due date if that is later. The term does not apply while the authority considers the invoice invalid or disputes it, but it must tell you **without undue delay**.
Points worth knowing:
- **Valid invoice.** An invoice is valid if it is a compliant e-invoice, or if it sets out your name, a description of what you supplied, the sum requested and a unique identification number, and meets any other contract requirements.
- **When the clock starts.** If the contract names an e-invoicing system, receipt is when the invoice reaches that system.
- **Supply chain finance** cannot be used to cut what you are paid within the 30 days, according to the guidance.
- **Published performance.** [Section 69](https://www.legislation.gov.uk/ukpga/2023/54/section/69) requires authorities to publish **payments compliance notices** on their performance against the 30-day term. legislation.gov.uk shows it brought into force in stages during 2026.
### If you are a subcontractor
[Section 73](https://www.legislation.gov.uk/ukpga/2023/54/section/73) pushes the 30-day payment terms down the supply chain into public sub-contracts. However, the rule that a compliant e-invoice is automatically valid (s.68(8)(a)) **does not apply** to sub-contracts. A prime contractor is not bound by the Act to accept your e-invoice, although from 2029 the VAT mandate will cover B2B invoices anyway.
## Devolved governments
| Body | Regime |
|---|---|
| UK government departments (including in Scotland, Wales and NI for reserved matters) | Procurement Act 2023 |
| Welsh Government and its bodies | Procurement Act 2023, with Welsh Government guidance |
| Northern Ireland departments | Procurement Act 2023 (some provisions, such as section 69, do not apply to transferred NI authorities) |
| Scottish Government and devolved Scottish bodies | Public Contracts (Scotland) Regulations 2015, regulation 70A |
Scotland's regulation 70A has implied an e-invoice acceptance term into Scottish central government contracts since 18 April 2019.
## What April 2029 changes for government suppliers
**Confirmed:**
- VAT invoices issued to public-sector bodies must be e-invoices from April 2029.
- The government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that Peppol will be the core interoperability network for UK e-invoicing.
- The model is decentralised: invoices go supplier to buyer through service providers, with no government clearance platform and no real-time reporting at launch.
**Not yet confirmed:**
- Whether departments' existing portals will remain acceptable once the mandate starts, or will need to connect to Peppol
- Whether section 67's definition of "required electronic form" will be changed (Ministers have a power to do so under s.67(7), after consultation)
- The UK invoice specification, including whether it will be Peppol BIS Billing 3.0 as is or a UK [CIUS](https://einvoices.uk/glossary#cius)
- How government's own Peppol identifiers will be published and maintained
Expect more detail in the roadmap due at Budget 2026 on 28 October 2026.
## Practical checklist for suppliers
- [ ] Find out how each department customer receives invoices now: Peppol, portal or email.
- [ ] Put the PO number and any buyer reference exactly where requested. Missing references are the most common reason invoices stall.
- [ ] Use the contracting entity named on the contract, not a parent department.
- [ ] Keep evidence of the date each invoice was received. With a structured e-invoice, your Access Point or portal log gives you this.
- [ ] Ask your software provider about its Peppol plans. See [choosing an Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
- [ ] If you are a prime contractor, plan how you will receive e-invoices from your own subcontractors by 2029.
## What to do now
If you already have a public contract, you can use your right to e-invoice today. It shortens disputes and gives you a clear receipt date. Getting onto Peppol now also prepares you for every B2B customer in 2029. Read the [council guide](https://einvoices.uk/news/local-council-e-invoicing-suppliers), the [NHS guide](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers) and the [mandate overview](https://einvoices.uk/mandate).
## Frequently asked questions
### Can I send an e-invoice to a government department?
Yes. Since 18 April 2019, central government contracting authorities have had to accept and process undisputed e-invoices that meet the European standard EN 16931. Under the Procurement Act 2023, a department can require you to use a particular system to send them.
### Can a government department charge me to submit invoices?
The Procurement Act 2023 expressly allows only defence authorities to require an e-invoicing system that charges suppliers fees. Other authorities can require a particular system, but are not given that permission.
### How long does government have to pay my invoice?
Under section 68 of the Procurement Act 2023, within 30 days of receiving a valid, undisputed invoice, or by its due date if that is later. Authorities must also publish payments compliance notices about how they perform.
### Do government departments have to use Peppol now?
There is no general legal requirement today. Peppol is confirmed as the UK's network for the mandate that starts on April 2029, when VAT invoices to public bodies must be e-invoices.
---
How to cite: "Invoicing a government department: e-invoicing rules", einvoices.uk, 20 October 2026, https://einvoices.uk/news/central-government-e-invoicing-suppliers
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Does my accounting software support Peppol? How to check
> How to check whether your UK accounting software supports Peppol e-invoicing: where to look, the questions to ask, red flags and how to test it yourself.
- Canonical URL: https://einvoices.uk/news/check-accounting-software-peppol-support
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Software, Peppol, Small business, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Peppol Certified Service Providers - OpenPeppol](https://peppol.org/members/peppol-certified-service-providers/)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
To check whether your accounting software supports Peppol, look for **three things**: it must **send and receive** structured invoices, it must connect to a **Peppol certified Access Point**, and it must cover **UK VAT invoices**. Check the vendor's documentation, ask the questions below in writing, and, if you can, prove it with a test invoice.
Peppol is confirmed as the network for the UK's e-invoicing mandate from **April 2029**. The GOV.UK Tax update 2026 summary says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." So "does it do Peppol?" is now the key question for any finance software.
## Why the answer is often unclear
- **Words are used loosely.** "E-invoicing" in a product brochure can mean emailing a PDF. A [PDF is not an e-invoice](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice) in the Peppol sense.
- **Country matters.** Many products already support Peppol in other countries. That does not automatically mean UK invoices, UK identifiers or UK VAT rules are covered.
- **Sending is not receiving.** Some tools can send but not receive, or the reverse.
- **The UK standard is not final.** The government said it will review whether to adopt an existing standard or design a UK-specific one. Vendors may only be able to commit to dates once that is settled.
We do not list which products support Peppol, because it changes quickly and depends on edition and plan. Use the method below and get your own answer.
## Step 1: check the vendor's own documentation
Search the vendor's help centre (not a reseller's blog) for "Peppol", "e-invoicing UK" and "Access Point". Note:
- the date the page was last updated;
- whether it names the UK specifically;
- whether it covers both sending and receiving;
- which plan or edition it applies to.
Save a copy or screenshot with the date. Vendor pages change.
## Step 2: ask these questions in writing
| # | Question | What a good answer looks like |
|---|---|---|
| 1 | Can I **send** Peppol invoices and credit notes for UK VAT invoices? | Yes, with a link to UK documentation |
| 2 | Can I **receive** Peppol invoices and credit notes into my bills/AP? | Yes, landing as draft bills, not as PDFs |
| 3 | Which Peppol Access Point do you use? | A named provider, or "we are one" |
| 4 | Is it a Peppol certified service provider? | Yes; verifiable on the OpenPeppol list |
| 5 | What will my [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) be, and will you register it in the Peppol Directory? | A clear scheme, for example 9932 with your VAT number, and automatic registration |
| 6 | Which specification do you use? | [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) today, with a plan for any UK-specific rules |
| 7 | Is it included in my plan? Any per-invoice fees? | A clear price, in writing |
| 8 | Do you validate invoices before sending and show me errors? | Yes, with the rule that failed |
| 9 | Do you support Peppol [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response)? | Yes, or a stated plan |
| 10 | When will all of this be available, and can I start early? | A date, not "before 2029" |
## Step 3: verify the Access Point
OpenPeppol publishes a list of **Peppol certified service providers**, with the country of legal residence and the Peppol Authority for each. Search it for the provider your vendor names. If you cannot find it, ask the vendor to explain the relationship. Some vendors use a partner whose name differs from the software brand.
## Step 4: test it
If the feature is available, do a real test:
1. Turn on Peppol in your software and confirm your business appears in the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk).
2. Send a test invoice to a friendly customer already on Peppol, such as a public-sector body. NHS Supply Chain already requires suppliers to invoice via Peppol.
3. Ask a supplier on Peppol to send you an invoice and check it arrives in your bills.
4. Try a credit note.
5. Deliberately leave out a required field and see how the software reports the error.
## Red flags
- "We support e-invoicing" with no mention of Peppol.
- Support only for other countries, with no UK date.
- Receiving means "forward PDFs to our inbox address". That is useful for scanning, but it is not receiving Peppol invoices.
- No named Access Point.
- No written price.
- A vague roadmap with no date at all, especially once UK guidance is published.
## If your software does not support Peppol
| Situation | Options |
|---|---|
| Vendor has a dated UK plan | Wait, but recheck after the roadmap and each update |
| Vendor has no plan | Plan a migration, ideally aligned with any Making Tax Digital change |
| You use spreadsheets or Word | Move to accounting software that supports Peppol |
| You use an ERP or several systems | Consider a separate Access Point or integration provider. See our [ERP guide](https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite) and [how to choose an Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point) |
The consultation response says the government expects providers to offer products that work with existing business software, so most users should not need to understand the underlying standards. It also says several Making Tax Digital providers focused on small businesses can already provide e-invoicing.
## What to do now
- [ ] Find your vendor's UK Peppol documentation and save a dated copy.
- [ ] Email the ten questions above.
- [ ] Check the named Access Point on the OpenPeppol list.
- [ ] Note the answer and the date in your [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
- [ ] Recheck after the Budget 2026 roadmap on 28 October 2026.
## Frequently asked questions
### How do I know if my accounting software supports Peppol?
Check the vendor's help centre for UK Peppol sending and receiving, then ask the vendor in writing which Access Point it uses and whether it is a Peppol certified service provider. The best proof is a successful test invoice to and from another Peppol participant.
### Is 'e-invoicing' the same as Peppol support?
No. Some products call emailed PDF invoices 'e-invoices'. Peppol support means the software sends and receives structured invoices over the Peppol network through an Access Point.
### What if my software does not support Peppol yet?
Ask for a dated plan in writing. Many vendors are waiting for the UK specification, due to be set out from the Budget 2026 roadmap. If there is no credible plan by the time guidance is published, consider an add-on Access Point or switching software.
### Is there an official list of Peppol-ready UK accounting software?
Not at the time of writing. OpenPeppol publishes a list of certified service providers (Access Points), but that is not a list of accounting packages. The roadmap may say how software and providers will be accredited.
---
How to cite: "Does my accounting software support Peppol? How to check", einvoices.uk, 20 October 2026, https://einvoices.uk/news/check-accounting-software-peppol-support
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Common Peppol validation errors explained (with fixes)
> The Peppol BIS Billing 3.0 validation errors UK senders hit most, with the exact rule text, why each one fires and how to fix it in the UBL.
- Canonical URL: https://einvoices.uk/news/common-peppol-validation-errors
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Validation, Peppol, Technical, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [OpenPEPPOL/peppol-bis-invoice-3 validation rules](https://github.com/OpenPEPPOL/peppol-bis-invoice-3)
---
Most Peppol validation errors fall into a handful of groups: totals that don't add up (BR-CO-10 to BR-CO-16), VAT category mistakes (BR-S, BR-Z, BR-E, BR-AE, BR-O), missing references (PEPPOL-EN16931-R003), and formatting problems such as empty elements, dates and decimals. Below are the errors UK senders hit most, with the exact rule text, the cause and the fix.
We reproduced every error listed here by breaking one element of a valid UK invoice and running it through the EN 16931 UBL rules and the Peppol BIS Billing 3.0 rules (OpenPEPPOL schematron and the docs.peppol.eu rule pages, May 2026 release).
## How to read an error
A typical error looks like this:
```text
[BR-CO-14]-Invoice total VAT amount (BT-110) = Σ VAT category tax amount (BT-117).
```
- The **prefix** tells you who owns the rule. `BR-` rules come from the European standard EN 16931. `PEPPOL-EN16931-` and `PEPPOL-COMMON-` rules are Peppol's. `UBL-SR`, `UBL-CR` and `UBL-DT` are UBL syntax rules.
- **BT-** numbers are EN 16931 business terms. **BG-** numbers are groups. Map them to UBL elements using the [Peppol syntax pages](https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/tree/).
- Most rules are **fatal**. Some are warnings. A fatal error means the invoice is rejected.
Fix errors from the top down. One wrong amount often triggers three rules.
## 1. Totals and calculations
| Rule | Text | Usual cause | Fix |
|---|---|---|---|
| BR-CO-10 | "Sum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131)." | Header `LineExtensionAmount` not the sum of line amounts | Recalculate from lines |
| BR-CO-13 | "Invoice total amount without VAT (BT-109) = Σ Invoice line net amount (BT-131) - Sum of allowances on document level (BT-107) + Sum of charges on document level (BT-108)." | Header discount or charge not reflected | Recompute `TaxExclusiveAmount` |
| BR-CO-14 | "Invoice total VAT amount (BT-110) = Σ VAT category tax amount (BT-117)." | Header VAT ≠ sum of subtotals | Set header to exact sum |
| BR-CO-15 | "Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110)." | Rounding, or two VAT totals in the invoice currency | [Full guide](https://einvoices.uk/news/peppol-validation-error-br-co-15) |
| BR-CO-16 | "Amount due for payment (BT-115) = Invoice total amount with VAT (BT-112) -Paid amount (BT-113) +Rounding amount (BT-114)." | Payable rounded without `PayableRoundingAmount` | Use BT-114 for rounding |
| BR-CO-17 | "VAT category tax amount (BT-117) = VAT category taxable amount (BT-116) x (VAT category rate (BT-119) / 100), rounded to two decimals." | VAT in a breakdown off by 1.00 or more | Recalculate per category and rate |
| PEPPOL-EN16931-R120 | "Invoice line net amount MUST equal (Invoiced quantity * (Item net price/item price base quantity) + Sum of invoice line charge amount - sum of invoice line allowance amount" | Price × quantity ≠ line amount, often a hidden discount | Show discounts as line allowances |
| BR-DEC-23 | "The allowed maximum number of decimals for the Invoice line net amount (BT-131) is 2." | Line amount with 3+ decimals | Round line amounts to 2 dp |
Two things that surprise people:
- **BR-CO-17 and BR-S-09 have a tolerance; the header rules do not.** The UBL tests accept a breakdown VAT amount within 1 of base × rate, so per-line rounding usually passes. BR-CO-14 and BR-CO-15 must match to the penny.
- **Unit prices can have more than 2 decimals; line amounts cannot.** Peppol says the unit price amount "does not set restrictions on number of decimals", so £0.0125 per unit is fine. The line net amount must still have at most 2 decimals. The published R120 test lets it differ from quantity × price (plus line charges, minus line allowances) by up to 0.02.
## 2. VAT categories
| Rule | Text (shortened) | Usual cause | Fix |
|---|---|---|---|
| BR-S-05 | Standard rated line: "VAT rate (BT-152) shall be greater than zero" | Zero-rated item coded as S at 0% | Use Z |
| BR-S-10 | "Standard rate" breakdown "shall not have a VAT exemption reason code (BT-121) or VAT exemption reason text (BT-120)" | ERP fills reason on every line | Remove reason for S |
| BR-Z-01 / BR-S-01 | An invoice with a Z (or S) line must have a Z (or S) breakdown | Breakdown missing for one category | One breakdown per category and rate |
| BR-E-10 | Exempt breakdown "shall have a VAT exemption reason code (BT-121) or a VAT exemption reason text (BT-120)" | Reason missing | Add `cbc:TaxExemptionReason` |
| BR-AE-05 | Reverse charge line "VAT rate (BT-152) shall be 0 (zero)" | AE sent at 20% | Rate 0; show 20% in text |
| BR-AE-02 | Reverse charge needs seller and buyer VAT identifiers | Customer VAT number missing | Add buyer `PartyTaxScheme` |
| BR-O-02 / BR-O-11 | "Not subject to VAT" invoices cannot carry VAT numbers or other VAT categories | Outside-scope line on a normal invoice | Separate invoice |
| BR-CL-17 / BR-CL-18 | "Invoice tax categories MUST be coded using UNCL5305 code list" | Internal code like `T1`, `R` or `20` sent | Map to S, Z, E, AE, O |
The UK mapping is in [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol). Construction is covered in [reverse charge e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## 3. Parties, identifiers and references
**PEPPOL-EN16931-R003**: "A buyer reference or purchase order reference MUST be provided." This is the most common Peppol-specific error. Fill `cbc:BuyerReference` (BT-10) or `cac:OrderReference/cbc:ID` (BT-13). See [buyer reference and PO number](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
**BR-CO-09**: VAT identifiers "shall have a prefix in accordance with ISO code ISO 3166-1 alpha-2". UK VAT numbers must be sent as `GB123456789`, not `123456789`. Northern Ireland goods traders using an XI number follow the same pattern with `XI`.
**BR-62 / BR-63**: "The Seller electronic address (BT-34) shall have a Scheme identifier." (BR-63 is the same for the buyer.) `cbc:EndpointID` needs a `schemeID` such as `0088` or `9932`. See [Peppol EAS codes in the UK](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
**PEPPOL-EN16931-R010 / R020**: "Buyer electronic address MUST be provided" / "Seller electronic address MUST be provided".
**PEPPOL-COMMON-R040**: "GLN must have a valid format according to GS1 rules." A 0088 identifier with a bad check digit fails here.
## 4. Formatting and structure
**PEPPOL-EN16931-R008**: "Document MUST not contain empty elements." `` fails. Remove elements you have no value for. Don't send them empty.
**PEPPOL-EN16931-F001**: "A date MUST be formatted YYYY-MM-DD." `20/10/2026` also fails the UBL schema before schematron runs.
**PEPPOL-EN16931-R004**: "Specification identifier MUST begin with the value 'urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0' and follow the format rules for the identifier." Copy the `cbc:CustomizationID` exactly.
**PEPPOL-EN16931-R002**: "No more than one note is allowed on document level, unless both the buyer and seller are German organizations." Merge your notes into one `cbc:Note`.
**PEPPOL-EN16931-R053**: "Only one tax total with tax subtotals MUST be provided."
**PEPPOL-EN16931-R051**: "All currencyID attributes must have the same value as the invoice currency code (BT-5), except for the invoice total VAT amount in accounting currency (BT-111)." See [multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
**BR-27**: "The Item net price (BT-146) shall NOT be negative." For credits, use a negative quantity or a credit note, never a negative price. See [credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
## 5. Attachments
**PEPPOL-EN16931-CL001**: "Mime code must be according to subset of IANA code list." Only PDF, PNG, JPEG, CSV, XLSX and ODS are allowed. A Word document fails.
**UBL-DT-07**: "Binary object elements shall contain the file name attribute".
**BR-52**: "Each Additional supporting document (BG-24) shall contain a Supporting document reference (BT-122)."
Details in [attaching a PDF to a Peppol invoice](https://einvoices.uk/news/invoice-attachments-peppol).
## Schema errors come first
Before any of these rules run, the XML must be valid UBL 2.1. Elements in the wrong order are the usual cause, for example `cbc:Note` after `cbc:DocumentCurrencyCode`, or `cac:Delivery` after `cac:PaymentMeans`. These come back as schema messages ("This element is not expected"), not as BR codes. Peppol's syntax pages list the required order.
## What to do now
- Validate before you send. The [EN 16931](https://github.com/ConnectingEurope/eInvoicing-EN16931) and [Peppol](https://github.com/OpenPEPPOL/peppol-bis-invoice-3) schematron files are public, and most Access Points validate on submission.
- Log rejection codes and fix them at the source (ERP mapping or master data), not by hand.
- Build totals from the lines up, in one direction.
- Watch for the UK specification. Peppol BIS Billing 3.0 has country rules for several countries (for example Germany, the Netherlands and Sweden) but **none for the UK today**. A UK specification for the 2029 mandate could add UK rules. **None has been published.** Check the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### What do the prefixes in Peppol error codes mean?
BR- rules come from EN 16931 (BR-CO are calculations and conditions, BR-S, BR-Z, BR-E, BR-AE, BR-O are VAT category rules, BR-CL are code lists, BR-DEC are decimals). PEPPOL-EN16931- rules are Peppol's own. UBL-SR, UBL-CR and UBL-DT are UBL syntax rules.
### What is the difference between fatal and warning?
A fatal error means the invoice fails validation and should be rejected. A warning is reported but does not stop the invoice.
### Who validates a Peppol invoice?
The sender's software or Access Point should validate before sending, and the receiving side validates again. Rejected invoices may come back as a Message Level Response.
### Are there UK-specific Peppol validation rules?
Not today. Peppol BIS Billing 3.0 has country rules for some countries, but none for the UK. A UK specification for the 2029 mandate could add some, but none has been published.
---
How to cite: "Common Peppol validation errors explained (with fixes)", einvoices.uk, 20 October 2026, https://einvoices.uk/news/common-peppol-validation-errors
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoice credit notes in the UK: how they work in Peppol
> How to issue a UK credit note as a Peppol e-invoice: credit note vs negative invoice, type code 381, the original invoice reference and a valid UBL example.
- Canonical URL: https://einvoices.uk/news/credit-notes-peppol-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Peppol, Technical, Validation
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT guide (VAT Notice 700), section 18 Credits and debts – GOV.UK](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Electronic invoicing (VAT Notice 700/63) – GOV.UK](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Credit note type code (UNCL1001 subset) – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/UNCL1001-cn/)
- [UBL Credit Note syntax – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-creditnote/tree/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
---
In Peppol, a UK credit note is sent as a UBL `CreditNote` document with type code **381**. Amounts stay positive (the document type does the crediting), and it should reference the original invoice's number and issue date in `cac:BillingReference`. Peppol will also accept a "negative invoice" instead, and every Peppol receiver must be able to handle both.
Below: the two options, what HMRC requires on a credit note, a validated example, and the errors to watch for.
## Two ways to credit in Peppol
Peppol BIS Billing 3.0 supports negative totals, so there are two routes:
1. **Credit note.** `CreditNote` document, type code 381. Peppol says "the function of crediting or debiting is controlled merely by the business document type … while the representation of the amount, including its sign, is not affected." To credit £170, you send £170.
2. **Negative invoice.** `Invoice` document, type code 380, with negative quantities and amounts. Here the crediting is "controlled merely by the sign … of the amount concerned". The unit price stays positive.
Peppol is explicit about who must support what: "Invoice-generating systems may implement either option, while invoice-receiving systems have to support both of them."
For UK VAT purposes, HMRC's guidance is written around credit notes, so a 381 credit note that meets HMRC's content rules is the cleaner route for most businesses. Whether the UK mandate will prefer one approach is **not yet confirmed**.
## Credit note type codes
Peppol allows these codes for `cbc:CreditNoteTypeCode`:
| Code | Meaning |
|---|---|
| 381 | Credit note |
| 81 | Credit note related to goods or services |
| 83 | Credit note related to financial adjustments |
| 396 | Factored credit note |
| 532 | Forwarder's credit note |
Use 381 unless you have a reason not to. Putting 380 in a CreditNote fails **BR-CL-01** ("The document type code MUST be coded by the invoice and credit note related code lists of UNTDID 1001.") and **PEPPOL-EN16931-P0101** ("Credit note type code MUST be set according to the profile.").
## What HMRC requires on a credit note
Paragraph 18.2.3 of VAT Notice 700 says a valid credit note must "reflect a genuine mistake or overcharge or an agreed reduction in the value of the supply", "give value to the customer", and show clearly:
- the identifying number and date of issue
- the name, address and registration number of the supplier
- the name and address of the customer
- a description identifying the goods or services credited
- the quantity and amount for each description
- the total amount credited, excluding VAT
- the rate and amount of VAT credited (expressed in sterling)
- "the number and date of the original VAT invoice or invoices relating to the supply"
VAT Notice 700/63 adds that electronic credit notes "must contain both: the same details as the original invoice to which they refer; sufficient information to identify the original invoice".
If you and your customer agree not to adjust VAT, HMRC says the document should state "This is not a credit note for VAT". The rate of VAT on a credit note is "the one which was in force at the time of the tax point of the original supply".
## A valid UK credit note in UBL
This credits 2 hours of consultancy (£170 plus £34 VAT) from invoice INV-2026-0142. We checked the complete document against the UBL 2.1 CreditNote schema, the EN 16931 UBL rules and the Peppol BIS Billing 3.0 rules, with no errors. The parties are the same as on the original invoice and are left out here.
```xml
urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0
urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
CN-2026-0007
2026-10-27
381
Credit for 2 hours invoiced in error
GBP
FIN-OPS-77
PO-48213
INV-2026-0142
2026-10-20
34.00
170.00
34.00
S
20
VAT
170.00
170.00
204.00
204.00
1
2
170.00
Consultancy services, September 2026
S
20
VAT
85.00
```
Differences from an invoice:
- the root element and namespace are `CreditNote` / `CreditNote-2`
- `cbc:CreditNoteTypeCode` instead of `cbc:InvoiceTypeCode`
- `cac:CreditNoteLine` and `cbc:CreditedQuantity` instead of `cac:InvoiceLine` and `cbc:InvoicedQuantity`
- there is no `cbc:DueDate` at the top of a UBL credit note
- a project reference, if used, goes in `cac:AdditionalDocumentReference` with document type code 50, because `cac:ProjectReference` does not exist in a credit note
The payable amount is positive (£204). It is what the supplier owes the customer, or what is offset against future invoices.
## Referencing the original invoice
`cac:BillingReference` is BG-3, "Preceding invoice reference". Peppol's own rules do not require it on a credit note. But HMRC requires the number and date of the original invoice, so treat it as mandatory for UK use. Peppol says the issue date "shall be provided in case the preceding invoice reference is not unique". Always including it is simplest.
To credit several invoices, repeat `cac:BillingReference`. For bulk corrections across many invoices, Peppol suggests the invoicing period (BG-14) with an explanatory note instead.
If you include `cac:BillingReference` without an invoice number, two rules fire: **BR-55** ("Each Preceding Invoice reference (BG-3) shall contain a Preceding Invoice reference (BT-25).") and **UBL-SR-07** ("If there is a preceding invoice reference, the preceding invoice number shall be present").
## Common credit note errors
**Negative prices.** Sending `-85.00` fails **BR-27**: "The Item net price (BT-146) shall NOT be negative." It usually also breaks **PEPPOL-EN16931-R120** (line amount = quantity × price). Keep the price positive. Only quantities and amounts carry a sign, and on a 381 credit note they are normally positive.
**Double negatives.** Negative amounts on a 381 credit note credit a credit, which is a debit. Some systems export credit notes as negatives by habit. The totals will still validate, so this error reaches your customer's books unless you catch it.
**Totals mismatch.** BR-CO-10 to BR-CO-16 apply to credit notes just as to invoices. See [BR-CO-15 explained](https://einvoices.uk/news/peppol-validation-error-br-co-15).
**Reverse charge credits.** Use AE coding and HMRC's reverse charge credit note wording. See [reverse charge construction e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## What is not yet confirmed
The UK mandate covers VAT invoices from April 2029. How credit notes, debit notes and negative invoices will be treated, and whether a UK specification will make the original invoice reference mandatory in validation, has **not been confirmed**. Check the [timeline](https://einvoices.uk/timeline) after the roadmap at Budget 2026 on 28 October 2026.
## What to do now
- Decide whether your system will issue 381 credit notes or negative invoices, and test that it can receive both.
- Make sure every credit note carries the original invoice number and date.
- Check credit notes are exported with positive amounts and positive prices.
- AP teams: make sure your matching logic links credit notes to invoices via BG-3. See [accounts payable and e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk).
## Frequently asked questions
### Can you send a credit note as an e-invoice in Peppol?
Yes. Peppol BIS Billing 3.0 includes a UBL CreditNote document. Use type code 381, keep amounts positive and reference the original invoice.
### Should amounts on a Peppol credit note be negative?
No. On a credit note, the document type does the crediting, so amounts are normally positive. A negative invoice (type 380 with negative amounts) is the alternative.
### Does a Peppol credit note have to reference the original invoice?
Peppol validation does not require it, but HMRC says a valid VAT credit note must show the number and date of the original VAT invoice. Put both in the billing reference.
### Will credit notes be covered by the UK e-invoicing mandate?
The detail has not been confirmed. The mandate covers VAT invoices from April 2029. How credit and debit notes are treated is expected to be set out in the roadmap and standards.
---
How to cite: "E-invoice credit notes in the UK: how they work in Peppol", einvoices.uk, 20 October 2026, https://einvoices.uk/news/credit-notes-peppol-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Clearance vs decentralised e-invoicing: which has the UK chosen?
> The UK has chosen a decentralised model: invoices go business to business via providers, not through HMRC. Here's how that compares with clearance systems.
- Canonical URL: https://einvoices.uk/news/decentralised-vs-clearance-model
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, Four-corner model, Peppol, HMRC
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Electronic invoicing: promoting e-invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/electronic-invoicing-promoting-e-invoicing-across-uk-businesses-and-the-public-sector)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Peppol Continuous Transaction Controls Reference Document](https://peppol.org/wp-content/uploads/2023/02/Peppol-CTC-Reference-Document-v1.0.pdf)
---
The UK has chosen a **decentralised** e-invoicing model. Invoices will travel directly from the supplier's provider to the buyer's provider over Peppol, with no government platform in the middle. In a **clearance** model, by contrast, the tax authority (or an approved intermediary) checks and approves each invoice before the buyer gets it.
The difference matters for speed, cost, resilience and how much the tax authority sees.
## The two models in plain terms
**Clearance (centralised).** The government's consultation described it like this: "With a centralised model, e-invoices are submitted to the tax authority before being issued to the buyer." The platform may validate, number or "clear" the invoice. If it is rejected, the invoice legally does not exist.
**Decentralised.** "There is no central 'hub' through which invoices are routed, with businesses submitting their invoices through their software providers direct to their customers." This is the [four-corner model](https://einvoices.uk/news/four-corner-model-explained) used by Peppol.
There is a middle path. A decentralised network can add a reporting step, where providers also send invoice data to the tax authority. That is usually called a [five-corner model](https://einvoices.uk/news/five-corner-model-uk) or decentralised continuous transaction controls (CTC). See [Five-corner model explained](https://einvoices.uk/news/five-corner-model-uk).
## Comparison
| | Clearance / centralised | Decentralised (four-corner) | Decentralised + reporting (five-corner) |
|---|---|---|---|
| Invoice route | Through a government platform | Provider to provider | Provider to provider, plus data to the tax authority |
| Tax authority sees invoices | Yes, before the buyer | No | Yes, at or near issue |
| Who validates | Government platform | Sender's and receiver's providers | Providers, sometimes with tax authority checks |
| Government build cost | High | Low | Medium |
| Single point of failure | The central platform | None central | Reporting platform, but exchange can continue |
| Examples (per the UK consultation) | Italy, Chile | Belgium, Australia | Hungary and South Korea cited for real-time reporting |
| UK 2029 | No | **Yes** | Not at launch |
## What the UK has decided
**Confirmed:**
- **Decentralised.** The consultation response says the UK's focus on a decentralised model "has not changed following the consultation responses." Of respondents, 63% agreed this was the right focus, with most others expressing no opinion.
- **Peppol.** On 23 June 2026 the government announced that "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- **No real-time reporting at launch.** The government "will not introduce it alongside the e-invoicing mandate in 2029."
The government's reasoning was candid. The consultation said centralised models do "not always improve business efficiency" and are "costly for tax authorities to implement", so it did "not plan to explore this model in detail." The response added that many countries that chose centralised systems did so "in the context of tackling much more significant tax gaps than the UK's, which is comparatively low." For the numbers, see [E-invoicing and the VAT gap](https://einvoices.uk/news/e-invoicing-vat-gap).
It also noted that decentralised models "are also more compatible with the UK's MTD programme".
## Real examples UK businesses meet
UK businesses that trade in Europe may already know these systems:
- **Italy** routes domestic invoices through the Sistema di Interscambio (SdI), a centralised system. The Italian tax agency says the e-invoicing obligation applies to transactions between parties resident or established in Italy, so it does not usually apply to a UK supplier with no Italian establishment.
- **Belgium** made structured B2B e-invoicing compulsory between Belgian VAT-registered businesses from 1 January 2026, sent "via a decentralised network called Peppol".
- **France**, from 1 September 2026, requires invoices between French-established businesses to go through approved platforms ("plateformes agréées") together with data reporting to the tax authority, phased by company size.
For what these mean if you sell into the EU, see [UK businesses selling to EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## What decentralised means for you
- **You choose your provider.** Any certified Access Point, usually through your accounting or ERP software.
- **Validation happens in the network.** Your provider and your customer's provider check the invoice against the specification. You will still see rejections for bad data, but from providers, not HMRC.
- **HMRC does not see your invoices at launch.** VAT continues to be reported on your VAT return.
- **Quality depends on standards.** The consultation itself warned that without the right standards, a decentralised model "may lead to inconsistent data standards and validation rules across platforms". The specification and accreditation rules in the roadmap will be crucial.
## What is not yet known
- The UK invoice specification and validation rules.
- How Access Points will be accredited for UK use, and who supervises them.
- Whether, when and how invoice data might later be reported to HMRC.
## What to do now
- Ignore any claim that you must register with an HMRC invoicing portal. There is no such portal planned.
- Focus on clean master data, such as VAT numbers and customer identifiers, because providers will reject invoices that fail validation. See [Master data clean-up](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
- Check the [mandate guide](https://einvoices.uk/mandate) after the roadmap is published at Budget 2026 on 28 October 2026.
## Frequently asked questions
### Is the UK using a clearance model for e-invoicing?
No. The government has chosen a decentralised model, in which invoices are exchanged directly between businesses through their service providers over Peppol, without passing through an HMRC platform.
### What is a clearance model?
In a clearance model, invoices are sent to a government platform, or an approved third party, which validates and clears them before the buyer receives them. Italy's Sistema di Interscambio is the best-known example.
### Could the UK switch to clearance later?
Nothing suggests that. The government said it may consider real-time reporting once e-invoicing is established, building on the e-invoicing infrastructure, but it has not proposed clearance.
---
How to cite: "Clearance vs decentralised e-invoicing: which has the UK chosen?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/decentralised-vs-clearance-model
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Does a PDF invoice count as an e-invoice? Not from 2029
> HMRC accepts emailed PDFs as electronic invoices today, but the 2029 mandate needs structured, machine-readable data. A PDF alone will not be enough.
- Canonical URL: https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, Peppol, Technical, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/bis/)
## Key points
- A PDF invoice will not count as an e-invoice under the 2029 mandate. The government's consultation listed PDF and Word invoices, images, HTML invoices in an email and OCR as not e-invoices.
- Under HMRC's current rules (VAT Notice 700/63) an emailed PDF is an electronic invoice, and that remains lawful until the mandate takes effect.
- From April 2029 VAT invoices must be issued in a specified electronic format: structured data that software can read without re-keying.
- A PDF can be attached to a Peppol BIS Billing 3.0 invoice, but the structured data remains the invoice.
- Whether hybrid formats such as Factur-X or ZUGFeRD will be accepted has not been confirmed.
---
**No. Under the UK's 2029 e-invoicing mandate, a PDF invoice will not count as an e-invoice.** When the government consulted, it said invoices "in PDF or word formats, images such as JPEG, HTML invoices on a webpage or in an email, OCR or images sent via a fax machine" are not e-invoices. From April 2029, VAT invoices must be issued "in a specified electronic format", which means structured data that software can read without a person re-keying it.
The confusing part is that, under HMRC's rules today, an emailed PDF *is* an "electronic invoice". Both statements are true, because they use the words differently.
## Two meanings of "electronic invoice"
| | HMRC rules today (Notice 700/63) | 2029 mandate (as announced) |
|---|---|---|
| Definition | "the transmission and storage of invoices in an electronic format without duplicate paper documents" | "the digital exchange of invoice data directly between buyers' and suppliers' financial systems" |
| PDF accepted? | **Yes**: "The electronic format may be a structured format such as XML or an unstructured format such as PDF" | **No**: PDF is listed as not an e-invoice |
| Customer agreement needed? | Yes, your customer must agree to receive invoices electronically | The mandate will require e-invoices for VAT invoices |
| Network | Any secure method, such as email or EDI | [Peppol](https://einvoices.uk/news/what-is-peppol) is the core interoperability network |
Today's rules continue until the mandate takes effect, so emailing PDFs remains lawful in the meantime, subject to Notice 700/63's conditions.
## Why a PDF isn't enough
A PDF is designed for people to read. Software can only get data out of it by guessing, using templates or optical character recognition (OCR). That is slow and error-prone, which is the problem the mandate is meant to fix.
A structured e-invoice carries each piece of information in a labelled field: seller VAT number, invoice number, line amounts, VAT category and rate, totals. The buyer's software can validate and post it automatically. The government's case for the mandate rests on that automation: fewer errors, faster approval and, it hopes, fewer late payments.
## What a UK e-invoice will look like
The full UK specification has not been published. What is confirmed:
- The Tax update 2026 says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- Peppol's standard invoice format today is **Peppol BIS Billing 3.0**, based on the European standard [EN 16931](https://einvoices.uk/news/en-16931-explained) and usually exchanged as [UBL](https://einvoices.uk/news/ubl-vs-cii-uk) XML.
- Whether the UK will use Peppol BIS Billing 3.0 as it stands or add UK-specific rules (a [CIUS](https://einvoices.uk/glossary#cius)) is **not confirmed**. The consultation response says the government will "review the risks and benefits of adopting an existing standard or designing a UK-specific standard."
For most businesses, the format is your software's job. You raise an invoice as normal, and the software or its [Access Point](https://einvoices.uk/glossary#access-point) produces and sends the structured version.
## Can a PDF travel with the e-invoice?
Yes. Peppol BIS Billing 3.0 lets you attach supporting documents, and the permitted file types include **application/pdf**, as well as images and spreadsheets. Receivers on Peppol must accept attachments of those types. Many businesses attach a PDF rendering of the invoice, a timesheet or a delivery note.
The structured data is still the invoice. If the PDF and the data disagree, the data is what the buyer's system will process. The data is also what you should archive (see [e-invoice archiving and retention](https://einvoices.uk/news/e-invoice-archiving-retention-uk)).
## What about "hybrid" PDFs?
Some countries accept hybrid formats such as Factur-X or ZUGFeRD, which embed XML inside a PDF/A file. The UK has not said whether such formats will satisfy the mandate. Some consultation respondents asked for "low-barrier solutions such as PDF/A formats … and email-based invoicing", but the government's response focused on Peppol and interoperable standards. Treat hybrid PDFs as **unconfirmed** for UK compliance.
## Common myths
- **"Our accounting software emails PDFs, so we're already doing e-invoicing."** Not in the mandate's sense. Ask your provider about Peppol.
- **"A PDF with a digital signature counts."** A signature proves who sent it. It doesn't make the content structured.
- **"Our customer scans our PDFs with OCR, so that's fine."** The government listed OCR as not e-invoicing.
- **"EDI is the same as PDF."** No. EDI is structured, and HMRC already treats it as electronic invoicing. How existing EDI links will fit with Peppol under the mandate has not been confirmed, and the government says it will keep engaging on legacy systems.
## What to do now
1. **Check how you send invoices today:** paper, PDF, portal, EDI or Peppol.
2. **Ask your software provider** whether it can send and receive Peppol invoices, and when.
3. **Keep sending PDFs for now** if that suits you. Nothing changes before the mandate starts.
4. **Plan the switch** once the roadmap sets milestones at Budget 2026 on 28 October 2026.
Read more: [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate), our glossary entry on [e-invoices](https://einvoices.uk/glossary#e-invoice) and the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Is a PDF an e-invoice?
Not for the 2029 mandate. The government's consultation said PDF and Word invoices, images, and HTML invoices in an email are not e-invoices. Today, though, HMRC's Notice 700/63 accepts PDF as an electronic invoice format.
### Can I still email PDF invoices after April 2029?
Not as your VAT invoice to business or public-sector customers, if the rules follow what has been announced. You may still send a PDF as a readable copy or for customers outside the mandate.
### Can I attach a PDF to a Peppol e-invoice?
Yes. Peppol BIS Billing 3.0 allows supporting documents, including PDFs, to be attached. The structured data remains the invoice.
### Will hybrid PDF formats like Factur-X or ZUGFeRD be accepted?
Not confirmed. The UK has chosen Peppol as its core network and has not said whether hybrid PDF-with-XML formats will be allowed.
---
How to cite: "Does a PDF invoice count as an e-invoice? Not from 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Reverse charge construction e-invoices in Peppol (AE code)
> How to issue a UK construction domestic reverse charge invoice in Peppol: the AE code, HMRC's wording rules, a valid UBL example and the BR-AE errors to avoid.
- Canonical URL: https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Sectors, Validation, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Check when you must use the VAT domestic reverse charge for building and construction services – GOV.UK](https://www.gov.uk/guidance/vat-domestic-reverse-charge-for-building-and-construction-services)
- [How to use the VAT domestic reverse charge if you supply building and construction services – GOV.UK](https://www.gov.uk/guidance/how-to-use-the-vat-reverse-charge-if-you-supply-building-and-construction-services)
- [VAT domestic reverse charge technical guide – GOV.UK](https://www.gov.uk/guidance/vat-reverse-charge-technical-guide)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [VATEX code list – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/vatex/)
---
To send a UK construction reverse charge invoice over Peppol, code the lines and the VAT breakdown as **AE** with a VAT rate of 0 and a VAT amount of 0, give the exemption reason "Reverse charge" (or code `VATEX-EU-AE`), and include both your VAT number and your customer's. Because the European standard will not let you put 20% in the rate field, HMRC's required wording and the VAT due go in the exemption reason text.
This guide covers when the reverse charge applies, what HMRC says the invoice must show, a validated UBL example, and the errors that fire most often.
## When the reverse charge applies
HMRC says the VAT domestic reverse charge "must be used for most supplies of building and construction services". As a supplier you must use it if you are VAT registered in the UK and:
- your customer is registered for VAT in the UK
- payment is reported within the Construction Industry Scheme (CIS)
- the services are standard or reduced rated
- you are not an employment business supplying staff or workers
- your customer has not given written confirmation that they are an end user or intermediary supplier
If any of those fail, normal VAT rules apply and the invoice uses code `S` instead. HMRC also has a "5% disregard" for supplies where the reverse charge element is 5% or less of the value, which both parties must agree from the start of the contract. All of these are VAT decisions, not e-invoicing ones. Check them against [HMRC's technical guide](https://www.gov.uk/guidance/vat-reverse-charge-technical-guide).
## What HMRC says the invoice must show
From HMRC's technical guide, a supplier of reverse charge services must:
- show all the information required on a VAT invoice
- "make a note on the invoice to make it clear that the domestic reverse charge applies and that the customer is required to account for the VAT"
- "clearly state how much VAT is due under the reverse charge, or if this amount cannot be shown, state the rate of VAT, but do not include the VAT in the amount charged to the customer"
The guide says the invoice must include the reference "reverse charge", and gives examples of acceptable wording: "VAT Act 1994 Section 55A applies", "S55A VATA 94 applies" and "Customer to pay the VAT to HMRC".
## What EN 16931 requires for AE
These are the Peppol BIS Billing 3.0 rules (EN 16931 bound to UBL) for reverse charge. All are fatal.
| Rule | What it says (shortened) |
|---|---|
| BR-AE-01 | An invoice with an AE line, allowance or charge "shall contain in the VAT Breakdown (BG-23) exactly one VAT category code (BT-118) equal with 'VAT reverse charge'" |
| BR-AE-02 | An AE line needs the Seller VAT identifier (BT-31), tax registration (BT-32) and/or tax representative VAT identifier (BT-63) "and the Buyer VAT identifier (BT-48) and/or the Buyer legal registration identifier (BT-47)" |
| BR-AE-05 | "the Invoiced item VAT rate (BT-152) shall be 0 (zero)" |
| BR-AE-08 | The AE taxable amount must equal the AE line amounts minus AE allowances plus AE charges |
| BR-AE-09 | "The VAT category tax amount (BT-117) … shall be 0 (zero)" |
| BR-AE-10 | The AE breakdown "shall have a VAT exemption reason code (BT-121), meaning 'Reverse charge' or the VAT exemption reason text (BT-120) 'Reverse charge'" |
Peppol adds **PEPPOL-EN16931-P0107**: "Tax Category AE MUST be used when exemption reason code is VATEX-EU-AE".
The tension is clear. HMRC wants the VAT amount or rate visible. EN 16931 makes both the rate and the VAT amount zero. The workable answer today is to keep the structured fields at zero and carry the HMRC wording, rate and amount as text.
## A valid UBL example
This invoice is for £4,000 of plastering by a VAT-registered subcontractor to a VAT- and CIS-registered contractor. The customer accounts for £800 of VAT (20%). We checked the full document against the UBL 2.1 schema, the EN 16931 UBL rules and the Peppol BIS Billing 3.0 rules, and it passed with no errors. Parties and payment details are left out here for space.
```xml
Reverse charge: VAT Act 1994 Section 55A applies. Customer to account to HMRC for VAT of GBP 800.00 (20%).
GBP
0.00
4000.00
0.00
AE
0
VATEX-EU-AE
Reverse charge: S55A VATA 94 applies. Customer to account to HMRC for VAT of GBP 800.00 (20%)
VAT
4000.00
4000.00
4000.00
4000.00
1
1
4000.00
Plastering works, Unit 4, Phase 2
AE
0
VAT
4000.00
```
Points to note:
- The amount payable is £4,000. The VAT is not added, as HMRC requires.
- Peppol allows only one document-level `cbc:Note` (PEPPOL-EN16931-R002), so put all your note text in one.
- The exemption reason text is free text. The validators only check that a code or text is present, so the HMRC wording fits there.
## The errors you will see
**BR-AE-05.** You sent `AE` with `20` on the line. Set it to 0 and move the 20% into text.
**BR-AE-02.** The buyer party has no VAT identifier. Add the contractor's VAT number with its `GB` prefix in `cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID`. A missing `GB` prefix triggers BR-CO-09 instead.
**BR-AE-10.** The AE breakdown has no reason. Add `VATEX-EU-AE`, the text, or both.
**BR-AE-09, BR-CO-17 or BR-CO-14.** Your system calculated 20% VAT and put it in the totals. In our tests, £800 in the AE breakdown triggered BR-AE-09 and BR-CO-17. £800 only in the header `cac:TaxTotal/cbc:TaxAmount` triggered BR-CO-14. For AE, both must be 0.00, and the VAT-inclusive total equals the net total.
**BR-AE-01.** The invoice has AE lines but no AE breakdown, or two of them. There must be exactly one.
## Mixed invoices and credit notes
An invoice can carry both AE and S lines. For example, where the 5% disregard does not apply and some items fall outside the reverse charge. Each code then gets its own breakdown. Whether that split is right for VAT is an HMRC question, not a validation one.
For credit notes, HMRC's guide says to note on the credit note "that the reverse charge applies" and show "the reduction in the VAT the customer has to pay to HMRC", for example "reverse charge: customer to account for the output tax adjustment of £X to HMRC". In a Peppol credit note, use the same AE coding and put that wording in the exemption reason text. See [credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
## CIS deductions are separate
The reverse charge is VAT. CIS deductions are income tax withheld by the contractor. Peppol BIS Billing 3.0 has no dedicated CIS deduction field, and how CIS will be shown on UK e-invoices is **not yet confirmed**. Read [e-invoicing in construction and CIS](https://einvoices.uk/news/e-invoicing-construction-cis).
## What the mandate may change
Everything above follows Peppol BIS Billing 3.0 as it stands. The UK data standard has not been published, and the government has said it is weighing an existing standard against a UK-specific one. A UK specification could add a structured way to show reverse charge VAT. Until then, treat the approach above as current Peppol practice, **not confirmed UK mandate rules**.
## What to do now
- Check your software can produce AE lines with rate 0 and a VAT amount in text.
- Make sure contractor records hold a valid UK VAT number.
- Keep end user and intermediary notifications on file. They decide whether you use AE or S.
- Test a reverse charge invoice and a reverse charge credit note through your [Access Point](https://einvoices.uk/glossary#access-point) before you need them.
## Frequently asked questions
### What VAT category code is used for the construction reverse charge in Peppol?
AE (VAT reverse charge), with a VAT rate of 0, a VAT amount of 0 and the exemption reason code VATEX-EU-AE or the text "Reverse charge".
### How do I show the 20% VAT the customer must account for?
EN 16931 forces the rate on an AE line to zero, so put HMRC's required wording and the VAT amount (or rate) in the VAT exemption reason text and, if you like, the invoice note.
### Why does my reverse charge invoice fail BR-AE-02?
BR-AE-02 needs the seller's VAT identifier and the buyer's VAT identifier (or legal registration identifier). Add the contractor's GB VAT number to the buyer party.
### Will the UK mandate have its own reverse charge code?
Not known yet. The UK data standard has not been published, so any UK-specific reverse charge treatment is not yet confirmed.
---
How to cite: "Reverse charge construction e-invoices in Peppol (AE code)", einvoices.uk, 20 October 2026, https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How long to keep e-invoices: HMRC retention and archiving rules
> HMRC says keep VAT invoices, including e-invoices, for 6 years. Here's what to store, where you can store it, and how other tax rules can make it longer.
- Canonical URL: https://einvoices.uk/news/e-invoice-archiving-retention-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Compliance, VAT, Finance teams, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Running a limited company: Company and accounting records](https://www.gov.uk/running-a-limited-company/company-and-accounting-records)
- [Business records if you're self-employed: How long to keep your records](https://www.gov.uk/self-employed-records/how-long-to-keep-your-records)
- [Value Added Tax Act 1994, section 69](https://www.legislation.gov.uk/ukpga/1994/23/section/69)
---
**HMRC says you must normally keep copies of all the invoices you issue and receive for 6 years, and that applies to e-invoices in exactly the same way as paper.** That is the rule in HMRC's electronic invoicing notice (VAT Notice 700/63), and it is not expected to change because of the 2029 mandate. What does change is *what* you store: a structured e-invoice is data, and HMRC expects you to be able to reproduce that data as it was.
## The core rules
From HMRC's record-keeping and electronic invoicing notices:
- **Retention period:** "Generally, you must keep all your business records for VAT purposes for at least 6 years." For invoices: "You must normally keep copies of all the invoices you issue and all the invoices you receive for 6 years."
- **Same rules, any format:** "The same rules apply to storage of electronic invoices as to paper invoices."
- **Shorter periods by agreement only:** if 6 years causes serious storage problems or undue expense, contact HMRC; it "may be able to allow you to keep some of the records for a shorter period."
- **Penalty:** failing to preserve required records can lead to a **£500** penalty under section 69 of the VAT Act 1994.
## What HMRC expects you to store
Notice 700/63 section 5 sets the standard for electronic storage. You must:
1. **Guarantee authenticity and integrity** of the invoice content throughout the storage period, by electronic or procedural means.
2. **Store all the data related to your invoices**, including the evidence that shows authenticity and integrity were ensured.
3. **Be able to recreate the invoice data** as at the time it was originally sent or received, and present it in a readable format.
4. **Keep history files**, so that you can find details from any point in the past if HMRC asks.
You must also be able to give HMRC access. It may ask for access to systems that produce or receive invoices, documentation of your file structures and controls, and copies of data.
## A practical e-invoice archive checklist
| Store this | Why |
|---|---|
| The original e-invoice file (for example the UBL XML) as sent or received | It is the invoice. You need to recreate the data "as at the time of its original transmission or receipt". |
| Any attachments embedded in the e-invoice | They form part of the document you exchanged. |
| A readable rendering, or the ability to produce one | HMRC requires a "readable format". |
| Transmission evidence such as timestamps, sender and receiver IDs and delivery status | Supports authenticity and integrity. |
| Validation results and any rejection or response messages | Shows what happened to the invoice. |
| Credit notes and corrections linked to the original | Credit notes must identify the original invoice. |
| Self-billing agreements, if relevant | HMRC can ask to see them. |
| Your ERP posting and audit trail | Notice 700/63 requires an audit trail between the e-invoicing system and your accounting systems. |
**Do not rely only on a PDF.** A PDF generated from an e-invoice is a useful view, but if the structured data is the legal invoice, the PDF is not a full substitute. Keep both if you can.
## Where you can store e-invoices
HMRC's notice allows storage outside the UK:
- **In an EU member state:** HMRC recommends maintaining online access, and you must be able to produce records in a readable form, within a reasonable time, at a mutually agreed place.
- **Elsewhere:** allowed if the country respects UK data protection principles and you can produce records in the same way. Again, HMRC recommends online access.
Cloud storage is therefore possible, but check your provider's data location and export options.
## Who is responsible if you outsource?
You are. HMRC's notice says that if you outsource issuing e-invoices to a third party, "all the legal obligations with regard to the contents, storage and production of the invoices issued remain with you." The same applies to outsourced processing and storage of purchase invoices.
Under the UK's [Peppol](https://einvoices.uk/news/what-is-peppol) model, your [Access Point](https://einvoices.uk/glossary#access-point) delivers invoices but is not necessarily your archive. Check:
- how long your provider keeps sent and received documents
- whether you can bulk-export the original files
- what happens to your archive if you change provider
## When 6 years isn't long enough
VAT is not the only rule. Invoices are also accounting records for other taxes:
- **Limited companies:** GOV.UK says records must be kept for 6 years from the end of the last company financial year they relate to, or longer in some cases. Examples include transactions spanning more than one accounting period, assets expected to last more than 6 years, a late Company Tax Return, or an HMRC compliance check that has started.
- **Sole traders:** at least 5 years after the 31 January submission deadline of the relevant tax year. That can run past 6 years from the invoice date, so check which rule ends later.
In practice, many businesses set a single retention period that meets the longest rule that applies to them.
## Scanned and converted invoices
If you scan paper invoices and keep them electronically, HMRC accepts that "as long as you can meet the requirements … for ensuring authenticity, integrity and legibility". Under MTD, if your software scans an invoice and keeps an image with all the VAT details, you need not keep the paper original unless you need it for another purpose.
## What the 2029 mandate may add
The government has not announced new retention rules for the mandate. Points to watch in the roadmap and later guidance:
- whether HMRC will specify formats for stored e-invoices
- whether access points will have any archiving duties
- how long transmission and validation evidence must be kept
## What to do now
1. **Confirm your retention policy** covers at least 6 years for VAT and any longer periods for other taxes.
2. **Ask your software or Access Point provider** how it stores the original e-invoice files and how you can export them.
3. **Test retrieval.** Can you produce an invoice from five years ago, in a readable form, quickly?
4. **Document your controls** for authenticity and integrity.
See also [does a PDF invoice count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice) and [e-invoicing penalties](https://einvoices.uk/news/e-invoicing-penalties-uk).
## Frequently asked questions
### How long do I need to keep e-invoices for HMRC?
Normally 6 years. HMRC says the same storage rules apply to electronic and paper invoices, and you must keep copies of all invoices you issue and receive for 6 years.
### Do I need to keep the XML file or is a PDF copy enough?
HMRC requires you to be able to recreate the invoice data as it was when sent or received and present it in a readable format. For a structured e-invoice, keeping the original data file is the safest way to do that.
### Can I store e-invoices in the cloud outside the UK?
Yes, subject to conditions. HMRC says you must be able to produce the records in a readable form within a reasonable time, data protection principles must be respected, and it recommends keeping online access.
### Does my Peppol Access Point keep my invoices for me?
Don't assume so. Record-keeping obligations stay with you even if you outsource invoicing. Check your provider's contract for how long it stores documents.
---
How to cite: "How long to keep e-invoices: HMRC retention and archiving rules", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoice-archiving-retention-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK Peppol invoice XML example (UBL, validated)
> A complete UK Peppol BIS Billing 3.0 invoice in UBL XML, with GBP, 20% and zero-rated lines and a delivery charge, validated against EN 16931 and Peppol rules.
- Canonical URL: https://einvoices.uk/news/e-invoice-xml-example-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Technical, Peppol, Validation, Software
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [UBL Invoice syntax – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/tree/)
- [OpenPEPPOL/peppol-bis-invoice-3 validation rules and examples](https://github.com/OpenPEPPOL/peppol-bis-invoice-3)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [Electronic Address Scheme (EAS) code list – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/)
- [VAT guide (VAT Notice 700) – GOV.UK](https://www.gov.uk/guidance/vat-guide-notice-700)
---
Below is a complete, valid UK e-invoice in Peppol BIS Billing 3.0 (UBL 2.1) format. It is a GBP invoice from one UK VAT-registered company to another, with a 20% line, a zero-rated line and a delivery charge. We validated it against the UBL 2.1 schema, the EN 16931 UBL rules (version 1.3.17 from the European Commission's GitHub) and the Peppol BIS Billing 3.0 rules, with no errors and no warnings. Copy it, then read the walkthrough to see what each part does.
All names, numbers and identifiers are fictitious. HMRC has **not yet published** a UK e-invoice specification, so this shows Peppol BIS Billing 3.0 with UK data, not a confirmed UK mandate format.
## The scenario
| | |
|---|---|
| Seller | Example Supplies Ltd, Leeds, VAT GB123456789 |
| Buyer | Sample Buyer Ltd, Bristol, VAT GB987654321 |
| Line 1 | 10 hours consultancy at £85.00, standard rated 20% = £850.00 |
| Line 2 | 5 printed books at £12.00, zero-rated = £60.00 |
| Charge | Delivery £15.00, standard rated 20% |
| VAT | 20% on £865.00 = £173.00; 0% on £60.00 |
| Total | £925.00 net + £173.00 VAT = **£1,098.00** |
## The full invoice
```xml
urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0
urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
INV-2026-0142
2026-10-20
2026-11-19
380
GBP
FIN-OPS-77
2026-09-01
2026-09-30
PO-48213
5099999000011
Example Supplies
1 High Street
Leeds
LS1 1AA
GB
GB123456789
VAT
Example Supplies Ltd
01234567
Accounts team
accounts@example.co.uk
5099999000028
20 Market Square
Bristol
BS1 2BB
GB
GB987654321
VAT
Sample Buyer Ltd
2026-09-30
30
INV-2026-0142
GB29NWBK60161331926819
Example Supplies Ltd
Payment within 30 days of invoice date
true
DL
Delivery
15.00
S
20
VAT
173.00
865.00
173.00
S
20
VAT
60.00
0.00
Z
0
VAT
910.00
925.00
1098.00
15.00
1098.00
1
10
850.00
1
Consultancy services, September 2026
S
20
VAT
85.00
2
5
60.00
2
Printed books
Z
0
VAT
12.00
```
## Walkthrough
### Header: identifiers and dates
- `cbc:CustomizationID` and `cbc:ProfileID` are fixed Peppol values for BIS Billing 3.0. A wrong CustomizationID triggers PEPPOL-EN16931-R004.
- `cbc:ID` is the invoice number (BT-1). HMRC requires "a sequential number based on one or more series which uniquely identifies the document".
- `cbc:IssueDate` (BT-2) and `cbc:DueDate` (BT-9) must be `YYYY-MM-DD`.
- `cbc:InvoiceTypeCode` 380 is a commercial invoice. Credit notes use a separate `CreditNote` document. See [credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
- `cbc:DocumentCurrencyCode` GBP. For other currencies, see [multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
### References
`cbc:BuyerReference` (BT-10) and `cac:OrderReference/cbc:ID` (BT-13). Peppol needs at least one (rule R003). See [buyer reference and PO number](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol). `cac:InvoicePeriod` shows the service period. `cac:Delivery/cbc:ActualDeliveryDate` is one way to show the time of supply. You could use `cbc:TaxPointDate` (BT-7) instead.
### Parties
- `cbc:EndpointID` is the Peppol electronic address, with a `schemeID` from the EAS list. We used `0088` (GS1 GLN) with fictitious numbers that pass the GLN check-digit rule. UK businesses may also use `9932` (UK VAT number). See [Peppol EAS codes for the UK](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
- `cac:PartyName/cbc:Name` is the trading name (BT-28). `cac:PartyLegalEntity/cbc:RegistrationName` is the legal name (BT-27). HMRC requires the name under which you are registered for VAT.
- `cac:PartyTaxScheme/cbc:CompanyID` is the VAT number with the `GB` prefix (BR-CO-09).
- `cac:PartyLegalEntity/cbc:CompanyID` here holds a Companies House-style number without a scheme ID. That is optional.
- Postal addresses need a country code (BR-09, BR-11).
### Payment
`cbc:PaymentMeansCode` 30 is credit transfer. Rule BR-61 then requires an account identifier (`cac:PayeeFinancialAccount/cbc:ID`). We used the standard example IBAN format. `cbc:PaymentID` is the remittance reference you want quoted.
### Document-level charge
`cac:AllowanceCharge` with `cbc:ChargeIndicator` true is a charge. `false` would be a discount. Reason code `DL` is "Delivery" in the UNCL 7161 list. Each charge needs its own VAT category and rate.
### VAT breakdown
One `cac:TaxTotal` with one `cac:TaxSubtotal` per VAT category and rate:
- `S` at 20%: taxable £850.00 + £15.00 = £865.00, VAT £173.00
- `Z` at 0%: taxable £60.00, VAT £0.00 (no exemption reason allowed)
Category codes are explained in [UK VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol).
### Totals
| Element | Value | Rule |
|---|---|---|
| LineExtensionAmount | 910.00 = 850.00 + 60.00 | BR-CO-10 |
| ChargeTotalAmount | 15.00 | BR-CO-12 |
| TaxExclusiveAmount | 925.00 = 910.00 + 15.00 | BR-CO-13 |
| TaxTotal/TaxAmount | 173.00 = 173.00 + 0.00 | BR-CO-14 |
| TaxInclusiveAmount | 1098.00 = 925.00 + 173.00 | BR-CO-15 |
| PayableAmount | 1098.00 | BR-CO-16 |
Element order inside `cac:LegalMonetaryTotal` is fixed by the UBL schema: `LineExtensionAmount`, `TaxExclusiveAmount`, `TaxInclusiveAmount`, then `AllowanceTotalAmount`, `ChargeTotalAmount`, `PrepaidAmount`, `PayableRoundingAmount`, `PayableAmount`.
### Lines
Each `cac:InvoiceLine` has an ID, quantity with a UN/ECE unit code (`HUR` hour, `C62` one), a net amount equal to quantity × price (PEPPOL-EN16931-R120), an item name, a VAT category, and a price. `cac:OrderLineReference` links each line to the PO line.
## How to validate it yourself
1. **Schema:** validate against `UBL-Invoice-2.1.xsd` from the OASIS UBL 2.1 package.
2. **EN 16931 rules:** run the UBL XSLT from [ConnectingEurope/eInvoicing-EN16931](https://github.com/ConnectingEurope/eInvoicing-EN16931) with an XSLT 2.0 processor such as Saxon.
3. **Peppol rules:** compile `PEPPOL-EN16931-UBL.sch` from [OpenPEPPOL/peppol-bis-invoice-3](https://github.com/OpenPEPPOL/peppol-bis-invoice-3) and run it the same way.
Look for `svrl:failed-assert` in the output. None means pass. Most Access Points run the same checks when you submit.
## Variations
- Reverse charge construction invoice: [AE code example](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice)
- PDF timesheet attached: [attachments](https://einvoices.uk/news/invoice-attachments-peppol)
- Errors and fixes: [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors)
## What may change
This example follows Peppol BIS Billing 3.0 as published in May 2026. Peppol is confirmed as the UK's network. The UK data standard is due to be set out after the roadmap at Budget 2026 and may add UK-specific requirements. **Nothing UK-specific is confirmed yet.** Check the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Is there an official UK e-invoice XML example?
Not yet. HMRC has not published a UK e-invoice specification or examples. Peppol publishes generic examples on GitHub. The example on this page follows Peppol BIS Billing 3.0 with UK data.
### Which XML format do UK Peppol invoices use?
Peppol BIS Billing 3.0 uses UBL 2.1. The Invoice root element is in the namespace urn:oasis:names:specification:ubl:schema:xsd:Invoice-2.
### What is the minimum a Peppol invoice needs?
Among other things: the CustomizationID and ProfileID, invoice number, issue date, type code, currency, a buyer reference or PO number, seller and buyer with electronic addresses and postal addresses, a VAT breakdown, totals, and at least one line.
### How was this example validated?
Against the UBL 2.1 Invoice schema, the EN 16931 UBL Schematron (version 1.3.17) and the Peppol BIS Billing 3.0 Schematron. All passed with no errors or warnings.
---
How to cite: "UK Peppol invoice XML example (UBL, validated)", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoice-xml-example-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Farmers and e-invoicing: flat rate scheme, self-billing and 2029
> How the 2029 e-invoicing mandate meets farming: flat rate scheme invoices, zero-rated produce, and self-billing by processors and auctioneers.
- Canonical URL: https://einvoices.uk/news/e-invoicing-agriculture-farmers
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, VAT, 2029 mandate, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Agricultural Flat Rate Scheme (VAT Notice 700/46)](https://www.gov.uk/guidance/agricultural-flat-rate-scheme-notice-70046)
- [Self-billing (VAT Notice 700/62)](https://www.gov.uk/guidance/self-billing-notice-70062)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Peppol BIS Self Billing](https://docs.peppol.eu/poacc/self-billing/3.0/bis-sb/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
Farming has some of the oddest invoicing rules in UK VAT, and the 2029 mandate does not yet say how it will deal with them. VAT-registered farms selling standard-rated goods or services to VAT-registered businesses can expect those VAT invoices to need to be e-invoices from **April 2029**. **Flat rate farmers** are not VAT-registered, and much farm produce is **zero-rated**, and those positions are **not yet confirmed**. Here is what applies today and what to watch.
## Flat rate farmers: not VAT, but invoiced like VAT
The **Agricultural Flat Rate Scheme** ([VAT Notice 700/46](https://www.gov.uk/guidance/agricultural-flat-rate-scheme-notice-70046)) is an alternative to VAT registration. A certified flat rate farmer:
- does **not** register for VAT, submit VAT returns or reclaim input tax
- can add a **flat rate addition (FRA) of 4%** to sales of qualifying goods, or goods and services, to **VAT-registered** customers, even where the sale would be zero-rated
- keeps the FRA, which compensates for input tax that cannot be reclaimed
HMRC is explicit that "the flat rate addition is not VAT". But the customer treats it **as input tax** and reclaims it on its VAT return. To do that, it needs an invoice.
### What an FRA invoice must show
| Required detail | Note |
|---|---|
| Identifying invoice number | |
| Flat rate certificate number | Instead of a VAT number |
| Farmer's name and address | |
| Customer's name and address | Must be VAT-registered |
| Date of sale | |
| Description of goods or services | |
| Price excluding the FRA | |
| Rate and amount of the FRA | 4% |
The FRA must not be charged on sales of machinery, of land, or of repairs and maintenance to other farmers' buildings. It must not be charged to customers who are not VAT-registered, or to other flat rate farmers.
### Why FRA invoices are hard to fit into Peppol
EN 16931, the standard behind Peppol BIS Billing 3.0, has no concept of a flat rate addition. Its rules for standard-rated and zero-rated lines require a **seller VAT identifier** (BR-S-02, BR-Z-02), which a flat rate farmer does not have. An FRA could be shown as a charge or with a "not subject to VAT" code, but then the buyer's software would not treat it as reclaimable input tax.
**Not yet confirmed:**
- whether FRA invoices fall within the mandate at all
- if they do, whether the UK specification will add a code or field for the FRA
- whether customers will need an e-invoice to reclaim the FRA
Customers reclaim FRA as input tax, so this matters to buyers as much as to farmers. The scheme has entry and exit limits: you can join with farming turnover below **£150,000**, and must leave above **£230,000**. That means many FRA users are small businesses.
## VAT-registered farms: zero-rated produce
Most food and animal feed is zero-rated. [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (16.2.1) says VAT invoices are needed for standard- and reduced-rated supplies to VAT-registered customers, and "you do not, therefore, have to issue VAT invoices for zero-rated supplies".
The headline policy is that all VAT invoices must be e-invoices. If you do not have to issue a VAT invoice today, it is **not yet confirmed** whether you will need an e-invoice for that sale in 2029. In practice, many farms issue full invoices for zero-rated sales anyway, because buyers want them. Treat those as likely to move to e-invoicing. Standard-rated farm income will need e-invoices like any other business: contracting, machinery hire, diversified activities and many services.
## Self-billing: the norm in parts of farming
In milk, livestock, grain and fresh produce, the **buyer often prepares the invoice**. A dairy processor or co-op calculates the price from volume and quality, then issues the invoice with payment. That is **self-billing**, governed by [VAT Notice 700/62](https://www.gov.uk/guidance/self-billing-notice-70062):
- There must be a **written agreement** with a start and end date, and it should be reviewed (HMRC advises every 12 months).
- Each invoice is marked **"SELF-BILLING"**. HMRC advises adding "The VAT shown is your output tax due to HMRC".
- The self-biller must not self-bill a supplier who is not VAT-registered under a VAT self-billing arrangement.
Notice 700/46 also lets a customer prepare an FRA invoice for a flat rate farmer, if the self-billing conditions are met. The scheme sets other rules for **farmers' groups and co-operatives**, where the group pays the FRA out to certified members, and for **auctioneers**, depending on whether they act in their own name under the Auctioneers' or Margin Scheme.
### Self-billing and Peppol
Peppol publishes a **[BIS Self-Billing 3.0](https://docs.peppol.eu/poacc/self-billing/3.0/bis-sb/)** specification, in which the buyer sends the self-billed invoice to the supplier. HMRC's [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) says concerns about self-billing have been addressed in other countries' mandates. The UK rules have not been published, including whether the self-billed farmer will need its own Peppol connection to receive them. See [self-billing and e-invoicing](https://einvoices.uk/news/self-billing-e-invoicing-uk).
## Northern Ireland farms
A Northern Ireland flat rate farmer can charge the FRA on agricultural produce sold to a VAT-registered customer in an EU member state, and that customer can reclaim it. NI businesses trading goods with the EU may need XI-prefixed VAT numbers. See [Northern Ireland and XI VAT](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat).
## Summary
| Farm situation | Today | 2029 position |
|---|---|---|
| VAT-registered, standard-rated sales to VAT-registered businesses | Full VAT invoice | In scope |
| VAT-registered, zero-rated produce | VAT invoice not required | Not yet confirmed |
| Flat rate farmer charging FRA | FRA invoice | Not yet confirmed |
| Self-billed by buyer | Self-billed VAT invoice under agreement | Expected to continue; UK rules not yet published |
| Not registered, not on the scheme | No VAT invoices | Sending: unlikely to apply. Receiving: not confirmed |
## What to do now
1. **Work out your mix:** FRA sales, zero-rated sales, standard-rated sales and self-billed income.
2. **Check your self-billing agreements** are current. Mandate or not, they are a legal condition.
3. **Ask your buyers** (processors, co-ops, auction marts) how they plan to self-bill electronically.
4. **Talk to your accountant** about whether staying on the flat rate scheme or registering for VAT suits you once the rules are published. This guide is not tax advice.
Follow the [timeline](https://einvoices.uk/timeline) for the Budget 2026 roadmap (28 October 2026), and see the [small business guide](https://einvoices.uk/news/e-invoicing-small-business-guide).
## Frequently asked questions
### Do flat rate farmers need e-invoicing?
Not confirmed. Flat rate farmers are not VAT-registered, and the 4% flat rate addition is not VAT, so their invoices are not VAT invoices in the normal sense. Their VAT-registered customers reclaim the addition as input tax. How these invoices will be treated has not been announced.
### What must a flat rate scheme invoice show?
An invoice number, your flat rate certificate number, your name and address, the customer's name and address, the date, a description, the price excluding the flat rate addition, and the rate and amount of the addition.
### Can my milk buyer or processor keep self-billing me?
Self-billing is allowed today under HMRC's rules, including for flat rate farmers. Peppol has a self-billing specification, and HMRC has said self-billing has been handled in other countries' mandates. UK-specific rules are still to come.
### Do I need to send VAT invoices for zero-rated produce?
Under current rules, VAT invoices are not required for zero-rated supplies. Whether the mandate will cover zero-rated sales has not been confirmed.
---
How to cite: "Farmers and e-invoicing: flat rate scheme, self-billing and 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-agriculture-farmers
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Benefits of e-invoicing for UK businesses: what is real
> The real benefits of e-invoicing for UK businesses, from faster payment to fewer errors, what the evidence says, and how to measure the gains yourself.
- Canonical URL: https://einvoices.uk/news/e-invoicing-benefits-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Finance teams, Small business, 2029 mandate, VAT
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [BIS Invoice Response 3.2](https://docs.peppol.eu/poacc/upgrade-3/profiles/63-invoiceresponse/)
---
The main benefits of e-invoicing are **less manual keying, fewer errors and faster payment**. Because an e-invoice arrives as structured data rather than a PDF, the buyer's software can check, match and post it automatically, and the supplier gets clearer, quicker feedback on whether it will be paid.
From April 2029, VAT-registered UK businesses will have to e-invoice anyway. This article separates the benefits you can count on from the headline numbers you should treat with care.
## Why the government says it is doing this
In the consultation response published with the Autumn Budget 2025, the government's case rests on:
- **productivity**: less manual processing for suppliers and buyers;
- **faster payment**: fewer disputes and errors, which matters most to small suppliers' cash flow;
- **tax accuracy**: better data at source, helping reduce VAT errors.
The UK has chosen a decentralised model with no real-time reporting to HMRC at launch. Peppol is confirmed as the network; the GOV.UK Tax update 2026 summary says it "will be the core interoperability network for e-invoicing in the UK".
## Benefits for the buyer (accounts payable)
| Benefit | Why it happens |
|---|---|
| No retyping | Invoice data lands in your system ready to post |
| Fewer keying errors | No manual transcription of amounts, VAT or references |
| Faster approval | Automatic matching to purchase orders and goods receipts |
| Single intake channel | One Peppol channel instead of inboxes, post and portals |
| Better fraud controls | Invoices come from an identified sender on the network, not an anonymous email, though bank detail checks are still needed |
| Cleaner VAT records | Structured VAT data feeds your records and returns |
See [accounts payable e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk).
## Benefits for the supplier (accounts receivable)
| Benefit | Why it happens |
|---|---|
| Confirmed delivery | No "we never got it" |
| Errors caught before sending | Peppol validation rejects malformed invoices before they reach the customer |
| Status visibility | Buyers can send Peppol [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response), such as acknowledged, under query, accepted or paid |
| Earlier dispute resolution | A query arrives as a structured response, not weeks later |
| Lower sending costs | No printing or postage |
The Peppol Invoice Response specification says its purpose is to give suppliers structured feedback so they can act early, manage cash flow and reduce manual status queries. It is optional for buyers, so the benefit depends on your customers using it. See [accounts receivable e-invoicing](https://einvoices.uk/news/accounts-receivable-e-invoicing-uk).
## The headline numbers, handled carefully
The government's consultation response cites industry research (it links to a Sage newsroom article) reporting:
- a **20% reduction in late payments** upon adoption;
- an **annual saving of £11,300** for small firms;
- a **3% boost to labour productivity** in finance-heavy sectors;
- a **2.2 times return** to small firms on their investment over two years.
These figures are **reported**, not official government estimates. They are averages from one source and will not describe your business. Use them as a reason to measure your own baseline, not as a forecast.
## How to measure the benefit for your business
Before you change anything, record a baseline over a typical month:
- [ ] Invoices received, and minutes spent keying or checking each one.
- [ ] Invoices sent, and how they are sent.
- [ ] Number of invoices queried or rejected by customers, and why.
- [ ] Number of supplier invoices with errors or missing POs.
- [ ] Average days from invoice to payment, both ways.
- [ ] Time spent answering "where is my payment?" queries.
Repeat after go-live. The difference is your benefit. Set it against the costs in our [e-invoicing cost guide](https://einvoices.uk/news/e-invoicing-cost-uk).
## A simple worked example
Take a business that receives 400 supplier invoices a month and spends, say, 5 minutes keying and checking each one. That is about 33 hours a month. If e-invoicing removes most of the keying, the saving is most of those hours, minus time spent on exceptions. Replace the numbers with your own: the method matters more than the result.
## Benefits that are easy to overlook
- **Fewer duplicate payments**, because invoice numbers and supplier IDs are structured.
- **Better audit trail**: who sent what, when, from which identifier.
- **Easier month-end**, because bills arrive and post sooner.
- **Readiness for public-sector customers**, many of whom already use Peppol. NHS Supply Chain requires suppliers to invoice via Peppol, and bodies covered by the Public Procurement Act 2023 must accept e-invoices.
- **Cross-border reach**: Peppol is used in many other countries, which can help UK businesses trading abroad. See [invoicing EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## The honest downsides
- One-off cost and effort: software, integration, data clean-up.
- New errors: invoices can now be rejected for rule breaches a human would ignore. See [common validation errors](https://einvoices.uk/news/common-peppol-validation-errors).
- A mixed period when some partners are on Peppol and some are not.
- Uncertainty until the UK specification is published, expected from the Budget 2026 roadmap on 28 October 2026.
## What to do now
- [ ] Record your baseline this month.
- [ ] Identify the process with the most manual effort, usually supplier bills.
- [ ] Ask whether your software can receive Peppol invoices early, so you start getting the benefit before 2029.
- [ ] Work through the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### What are the main benefits of e-invoicing?
Less manual data entry, fewer errors, faster approval and payment, better visibility of invoice status and more accurate VAT records. How much you gain depends on how manual your current process is.
### Does e-invoicing reduce late payments?
It removes common causes such as lost or mis-keyed invoices. The government's consultation response cites industry research reporting a 20% reduction in late payments on adoption, but that is a reported figure rather than an official estimate.
### Why is the UK government mandating e-invoicing?
The government points to productivity gains, faster payment for smaller suppliers and more accurate tax data. The mandate for VAT invoices starts in April 2029.
### Are there downsides to e-invoicing?
Yes: set-up cost, data clean-up, new validation errors to manage and a transition period with mixed formats. These are mostly one-off.
---
How to cite: "Benefits of e-invoicing for UK businesses: what is real", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-benefits-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Charity e-invoicing: does the 2029 mandate apply to you?
> Whether a charity is caught by UK e-invoicing depends on its VAT position. How the 2029 mandate meets charity reliefs, grants and trading subsidiaries.
- Canonical URL: https://einvoices.uk/news/e-invoicing-charities
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, VAT, 2029 mandate, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [How VAT affects charities (VAT Notice 701/1)](https://www.gov.uk/guidance/how-vat-affects-charities-notice-7011)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [How VAT works](https://www.gov.uk/how-vat-works/vat-thresholds)
- [Opting to tax land and buildings (VAT Notice 742A)](https://www.gov.uk/guidance/opting-to-tax-land-and-buildings-notice-742a)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
For most charities, whether e-invoicing applies comes down to one question: **are you VAT-registered?** From **April 2029**, VAT invoices issued between VAT-registered businesses, and to public bodies, must be e-invoices. A VAT-registered charity or trading subsidiary that invoices businesses or councils will be in scope as a sender. A small charity that is not VAT-registered issues no VAT invoices, so the sending obligation should not reach it. What it will have to *receive* is still open.
## Charities and VAT: the starting point
[VAT Notice 701/1](https://www.gov.uk/guidance/how-vat-affects-charities-notice-7011) treats a charity, or its trading subsidiary, like any other business when it makes taxable sales:
- It **must register** if its taxable sales exceed the **£90,000** threshold, and can register voluntarily below it. A charity with no taxable sales cannot register at all.
- Its income falls into three types: **outside the scope** (for example donations and most grants), **exempt** (for example qualifying fundraising events), and **taxable**.
- Many charities run taxable trading through a **trading subsidiary**, which may be VAT-registered in its own right.
[VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (paragraph 16.2.1) adds two rules that matter here. A VAT invoice is needed for **standard- or reduced-rated** supplies to **VAT-registered** customers. VAT invoices are **not required** for zero-rated supplies or for customers who are not registered.
## Which charity invoices could be caught
| Income or document | VAT invoice today? | In scope of the 2029 mandate? |
|---|---|---|
| Donations | No (outside the scope) | No |
| Grants freely given | No (outside the scope) | No |
| Funding that pays for a supply (for example a contract to deliver services) | Yes, if taxable and the charity is registered | Likely, if it is a VAT invoice to a business or public body |
| Sponsorship giving the sponsor significant benefits | Often taxable, so yes if registered | Likely |
| Commercial room hire, advertising sales, consultancy | Yes, if taxable and registered | Likely |
| Exempt fundraising events | No | No VAT invoice, so treatment not yet confirmed |
| Charity shop sales to the public | No (B2C) | No |
| Invoices received by a charity that is not VAT-registered | Suppliers may still issue VAT invoices | **Not yet confirmed** |
"Likely" reflects the headline policy that all VAT invoices must be e-invoices. The detailed scope rules have not been published.
### Grant or contract?
This distinction now has a second consequence. Notice 701/1 explains that funding is outside the scope if it is freely given. Conditions that only make sure the money is properly spent ("good housekeeping") do not turn it into payment for a supply. If the funder gets something in return, or a third party gets a directly linked supply, it may be consideration. If it is consideration and taxable, a VAT-registered charity needs a VAT invoice, which from 2029 means an e-invoice. Getting this right matters most with public-sector funders, which are themselves moving to e-invoicing.
## Charity VAT reliefs on purchases
Certain goods and services are **zero-rated or reduced-rated** when supplied to charities, whether or not the charity is VAT-registered. Examples from Notice 701/1 include advertising, certain medical and rescue equipment, and fuel and power for qualifying use. The mechanism:
- The charity gives the supplier an **eligibility declaration** (examples are in the Notice 701/6 supplement) and evidence of charitable status.
- The **supplier** is responsible for applying the correct rate and keeps the declaration.
- For fuel and power used partly for qualifying purposes, the charity certifies the percentage, and the supplier apportions.
Nothing announced so far moves this paperwork into the invoice itself. The supplier's e-invoice would carry the zero or reduced rate, and the declaration would stay on file. Whether the UK specification adds a field to reference a relief or certificate is **not yet confirmed**. For VAT category codes, see [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
Property is similar. A landlord's option to tax does not apply to a building used solely for a **relevant charitable purpose**, if the tenant or buyer says so before the supply ([VAT Notice 742A](https://www.gov.uk/guidance/opting-to-tax-land-and-buildings-notice-742a)). See [landlords and option to tax](https://einvoices.uk/news/e-invoicing-property-landlords).
## Charities delivering public contracts
Many charities deliver services under contracts with councils, the NHS or government departments. On public contracts, the buyer must already **accept** compliant e-invoices (Procurement Act 2023, section 67; regulation 70A in Scotland). From 2029, a VAT-registered charity's VAT invoices to those bodies must be e-invoices. See the [council](https://einvoices.uk/news/local-council-e-invoicing-suppliers) and [central government](https://einvoices.uk/news/central-government-e-invoicing-suppliers) guides.
## What is not yet confirmed
- Whether organisations that are **not VAT-registered** must be able to **receive** e-invoices. This matters for thousands of small charities. See [non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
- How **VAT groups** that include a charity's trading subsidiaries will be treated. See [VAT groups and e-invoicing](https://einvoices.uk/news/e-invoicing-vat-groups).
- Whether any support or simplification will be offered to small organisations. The [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) recorded concerns about the cost to small and low-volume invoicers, and said the government will consider sector needs.
The roadmap due at Budget 2026 (28 October 2026) should answer some of these.
## What to do now
1. **Confirm your VAT position**, and that of any trading subsidiary. Who is registered, and under which number?
2. **List your income streams** and mark which ones produce VAT invoices to businesses or public bodies.
3. **Review funding agreements** where the grant-or-contract question is borderline.
4. **Ask your finance software provider** about Peppol plans, especially if you invoice public bodies.
5. **Use our [scope checker](https://einvoices.uk/tools/am-i-in-scope)** for a quick first view.
This is general information, not tax advice. Charities should follow HMRC's guidance in Notice 701/1 or take professional advice for their own position. See also the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Do charities have to use e-invoicing from 2029?
A VAT-registered charity, or its trading subsidiary, will need to issue its VAT invoices to business and public-sector customers as e-invoices from April 2029. For charities that are not VAT-registered, the position on receiving e-invoices has not been confirmed.
### Does a charity need to send an invoice for a grant or donation?
Grants given freely, with nothing supplied in return, are outside the scope of VAT, so no VAT invoice arises. Some funding is in fact payment for a supply. Charities should check HMRC's tests in VAT Notice 701/1.
### How do zero-rated charity reliefs work with e-invoicing?
The charity gives its supplier an eligibility declaration, and the supplier applies the relief and keeps the declaration. Nothing announced so far changes that. The supplier's e-invoice would simply carry the zero or reduced rate.
### What is the VAT registration threshold for charities?
The same as for any business: taxable turnover over £90,000. Charities below it can register voluntarily.
---
How to cite: "Charity e-invoicing: does the 2029 mandate apply to you?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-charities
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Construction e-invoicing: CIS, reverse charge and 2029
> How the 2029 e-invoicing mandate meets construction: CIS deductions, the VAT domestic reverse charge, applications for payment and self-billing.
- Canonical URL: https://einvoices.uk/news/e-invoicing-construction-cis
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, VAT, 2029 mandate, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT domestic reverse charge technical guide](https://www.gov.uk/guidance/vat-reverse-charge-technical-guide)
- [How to use the VAT domestic reverse charge if you supply building and construction services](https://www.gov.uk/guidance/how-to-use-the-vat-reverse-charge-if-you-supply-building-and-construction-services)
- [What you must do as a Construction Industry Scheme (CIS) contractor](https://www.gov.uk/what-you-must-do-as-a-cis-contractor)
- [Buildings and construction (VAT Notice 708)](https://www.gov.uk/guidance/buildings-and-construction-vat-notice-708)
- [Self-billing (VAT Notice 700/62)](https://www.gov.uk/guidance/self-billing-notice-70062)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
Construction is the UK sector where invoicing is most complicated. A single subcontract payment can involve a **CIS deduction**, the **VAT domestic reverse charge**, an **application for payment**, a **retention** and sometimes a **self-billed** invoice raised by the contractor. The 2029 mandate does not change any of those rules. It does change the format: from **April 2029**, VAT invoices between VAT-registered businesses must be structured e-invoices.
This guide maps each construction practice onto e-invoicing, and flags what is not yet settled.
## CIS is not VAT, but it shapes the invoice
The Construction Industry Scheme deducts tax at source from subcontractors' pay: **20%** for registered subcontractors, **30%** for unregistered ones, and **0%** for those with gross payment status. HMRC's [contractor guidance](https://www.gov.uk/what-you-must-do-as-a-cis-contractor) sets out the calculation:
1. Start with the gross amount on the subcontractor's invoice.
2. Take away **VAT**, materials the subcontractor paid for directly, consumable stores, fuel (except for travelling), plant hire, and manufacturing or prefabricating materials.
3. Apply the CIS rate to what is left.
The contractor then gives a **payment and deduction statement** within 14 days of the end of each tax month.
### Worked example
A registered subcontractor (20% CIS) invoices £10,000 labour plus £2,000 materials it bought itself. The work is reverse-charged, so no VAT appears as payable on the invoice.
| | £ |
|---|---|
| Labour | 10,000 |
| Materials | 2,000 |
| Invoice total (VAT: reverse charge, customer accounts) | 12,000 |
| CIS deduction: 20% × 10,000 | (2,000) |
| Paid to subcontractor | 10,000 |
The VAT invoice is for **£12,000**. The CIS deduction reduces the **payment**, not the value of the supply. In EN 16931 terms, it must **not** be entered as a document-level "allowance", because allowances reduce the VAT taxable amount. EN 16931 has no dedicated field for a tax withheld at source. **How CIS deductions should appear in a UK e-invoice, if at all, has not been confirmed.**
## The VAT domestic reverse charge
Since **1 March 2021**, most standard- and reduced-rated construction services between VAT-registered businesses have used the reverse charge, where payment is reported under CIS. The customer accounts for the VAT. It does not apply where the customer is an **end user** or **intermediary supplier** that has given written confirmation, and it does not apply to employment businesses supplying staff.
HMRC's [technical guide](https://www.gov.uk/guidance/vat-reverse-charge-technical-guide) says the invoice must contain all the usual VAT invoice details and state that the reverse charge applies. Acceptable wording includes:
- "VAT Act 1994 Section 55A applies"
- "S55A VATA 94 applies"
- "Customer to pay the VAT to HMRC"
There is also a **5% disregard**. If the reverse-charge element is 5% or less of the whole supply, both parties can agree at the start of the contract to ignore it. This is judged on overall contract values, not invoice by invoice.
### In an e-invoice
EN 16931, the standard behind Peppol BIS Billing 3.0, has a VAT category for this: **AE ("Reverse charge")**. Its rules require:
- a **0%** VAT rate on reverse-charged lines (BR-AE-05)
- the **seller's VAT identifier** and the **buyer's VAT identifier** or legal registration identifier (BR-AE-02)
- an exemption reason code or the text "Reverse charge" in the VAT breakdown (BR-AE-10)
Software that cannot show reverse-charge VAT should add wording telling the customer to account for it to HMRC, as the technical guide says. A free-text invoice note can carry the HMRC wording. See [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol) and the dedicated guide to [reverse charge e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## Applications for payment, tax points and authenticated receipts
[VAT Notice 708](https://www.gov.uk/guidance/buildings-and-construction-vat-notice-708) (section 23) explains why construction invoicing looks different from other sectors:
- For contracts with **stage or periodic payments**, the tax point is the **earlier of receiving payment or issuing a VAT invoice**. There is no basic tax point when the work is finished, unless anti-avoidance rules apply.
- So many firms send an **application for payment** (not a VAT invoice) and raise the VAT invoice only when they are paid.
- **Retentions** have a delayed tax point: when the retention is paid or invoiced, whichever comes first.
- **Authenticated receipts** are an alternative: the customer prepares a receipt, and the supplier authenticates it after payment. HMRC is clear that "an authenticated receipt is not a VAT invoice". It can only be used for periodic-payment contracts, and must contain all VAT invoice particulars.
**Not yet confirmed:** whether authenticated receipts will survive the mandate, and whether applications for payment will need a structured equivalent. The application-then-invoice pattern fits e-invoicing well: the e-invoice is issued when payment is received.
## Self-billing by main contractors
Many main contractors **self-bill** their subcontractors. They raise the VAT invoice on the subcontractor's behalf under a written agreement, mark it "SELF-BILLING", and send it with payment ([VAT Notice 700/62](https://www.gov.uk/guidance/self-billing-notice-70062)). Under the reverse charge, where the original supply was self-billed, the **customer** raises any credit note.
Peppol already publishes a **BIS Self-Billing 3.0** specification, which uses invoice type code 389. HMRC's [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) said concerns about "self-billing and the VAT reverse charge" have been addressed in other countries' mandates. The UK's own rules are still to come. See [self-billing and e-invoicing](https://einvoices.uk/news/self-billing-e-invoicing-uk).
## Councils and housing associations as customers
Local authorities, government departments and housing associations can be **deemed contractors** under CIS once they spend more than £3 million on construction in 12 months. Work for them can carry CIS deductions on top of public-sector invoicing rules. See [invoicing a council](https://einvoices.uk/news/local-council-e-invoicing-suppliers).
## What changes, and what does not
| | Changes in 2029? |
|---|---|
| CIS rates, verification, monthly returns | No change announced |
| Reverse charge rules and invoice wording | Rules unchanged; format becomes structured (category AE) |
| VAT invoices between VAT-registered businesses | Must be e-invoices from April 2029 |
| Applications for payment | Not VAT invoices; treatment not yet confirmed |
| Authenticated receipts | Not yet confirmed |
| Self-billing | Expected to continue; UK rules not yet published |
| Real-time reporting to HMRC | Not at launch |
## What to do now
1. **Map your documents.** List every document you send or receive: applications, VAT invoices, authenticated receipts, self-bills and payment and deduction statements. Note which ones are VAT invoices.
2. **Check reverse-charge coding** in your software now. Wrong VAT treatment is the error most likely to fail validation.
3. **Ask your software provider** how it will carry CIS deductions alongside a Peppol invoice without touching the VAT totals.
4. **Collect subcontractor VAT numbers and CIS status** in clean master data. See [master data cleanup](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
This is general information, not tax advice. For specific cases, follow HMRC's guidance or speak to an adviser. See also the [mandate guide](https://einvoices.uk/mandate) and [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Does CIS change under e-invoicing?
No change to CIS has been announced. CIS is a deduction scheme for income tax and National Insurance, not VAT, so the e-invoicing mandate does not alter it. What is not yet known is how CIS deductions will be shown alongside a structured VAT e-invoice.
### How do you show the domestic reverse charge on an e-invoice?
In an EN 16931 or Peppol invoice, reverse-charged lines use VAT category code AE with a 0% rate, the buyer's VAT number, and the exemption reason 'Reverse charge'. HMRC also requires wording such as 'Customer to pay the VAT to HMRC'. Whether the UK adds extra rules has not been confirmed.
### Is an application for payment a VAT invoice?
Not normally. An application for payment is a request. In construction stage-payment contracts, the tax point is the earlier of receiving payment or issuing a VAT invoice, so the VAT invoice is often raised only when payment arrives.
### Can main contractors keep self-billing subcontractors after 2029?
Self-billing is common in construction, and Peppol already has a self-billing specification. HMRC has said self-billing has been handled in other countries' mandates, but the UK's detailed rules have not been published.
---
How to cite: "Construction e-invoicing: CIS, reverse charge and 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-construction-cis
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How much does e-invoicing cost in the UK? What to budget for
> What UK e-invoicing will cost your business: the cost items to budget for, the factors that drive price, how to compare quotes and why to distrust averages.
- Canonical URL: https://einvoices.uk/news/e-invoicing-cost-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, Small business, Software, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Peppol Certified Service Providers - OpenPeppol](https://peppol.org/members/peppol-certified-service-providers/)
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
---
There is **no reliable figure yet for what UK e-invoicing will cost**, and the honest answer is "it depends on your software, your volumes and how many systems you need to connect". For a small business already using cloud accounting, the cost may be little more than a plan upgrade and some time. For a group with several ERPs, it is an IT project with licences, integration and testing.
This guide explains what to budget for, what drives the price, and how to get a quote you can rely on. We do not quote prices, because published averages rarely match a specific business and the UK specification is not yet final.
## Why there is no single price
- **The UK rules are still being finalised.** Peppol is confirmed as the network (GOV.UK Tax update 2026 summary), but the data standard, any phasing and provider accreditation are expected to be set out from the roadmap at Budget 2026 on 28 October 2026.
- **The model is decentralised.** There is no government portal, so you pay a private provider, usually through your software.
- **Pricing models differ.** Providers may charge by subscription, by document, by connection or by project.
- **Your starting point matters most.** Clean data and modern software cost far less to convert than spreadsheets or a heavily customised ERP.
## The cost items to budget for
| Cost item | What it covers | Who it mostly affects |
|---|---|---|
| Software subscription or upgrade | A plan or edition that includes Peppol sending and receiving | Everyone |
| Access Point fees | Subscription, per-invoice or per-connection charges, if not included in software | Businesses using a separate provider |
| Set-up and registration | Creating your [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk), directory registration, configuration | Everyone, often included |
| Integration | Connecting ERP, billing or job systems to the Access Point; data mapping | Mid-size and large businesses |
| Data clean-up | Verifying VAT numbers, de-duplicating customers and suppliers | Everyone |
| Testing | Test environments, partner testing, fixing validation errors | Mid-size and large businesses |
| Supplier and customer onboarding | Communications, collecting Peppol IDs, support | Businesses with many trading partners |
| Training | Staff who raise invoices, approve bills and handle exceptions | Everyone |
| Archiving | Storing e-invoices; HMRC says VAT records should generally be kept for at least six years | Everyone; may be included |
| Internal time | Project management, finance and IT time | Often the largest hidden cost |
| Parallel running | Running old and new processes during transition | Larger businesses |
## What drives the price up or down
**Lower cost:**
- one accounting system, already cloud-based;
- small number of customers and suppliers;
- clean master data;
- software that includes Peppol in the existing plan.
**Higher cost:**
- several invoicing systems or legal entities;
- an older or customised ERP that needs an upgrade or add-on;
- complex invoices: self-billing, reverse charge, foreign currency, attachments;
- large supplier base needing onboarding;
- legacy systems that cannot produce structured data.
## How to build your own estimate
Use this template rather than an average. Fill in your own figures from quotes and internal estimates.
| Line | Your figure |
|---|---|
| A. Annual software/Access Point fees (from quote) | |
| B. Per-invoice fees × invoices sent and received per year | |
| C. One-off set-up and integration (from quote) | |
| D. Internal hours × internal hourly cost | |
| E. Training and onboarding | |
| **One-off total (C + D + E)** | |
| **Annual running total (A + B)** | |
Then set against it the savings you can measure today: hours spent keying supplier bills, chasing lost invoices and fixing errors. See [the benefits of e-invoicing](https://einvoices.uk/news/e-invoicing-benefits-uk).
## Questions to ask in any quote
1. Is Peppol sending **and** receiving included? Are credit notes included?
2. Is pricing per invoice, per month, per entity or per connection?
3. Are received invoices charged as well as sent ones?
4. What is included in set-up? Is directory registration included?
5. Are there charges for validation failures, resends or support?
6. Are archiving and export included, and for how long?
7. What will change when the UK specification is published? Is that update included?
8. Is the Access Point a [Peppol certified service provider](https://peppol.org/members/peppol-certified-service-providers/)?
9. What is the contract length and exit cost?
10. Is the price fixed until April 2029?
Get answers in writing and date them.
## Government support
**Confirmed:** no funding has been announced. The consultation response says "simple, low-cost solutions available for small and micro businesses will need to be a priority", notes that several Making Tax Digital providers focused on small businesses can already offer e-invoicing, and says support for businesses will form a key part of the implementation roadmap.
**Reported, not official:** the response cites industry research claiming a 2.2 times return to small firms over two years. The response links to a Sage newsroom article as the source. It is an industry estimate, not a government cost figure.
## Ways to keep cost down
- Choose software that includes Peppol rather than adding a separate service, where that fits.
- Clean data now, while it is cheap and unhurried.
- Align any software change with your [Making Tax Digital](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital) plans, so you change once.
- Consolidate invoicing into fewer systems before connecting them.
- Avoid long contracts signed before the UK specification is final, unless updates are included.
## What to do now
- [ ] Count invoices sent and received per year; it drives per-document pricing.
- [ ] Ask your current provider the ten questions above.
- [ ] Fill in the estimate template with real quotes.
- [ ] Add the result to your [project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams) and [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### How much does e-invoicing cost for a small business?
There is no reliable UK average yet. For many small businesses the cost will be whatever their accounting software charges for Peppol sending and receiving, plus time to tidy data. Ask your provider for a written price.
### Will the government pay for e-invoicing software?
No grants or funding have been announced. The consultation response says simple, low-cost solutions for small and micro businesses will need to be a priority. Support will form part of the implementation roadmap.
### Is there a charge to join Peppol?
Businesses do not usually join Peppol directly. They connect through an Access Point, often built into their software. Pricing models vary between providers, so ask for subscription, per-document and set-up fees in writing.
### Is there a government e-invoicing portal that is free to use?
No government portal has been announced. The UK has chosen a decentralised model in which businesses exchange invoices through service providers.
---
How to cite: "How much does e-invoicing cost in the UK? What to budget for", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-cost-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# ERP e-invoicing in the UK: SAP, Oracle, Dynamics, NetSuite
> How to plan UK Peppol e-invoicing on an ERP such as SAP, Oracle, Microsoft Dynamics or NetSuite: integration options, questions for vendors and project risks.
- Canonical URL: https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Software, Finance teams, Peppol, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
- [Peppol Certified Service Providers - OpenPeppol](https://peppol.org/members/peppol-certified-service-providers/)
---
If you run SAP, Oracle, Microsoft Dynamics, NetSuite or another ERP, UK e-invoicing is an **integration project**: your ERP must turn VAT invoices into Peppol e-invoices, hand them to an Access Point, and import supplier e-invoices into accounts payable, ready for **April 2029**. Whether that is a configuration change or a significant build depends on your ERP version, add-ons and how many invoicing systems you have.
This guide does not assess any vendor's product. Capabilities vary by edition, version, region and licence, and change frequently. Instead, it sets out the options, the questions to put to your vendor or partner, and the risks we see in ERP projects.
## What is confirmed
- E-invoicing is mandatory for VAT invoices from April 2029 (government consultation response).
- Decentralised model, with invoices exchanged between businesses through service providers.
- Peppol is the network. The GOV.UK Tax update 2026 summary says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." The same document says the government will keep engaging on "the role of legacy systems which cannot interoperate in the future system".
- No real-time reporting to HMRC alongside the mandate.
**Not yet confirmed:** the final data standard. The consultation response says the government will review "the risks and benefits of adopting an existing standard or designing a UK-specific standard". Today's reference point is [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide), built on [EN 16931](https://einvoices.uk/news/en-16931-explained). Any UK-specific rules (a [CIUS](https://einvoices.uk/glossary#cius)) would affect your mappings. The roadmap is due at Budget 2026 on 28 October 2026.
## Three ways to connect an ERP to Peppol
| Option | How it works | Suits | Watch out for |
|---|---|---|---|
| **Native ERP feature** | The ERP vendor's own e-invoicing or e-document module creates and sends documents, sometimes via a vendor-run or partner service | Businesses on current versions of the ERP | Licence cost, UK coverage, version upgrades required |
| **Add-on or partner connector** | A certified add-on maps ERP data to Peppol and connects to an Access Point | Older versions, or where native UK support is not ready | Support model, upgrade compatibility |
| **Separate Access Point or integration platform** | The ERP exports invoice data (via API or file); a provider converts, validates and sends | Several ERPs, billing systems or countries | Mapping ownership, two-way status flow, data duplication |
Many groups end up with a mix: the main ERP connected one way, and smaller billing systems another. A single Peppol connection for the whole group, fed from several systems, can be simpler to run.
## Questions to put to your ERP vendor or partner
Ask in writing and ask for the documentation reference:
1. For **our exact product, edition and version**, is UK Peppol sending supported today? Receiving?
2. Are invoices **and** credit notes supported, including self-billed invoices if we use them?
3. Is a version upgrade or new licence required?
4. Which Access Point is used? Is it on the [OpenPeppol list of certified service providers](https://peppol.org/members/peppol-certified-service-providers/)?
5. How will you implement UK-specific rules once the specification is published, and how quickly?
6. How are Peppol validation errors shown, and to whom?
7. Can incoming e-invoices be matched to purchase orders and goods receipts automatically?
8. Are Peppol [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response) supported in both directions?
9. How are attachments stored and archived with the invoice?
10. Is there a test environment, and can we test with real trading partners?
Our [guide to checking Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support) explains how to judge the answers.
## ERP data mapping: where projects slip
ERP projects rarely fail on the connection; they slip on data. Map each [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) field to an ERP source early:
- **Parties:** legal entity name, address, VAT number and [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) for every company code or business unit.
- **Tax:** each ERP tax code to a [VAT category code](https://einvoices.uk/news/uk-vat-category-codes-peppol) and rate, including reverse charge and exempt codes.
- **References:** PO number and buyer reference ([BT-10](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol)), contract and delivery references.
- **Units of measure:** ERP units to the code lists Peppol uses.
- **Rounding:** line and document totals calculated the way Peppol rules expect. Rounding is behind errors such as [BR-CO-15](https://einvoices.uk/news/peppol-validation-error-br-co-15).
- **Currency:** foreign currency invoices still need VAT totals in sterling under HMRC rules. See [multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
## A suggested phased plan for ERP users
| Phase | Activities |
|---|---|
| 1. Discovery (now) | Inventory invoicing systems and volumes; ask vendors the questions above |
| 2. Design | Choose connection option; map data; design exception handling |
| 3. Wait for spec | Confirm UK rules from the roadmap and guidance; adjust mappings |
| 4. Build and test | Configure, integrate, test with partners already on Peppol |
| 5. Pilot | Go live with a subset of customers and suppliers |
| 6. Roll-out | Extend to all in-scope entities before April 2029 |
Phases 1 and 2 can start now. See the full [e-invoicing project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams).
## Legacy systems
If part of your estate cannot produce structured invoices, raise it now. The government has said it will continue to engage on legacy systems that cannot interoperate in the future system, but has not said what any accommodation would be. Plan on the basis that you will need to replace or wrap them.
## What to do now
- [ ] List every system that creates VAT invoices, by legal entity.
- [ ] Send the ten questions above to your ERP vendor or partner.
- [ ] Start the tax code and party data mapping.
- [ ] Budget for licences, integration, testing and partner onboarding (see [e-invoicing costs](https://einvoices.uk/news/e-invoicing-cost-uk)).
- [ ] Work through the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### Does SAP support Peppol e-invoicing in the UK?
Ask SAP or your implementation partner for written confirmation for UK Peppol sending and receiving on your exact product and version. Capabilities differ between ERP editions, versions and add-ons, and the UK data standard is not yet final.
### Do we need middleware to connect an ERP to Peppol?
Not always. Options include a native e-invoicing feature, a vendor or partner add-on, or a separate Access Point or integration platform. The right choice depends on your ERP version, number of systems and countries.
### When should ERP users start their e-invoicing project?
ERP changes usually need testing and release cycles, so large businesses should start planning now, before the mandate in April 2029. Technical build can be finalised once the UK specification is published.
### Will the UK use Peppol BIS Billing 3.0?
Peppol is confirmed as the network, but the government has said it will review whether to adopt an existing standard or design a UK-specific one. Expect detail in the Budget 2026 roadmap.
---
How to cite: "ERP e-invoicing in the UK: SAP, Oracle, Dynamics, NetSuite", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK e-invoicing FAQ: 20 questions answered
> Short, sourced answers to the questions UK businesses ask most about e-invoicing: who's in scope, when it starts, Peppol, PDFs, costs, HMRC and what to do now.
- Canonical URL: https://einvoices.uk/news/e-invoicing-faq-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: 2029 mandate, Small business, Peppol, VAT
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [VAT record keeping](https://www.gov.uk/vat-record-keeping)
- [Guidance: Electronic Invoicing and Payment (HTML)](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html)
---
E-invoicing becomes mandatory in the UK for **VAT invoices between businesses and to the public sector from April 2029**. Invoices will be exchanged as structured data over **Peppol**, not as PDFs, and HMRC will **not** receive copies at launch. Below are short answers to the questions we hear most, with what is confirmed and what is still open.
The detailed implementation roadmap is due at **Budget 2026 on 28 October 2026**. We will update these answers when it is published.
## The basics
### 1. What is an e-invoice?
An invoice "issued, transmitted, and received in a structured format which allows for automatic electronic processing", in the government's words. The buyer's software reads it directly, with no retyping. See [E-invoice](https://einvoices.uk/glossary#e-invoice).
### 2. Is a PDF an e-invoice?
No, not for the mandate. The consultation said PDF and Word invoices, images, HTML invoices and faxes are not e-invoices. See [Does a PDF count?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
### 3. When does it start?
**April 2029.** Budget 2025: "From April 2029, businesses will be required to issue all VAT invoices as e-invoices". This site uses April 2029. See the [timeline](https://einvoices.uk/timeline).
### 4. Is it confirmed, or still a proposal?
The mandate is a confirmed government decision, announced at Budget 2025 on 26 November 2025. The detailed rules and the legislation are still to come.
## Who is in scope
### 5. Who has to comply?
Businesses issuing VAT invoices for business-to-business (B2B) and business-to-government (B2G) transactions. See [Who is in scope?](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) and the [scope checker](https://einvoices.uk/tools/am-i-in-scope).
### 6. I'm not VAT-registered. Does it apply to me?
Not as an obligation to issue. The consultation response says businesses "not required and choose not to be registered for VAT will not be obliged to adopt this technology." See [Non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
### 7. Is there an exemption for small VAT-registered businesses?
None has been announced. Budget 2025 refers to "all VAT invoices". See [E-invoicing for small businesses](https://einvoices.uk/news/e-invoicing-small-business-guide).
### 8. Does it cover sales to consumers?
The government says VAT invoices are typically not issued for business-to-consumer sales. Treatment of simplified invoices and receipts is not yet confirmed. See [Receipts and simplified invoices](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing).
### 9. What about Northern Ireland and the Isle of Man?
The mandate covers UK VAT invoices, and the Isle of Man shares the UK VAT area. How the rules will apply in detail to each has not been confirmed. See [Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat) and [Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
## How it works
### 10. How are e-invoices sent?
Over Peppol. On 23 June 2026 the government announced that Peppol "will be the core interoperability network for e-invoicing in the UK." Your software sends the invoice through a certified Access Point to your customer's Access Point: the [four-corner model](https://einvoices.uk/news/four-corner-model-explained).
### 11. Will there be a government portal?
No. The UK has chosen a decentralised model with no central hub. See [Clearance vs decentralised](https://einvoices.uk/news/decentralised-vs-clearance-model).
### 12. Will HMRC see my invoices?
Not at launch. The government "will not introduce [real-time reporting] alongside the e-invoicing mandate in 2029", though it may consider it later. See [Real-time reporting](https://einvoices.uk/news/real-time-reporting-uk).
### 13. Which format will be required?
Not yet confirmed. The government said it would weigh an existing standard against a UK-specific one. Peppol's invoice format, [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide), is based on the European standard EN 16931, and UK public bodies must already accept EN 16931 invoices under the Procurement Act 2023.
### 14. Can I keep using EDI?
Not yet known. The government said it will continue to engage on "the role of legacy systems which cannot interoperate in the future system." See [E-invoicing vs EDI](https://einvoices.uk/news/e-invoicing-vs-edi).
## Costs, software and risk
### 15. How much will it cost?
No official figure. The government expects products "at a range of price points, including some low-cost products", as with MTD. See [E-invoicing cost](https://einvoices.uk/news/e-invoicing-cost-uk).
### 16. Does my accounting software already do this?
Some UK products already offer e-invoicing or Peppol. Ask your provider whether it can **send and receive** Peppol invoices. See [Check your software's Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support).
### 17. What are the penalties?
None announced. Be wary of articles quoting fines. See [E-invoicing penalties](https://einvoices.uk/news/e-invoicing-penalties-uk).
### 18. How long must I keep e-invoices?
The mandate's archiving rules are not yet published. Under current VAT rules, you must keep VAT records for at least six years (longer in some cases, such as the One Stop Shop schemes), and HMRC's electronic invoicing notice (VAT Notice 700/63) explains how electronic invoices must be stored. See [E-invoice archiving](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
### 19. What about my EU customers?
EU countries' own mandates generally apply to businesses established there, not to UK suppliers, but customers may ask for Peppol invoices. See [Selling to EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## Getting ready
### 20. What should I do now?
You do not need to buy anything before the roadmap. Useful steps today:
- [ ] Count invoices sent and received each month, and how they are produced.
- [ ] Ask your software provider about Peppol send and receive, and their 2029 plans.
- [ ] Tidy customer and supplier VAT numbers and addresses.
- [ ] Find out which customers and suppliers are already on Peppol.
- [ ] If you advise clients, read the [guide for accountants](https://einvoices.uk/news/e-invoicing-guide-for-accountants).
- [ ] Work through the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
Still unsure about a term? Try the [A to Z glossary](https://einvoices.uk/glossary), or check common [e-invoicing myths](https://einvoices.uk/news/e-invoicing-myths).
## Frequently asked questions
### When does e-invoicing become mandatory in the UK?
From April 2029. Budget 2025 said businesses will be required to issue all VAT invoices as e-invoices from that date.
### Who has to e-invoice?
Businesses issuing VAT invoices to other businesses (B2B) and to the public sector (B2G). Businesses that are not VAT-registered, and not required to be, will not be obliged to adopt e-invoicing.
### Which network will the UK use?
Peppol. On 23 June 2026 the government announced that Peppol will be the core interoperability network for e-invoicing in the UK.
### Will HMRC receive my invoices?
Not at launch. The government has said real-time reporting will not be introduced alongside the 2029 mandate.
---
How to cite: "UK e-invoicing FAQ: 20 questions answered", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-faq-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing guide for UK accountants and bookkeepers
> How UK accountants and bookkeepers can prepare clients for the April 2029 e-invoicing mandate: triage, software reviews, data clean-up and new services.
- Canonical URL: https://einvoices.uk/news/e-invoicing-guide-for-accountants
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Accountants, 2029 mandate, Making Tax Digital, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [VAT Notice 700/22: Making Tax Digital for VAT](https://www.gov.uk/government/publications/vat-notice-70022-making-tax-digital-for-vat/vat-notice-70022-making-tax-digital-for-vat)
- [Find out if and when you need to use Making Tax Digital for Income Tax](https://www.gov.uk/guidance/check-if-youre-eligible-for-making-tax-digital-for-income-tax)
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
---
Accountants and bookkeepers will be the first people many small businesses ask about e-invoicing. The short answer for your clients: **VAT-registered businesses should plan to send and receive VAT invoices as e-invoices over Peppol from April 2029**, and most will do it through the software you already help them run.
This guide sets out a practical approach for practices: how to triage a client list, what to check, and where the work (and the fee opportunities) are likely to be.
## The position today
**Confirmed:**
- E-invoicing will be mandatory for VAT invoices from April 2029 (consultation response published with the Autumn Budget 2025).
- The UK is using a decentralised model, with invoices exchanged between businesses through service providers.
- Peppol is the network. The GOV.UK Tax update 2026 summary (23 June 2026) says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- There will be no real-time reporting to HMRC alongside the mandate.
**Not yet confirmed:** the data standard, exemptions, any phasing, penalties, and treatment of receipts, simplified invoices and self-billing. The roadmap is due at Budget 2026 on **28 October 2026**. The consultation response names tax professionals among the groups the government would engage from January 2026.
## E-invoicing is not Making Tax Digital, but it will feel like it
Clients will confuse the two, so be clear:
| | Making Tax Digital | E-invoicing |
|---|---|---|
| What it covers | Digital records and submitting returns to HMRC | How invoices are exchanged between businesses |
| Who receives the data | HMRC | The customer (via Peppol) |
| VAT | All VAT-registered businesses must keep digital records and file using software ([VAT Notice 700/22](https://www.gov.uk/government/publications/vat-notice-70022-making-tax-digital-for-vat/vat-notice-70022-making-tax-digital-for-vat)) | VAT invoices from April 2029 |
| Income Tax | Phased in from April 2026 (£50,000 qualifying income), April 2027 (£30,000) and April 2028 (£20,000) | Depends on VAT registration, not income |
The overlap matters for workload. MTD for Income Tax thresholds drop to £20,000 in April 2028, one year before the e-invoicing mandate. Many sole trader clients will face software changes in both years. Where you are already moving a client to new software for MTD, check now that it will support Peppol e-invoicing, so they change once rather than twice. See [e-invoicing vs Making Tax Digital](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital).
## Step 1: triage your client list
Pull a list from your practice software and tag each client:
| Tag | Who | Action |
|---|---|---|
| **A – in scope, issuing** | VAT-registered, invoices businesses or public sector | Full readiness review |
| **B – in scope, receiving** | VAT-registered, mainly B2C sales, buys from VAT-registered suppliers | Receiving set-up; watch B2C rules |
| **C – edge case** | VAT groups, self-billing, construction reverse charge, Northern Ireland, Isle of Man, overseas | Flag; wait for roadmap detail |
| **D – out of scope for now** | Not VAT-registered | Note; revisit if they approach the VAT threshold |
Links for the edge cases: [VAT groups](https://einvoices.uk/news/e-invoicing-vat-groups), [self-billing](https://einvoices.uk/news/self-billing-e-invoicing-uk), [construction reverse charge](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice), [Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat), [Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man), [non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
## Step 2: review software, client by client
Group clients by the software they use. For each product, ask the vendor once and apply the answer across the group. Useful questions:
1. Will the product send **and** receive Peppol invoices and credit notes for UK VAT invoices?
2. Is the Access Point built in, partnered or customer-supplied? Is it a Peppol certified service provider?
3. Is it included in current plans or charged separately?
4. How are Peppol IDs assigned and registered for each client company?
5. How are rejected invoices shown to the user?
6. Can an accountant or bookkeeper user see incoming e-invoices for a client?
Do not rely on marketing pages. See [how to check your accounting software's Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support).
Clients still invoicing from Word, Excel or a basic invoicing app are your priority group. They will need to move to software that can produce structured e-invoices; a [PDF is not an e-invoice](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
## Step 3: data clean-up
Bookkeepers often know where the bad data is. Before April 2029, help clients:
- confirm their own legal name, address and VAT number in every system;
- verify customer VAT numbers with HMRC's [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number) service;
- merge duplicate supplier and customer records;
- make sure VAT rates on items map to [VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol);
- record purchase order and buyer references for customers who need them.
Our [master data clean-up guide](https://einvoices.uk/news/master-data-cleanup-e-invoicing) has a full list.
## Step 4: rethink bookkeeping workflows
E-invoicing changes the purchase side most. Supplier bills will arrive as data instead of PDFs, so time spent on data capture should fall. That changes what clients pay you for. Review:
- **Bill capture.** If you use a receipt-capture or scanning tool, ask how it will handle Peppol invoices alongside paper receipts.
- **Approvals.** Who approves bills, and where? E-invoices make approval workflows easier to enforce.
- **Records.** HMRC says VAT records should generally be kept for at least six years ([VAT Notice 700/21](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)). Confirm where the e-invoice itself is stored, not just the posted transaction. See [e-invoice archiving](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
## Services you could offer
- E-invoicing readiness reviews based on our [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist)
- Software selection and migration, timed with MTD for Income Tax where possible
- Customer and supplier data clean-up
- Help with validation errors in the first months (see [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors))
- Training for client staff who raise invoices
Price these on your own costs; there are no reliable market rates yet.
## What to do now
Run the triage on your client list this month, so you know your exposure before the roadmap on 28 October 2026. Then write to your main software vendors with the six questions above, and add an e-invoicing line to your MTD client letters. Keep an eye on the [timeline](https://einvoices.uk/timeline) and HMRC's guidance as it is published.
## Frequently asked questions
### What do accountants need to do about e-invoicing?
Identify which clients are VAT-registered and issue or receive B2B or B2G invoices, review whether their software will support Peppol, and help them clean up customer and supplier data before April 2029.
### Is e-invoicing part of Making Tax Digital?
No. They are separate. MTD covers digital records and returns; e-invoicing covers how invoices are exchanged between businesses. They will overlap in practice because both rely on software.
### Do accountants need their own Peppol connection?
Usually not. Clients will normally connect through their own accounting software. A practice that processes bills on behalf of clients should check how its software handles Peppol for each client entity.
### Has HMRC published e-invoicing guidance for agents?
Not yet. The government said it would engage with stakeholders, including tax professionals, from January 2026, and an implementation roadmap is due at Budget 2026.
---
How to cite: "E-invoicing guide for UK accountants and bookkeepers", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-guide-for-accountants
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Hospitality e-invoicing: hotels, events and the 2029 mandate
> Most hospitality sales are B2C and stay outside the 2029 e-invoicing mandate. Corporate stays, events and trade accounts are the parts likely to be caught.
- Canonical URL: https://einvoices.uk/news/e-invoicing-hospitality
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, 2029 mandate, VAT, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Hotels and holiday accommodation (VAT Notice 709/3)](https://www.gov.uk/guidance/hotels-holiday-accommodation-and-vat-notice-7093)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [VAT: reduced rate for hospitality, holiday accommodation and attractions](https://www.gov.uk/guidance/vat-reduced-rate-for-hospitality-holiday-accommodation-and-attractions)
- [Tour Operators' Margin Scheme (VAT Notice 709/5)](https://www.gov.uk/guidance/tour-operators-margin-scheme-for-vat-notice-7095)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
For most hospitality businesses, the 2029 e-invoicing mandate touches only part of the business. Guests paying for a meal, a drink or a room are consumers, and VAT invoices are not normally issued to consumers. What is likely to be caught are **invoices to businesses**: corporate stays, conferences and events, trade and account customers, and anything sold to public bodies. Those VAT invoices must be e-invoices from **April 2029**. The other half of the picture is your **purchase ledger**: your VAT-registered suppliers will start sending you e-invoices.
## Which hospitality invoices are in scope
The mandate applies to VAT invoices between VAT-registered businesses (B2B) and to the public sector (B2G). HMRC's [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) noted that VAT invoices are typically not issued for business-to-customer transactions.
| Sale | Typical document | Likely position |
|---|---|---|
| Restaurant or bar bill paid by a member of the public | Till receipt | Out of scope (B2C) |
| Restaurant bill of £250 or less for a business guest who asks for a VAT receipt | Simplified VAT invoice | **Not yet confirmed** |
| Corporate hotel stay billed to the company's account | Full VAT invoice | In scope |
| Conference, wedding or event package for a business client | Full VAT invoice | In scope |
| Room hire for a council or NHS training day | Full VAT invoice (if taxable) | In scope (B2G) |
| Package sold under the Tour Operators' Margin Scheme | Non-VAT invoice with TOMS reference | **Not yet confirmed** |
Under [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (16.6), a simplified invoice is allowed for supplies of **£250 or less** if the customer agrees. Above that, or on request, a full VAT invoice is needed. Many business guests receive simplified invoices at the till. How those will be treated is among the most important open questions for the sector.
## VAT points that shape hospitality e-invoices
A structured e-invoice exposes the VAT logic line by line. These are the hospitality rules most likely to trip validation.
### The standard rate applies again
The temporary reduced rates for hospitality, accommodation and attractions **ended on 31 March 2022**. From 1 April 2022 the normal rules apply, and catering, accommodation and admissions that were temporarily reduced are standard-rated. Check that old rate codes have been removed from your property-management or EPOS system.
### Long stays: the 28-day rule
Under [VAT Notice 709/3](https://www.gov.uk/guidance/hotels-holiday-accommodation-and-vat-notice-7093), if an individual stays for more than 28 days, VAT from day 29 is charged only on the part of the charge that is not for accommodation. Your full charge still goes into the VAT return. The rule does not apply to company block bookings used by a series of short-term occupants, such as airline crew. On an e-invoice, the long-stay element needs splitting into lines with the right VAT treatment. A single line at 20% would be wrong.
### Conference rooms and catering
Hiring out a room that is not linked to catering, such as a meeting room, is **exempt** unless you have opted to tax (Notice 709/3, and see [option to tax](https://einvoices.uk/news/e-invoicing-property-landlords)). Tea, coffee and biscuits can go with the room as one exempt supply. A meal or buffet is a separate standard-rated supply. Mixed packages therefore often need several lines with different VAT categories on one invoice.
### Deposits, cancellations and booking fees
Most deposits are **advance payments**. VAT is due when you receive them, and a deposit kept after a no-show still carries VAT. Booking fees are treated the same way. If you invoice the deposit, the final e-invoice must show the deposit as already paid rather than charging VAT on it twice. In EN 16931 terms, that is the "paid amount" (BT-113).
### Service charges and tips
Notice 700 (8.14) is clear:
- A **compulsory** service charge is part of the price and follows the VAT treatment of the supply.
- **Optional** service charges and tips freely given are **outside the scope** of VAT.
On an e-invoice to a business, an optional service charge line should not be coded as standard-rated.
### Tour operators and TOMS
[VAT Notice 709/5](https://www.gov.uk/guidance/tour-operators-margin-scheme-for-vat-notice-7095) says "VAT invoices cannot be issued for supplies accounted for under TOMS", because the VAT is only known after the year-end calculation. When a TOMS supply is sold to a business, the invoice must say that TOMS applies. Hotels selling packages, and venues that bundle travel and accommodation, should check whether TOMS applies to them. **How TOMS invoices fit the mandate has not been confirmed.**
## The bigger change may be on the buying side
Hospitality businesses buy from food and drink wholesalers, breweries, laundry services, utilities and maintenance contractors, nearly all of them VAT-registered. From April 2029, those suppliers' VAT invoices to you will need to be e-invoices. That means:
- You will need a way to **receive** them, usually through your accounting software and its Access Point.
- Invoices from wholesalers often mix zero-rated food with standard-rated goods. Structured data makes these easier to post correctly than scanned PDFs.
- Groups with many sites should decide whether invoices go to one central Peppol address or several. See [Peppol participant IDs](https://einvoices.uk/news/peppol-participant-id-uk).
## Sector voice
Hospitality was barely represented in the consultation. Fewer than 1% of respondents who gave a sector came from hospitality and events, according to the response. Sector bodies and businesses that want rules on folios, simplified invoices and TOMS should engage before the details are set.
## What to do now
1. **Count your B2B invoices:** corporate accounts, events, trade customers and public bodies. That is your likely sending scope.
2. **Clean up VAT codes** in your PMS and EPOS: the standard rate, exempt room hire, out-of-scope tips.
3. **Ask your PMS, EPOS and accounting providers** about Peppol support for both sending and receiving. See [check your software](https://einvoices.uk/news/check-accounting-software-peppol-support).
4. **Watch the roadmap** at Budget 2026 on 28 October 2026 for the treatment of simplified invoices and receipts.
This is general information, not tax advice. See also the [small business guide](https://einvoices.uk/news/e-invoicing-small-business-guide) and the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Do restaurants and pubs need e-invoicing?
For sales to the public, no. The mandate covers VAT invoices, which are not normally issued to consumers. Invoices to business customers, such as corporate accounts or event bookings, are likely to be in scope from April 2029. How small simplified invoices will be treated is not yet confirmed.
### Do hotels have to send e-invoices to companies?
If a hotel issues a full VAT invoice to a VAT-registered company, that invoice is likely to need to be an e-invoice from April 2029. Detailed rules for folios and bills paid at checkout have not been published.
### Is a tip or service charge on the e-invoice subject to VAT?
A compulsory service charge is part of the price and follows the VAT treatment of the supply. Optional service charges and tips freely given are outside the scope of VAT.
### Can tour operators issue VAT invoices for TOMS supplies?
No. HMRC says VAT invoices cannot be issued for supplies accounted for under the Tour Operators' Margin Scheme. How TOMS invoices will fit the mandate has not been confirmed.
---
How to cite: "Hospitality e-invoicing: hotels, events and the 2029 mandate", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-hospitality
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Isle of Man e-invoicing: does the UK 2029 mandate apply?
> The Isle of Man shares the UK VAT area but has its own VAT law. No Manx e-invoicing mandate has been announced. Here's what is confirmed and what isn't.
- Canonical URL: https://einvoices.uk/news/e-invoicing-isle-of-man
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Isle of Man, 2029 mandate, VAT, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT guide (VAT Notice 700), section 4.7: The UK, Isle of Man and the Channel Islands](https://www.gov.uk/guidance/vat-guide-notice-700)
- [VIOM01000 - Introduction (HMRC VAT Isle of Man Manual)](https://www.gov.uk/hmrc-internal-manuals/vat-isle-of-man-manual/viom01000)
- [Isle of Man Government - VAT](https://www.gov.im/categories/tax-vat-and-your-money/customs-and-excise/vat/)
- [Isle of Man Government - Registering for VAT](https://www.gov.im/categories/tax-vat-and-your-money/customs-and-excise/vat/registering-for-vat/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
**The UK's 2029 e-invoicing mandate does not automatically apply in the Isle of Man, and no Manx e-invoicing requirement has been announced as of 20 October 2026.** The Isle of Man is treated as part of the UK *for VAT purposes*, but VAT there is charged under Manx law and run by Isle of Man Customs and Excise. Any obligation for Manx businesses would need Isle of Man action.
Because Manx VAT law generally mirrors the UK's, many advisers expect the Island to follow. That is an expectation, not a confirmed policy. This page sets out what is known.
## Why the Isle of Man is a special case
Three official statements explain the position:
- **HMRC VAT guide:** "For VAT purposes the Isle of Man is treated as part of the UK. If you have customers or suppliers in the Isle of Man, the VAT rules are the same as if they were in the UK."
- **HMRC's Isle of Man manual:** "UK VAT law does not apply in the IOM but the tax is chargeable under Manx law which generally parallels UK legislation. VAT is collected in the IOM under the Value Added Tax Act 1996 (of Tynwald)."
- **The same manual:** under the Customs and Excise Agreement 1979, "the spirit of the agreement … is that IOM legislation will continue to generally parallel UK legislation and procedures, so maintaining a customs union and common indirect tax area."
In other words, one VAT area, two legal systems. The UK and the Isle of Man keep **separate VAT registers**. Manx businesses register with Isle of Man Customs and Excise, not HMRC, and the Manx registration threshold is £90,000, the same as the UK's. Isle of Man VAT numbers can be checked using HMRC's "Check a UK VAT number" service, which the Isle of Man Government links to.
## What has been confirmed, and what hasn't
| Question | Status |
|---|---|
| UK mandate: all VAT invoices to be e-invoices from April 2029 | **Confirmed** for the UK |
| Peppol as the UK's core network | **Confirmed** (Tax update 2026) |
| UK law automatically extends to the Isle of Man | **No.** Manx law is needed |
| Isle of Man e-invoicing requirement | **Not announced** |
| Isle of Man start date, if any | **Not announced** |
| Manx-specific Peppol identifiers or rules | **Not announced** |
| UK invoices to Manx customers covered by the UK mandate | **Not confirmed** |
The consultation asked respondents whether they operated in the Isle of Man, so the government was aware of the question. But neither the consultation response, the Budget 2025 documents nor the Tax update 2026 says how the mandate will apply there. We found no statement on gov.im about e-invoicing as of 20 October 2026.
## What it means for Manx businesses
**If you only trade on the Island:** nothing has changed yet. No e-invoicing obligation has been announced. Keep following Isle of Man Customs and Excise guidance, which points to HMRC's VAT notices as generally relevant.
**If you sell to UK businesses:** your UK customers will be preparing to send and receive e-invoices through Peppol. Even without a Manx mandate, being able to send e-invoices may become a commercial expectation of large UK buyers.
**If you buy from UK businesses:** UK suppliers will be moving their invoicing to Peppol. If invoices to Manx customers are covered by the UK rules, your suppliers will want to reach you on Peppol. That has not been confirmed.
## What it means for UK businesses with Manx customers or suppliers
Because the two jurisdictions form one VAT area, goods between Great Britain and the Isle of Man are not imports or exports for VAT, and your invoices follow normal UK VAT rules. On the face of it, a UK business's VAT invoice to a Manx customer is still a UK VAT invoice. How the mandate treats it, and what happens if the customer cannot receive e-invoices, is one of the edge cases the roadmap needs to settle.
Keep a list of your Isle of Man customers and suppliers so you can act quickly when guidance arrives.
## Peppol in the Isle of Man
[Peppol](https://einvoices.uk/news/what-is-peppol) is an international network. Any business, anywhere, can join through a certified [Access Point](https://einvoices.uk/glossary#access-point). Manx businesses can already send and receive Peppol invoices voluntarily.
The open questions are about identifiers and governance. Manx VAT numbers carry the GB prefix, so the UK VAT number scheme (9932) may be usable technically. But whether Manx businesses should use it, and who would act as the Peppol Authority for the Island, have **not been confirmed**. We cover this in more detail in [Peppol IDs for the Isle of Man](https://einvoices.uk/news/peppol-id-isle-of-man).
## What to watch
- **Budget 2026 (28 October 2026):** the UK roadmap may say whether invoices to Manx customers are in scope.
- **Isle of Man Treasury and Customs and Excise announcements:** any Manx policy would likely be announced on gov.im.
- **Tynwald legislation:** a Manx requirement would need Manx law.
We will update this page when either government says more.
## What to do now
1. **Don't assume either way.** No Manx mandate exists today, but alignment with the UK is the historic pattern.
2. **Ask your software provider** whether it supports Peppol and serves Isle of Man customers.
3. **Identify your UK trading partners** who are likely to ask for e-invoices.
4. **For specific questions,** contact Isle of Man Customs and Excise (registration.customs@gov.im). UK-registered businesses should contact HMRC.
See also [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) and [Jersey, Guernsey and the Channel Islands](https://einvoices.uk/news/e-invoicing-jersey-guernsey-channel-islands), which are outside the UK VAT area.
## Frequently asked questions
### Does the UK e-invoicing mandate apply in the Isle of Man?
Not automatically. UK VAT law does not apply in the Isle of Man; VAT there is charged under Manx law, which generally parallels UK law. As of 20 October 2026, neither the UK nor the Isle of Man Government had announced an Isle of Man e-invoicing requirement.
### Will the Isle of Man follow the UK?
The 1979 Customs and Excise Agreement means Manx VAT law generally keeps pace with the UK, so alignment is widely expected. But no announcement, date or legislation has been published, so treat it as not confirmed.
### Can an Isle of Man business use Peppol now?
Yes. Peppol is an open international network and any business can connect through a provider. That is voluntary today.
### I'm a UK business with Isle of Man customers. Do my invoices need to be e-invoices?
Supplies between the UK and the Isle of Man are treated as within one VAT area, and UK businesses' VAT invoices are covered by the UK mandate. Whether invoices to Isle of Man customers are covered, and how they would receive them, has not been confirmed.
---
How to cite: "Isle of Man e-invoicing: does the UK 2029 mandate apply?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-isle-of-man
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Jersey, Guernsey and the UK e-invoicing mandate
> The Channel Islands are outside UK VAT, so the UK mandate does not apply there. Here's how it affects UK firms trading with Jersey and Guernsey, and vice versa.
- Canonical URL: https://einvoices.uk/news/e-invoicing-jersey-guernsey-channel-islands
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, VAT, Compliance, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT guide (VAT Notice 700), section 4.7: The UK, Isle of Man and the Channel Islands](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Goods and Services Tax (GST) for businesses (gov.je)](https://gov.je/Industry/BusinessAdviceHub/BusinessTaxesSocialSecurity/Pages/GoodsServicesTaxBusinesses.aspx)
- [2026 Tax Reform Package published - States of Guernsey](https://gov.gg/Tax-Reform-Package-2026-published)
- [Tax Reform Package Frequently Asked Questions - States of Guernsey](https://www.gov.gg/taxpackagefaqs)
- [Register for VAT](https://www.gov.uk/register-for-vat)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
**The UK e-invoicing mandate does not apply in Jersey or Guernsey.** The Channel Islands are outside the UK for VAT purposes, and HMRC's VAT guide states plainly: "There's no VAT in the Channel Islands." The UK mandate is built on UK VAT invoices, so Channel Islands businesses are not caught by it under their own law.
But many UK businesses trade with the islands, and some island businesses are registered for UK VAT. This guide explains where the edges are.
## Not the same as the Isle of Man
People often group the Crown Dependencies together. For VAT they are very different:
| | Isle of Man | Jersey | Guernsey |
|---|---|---|---|
| Part of the UK VAT area? | **Yes**, treated as part of the UK for VAT | **No** | **No** |
| Local consumption tax | VAT (Manx law, mirrors UK) | GST at 5% | None today. GST approved in principle, timetabled for Q1 2029 |
| Registration threshold | £90,000 | £300,000 | Not yet set |
| Goods to and from Great Britain | Not imports or exports | Imports and exports | Imports and exports |
| E-invoicing requirement announced? | No | No | No |
For the Isle of Man, see our separate guide to [e-invoicing in the Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
## Jersey: GST, not VAT
Jersey's Goods and Services Tax has a standard rate of 5%. Businesses with taxable turnover of £300,000 or more in a 12-month period must register, and others can register voluntarily, according to the Government of Jersey. We found no announced plan for a Jersey e-invoicing mandate as of 20 October 2026.
## Guernsey: GST on the way, no e-invoicing plan
Guernsey has no VAT or GST today. In October 2026, the States of Deliberation approved the 2026 Tax Reform package, which includes a goods and services tax at a standard rate of 3%. The package published in June 2026 proposed a start in 2028; the States' FAQs now list GST for the first quarter of 2029. The FAQs also say any later rise to 4% and then 5% must follow an assurance review. Check gov.gg for the final details.
Legislation still has to be drafted and approved. No e-invoicing rules have been proposed, and a new GST would not bring Guernsey into the UK mandate.
## UK businesses selling to the Channel Islands
HMRC says goods passing between the Channel Islands and the UK "are imported or exported for VAT purposes". In practice:
- **Goods** sent from the UK to a Channel Islands customer are generally exports, which can be zero-rated if the export conditions and evidence rules are met.
- **Services** follow the UK place of supply rules. Many B2B services to a Channel Islands business customer are outside the scope of UK VAT, but check HMRC's Notice 741A for your service.
HMRC's guidance says you do not have to issue VAT invoices for zero-rated supplies. Whether the UK mandate will cover invoices for exports and cross-border services has **not been confirmed**. The consultation response notes that respondents asked for "clarity on scope, including B2B, B2G, and cross-border transactions". The roadmap due at Budget 2026 on 28 October 2026 should help.
Even if cross-border invoices are left out, you may find it simpler to send everything through one process. Many island businesses could receive Peppol invoices if they choose to join. Ask your customers what they can accept.
## Channel Islands businesses selling into the UK
An island business that is **not** registered for UK VAT does not issue UK VAT invoices. The UK mandate should not apply to it. Its UK business customers will handle VAT through the normal rules for imported goods and reverse-charge services.
Some island businesses **are** registered for UK VAT, for example because they make taxable supplies in the UK. GOV.UK says businesses based outside the UK must register for UK VAT, whatever their turnover, if they supply goods or services to the UK, subject to the rules in Notice 700/1. A UK-registered island business would issue UK VAT invoices for those supplies. Whether non-established businesses will be in scope from April 2029, and on what terms, is **not confirmed**. If you are in this group, watch the roadmap closely.
## Should Channel Islands businesses join Peppol?
There is no legal requirement. The UK has confirmed [Peppol](https://einvoices.uk/news/what-is-peppol) as its core e-invoicing network, so large UK buyers will increasingly process invoices this way. Joining through a provider is voluntary and can make you easier to pay. Peppol identifiers are not limited to UK VAT numbers. Our [Peppol participant ID guide](https://einvoices.uk/news/peppol-participant-id-uk) explains the options.
## What to do now
**UK businesses**
1. List your Channel Islands customers and suppliers separately from Isle of Man ones.
2. Check you are treating goods to the islands as exports, with the right evidence.
3. Wait for the roadmap before changing cross-border invoicing.
**Jersey and Guernsey businesses**
1. If you are registered for UK VAT, expect UK e-invoicing questions and talk to your adviser.
2. Ask your large UK customers whether they plan to require Peppol invoices.
3. Keep an eye on local GST changes, especially in Guernsey.
For the wider scope, see [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate).
## Frequently asked questions
### Does the UK e-invoicing mandate apply in Jersey or Guernsey?
No. The Channel Islands are not part of the UK for VAT, and HMRC says there is no VAT there. The UK mandate is about UK VAT invoices, so it does not apply to Jersey or Guernsey businesses under their own laws.
### Does Jersey have its own e-invoicing mandate?
We found no announced e-invoicing requirement in Jersey as of 20 October 2026. Jersey has a Goods and Services Tax at 5%, with registration required at £300,000 turnover.
### Does Guernsey have GST?
Not yet. In October 2026 the States of Deliberation approved a tax reform package that includes a GST at an initial 3%. The States' FAQs list GST for the first quarter of 2029. The law still has to be made, and no e-invoicing rules have been announced.
### Do UK suppliers need to send e-invoices to Channel Islands customers?
Not confirmed. Goods sent to the Channel Islands are exports for UK VAT, and the government has not said how cross-border invoices will be treated under the mandate.
---
How to cite: "Jersey, Guernsey and the UK e-invoicing mandate", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-jersey-guernsey-channel-islands
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Haulage e-invoicing: freight, self-billing and the 2029 mandate
> What the April 2029 e-invoicing mandate means for hauliers, couriers and forwarders: freight VAT, self-billed subcontractors and customs disbursements.
- Canonical URL: https://einvoices.uk/news/e-invoicing-logistics-haulage
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, 2029 mandate, VAT, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Freight transport and associated services (VAT Notice 744B)](https://www.gov.uk/guidance/vat-on-freight-transport-and-associated-services-notice-744b)
- [Self-billing (VAT Notice 700/62)](https://www.gov.uk/guidance/self-billing-notice-70062)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Peppol BIS Self Billing](https://docs.peppol.eu/poacc/self-billing/3.0/bis-sb/)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
Most haulage invoices are B2B. Hauliers, couriers and freight forwarders sell to other businesses, so if you are VAT-registered and your customer is too, your VAT invoices will need to be **e-invoices from April 2029**. The sector also has three complications to plan for: **zero-rated and out-of-scope** international work, widespread **self-billing** of subcontractors, and **customs disbursements**.
## Which haulage invoices are in scope
| Work | VAT treatment (summary) | 2029 position |
|---|---|---|
| Domestic haulage for a UK VAT-registered customer | Standard-rated | **In scope** |
| Haulage for a council, NHS body or department | Standard-rated | **In scope** (B2G) |
| Import or export leg where the place of supply is the UK | Zero-rated, with evidence | **Not yet confirmed** (VAT invoices are not required for zero-rated supplies) |
| Freight for a business customer that belongs outside the UK | Outside the scope of UK VAT | **Not yet confirmed** (no UK VAT invoice) |
| Owner-driver subcontractor, self-billed by you | Standard-rated, invoice raised by customer | Expected in scope; UK self-billing rules not yet published |
| Delivery to consumers (for example a parcel courier's B2C service) | Standard-rated, no VAT invoice needed | Out of scope (B2C) |
## VAT on freight: the rules behind the table
[VAT Notice 744B](https://www.gov.uk/guidance/vat-on-freight-transport-and-associated-services-notice-744b) sets out the treatment.
**Place of supply.** Freight transport and related services to a customer "in business" fall under the B2B general rule: the place of supply is where the **customer belongs**. If that is outside the UK, the supply is outside the scope of UK VAT, although you can still recover related input tax. HMRC gives an example of how this works for a subcontractor. If a French company moves goods from Italy to Ireland for a UK company, the place of supply is the UK. But a UK haulier subcontracted by the French company to move the goods from Dover to Holyhead is supplying the French company, so the place of supply is France.
**Imports and exports.** Where the place of supply is the UK, transport that forms part of an **import or export** movement can be **zero-rated**. You need commercial documents as evidence linking your service to a specific import or export. HMRC's list includes sales invoices among the possible evidence. Transport after the goods reach their destination, or of goods not yet consigned for export, is not zero-rated.
**Why this matters for e-invoicing.** [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) says VAT invoices are not required for zero-rated supplies, and out-of-scope supplies carry no UK VAT at all. The mandate is framed around VAT invoices. It is **not yet confirmed** whether zero-rated or out-of-scope freight invoices must also be e-invoices. In a structured invoice, zero-rated lines use category **Z** and out-of-scope lines category **O**. An invoice with an "O" line cannot also carry standard-rated lines (EN 16931 rule BR-O-11), so mixed domestic and international jobs may need splitting. See [VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
## Self-billing in haulage
Many hauliers and courier networks **self-bill** owner-drivers and subcontract hauliers. The customer calculates the amount from completed jobs and raises the VAT invoice for the supplier. [VAT Notice 700/62](https://www.gov.uk/guidance/self-billing-notice-70062) requires:
- a **written agreement** before self-billing starts, with start and end dates, in which the supplier agrees not to issue its own VAT invoices for the covered supplies
- each invoice marked **"SELF-BILLING"**, with full VAT invoice details. HMRC advises adding "The VAT shown is your output tax due to HMRC"
- no self-billed VAT invoices for suppliers who are **not VAT-registered**, or whose registration has been cancelled
- a **new agreement** if the supplier changes VAT number or transfers the business as a going concern
- corrections through **debit notes**, not by reducing a later invoice
Owner-drivers are often small businesses, and some are below the VAT threshold. Self-billers should check VAT status regularly. The "Check a VAT number" service is the simplest way.
### Self-billing over Peppol
Peppol publishes a **[BIS Self-Billing 3.0](https://docs.peppol.eu/poacc/self-billing/3.0/bis-sb/)** specification, in which the buyer sends the self-billed invoice to the seller. It uses invoice type code 389. The UK has not yet said how self-billing will work under the mandate. Open questions include whether self-billed suppliers will need their own Peppol connection to receive the invoices. See [self-billing and e-invoicing](https://einvoices.uk/news/self-billing-e-invoicing-uk).
## Fuel, tolls and customs disbursements
- **Fuel invoices.** Notice 700 (17.1) lets fuel sellers show the **vehicle registration number** instead of the customer's name and address on invoices over £250. Whether this concession carries over to e-invoices is not confirmed. Fleet card invoices from fuel card providers are a separate B2B flow.
- **Customs duty paid for a customer.** Notice 744B says these disbursements are outside the scope of VAT and "should normally be identified separately on your invoice". Your own costs, such as postage and phone, are part of your charge. Mixing out-of-scope disbursements with standard-rated freight raises the same coding question that law firms face. See [disbursements on e-invoices](https://einvoices.uk/news/e-invoicing-professional-services-law-firms).
- **Surcharges** (fuel surcharges, waiting time, failed delivery charges) are generally part of the consideration for your main supply and follow its VAT treatment. Check HMRC guidance if you are unsure. Put them as separate lines or charges with the right VAT category.
## Northern Ireland and cross-border flows
Haulage between Great Britain, Northern Ireland and the EU involves extra paperwork, and Northern Ireland businesses moving goods may use XI VAT numbers. Structured invoices will expose any mismatch between the customer's VAT identity and the movement. See [Northern Ireland and XI VAT](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat) and [invoicing EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## Proof of delivery and attachments
Customers often hold invoices until they see proof of delivery (POD) or CMR notes. Peppol invoices can carry attachments and references to delivery documents, which can cut disputes. Agree with major customers which reference they match on. See [invoice attachments in Peppol](https://einvoices.uk/news/invoice-attachments-peppol).
## What is confirmed
- E-invoices for B2B and B2G VAT invoices from **April 2029**
- The government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that Peppol will be the core interoperability network
- No real-time reporting at launch
- A roadmap due at Budget 2026 on 28 October 2026
## What to do now
1. **Split your invoices** into domestic, zero-rated import/export, out-of-scope and B2C. Count each group.
2. **Review self-billing agreements** with every subcontractor, and confirm their VAT status.
3. **Check that your transport management system** can produce structured invoices with correct VAT categories, or feeds an accounting system that can. See [check your software](https://einvoices.uk/news/check-accounting-software-peppol-support).
4. **Clean customer master data**, including VAT numbers, legal entities and the references each customer matches on. See [master data cleanup](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
This is general information, not tax advice. See also the [mandate guide](https://einvoices.uk/mandate) and the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Do hauliers need e-invoicing from 2029?
VAT-registered hauliers issuing VAT invoices to VAT-registered customers or public bodies will need to send them as e-invoices from April 2029. Treatment of zero-rated international freight and of supplies outside the scope of UK VAT has not been confirmed.
### Is international haulage zero-rated?
Freight transport of goods being imported into or exported from the UK can be zero-rated where the place of supply is the UK, provided you hold commercial evidence linking your service to the import or export. B2B freight for a customer belonging outside the UK is generally outside the scope of UK VAT.
### Can I self-bill owner-drivers and subcontract hauliers?
Yes, under a written self-billing agreement that meets HMRC's conditions in VAT Notice 700/62. Each invoice must be marked 'SELF-BILLING'. Peppol has a self-billing specification, but the UK rules for self-billing under the mandate have not been published.
### Should customs duty paid for a customer carry VAT on my invoice?
HMRC's freight guidance says disbursements such as customs duty paid on a customer's behalf are outside the scope of VAT and should normally be shown separately on your invoice. Your own costs, such as postage and phone, form part of your charge.
---
How to cite: "Haulage e-invoicing: freight, self-billing and the 2029 mandate", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-logistics-haulage
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# 12 UK e-invoicing myths, and what's actually true
> No, a PDF won't count, HMRC won't see every invoice in 2029, and there's no government portal. We check common e-invoicing myths against official sources.
- Canonical URL: https://einvoices.uk/news/e-invoicing-myths
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, Small business, Peppol, HMRC
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Electronic invoicing: Quantitative research into small and medium-sized enterprises' usage and attitudes](https://www.gov.uk/government/publications/electronic-invoicing-sme-usage-and-attitudes/electronic-invoicing-quantitative-research-into-small-and-medium-sized-enterprises-usage-and-attitudes)
---
E-invoicing has generated a lot of half-truths. Some come from other countries' rules, some from vendors, and some from the fact that the UK's detailed roadmap is not out until **Budget 2026 on 28 October 2026**. Here are twelve common myths, checked against what the government has actually said.
## Myth 1: "Emailing a PDF already counts as e-invoicing"
**False for the mandate.** The consultation was explicit: PDF and Word invoices, images such as JPEGs, HTML invoices and faxes or OCR are not e-invoices. An e-invoice is structured data that goes straight into the buyer's system. The confusion is understandable, because HMRC's current guidance (VAT Notice 700/63) treats PDFs as one kind of electronic invoice for today's rules. That changes for VAT invoices from April 2029. See [Does a PDF count?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
## Myth 2: "HMRC will see every invoice in real time"
**False, at least for 2029.** The government "will not introduce [real-time reporting] alongside the e-invoicing mandate in 2029." It may consider it once e-invoicing is well established. See [Will HMRC require real-time reporting?](https://einvoices.uk/news/real-time-reporting-uk).
## Myth 3: "Invoices will go through a government portal"
**False.** The UK chose a decentralised model. Invoices travel from your provider to your customer's provider over Peppol, which the government announced on 23 June 2026 as "the core interoperability network for e-invoicing in the UK". There is no HMRC hub. See [Clearance vs decentralised](https://einvoices.uk/news/decentralised-vs-clearance-model).
## Myth 4: "Every business must e-invoice, VAT-registered or not"
**False.** The mandate covers VAT invoices. The consultation response says the smallest businesses "who are not required and choose not to be registered for VAT will not be obliged to adopt this technology." You may still receive e-invoices from your suppliers. See [Non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
## Myth 5: "Small VAT-registered businesses will be exempt"
**Not announced.** Some respondents asked for a turnover threshold. The government has not announced one, and the Budget 2025 wording covers "all VAT invoices". It is possible the roadmap adds easements, but nothing is confirmed. Do not plan on an exemption.
## Myth 6: "It will be phased in by business size"
**Not announced.** The government has given one date: April 2029. The consultation response records respondents' view that phased rollouts elsewhere created extra burdens, because buyers had to check whether each supplier was yet required to e-invoice. The roadmap may set milestones, but there is no announced phasing of the obligation.
## Myth 7: "Receipts in shops will have to be e-invoices"
**Not confirmed either way, and unlikely for ordinary consumer sales.** The government says VAT invoices are typically not issued for business-to-consumer transactions. How simplified invoices and receipts given to business customers will be treated is one of the open questions. See [Receipts and simplified invoices](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing).
## Myth 8: "Peppol is just for the NHS and big companies"
**False.** Peppol has been used by NHS suppliers since the 2014 NHS eProcurement Strategy, but it is a general-purpose network used across Europe and beyond. It is now the core network for the whole UK mandate. Small businesses will normally connect through their accounting software. See [What is Peppol?](https://einvoices.uk/news/what-is-peppol).
## Myth 9: "I'll need expensive new software"
**Unknown, but not necessarily.** No cost has been published. The government expects "a range of price points, including some low-cost products", based on experience with MTD, and says it is aware of MTD providers already offering e-invoicing to small businesses. Your current software may add it. See [How much does e-invoicing cost?](https://einvoices.uk/news/e-invoicing-cost-uk).
## Myth 10: "Most small firms already e-invoice"
**False.** HMRC-commissioned research among VAT-registered SMEs (surveyed February to March 2025) found that 29% said they use e-invoicing, while 80% most often send invoices as PDFs or by email. The researchers caution that results cannot be generalised to all SMEs. Either way, most small businesses have work to do.
## Myth 11: "MTD-compatible means e-invoicing-ready"
**False.** MTD is about digital records and VAT returns. E-invoicing is about how invoices are exchanged. Different features, sometimes in the same product. See [E-invoicing vs MTD](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital).
## Myth 12: "Penalties have already been set"
**False.** No penalty regime for e-invoicing has been published. Respondents asked whether penalties would mirror MTD; the government has not said. Be wary of any article quoting specific fines. See [E-invoicing penalties](https://einvoices.uk/news/e-invoicing-penalties-uk).
## Quick reference: confirmed, reported, unknown
| Claim | Status |
|---|---|
| Mandatory for VAT invoices (B2B and B2G) from April 2029 | Confirmed |
| Decentralised model | Confirmed |
| Peppol as core network | Confirmed (23 June 2026) |
| No real-time reporting at launch | Confirmed |
| Roadmap at Budget 2026 | Confirmed as planned |
| UK invoice specification | Not yet confirmed |
| Thresholds, exemptions or phasing | Not announced |
| Penalties | Not announced |
| Treatment of EDI and legacy systems | Under discussion |
## What to do now
Ignore scare stories and sales pitches built on myths. Ask your software provider what it will support, clean up customer and supplier data, and follow the [timeline](https://einvoices.uk/timeline). For quick answers, see our [e-invoicing FAQ](https://einvoices.uk/news/e-invoicing-faq-uk).
## Frequently asked questions
### Is a PDF invoice an e-invoice under the UK mandate?
No. The government's consultation said invoices in PDF or Word formats, images, HTML invoices and faxes are not e-invoices. An e-invoice is structured data the buyer's system can process automatically.
### Will HMRC see all my invoices from 2029?
No. The government has said real-time reporting will not be introduced alongside the 2029 mandate. Your invoices go to your customer, not to HMRC.
### Is there a small business exemption?
Businesses that are not VAT-registered, and not required to be, will not be obliged to e-invoice. No exemption or threshold for VAT-registered businesses has been announced.
---
How to cite: "12 UK e-invoicing myths, and what's actually true", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-myths
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing if you're not VAT registered: what changes in 2029
> Businesses that are not VAT registered are not obliged to e-invoice under the 2029 mandate, but suppliers, customers and Peppol may still affect you.
- Canonical URL: https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Small business, VAT, 2029 mandate, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Register for VAT](https://www.gov.uk/register-for-vat)
- [Finance Act 2008, Schedule 41, paragraph 2 (unauthorised issue of invoices)](https://www.legislation.gov.uk/ukpga/2008/9/schedule/41/paragraph/2)
- [Peppol BIS Billing 3.0: Electronic Address Scheme (EAS) code list](https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/)
---
**If your business is not VAT registered, the 2029 mandate does not oblige you to send e-invoices.** The government's requirement is that all *VAT invoices* must be e-invoices from April 2029. Only VAT-registered businesses can issue VAT invoices, and the government has said that "many of the smallest businesses who are not required and choose not to be registered for VAT will not be obliged to adopt this technology."
That is the confirmed position. But being outside the mandate does not mean e-invoicing will pass you by. Here is how it may still reach you.
## Why the mandate stops at VAT registration
HMRC's VAT guide sets out the basics:
- You cannot charge VAT, or issue a VAT invoice, unless you are VAT registered.
- VAT-registered suppliers must issue VAT invoices to VAT-registered customers.
- They "do not need to issue VAT invoices for supplies to customers who are not VAT registered."
Because the mandate is built on the VAT invoice, a business outside VAT has nothing to convert. The consultation response describes the policy as covering "VAT invoices", issued mainly in B2B and B2G transactions. No separate obligation for unregistered businesses has been proposed.
Do not show VAT on your invoices to look more established. Issuing an invoice showing VAT when you are not registered can lead to a penalty under Schedule 41 of the Finance Act 2008, calculated as a percentage of the VAT shown (up to 100% for deliberate and concealed behaviour).
## Who is typically not VAT registered
- Sole traders, partnerships and companies with taxable turnover at or below the £90,000 threshold that have not registered voluntarily
- Businesses that make only exempt or "out of scope" supplies, which cannot register
- Many small charities, clubs and community groups
If you fall into one of these groups, the mandate does not require anything of you.
## How e-invoicing could still affect you
| Situation | What to expect | Status |
|---|---|---|
| You buy from VAT-registered suppliers | They are not required to give you VAT invoices. They may send you an e-invoice, a PDF or a receipt. | Supplier treatment of unregistered customers is **not confirmed** |
| You sell to large companies or public bodies | Some already ask suppliers to submit invoices through a portal or Peppol. That is a commercial or procurement requirement, not HMRC's. | Current practice |
| You plan to grow past £90,000 | Once registered, your VAT invoices will need to be e-invoices if registration takes effect after April 2029. | **Confirmed** principle |
| You want to e-invoice voluntarily | You can. Peppol works with non-VAT identifiers. | Optional |
### The supplier's dilemma
HMRC's guidance acknowledges that suppliers usually cannot tell whether a customer is VAT registered, and many issue a VAT invoice to anyone who asks. Under the mandate, a supplier may simply send e-invoices to every business customer it can reach on Peppol. Whether suppliers will need to check registration status, or can send unregistered customers something else, is one of the details the implementation roadmap is expected to settle.
If a supplier sends you an e-invoice and you have no software to read it, the best fix is a commercial one: ask for a PDF copy or a readable version. Most e-invoicing tools can produce a human-readable view.
## Joining Peppol without a VAT number
UK e-invoicing will run on [Peppol](https://einvoices.uk/news/what-is-peppol). Every participant needs a [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) made of a scheme code and an identifier. The UK VAT number scheme is code **9932**, but the official Electronic Address Scheme list includes others, such as **0088** for the Global Location Number (GLN). A business without a VAT number can therefore be reachable on Peppol through a provider, if it wants to be.
Which identifier schemes the UK will recommend for businesses without a VAT number has **not been confirmed**. Our [Peppol participant ID guide](https://einvoices.uk/news/peppol-participant-id-uk) explains the options.
## Is it worth doing anyway?
There can be good commercial reasons:
- **Getting paid faster.** The consultation response cites industry research linking e-invoicing to fewer late payments, although that research came from respondents, not HMRC.
- **Customer requirements.** If your largest customers move their accounts payable to Peppol, being reachable may make you easier to buy from.
- **Future-proofing.** If you expect to register for VAT, setting up now avoids a rush later.
If your invoice volumes are low and your customers are happy, there is no obligation to change.
## What is not confirmed yet
- Whether VAT-registered suppliers must send e-invoices to customers who are not VAT registered
- Which Peppol identifiers non-VAT-registered businesses should use
- Whether public bodies, which receive invoices under the mandate, will set their own rules for unregistered suppliers
Expect more detail in the roadmap due at Budget 2026 on 28 October 2026.
## What to do now
1. **Confirm your VAT position** and how close you are to the £90,000 threshold.
2. **Check whether any customer already asks for e-invoices** or portal submission.
3. **If you expect to register before or after 2029**, choose accounting software with Peppol support on its roadmap.
4. **Never show VAT on an invoice** unless you are registered.
See also [who is in scope](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate), [e-invoicing for sole traders](https://einvoices.uk/news/e-invoicing-sole-traders-uk) and the [am I in scope tool](https://einvoices.uk/tools/am-i-in-scope).
## Frequently asked questions
### Do I need e-invoicing if I'm not VAT registered?
Not under the 2029 mandate as announced. It applies to VAT invoices, which only VAT-registered businesses can issue, and the government has said businesses that are not VAT registered will not be obliged to adopt e-invoicing.
### Will my VAT-registered suppliers send me e-invoices?
They do not have to give VAT invoices to unregistered customers at all. How suppliers will treat unregistered business customers under the mandate has not been confirmed.
### Can a non-VAT-registered business join Peppol?
Peppol identifiers are not limited to VAT numbers. The code lists include other schemes, such as the Global Location Number (0088), so joining voluntarily is technically possible through a provider.
### What happens when I register for VAT later?
From your effective date of registration you will issue VAT invoices, so after April 2029 those will need to be e-invoices. Plan your software before you cross the £90,000 threshold.
---
How to cite: "E-invoicing if you're not VAT registered: what changes in 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Northern Ireland e-invoicing: XI VAT numbers and the 2029 mandate
> Northern Ireland businesses are in scope of the UK's April 2029 mandate. An XI number is the same VAT number with an EU-facing prefix. Open points explained.
- Canonical URL: https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Northern Ireland, 2029 mandate, VAT, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Register for VAT: Selling or moving goods between Northern Ireland and the EU](https://www.gov.uk/register-for-vat/selling-or-moving-goods-between-northern-ireland-and-the-eu)
- [VAT on movements of goods between Northern Ireland and the EU (VAT Notice 725)](https://www.gov.uk/guidance/vat-on-movements-of-goods-between-northern-ireland-and-the-eu)
- [VATNIEU7440 - Business records: VAT invoices](https://www.gov.uk/hmrc-internal-manuals/vat-northern-ireland-and-the-eu/vatnieu7440)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Council Directive (EU) 2025/516 of 11 March 2025 (VAT in the Digital Age)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=OJ:L_202500516)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
**Northern Ireland businesses are expected to be covered by the UK's e-invoicing mandate in the same way as the rest of the UK.** Northern Ireland is part of the UK, UK VAT law applies there, and the government says all VAT invoices must be e-invoices from April 2029. The complication is the Windsor Framework: businesses trading goods with the EU use an **XI** prefix on their VAT number, and EU rules on goods still apply in Northern Ireland.
Here is what that means for e-invoicing, with the unconfirmed points clearly marked.
## XI and GB: one registration, two prefixes
HMRC's guidance says that once you have told HMRC you trade under the Windsor Framework and received its confirmation email, "you'll need to start using the XI prefix before your usual VAT registration number - for example, XI 123456789 instead of GB 123456789."
You are eligible to operate under the Windsor Framework if:
- your goods are located in Northern Ireland at the time of sale
- you receive goods in Northern Ireland from VAT-registered EU businesses for business purposes
- you sell or move goods from Northern Ireland to an EU country
Use of the prefix depends on what you are invoicing and to whom:
| Transaction | Prefix on your VAT number | Mandate position |
|---|---|---|
| Goods or services to a Great Britain business | GB | **In scope** from April 2029 (UK VAT invoice) |
| Goods or services to another Northern Ireland business | GB | **In scope** (UK VAT invoice) |
| Supplies to a UK public-sector body | GB | **In scope** (B2G) |
| Goods from Northern Ireland to an EU business | XI | **Not confirmed**: cross-border treatment not announced |
| Services to an EU business | GB | **Not confirmed** |
| Goods or services to the rest of the world | GB | **Not confirmed** |
HMRC's guidance says the XI prefix is not needed for services between Northern Ireland and the EU, for supplies within the UK internal market, or for trade between the UK and the rest of the world.
## Invoice content rules that already differ
For goods supplied from Northern Ireland to VAT-registered EU customers, HMRC's manual says a **full VAT invoice** is required, showing:
- XI as a prefix to your VAT registration number
- your customer's EU VAT number, with its country code
- for new means of transport, a description identifying it as such
The VAT guide adds that where the supply is zero-rated or exempt, the invoice must say why. Northern Ireland businesses also cannot use simplified or retailers' VAT invoices where the customer is from an EU member state.
Any UK e-invoice specification will need to carry these extra details for Northern Ireland to EU goods supplies, if those invoices are in scope. That has not been addressed publicly.
## The EU dimension: ViDA
The EU adopted its VAT in the Digital Age package (Council Directive (EU) 2025/516) on 11 March 2025. From **1 July 2030**, it requires e-invoicing and near real-time digital reporting for **intra-EU B2B transactions**.
Under the Windsor Framework, EU VAT rules on goods continue to apply in Northern Ireland. That raises an obvious question: will Northern Ireland businesses selling goods to EU customers fall under ViDA's rules from 2030, in addition to the UK mandate from 2029?
**This is not confirmed.** Some commentators have suggested Northern Ireland goods trade with the EU is likely to be affected. We have found no HMRC, HM Treasury or European Commission guidance setting out how ViDA will apply in Northern Ireland. Be wary of anyone who presents it as settled.
## Peppol and XI numbers
The UK has chosen [Peppol](https://einvoices.uk/news/what-is-peppol): the Tax update 2026 says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." Peppol is also widely used in EU countries, so a Northern Ireland business on Peppol can, in principle, reach both UK and EU buyers.
Peppol's identifier scheme for UK VAT numbers is code 9932. How XI-prefixed numbers should be represented in [Peppol IDs](https://einvoices.uk/news/peppol-participant-id-uk), and whether a business should register one ID or two, has **not been confirmed** by HMRC or OpenPeppol. Our [Peppol IDs for Northern Ireland](https://einvoices.uk/news/peppol-id-northern-ireland-xi) guide covers the practical options.
## VAT groups with Northern Ireland members
UK VAT groups can include members established in Northern Ireland. HMRC's Notice 700/2 says supplies of goods located in Northern Ireland between group members are only disregarded if both members are established in Northern Ireland, and goods moving from Great Britain to Northern Ireland between members can trigger VAT. See [VAT groups and e-invoicing](https://einvoices.uk/news/e-invoicing-vat-groups).
## What to do now
1. **Check whether you are identified under the Windsor Framework** and use XI correctly today.
2. **Split your invoices** into GB domestic, Northern Ireland to EU goods, services and rest of world.
3. **Make sure your systems store both prefixes** correctly against the same 9-digit number.
4. **Ask your software provider** how it handles XI numbers and EU-specific invoice fields on Peppol.
5. **Watch two timelines:** the UK roadmap at Budget 2026 on 28 October 2026, and any HMRC guidance on ViDA and Northern Ireland.
See also [who is in scope](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) and the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Does the UK e-invoicing mandate apply in Northern Ireland?
Northern Ireland is part of the UK and UK VAT law applies there, so VAT-registered Northern Ireland businesses should expect the April 2029 mandate to apply to their VAT invoices to UK business and public-sector customers.
### What is an XI VAT number?
It is your normal 9-digit UK VAT number with the prefix XI instead of GB, used by businesses identified as trading goods under the Windsor Framework when dealing with EU customers and suppliers. It is not a separate registration.
### Should I put XI or GB on my e-invoices?
Under current HMRC rules, XI is used for goods supplies between Northern Ireland and the EU. GB is used for domestic UK supplies, services, and trade with the rest of the world. How the UK e-invoice specification will handle the prefix has not been confirmed.
### Will the EU's ViDA e-invoicing rules apply to Northern Ireland?
This has not been confirmed. ViDA requires e-invoicing for intra-EU B2B transactions from 1 July 2030, and EU VAT rules on goods apply in Northern Ireland under the Windsor Framework, but neither the UK government nor HMRC has published how ViDA will apply there.
---
How to cite: "Northern Ireland e-invoicing: XI VAT numbers and the 2029 mandate", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing penalties in the UK: what HMRC could charge
> No e-invoicing penalties have been announced for the 2029 mandate. Existing VAT penalties for invoices and records still apply. Here's what's known.
- Canonical URL: https://einvoices.uk/news/e-invoicing-penalties-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: HMRC, Compliance, 2029 mandate, VAT
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Value Added Tax Act 1994, section 69 (breaches of regulatory provisions)](https://www.legislation.gov.uk/ukpga/1994/23/section/69)
- [Finance Act 2008, Schedule 41 (penalties: failure to notify and certain VAT and excise wrongdoing)](https://www.legislation.gov.uk/ukpga/2008/9/schedule/41)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Self-billing (VAT Notice 700/62)](https://www.gov.uk/guidance/self-billing-notice-70062)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
---
**No penalties have been announced for the UK e-invoicing mandate.** As of 20 October 2026, the government has confirmed that all VAT invoices must be e-invoices from April 2029, but it has not published any penalty regime, grace period or enforcement approach. The consultation response records that respondents wanted "clarity on the compliance framework, focused on the nature and scale of penalties for non-compliance", including whether penalties will "mirror those under MTD". The government did not answer that question.
So anyone quoting a specific e-invoicing fine for the UK today is guessing. What we *can* say is which existing VAT penalties already apply to invoices and records, because those rules will not disappear.
## What is confirmed, and what isn't
| Question | Status |
|---|---|
| A penalty regime specific to e-invoicing | **Not announced** |
| Penalty amounts or percentages | **Not announced** |
| A soft-landing or grace period | **Not announced** |
| Whether penalties will follow the MTD model | **Not announced** |
| Whether invalid e-invoices still count as VAT invoices for input tax | **Not announced** |
| Existing VAT penalties for invoices and records | **In force today** |
The implementation roadmap is due at Budget 2026 on 28 October 2026. It may set out milestones for legislation, but detailed penalty rules usually come with draft legislation and guidance, which could be later.
## Existing penalties that already touch invoicing
These are in force now and are not specific to e-invoicing. They show how HMRC can act on invoicing failures today.
### 1. Breaches of VAT regulations (section 69, VAT Act 1994)
The VAT invoicing rules sit in the VAT Regulations 1995. Section 69 of the VAT Act 1994 lets HMRC charge a penalty when a person fails to comply with requirements imposed by regulations made under the Act. The penalty is a daily amount of £5, £10 or £15, depending on previous failures in the last two years, for up to 100 days, or £50 if that is greater. A reasonable excuse can cancel it.
The VAT guide also warns retailers that "you may be liable to a financial penalty if you do not issue a VAT invoice when asked to do so by a taxable person."
### 2. Failing to preserve records (section 69(2))
If you fail to keep records you are required to preserve, the penalty is **£500**. VAT records, including invoices issued and received, must normally be kept for six years. See [how long to keep e-invoices](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
### 3. Invoices showing VAT when you are not registered (Schedule 41, Finance Act 2008)
Issuing an invoice that shows VAT when you are not authorised to do so carries a penalty based on the VAT shown: **30%** for non-deliberate cases, **70%** if deliberate and **100%** if deliberate and concealed. Reductions apply for disclosure.
### 4. Input tax claimed without valid evidence
A VAT invoice is the main evidence for reclaiming input tax. HMRC's self-billing notice warns that invoices issued without a valid self-billing agreement "are not evidence of your entitlement to input tax" and that "HMRC may assess you for tax and charge you a penalty". Inaccuracy penalties on returns can follow from claiming VAT you are not entitled to.
### 5. Persistent failure to meet e-invoicing conditions
HMRC's existing electronic invoicing notice (700/63) already says: "If you persistently fail to meet the conditions, you may be liable to a penalty." It covers authenticity, integrity and legibility of electronic invoices and storage.
## What a future regime might cover
Without speculating on amounts, a mandate creates new kinds of failure that the law will need to address. Likely questions include:
- **Not issuing an e-invoice** at all, for example sending a PDF instead
- **Issuing an e-invoice that fails validation** or is missing mandatory data
- **Not being able to receive** e-invoices from suppliers
- **The buyer's position**, whether a non-compliant invoice can support an input tax claim
None of these has been answered officially. The consultation response says the government will design standards and guidance with stakeholders and publish them "well ahead of the mandate taking effect".
## Lessons from Making Tax Digital
The consultation response repeatedly points to MTD as a reference point, especially for the role of software providers and accountants, and says the government will work closely with MTD software providers. But MTD is not e-invoicing, and the government has not said MTD's penalty approach will apply. Read [e-invoicing vs Making Tax Digital](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital) for the differences.
## How to reduce your risk
Penalties are unknown, but the risks are predictable:
1. **Get your VAT invoices right now.** The data required on a VAT invoice will not change because the format does. Good master data, such as customer VAT numbers and addresses, cuts errors.
2. **Keep your records.** Store e-invoices so you can reproduce them as they were sent or received.
3. **Check your self-billing agreements** are current and in writing.
4. **Test early.** Choose software that validates invoices before they are sent.
5. **Document reasonable excuses.** If something goes wrong, records of what you did and why help.
This is general information, not tax advice. For your circumstances, see HMRC's guidance or speak to an adviser.
## What to do now
- Follow the roadmap at Budget 2026 and the [timeline](https://einvoices.uk/timeline) for legislation dates.
- Check whether you are in scope with our [am I in scope tool](https://einvoices.uk/tools/am-i-in-scope).
- Read [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate).
## Frequently asked questions
### What are the penalties for not e-invoicing in the UK?
None have been announced. The government has not published a penalty regime for the April 2029 mandate. Respondents to the consultation asked for clarity on penalties, and details are expected in later publications.
### Will there be a soft landing period?
This has not been confirmed. Some other mandates have used grace periods, but the UK has not said whether it will.
### Can HMRC penalise invoicing mistakes today?
Yes. Existing VAT law includes penalties for failing to comply with VAT regulations, failing to preserve records, issuing invoices showing VAT when not registered, and inaccuracies in returns.
### Will e-invoicing penalties mirror Making Tax Digital?
Unknown. The consultation response records that respondents asked whether penalties would mirror MTD, but the government gave no answer.
---
How to cite: "E-invoicing penalties in the UK: what HMRC could charge", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-penalties-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Law firm disbursements on e-invoices: 2029 guide
> How law firms and other professional services firms should handle disbursements, recharges and confidential detail when invoices become e-invoices.
- Canonical URL: https://einvoices.uk/news/e-invoicing-professional-services-law-firms
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, VAT, 2029 mandate, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT: costs or disbursements passed to customers](https://www.gov.uk/guidance/vat-costs-or-disbursements-passed-to-customers)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
Disbursements are the professional-services question for the 2029 mandate. HMRC lets you leave a **genuine disbursement** out of the VAT calculation, as long as it is **itemised separately** on the invoice. Turning that into a structured e-invoice is not straightforward. The European standard behind Peppol does not let you mix "not subject to VAT" lines with standard-rated fees on one invoice, and the UK has **not yet confirmed** how disbursements should be coded. Here is what the rules say today, where the friction lies, and what to do before 2029.
## Who is in scope
From **April 2029**, VAT invoices issued between VAT-registered businesses (B2B) and to public bodies (B2G) must be e-invoices. For a law firm, accountancy practice, consultancy or agency, that means:
- **Corporate and commercial clients** that are VAT-registered: likely in scope
- **Public-sector clients** (councils, NHS, departments): in scope
- **Private clients** such as conveyancing, wills, family and personal injury work: B2C, and not expected to be covered
Many firms bill both, so plan for two invoice routes.
## What counts as a disbursement for VAT
HMRC's guide [VAT: costs or disbursements passed to customers](https://www.gov.uk/guidance/vat-costs-or-disbursements-passed-to-customers) and [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (section 25) set eight conditions, **all** of which must be met:
1. You acted as your client's **agent** when you paid the third party.
2. The client **received, used or had the benefit of** the goods or services.
3. It was the **client's responsibility** to pay.
4. The client **authorised** you to pay.
5. The client **knew** the goods or services came from a third party.
6. The cost is **shown separately** on your invoice.
7. You pass on the **exact amount** paid.
8. The goods or services are **clearly additional** to your own supply.
HMRC's examples of costs that are **not** disbursements:
| Cost | Disbursement? | Why |
|---|---|---|
| Bank fee for a telegraphic transfer to or from your own client account | No | Supplied to the firm, not the client |
| Personal search of official records to advise the client | No | The firm receives the information to give advice |
| Postal search obtaining a document for the client | Can be | The firm just obtains a document on the client's behalf |
| Your air fare or travel to see the client | No | Supplied to you; a recharge, so VAT applies |
| Your own postage and phone | No | Normal business costs |
HMRC also notes that treating a payment as a disbursement is usually only worth it where the third party charged no VAT, or the client cannot reclaim VAT.
### HMRC's worked example
Notice 700 shows how the invoice should look. It covers services of £80, non-disbursement expenses of £20 and a qualifying disbursement of £50:
| Line | £ |
|---|---|
| Services | 80.00 |
| Expenses (recharge) | 20.00 |
| **Value for VAT** | **100.00** |
| VAT at 20% | 20.00 |
| Disbursements | 50.00 |
| **Total** | **170.00** |
## Where e-invoicing gets awkward
In a paper or PDF invoice, the disbursement simply sits below the VAT line. In an EN 16931 invoice, which Peppol BIS Billing 3.0 is based on, **every line must carry a VAT category code**, and the totals must add up exactly. The options all have problems:
- **"Not subject to VAT" (category O)** fits the idea best, but rule **BR-O-11** says an invoice with an "O" VAT breakdown "shall not contain other VAT breakdown groups". You cannot combine it with standard-rated fees on one invoice.
- **Exempt (E)** or **zero-rated (Z)** would misdescribe the disbursement. It is not your exempt or zero-rated supply at all, and it would sit in your VAT return as one.
- **A separate invoice for disbursements** solves the coding but changes billing practice, and you need to think about how that document is treated.
- **Leaving disbursements off the invoice** and requesting them separately breaks HMRC's condition that they are itemised on your invoice.
**None of these is confirmed as the UK approach.** The government's [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) says its technical work will include "designing potential extensions to the standardised invoice to accommodate sector specific needs". Disbursements are an obvious candidate. See [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
## Confidential billing detail
Narrative-heavy bills are another issue. An e-invoice is structured data that flows into the client's finance system, so line descriptions may be read by more people than a partner's covering letter would be. The consultation response noted respondents' concerns about how data will be stored, shared and used, "particularly in sensitive sectors like legal services and healthcare".
Practical steps:
- Keep the **VAT invoice description** sufficient to identify the services, as Notice 700 requires, without privileged detail.
- Put detailed narrative in a separate **attachment** or matter report where the client accepts that. See [invoice attachments in Peppol](https://einvoices.uk/news/invoice-attachments-peppol).
- Agree a client **buyer reference** or matter number so invoices route to the right approver. See [buyer reference](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
Many large corporate clients already ask law firms to submit bills through e-billing or legal-spend platforms. Those platforms are not necessarily connected to Peppol, which the government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) as the core network for UK e-invoicing. How such platforms will sit alongside the mandate is **not yet confirmed**. HMRC's current guidance also warns against running dual paper and electronic invoice systems for the same supplies, outside a controlled trial.
## Other professional-services points
- **Interim and final bills.** Each VAT invoice creates a tax point when issued in advance of completion. Make sure interim bills that are VAT invoices go out as e-invoices, and that requests for payment on account are clearly not VAT invoices.
- **Credit notes and write-offs.** Fee reductions after billing need structured credit notes referencing the original invoice. See [credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
- **Third-party payers.** Where an insurer or another party pays the bill but the client receives the service, check who the VAT invoice must be addressed to before setting up Peppol routing.
- **Foreign clients.** Services to overseas business clients are often outside the scope of UK VAT. The mandate is about domestic VAT invoices. See [invoicing EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## What to do now
1. **Audit your disbursement codes** against HMRC's eight conditions. Many firms find recharges filed as disbursements, and errors like that will surface quickly in structured data.
2. **Separate B2B and B2C billing** in your practice-management system.
3. **Ask your practice-management provider** how it will handle disbursements under BR-O-11, and how it plans to connect to Peppol.
4. **Review standard bill narratives** for confidentiality.
Accountants advising clients should also read the [guide for accountants](https://einvoices.uk/news/e-invoicing-guide-for-accountants). This is general information, not tax advice. Follow HMRC's guidance for specific cases.
## Frequently asked questions
### How do you show disbursements on an e-invoice?
Under HMRC rules, a true VAT disbursement must be itemised separately and left out of the VAT calculation. How it should be coded in a structured UK e-invoice has not been confirmed. The EN 16931 standard does not let 'not subject to VAT' lines sit on the same invoice as standard-rated lines.
### Are court fees and search fees disbursements for VAT?
Some are and some are not. HMRC says a postal search obtained for the client may be a disbursement, but a personal search a solicitor does to advise the client is not. Its VAT is due as part of the solicitor's own fee.
### Do law firms need e-invoicing for private clients?
The mandate covers VAT invoices between VAT-registered businesses and to the public sector. Bills to private individuals are B2C and are not expected to be covered, although detailed scope rules have not been published.
### Can I recharge travel without VAT as a disbursement?
No. HMRC says your own travel, postage and similar costs are part of your supply. If you pass them on, they are recharges and VAT is due on them.
---
How to cite: "Law firm disbursements on e-invoices: 2029 guide", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-professional-services-law-firms
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing implementation plan for UK finance teams
> A phased e-invoicing implementation plan for UK finance teams preparing for April 2029: governance, workstreams, milestones, risks and a go-live checklist.
- Canonical URL: https://einvoices.uk/news/e-invoicing-project-plan-finance-teams
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, 2029 mandate, Peppol, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
---
A good e-invoicing implementation plan has **six phases: mobilise, discover, design, build, pilot and roll out**, with five workstreams running through them: accounts receivable, accounts payable, master data, technology and trading partners. Start the first two phases now; the later ones depend on the UK specification, expected from the roadmap at **Budget 2026 on 28 October 2026**, ahead of the mandate on **April 2029**.
This plan is written for finance teams in mid-sized and larger UK businesses. Smaller businesses can use the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist) instead.
## Fixed points to plan around
**Confirmed:**
- Mandate for VAT invoices from April 2029 (consultation response).
- Peppol as the network: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK" (GOV.UK Tax update 2026 summary, 23 June 2026).
- Decentralised model, no real-time reporting at launch.
- HMRC's 2026 transformation roadmap update says HMRC is working with the Department for Business and Trade "to publish an e-invoicing roadmap at Budget 2026 that will set out the milestones" to implementation in April 2029.
**Not yet confirmed:** interim milestones, the data standard, phasing by business size, penalties, provider accreditation. Build your plan with these as dependencies and revisit it after 28 October 2026.
## Governance
| Role | Typical owner | Responsibility |
|---|---|---|
| Sponsor | CFO or finance director | Budget, priority, decisions |
| Project lead | Financial controller or finance systems lead | Plan, risks, reporting |
| AR lead | Credit control / billing | Sales invoice process, customer readiness |
| AP lead | Purchase ledger | Supplier invoice intake, matching, approvals |
| Tax lead | VAT manager or adviser | VAT rules, scope, edge cases |
| Technology lead | IT / ERP team | Integration, Access Point, testing |
| Procurement lead | Procurement | Supplier onboarding and contracts |
Hold a short monthly steering meeting from now, weekly once build begins.
## Phase 1: Mobilise (start now)
- [ ] Appoint sponsor and leads.
- [ ] Agree scope: which legal entities, which invoice flows.
- [ ] Set up a risk log and decision log.
- [ ] Budget for discovery and vendor engagement (see [what e-invoicing costs](https://einvoices.uk/news/e-invoicing-cost-uk)).
## Phase 2: Discover
- [ ] Inventory every system that creates or receives invoices, by entity.
- [ ] Measure volumes: invoices and credit notes sent and received, by channel and partner.
- [ ] Identify edge cases: [self-billing](https://einvoices.uk/news/self-billing-e-invoicing-uk), [VAT groups](https://einvoices.uk/news/e-invoicing-vat-groups), [reverse charge](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice), [foreign currency](https://einvoices.uk/news/multi-currency-e-invoices-gbp), [Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat), [Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
- [ ] Ask software vendors for written Peppol plans (see [checking software support](https://einvoices.uk/news/check-accounting-software-peppol-support) and our [ERP guide](https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite)).
- [ ] Record a baseline of costs and cycle times, so you can measure [benefits](https://einvoices.uk/news/e-invoicing-benefits-uk).
- [ ] Assess [master data quality](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
**Output:** a discovery report with systems map, volumes, gaps and options.
## Phase 3: Design
- [ ] Choose the connection approach: native ERP feature, add-on, or a separate [Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
- [ ] Decide your [Peppol identifiers](https://einvoices.uk/news/peppol-participant-id-uk) for each entity.
- [ ] Map invoice data to [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) fields, flagging items to confirm against UK rules.
- [ ] Map tax codes to [VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol).
- [ ] Design exception handling: validation failures, delivery failures, customer rejections.
- [ ] Decide whether to send and process [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response).
- [ ] Design archiving to meet HMRC record-keeping rules (see [archiving and retention](https://einvoices.uk/news/e-invoice-archiving-retention-uk)).
- [ ] Segment trading partners for onboarding.
**Dependency:** the UK specification. If it is not published by the time you finish design, design against Peppol BIS Billing 3.0 and keep a list of assumptions.
## Phase 4: Build and test
- [ ] Configure software and Access Point; register Peppol IDs.
- [ ] Build integrations and mappings.
- [ ] Unit test with sample invoices, including credit notes and edge cases.
- [ ] Run validation testing; fix the [common errors](https://einvoices.uk/news/common-peppol-validation-errors).
- [ ] End-to-end test with friendly partners already on Peppol.
- [ ] Update procedures and train users.
## Phase 5: Pilot
- [ ] Go live with a small group of customers and suppliers.
- [ ] Monitor rejection rates, delivery failures and processing time.
- [ ] Fix issues before scaling.
## Phase 6: Roll out
- [ ] Onboard remaining partners in waves (see [supplier onboarding](https://einvoices.uk/news/supplier-onboarding-e-invoicing)).
- [ ] Retire old channels where possible, keeping fallbacks for out-of-scope documents.
- [ ] Hand over to business-as-usual owners with clear service levels.
- [ ] Complete well before April 2029.
## Workstreams across the phases
| Workstream | Key deliverables |
|---|---|
| Accounts receivable | Send process, customer IDs, exception handling ([AR guide](https://einvoices.uk/news/accounts-receivable-e-invoicing-uk)) |
| Accounts payable | Intake, matching, approvals, responses ([AP guide](https://einvoices.uk/news/accounts-payable-e-invoicing-uk)) |
| Master data | Clean customer and supplier records, VAT numbers, Peppol IDs |
| Technology | Connection, integrations, testing, archive |
| Trading partners | Segmentation, communications, onboarding |
| Tax | Scope, edge cases, VAT invoice compliance, tracking HMRC guidance |
## Risk register starters
| Risk | Mitigation |
|---|---|
| UK specification published late or differs from Peppol BIS Billing 3.0 | Design for change; keep mappings configurable; contract for updates |
| Vendor not ready | Get dated written commitments; identify an alternative Access Point |
| Poor master data | Start clean-up in phase 2 |
| Legacy systems cannot produce structured data | Replace, consolidate or route through an integration layer; track government engagement on legacy systems |
| Partners not ready | Segment and communicate early; keep a fallback channel |
| Resource clash with year-end or other projects | Plan phases around your finance calendar |
## What to do now
- [ ] Name a sponsor and a project lead this month.
- [ ] Start discovery: systems, volumes, vendors, data.
- [ ] Watch the Budget on 28 October 2026 and update the plan with any official milestones. We will update the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### How long does an e-invoicing implementation take?
It depends on the number of systems, entities and trading partners. A small business on cloud software may need weeks; a group with several ERPs should plan a multi-phase project and start discovery now, ahead of April 2029.
### Who should own an e-invoicing project?
Usually finance, with a named sponsor, and IT, tax, procurement and credit control as workstream leads. E-invoicing touches AP, AR, master data and VAT, so it is not purely an IT project.
### Can we start before the UK specification is published?
Yes. Discovery, data clean-up, vendor questions and supplier segmentation do not depend on the final specification. Technical build should be confirmed against UK rules once published.
### What are the key official milestones?
The roadmap is due at Budget 2026 on 28 October 2026 and the mandate starts on April 2029. HMRC says the roadmap will set out the milestones in between.
---
How to cite: "E-invoicing implementation plan for UK finance teams", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-project-plan-finance-teams
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Landlords, option to tax and e-invoicing from 2029
> Commercial landlords who opt to tax issue VAT invoices for rent, so the 2029 mandate is likely to apply. Exempt and residential lettings differ.
- Canonical URL: https://einvoices.uk/news/e-invoicing-property-landlords
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, VAT, 2029 mandate, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Opting to tax land and buildings (VAT Notice 742A)](https://www.gov.uk/guidance/opting-to-tax-land-and-buildings-notice-742a)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Land and property (VAT Notice 742)](https://www.gov.uk/guidance/vat-on-land-and-property-notice-742)
- [Tell HMRC about an option to tax land and buildings](https://www.gov.uk/government/publications/vat-notification-of-an-option-to-tax-land-andor-buildings-vat1614a)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
Whether the 2029 e-invoicing mandate affects a landlord depends on the **VAT treatment of the rent**. Most lettings of land and buildings are **exempt**, so no VAT invoice is issued. A commercial landlord that has **opted to tax** charges VAT on rent and issues VAT invoices to its tenants. When the tenant is VAT-registered, those are B2B VAT invoices, which must be e-invoices from **April 2029**.
## Rent and VAT: the starting position
[VAT Notice 742A](https://www.gov.uk/guidance/opting-to-tax-land-and-buildings-notice-742a) explains that supplies of land and buildings, "such as freehold sales, leasing or renting, are normally exempt from VAT". An **option to tax** turns those supplies into standard-rated ones, so the landlord can recover VAT on its own costs.
Key points from the notice:
- The option covers the whole building, or the specified land, and the land within its curtilage.
- It must normally be **notified to HMRC within 30 days** of the decision (form VAT1614A).
- It does **not** apply to buildings for use as **dwellings**, to buildings for **relevant residential** or **relevant charitable** purposes (other than offices), or where a valid **certificate** disapplies it, such as VAT1614D for buildings to be converted into dwellings.
| Letting | VAT | VAT invoice to tenant? | 2029 position |
|---|---|---|---|
| Commercial, opted to tax, VAT-registered tenant | Standard-rated | Yes | **Likely in scope** |
| Commercial, opted to tax, tenant not VAT-registered | Standard-rated | Not required (Notice 700, 16.2.1) | Not confirmed |
| Commercial, not opted | Exempt | No | Not confirmed (no VAT invoice) |
| Residential | Exempt | No | Out of scope in practice: no VAT invoice, usually B2C |
| Charity tenant, relevant charitable use | Option disapplied, so exempt | No | Not confirmed (no VAT invoice) |
## How rent is invoiced today
Rent is a **continuous supply** of services. [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (14.3) sets the rules that commercial property invoicing is built around:
- There is a **tax point each time you issue a VAT invoice or receive a payment**, whichever comes first.
- Where payments are due at regular intervals, you may issue **one VAT invoice covering up to a year**, provided more than one payment is due in that period. For each payment it must show the **VAT-exclusive amount, the due date, the VAT rate and the VAT payable**.
- If you do that, VAT on each payment is due on its due date or when you receive it, whichever is first. The tenant cannot reclaim the VAT before then.
- For continuous supplies to **connected persons** who cannot fully recover VAT, an **annual tax point** may arise.
In practice, landlords and managing agents use one of three patterns:
1. **Annual VAT invoice:** one schedule-style invoice for the year.
2. **Quarterly VAT invoice in advance:** a full VAT invoice issued before each quarter day. This creates the tax point when issued.
3. **Rent demand, then VAT invoice:** a request for payment (marked as not a VAT invoice), with a VAT invoice or receipt issued once the rent is paid.
## How each pattern fits e-invoicing
**Quarterly invoices in advance** translate most easily: each one becomes a structured e-invoice with an invoice period and a due date.
**The annual schedule invoice** is harder. One document lists several future payments with separate due dates and tax points. EN 16931 invoices carry a single due date and payment terms, plus an invoicing period. Whether the UK will allow a structured equivalent of the annual rent invoice, or expect one e-invoice per payment, is **not yet confirmed**.
**Rent demand, then invoice** fits quite well if the demand stays a commercial document and the e-invoice is issued on payment. Landlords should make sure that only one document is the VAT invoice. If you issue a VAT invoice and also send a detailed receipt, the receipt must not look like a second VAT invoice.
## Service charges, insurance and recharges
Service charges to commercial tenants generally follow the VAT treatment of the rent, but check HMRC's land and property guidance for your own arrangements. Recharges of costs to tenants are generally part of the landlord's supply and are not disbursements unless all of HMRC's disbursement conditions are met (Notice 700, section 25). See [disbursements on e-invoices](https://einvoices.uk/news/e-invoicing-professional-services-law-firms).
Mixed invoices are common in property. One invoice may cover exempt rent on a building that has not been opted, a designated parking space (which [VAT Notice 742](https://www.gov.uk/guidance/vat-on-land-and-property-notice-742) says is normally **standard-rated** even without an option to tax) and recharges. On a structured invoice each element needs the right VAT category, and exempt lines need an exemption reason. See [VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
## Managing agents
Many invoices are issued by a managing agent in the landlord's name. HMRC allows a third party to issue invoices for you. Under Notice 700 (17.8), "all the legal obligations relating to the contents, storage and production of the invoices raised remain with you". From 2029 the agent's system will need to send e-invoices under the **landlord's** VAT identity, which matters for Peppol addressing. Landlords with many property-owning entities should plan which Peppol identifiers to use. See [Peppol participant IDs](https://einvoices.uk/news/peppol-participant-id-uk) and [VAT groups](https://einvoices.uk/news/e-invoicing-vat-groups).
## Tenants: the receiving side
Every VAT-registered business that rents premises is a tenant receiving VAT invoices. From 2029, an opted landlord's rent invoice will reach you as an e-invoice. Make sure your accounts payable team knows your Peppol address, and check that lease and entity names match what landlords hold.
## What is not yet confirmed
- Treatment of the **annual rent invoice** under current Notice 700 rules
- Whether exempt supplies with no VAT invoice need any structured document (the mandate is framed around VAT invoices)
- Treatment of supplies to tenants who are not VAT-registered
- Any special rules for property, such as transfers of a going concern or capital goods scheme records
The government said in its [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) that its technical work will consider extensions to the standard invoice for sector needs. Detail is expected from the Budget 2026 roadmap (28 October 2026) onwards.
## What to do now
1. **List your opted properties** and confirm the options were notified. Keep the HMRC acknowledgements.
2. **Identify which tenants are VAT-registered**, and record their VAT numbers.
3. **Decide which invoicing pattern you use** for each portfolio, and avoid documents that could be mistaken for a second VAT invoice.
4. **Ask your property management software provider** about Peppol plans, including for invoices issued by managing agents.
This is general information, not tax advice. See also the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist) and the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Do landlords need e-invoicing?
If you have opted to tax a commercial property and issue VAT invoices for rent to VAT-registered tenants, those invoices are likely to need to be e-invoices from April 2029. Exempt and residential rents carry no VAT, and their position has not been confirmed.
### Can I issue one VAT invoice for a whole year's rent?
Yes, under current rules. If payments are due at regular intervals, you can issue one VAT invoice at the start of a period of up to a year that lists each payment's VAT-exclusive amount, due date, VAT rate and VAT. Whether this survives e-invoicing has not been confirmed.
### Is a rent demand a VAT invoice?
It depends on what it contains and how you use it. Many landlords send a request for payment and issue the VAT invoice only once paid. For continuous supplies such as rent, the tax point is the earlier of issuing a VAT invoice or receiving payment.
### How long do I have to notify an option to tax?
Normally within 30 days of the decision, according to VAT Notice 742A. HMRC may accept a later notification only if satisfied that you made the decision at the relevant time.
---
How to cite: "Landlords, option to tax and e-invoicing from 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-property-landlords
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Wholesale and retail e-invoicing in the UK: what 2029 means
> Wholesalers' B2B invoices must be e-invoices from April 2029. Retail receipts to consumers are different. What is confirmed and what is still open.
- Canonical URL: https://einvoices.uk/news/e-invoicing-retail-wholesale
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Sectors, 2029 mandate, VAT, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
---
If you are a **wholesaler** selling to VAT-registered businesses, the 2029 mandate applies to you squarely. From **April 2029**, your VAT invoices to business customers and public bodies must be structured e-invoices, and the government has confirmed Peppol as the network. If you are a **retailer** selling to consumers, most of your sales produce receipts, not VAT invoices, so the core obligation hits your B2B sales and your purchase ledger rather than the till.
## The line that matters: VAT invoice or not?
The mandate is about **VAT invoices**. HMRC's [consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response) puts it plainly: VAT invoices "are typically issued for business to business (B2B) and business to government (B2G) transactions where VAT is due (though not for business to customer transactions)".
[VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) sets the current rules:
- You must give a VAT invoice when you make a **standard- or reduced-rated** supply to a **VAT-registered** customer (paragraph 16.2.1).
- You don't need to issue VAT invoices for **zero-rated** supplies, or to customers who are **not VAT-registered**.
- Retailers must issue a VAT invoice when a customer asks for one, and may face a penalty for refusing a taxable person (16.6.2).
That gives a rough map of where the mandate lands:
| Transaction | Document today | Mandate position |
|---|---|---|
| Wholesale sale to a VAT-registered trade customer | Full VAT invoice | **In scope** from April 2029 |
| Sale to a council, NHS body or department | Full VAT invoice | **In scope** (B2G) |
| Retail sale to a consumer | Till receipt | Outside VAT invoicing; B2C not covered |
| Retail sale of £250 or less to a business customer | Simplified or retailer's VAT invoice | **Not yet confirmed** |
| Retail sale over £250 to a business that asks | Full VAT invoice | Likely in scope; detail not confirmed |
| Zero-rated wholesale sale (for example most food) | VAT invoice optional | **Not yet confirmed** |
| Cash and carry till roll used as VAT invoice | Adapted till roll | **Not yet confirmed** |
## Simplified and retailers' invoices
For supplies of **£250 or less**, VAT Notice 700 (16.6) allows a **simplified invoice** if the customer agrees. A retailer may also issue a **retailer's VAT invoice**. Both show only your name, address and VAT number, the tax point, a description, and the VAT-inclusive total and rate for each VAT rate. A card voucher can be adapted to serve as one.
These documents need no invoice number and no buyer details, and they show VAT-inclusive totals. That makes them a poor fit for a Peppol invoice, which needs buyer identification and a separate VAT breakdown. The government has not yet said how **simplified invoices and receipts** will be treated. It is one of the questions we expect the roadmap to address. See [do retail receipts need to be e-invoices?](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing)
## Cash and carry wholesalers
Paragraph 17.2 of Notice 700 lets a cash and carry adapt **till rolls** to serve as VAT invoices. The conditions are:
- a product coding system of at least two digits that identifies classes of goods
- up-to-date code lists given to VAT-registered customers
- all full VAT invoice details on the till roll
- copies kept for six years
Trade customers of a cash and carry are VAT-registered businesses, so these are B2B VAT invoices in principle. **Whether the till-roll method survives the mandate, or whether cash and carries will need to issue a Peppol invoice for each trade sale, is not yet confirmed.** It is one of the clearest sector questions for the roadmap.
## EDI in retail supply chains
Large grocery and retail supply chains have used **EDI** for years, with formats agreed between trading partners. That is real e-invoicing, but not necessarily the kind the mandate will require:
- **Network.** The government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that Peppol will be "the core interoperability network for e-invoicing in the UK". It has also said it will keep engaging on the role of **legacy systems** that cannot interoperate.
- **Standard.** The UK data standard is still to be published. Peppol BIS Billing 3.0, based on EN 16931, is the obvious candidate, but it is not confirmed.
- **Duplicates.** HMRC's [Electronic invoicing notice](https://www.gov.uk/guidance/electronic-invoicing-notice-70063) warns against "dual systems" that send electronic and paper invoices for the same supplies, outside a controlled trial. Moving channels needs a clean cut-over.
See [e-invoicing vs EDI](https://einvoices.uk/news/e-invoicing-vs-edi) for a fuller comparison.
## Wholesale invoicing pain points to fix now
Structured invoices are validated line by line. These wholesale habits cause the most trouble:
- **Mixed VAT rates on one invoice.** Food (often zero-rated) and non-food (standard-rated) lines need correct VAT category codes and a breakdown per rate. Zero-rated lines must not carry an exemption reason. See [VAT category codes](https://einvoices.uk/news/uk-vat-category-codes-peppol).
- **Promotional and retrospective discounts.** Notice 700 (18.2) lets you leave the original VAT unadjusted for a contingent discount, if both sides agree and the customer can recover all the VAT. Otherwise you issue a credit note. Decide which you do and make your credit notes structured too. See [credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
- **Rounding.** Notice 700 allows rounding at line or invoice level, consistently, but retailers calculating VAT at line level must not round down (17.6). Peppol validation checks the arithmetic. See [BR-CO-15](https://einvoices.uk/news/peppol-validation-error-br-co-15).
- **Customer master data.** Trade customers' VAT numbers and legal names need to be right for Peppol addressing. See [master data cleanup](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
- **Northern Ireland.** Goods sold from or to Northern Ireland may involve XI VAT numbers and EU rules. See [Northern Ireland and XI VAT](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat).
## On the buying side
Retailers and wholesalers usually *receive* many more invoices than they send. From 2029, VAT-registered suppliers will send you e-invoices, so your accounts payable system must be able to receive and process them through an Access Point. That is where the efficiency gains usually show up first. See [accounts payable and e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk).
## What to do now
1. **Split your sales** into B2C, B2B under £250, B2B over £250 and public sector. Count invoices in each group.
2. **List your EDI partners**, and ask your EDI provider about its Peppol plans.
3. **Test your VAT coding** for mixed-rate baskets.
4. **Wait for the roadmap** (Budget, 28 October 2026) before rebuilding till or receipt processes. That part is genuinely unknown.
See also the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist) and the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Do wholesalers need e-invoicing from 2029?
Yes, for VAT invoices to VAT-registered business customers and public bodies. From April 2029 those must be issued as e-invoices. Peppol is the confirmed network.
### Do shop receipts have to be e-invoices?
The mandate covers VAT invoices, and VAT invoices are not normally needed for sales to consumers. How simplified invoices and receipts given to business customers will be treated has not been confirmed.
### Can a cash and carry till receipt count as a VAT invoice?
Today, yes, if the cash and carry meets HMRC's conditions in VAT Notice 700 paragraph 17.2, including product codes and full VAT invoice details. Whether that will still be allowed after April 2029 is not yet known.
### We already use EDI with our retail customers. Is that enough?
Not necessarily. Peppol is the confirmed national network, and the UK data standard has not yet been published. Many EDI providers may connect to Peppol, but check with yours.
---
How to cite: "Wholesale and retail e-invoicing in the UK: what 2029 means", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-retail-wholesale
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing for small businesses in the UK: a plain guide
> What the 2029 e-invoicing mandate means for UK small businesses: who is affected, what changes day to day, what it may cost and what to do first.
- Canonical URL: https://einvoices.uk/news/e-invoicing-small-business-guide
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Small business, 2029 mandate, Peppol, Software
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number)
---
If your small business is VAT-registered, you should expect to send and receive VAT invoices as **e-invoices from April 2029**. For most small firms that will mean using accounting software that sends invoices over the Peppol network for you, rather than emailing PDFs.
This guide explains what changes, what does not, and what you can do now without spending money.
## Does it apply to my business?
The government's consultation response, published with the Autumn Budget 2025, says e-invoicing will be mandatory for VAT invoices from 2029. It has not set a turnover or employee threshold.
- **VAT-registered and you invoice other businesses or the public sector:** you are in scope, as things stand.
- **VAT-registered and you sell mostly to consumers:** you may not issue many in-scope invoices, but you will still receive invoices from VAT-registered suppliers. The treatment of B2C sales and receipts is not yet confirmed.
- **Not VAT-registered:** the consultation response notes that many of the smallest businesses are not registered for VAT and will not have to adopt e-invoicing. Your customers may still ask for e-invoices.
- **Sole traders:** the same rules depend on VAT registration, not legal form. See [e-invoicing for sole traders](https://einvoices.uk/news/e-invoicing-sole-traders-uk).
Not sure? Use our two-minute [scope checker](https://einvoices.uk/tools/am-i-in-scope).
## What actually changes day to day
Today you might create an invoice in your software, save it as a PDF and email it. After the change:
1. You create the invoice in your software as now.
2. Your software turns it into a structured e-invoice and sends it through a [Peppol Access Point](https://einvoices.uk/glossary#access-point).
3. Your customer's provider receives it and drops it into their software.
On the buying side, supplier bills arrive in your software as data, ready to approve, instead of as PDFs to type in. This is the [four-corner model](https://einvoices.uk/news/four-corner-model-explained). There is no government portal to log into, because the UK has chosen a [decentralised model](https://einvoices.uk/news/decentralised-vs-clearance-model).
What does **not** change: your VAT returns still go through Making Tax Digital, and the government has said there will be no real-time reporting of invoices to HMRC alongside the mandate. Your invoices still need to meet normal VAT invoice rules (see [what a VAT invoice must include](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing)).
## What is confirmed and what is still open
**Confirmed:** the April 2029 start for VAT invoices; a decentralised model; Peppol as the network. The GOV.UK Tax update 2026 summary says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
**Not yet confirmed:** any exemptions, phasing by size, penalties, the exact data standard, and how receipts and simplified invoices are treated. These are expected in the roadmap at Budget 2026 on 28 October 2026.
## What will it cost a small business?
Nobody can give a reliable figure yet, and you should be wary of anyone who does. Costs depend on your software and how many invoices you handle. The likely items are:
- a software subscription that includes e-invoicing, or an add-on or per-invoice fee;
- time to clean up customer and supplier details;
- a few hours learning the new screens.
The consultation response says that "simple, low-cost solutions available for small and micro businesses will need to be a priority", and notes that several Making Tax Digital providers aimed at small businesses can already provide e-invoicing. It did not announce grants. Our [e-invoicing cost guide](https://einvoices.uk/news/e-invoicing-cost-uk) lists what to ask for in a quote.
## What about the benefits?
Getting paid faster is the most talked-about benefit for small firms. The government's consultation response cites industry research suggesting adoption can reduce late payments by 20% and deliver a 2.2 times return for small firms over two years. Treat these as reported figures from industry research rather than guarantees. The practical gains are easier to see: no retyping of supplier bills, fewer "we never received it" disputes, and invoices that fail validation get flagged before they reach the customer. See [the benefits of e-invoicing](https://einvoices.uk/news/e-invoicing-benefits-uk).
## Questions to ask your software provider
Send these by email so you have the answer in writing:
1. Will your product send **and** receive Peppol e-invoices for UK VAT invoices?
2. Is the Peppol connection included in my current plan, or is there an extra charge?
3. Which Peppol Access Point do you use, and is it certified?
4. What will my Peppol ID be, and will you register me in the Peppol Directory?
5. When will this be available, and can I start before April 2029?
6. What happens if a customer is not yet on Peppol?
If you use simple invoicing apps, spreadsheets or Word templates, plan to move to software that can do this. Our guide on [checking Peppol support in your software](https://einvoices.uk/news/check-accounting-software-peppol-support) explains how to verify an answer.
## Five things to do now (all free)
- [ ] Confirm you are VAT-registered and in scope with the [scope checker](https://einvoices.uk/tools/am-i-in-scope).
- [ ] Check your own business name, address and VAT number are correct in your software.
- [ ] Check your main customers' VAT numbers with HMRC's [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number) service.
- [ ] Ask your software provider the six questions above.
- [ ] If you have an accountant or bookkeeper, ask them how they plan to support clients.
## Common worries
**"I only send ten invoices a month."** Volume does not change scope as things stand, but low volume makes the change simple.
**"My customer is a big company that already uses Peppol."** Good news: you may be able to start early. Some large buyers already receive invoices over Peppol, and NHS Supply Chain requires it of its suppliers.
**"I invoice the NHS or a council."** Public-sector buyers are already moving. NHS Supply Chain requires suppliers to invoice via Peppol, according to the consultation response. See our [NHS guide](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers).
## What to do now
You do not need to buy anything before the roadmap is published. Do the five free tasks above, then work through the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist) once the roadmap lands. Keep an eye on the [timeline](https://einvoices.uk/timeline). This is general information, not tax advice; follow HMRC guidance for your own situation.
## Frequently asked questions
### Do small businesses have to use e-invoicing in the UK?
If you are VAT-registered, plan on it. The government has confirmed e-invoicing will be mandatory for VAT invoices from April 2029 and has not announced a size threshold. Businesses that are not VAT-registered are not expected to be required to issue e-invoices.
### Is emailing a PDF invoice enough after 2029?
No. An e-invoice is structured data that software can read, sent over the Peppol network. A PDF attached to an email will not count for in-scope VAT invoices.
### Will there be an exemption for micro businesses?
None has been announced. The consultation response says the government sees low-cost options for small and micro businesses as a priority. Any exemptions or phasing would be set out in the roadmap due at Budget 2026.
### Can I use free invoicing software?
Possibly, if it can send and receive Peppol e-invoices. Ask the provider directly and get the answer in writing.
---
How to cite: "E-invoicing for small businesses in the UK: a plain guide", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-small-business-guide
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Do sole traders need e-invoicing? The 2029 rules explained
> Sole traders who are VAT-registered and invoice business customers will need e-invoicing from April 2029. Unregistered sole traders are not obliged.
- Canonical URL: https://einvoices.uk/news/e-invoicing-sole-traders-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Small business, 2029 mandate, VAT, Making Tax Digital
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Register for VAT](https://www.gov.uk/register-for-vat)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
**It depends on whether you are VAT-registered, not on being a sole trader.** If you are VAT-registered and you invoice other businesses or the public sector, you will need to send e-invoices from April 2029, because the government says all VAT invoices must be e-invoices from then. If you are not VAT-registered, you cannot issue VAT invoices, and the government has said you will not be obliged to adopt e-invoicing.
## The test that matters: VAT registration
The mandate is attached to the [VAT invoice](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing). Budget 2025 said the government "will require all VAT invoices to be issued in a specified electronic format from April 2029". There is no separate rule for sole traders, partnerships or limited companies.
The consultation response is direct about the smallest businesses: "many of the smallest businesses who are not required and choose not to be registered for VAT will not be obliged to adopt this technology."
You must register for VAT if your taxable turnover in the last 12 months goes over **£90,000**, or you expect it to go over £90,000 in the next 30 days. You can also register voluntarily below that level. If you have, the mandate treats you the same as a large VAT-registered business.
## Find your situation
| You are a sole trader who... | What it means for you |
|---|---|
| Is not VAT-registered | Not obliged to e-invoice. You may still receive e-invoices or be asked to use a customer's portal. |
| Is VAT-registered and invoices businesses (B2B) | In scope from April 2029. Your VAT invoices will need to be e-invoices. |
| Is VAT-registered and invoices councils, NHS bodies or departments (B2G) | In scope from April 2029. Many public bodies can already receive e-invoices. |
| Is VAT-registered and sells only to consumers | Likely little impact, as VAT invoices are not normally issued to consumers, but receipts are **not yet confirmed**. |
| Is VAT-registered and buys from VAT-registered suppliers | Expect to receive e-invoices: the government says VAT invoices are to be "issued and received electronically". |
| Is about to cross the £90,000 threshold | Plan for e-invoicing as part of registering. |
## A worked example
Sam is a self-employed electrician with a turnover of £120,000, so she is VAT-registered. She does work for homeowners and for two local building firms.
- Her invoices to the **building firms** are VAT invoices, so from April 2029 they will need to be e-invoices sent through her software. Some construction work also falls under the domestic reverse charge, which changes what goes on the invoice but not the need to send one.
- Her **homeowner** customers are not VAT-registered. She does not have to give them VAT invoices, so the mandate is unlikely to affect those bills. That has not been formally confirmed.
- Her **wholesaler** will send her e-invoices, which her software will need to receive.
Compare Tom, a self-employed copywriter with a turnover of £40,000 who is not VAT-registered. Tom does not issue VAT invoices and has no obligation to e-invoice. If a large client asks him to submit invoices through its system, that is a commercial request, not an HMRC requirement.
## Isn't this just Making Tax Digital again?
No, although they are linked. [Making Tax Digital](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital) for Income Tax started in April 2026 for sole traders and landlords with qualifying income over £50,000. According to HMRC's Transformation Roadmap update, it extends to those over £30,000 from April 2027 and over £20,000 from April 2028.
MTD is about record keeping and reporting to HMRC. E-invoicing is about the invoice that passes between you and your customer. You may meet both through the same accounting software, and the government says it is working with MTD software providers. It has also noted that several MTD providers aimed at small businesses already offer e-invoicing.
## How a sole trader will send e-invoices
You will not need to understand XML or networks. The UK will use [Peppol](https://einvoices.uk/news/what-is-peppol): the Tax update 2026 says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." In practice:
1. You raise the invoice in your accounting software as you do now.
2. The software, or a Peppol [Access Point](https://einvoices.uk/glossary#access-point) it works with, turns it into a structured e-invoice.
3. It is delivered to your customer's software, whichever provider they use.
The government has said it wants low-cost, easy-to-use products for small businesses. It has **not** announced grants or free software.
## What is not confirmed yet
- The exact UK e-invoice specification
- How receipts and simplified invoices will be treated
- Any [penalties](https://einvoices.uk/news/e-invoicing-penalties-uk) or soft-landing period
- Whether paper or PDF alternatives will be allowed in any circumstances
These are expected in the implementation roadmap due at Budget 2026 on 28 October 2026.
## What to do now
1. **Check whether you are VAT-registered**, or likely to be by 2029.
2. **List who you invoice**: businesses, the public sector or consumers.
3. **Ask your accounting software provider** whether it supports, or plans to support, Peppol e-invoicing.
4. **If you use spreadsheets or a word processor for invoices**, plan to move to accounting software before 2029.
5. **Talk to your accountant** about timing, especially if you also face MTD for Income Tax.
For the wider picture, read [who is in scope of the mandate](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) or use the [am I in scope tool](https://einvoices.uk/tools/am-i-in-scope).
## Frequently asked questions
### Do sole traders need to e-invoice from 2029?
If you are VAT-registered and issue VAT invoices, yes: the government says all VAT invoices must be e-invoices from April 2029. If you are not VAT-registered, you cannot issue VAT invoices and the government has said you will not be obliged to adopt e-invoicing.
### Is there an exemption for small sole traders?
No size-based exemption has been announced. The deciding factor is VAT registration, not whether you trade as a sole trader or a company.
### Is e-invoicing the same as Making Tax Digital for Income Tax?
No. MTD for Income Tax is about keeping digital records and sending quarterly updates to HMRC. E-invoicing is about how you send VAT invoices to customers and receive them from suppliers.
### I'm a VAT-registered sole trader who only sells to the public. Am I affected?
Probably much less. VAT invoices are not normally issued to consumers, and the treatment of receipts and simplified invoices has not yet been confirmed.
---
How to cite: "Do sole traders need e-invoicing? The 2029 rules explained", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-sole-traders-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing and the UK VAT gap: what the numbers say
> HMRC puts the 2024 to 2025 VAT gap at 6.6%, or £12.1 billion. Here is how e-invoicing could affect it, and why the UK's no-RTR model limits the effect at first.
- Canonical URL: https://einvoices.uk/news/e-invoicing-vat-gap
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: VAT, HMRC, Compliance, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [2. Tax gaps: VAT](https://www.gov.uk/government/statistics/measuring-tax-gaps/2-tax-gaps-vat)
- [Tax Gap 2024-25 estimated at 6.4%](https://www.gov.uk/government/news/tax-gap-2024-25-estimated-at-64)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Government sets out plans for 'e-invoicing' overhaul to cut paperwork](https://www.gov.uk/government/news/government-sets-out-plans-for-e-invoicing-overhaul-to-cut-paperwork)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
---
HMRC estimates the UK **VAT gap at 6.6% of theoretical VAT liability, or £12.1 billion, in the 2024 to 2025 tax year** (Measuring tax gaps 2026 edition, published 23 June 2026). E-invoicing is expected to help reduce it, mainly by cutting errors. But because the UK is not introducing real-time reporting in 2029, the effect will be more modest and slower than in countries where the tax authority sees every invoice.
## The official numbers
All figures are from HMRC's official statistics, Measuring tax gaps 2026 edition.
| Measure | Figure |
|---|---|
| Total UK tax gap, 2024 to 2025 | 6.4% (£59.2 billion) |
| VAT gap, 2024 to 2025 | 6.6% (£12.1 billion) |
| VAT gap, 2005 to 2006 (first year measured) | 14.1% (£11.9 billion) |
| VAT share of the total tax gap, 2024 to 2025 | 20% |
| VAT gap due to non-payment, 2024 to 2025 | £2.4 billion |
| VAT uncertainty rating | "Medium" |
The VAT gap in £ billion over recent years:
| Year | 2020-21 | 2021-22 | 2022-23 | 2023-24 | 2024-25 |
|---|---|---|---|---|---|
| VAT gap | 7.4 | 10.0 | 16.0 | 10.3 | 12.1 |
HMRC stresses that the VAT gap "is the difference between 2 very large numbers", so the trend matters more than any single year. Estimates are also revised: the 2024 to 2025 figure was first put at 6.2% (£11.4 billion) in November 2025, then 6.5% (£11.9 billion) in March 2026, before the 6.6% in June 2026.
## Where does the gap come from?
The VAT gap is calculated "top-down": HMRC estimates how much VAT should be paid based on national spending data, and compares it with receipts. That gives a total but "limited information on causes".
Across all taxes, HMRC's 2026 edition attributes the tax gap to behaviours including failure to take reasonable care (35%), error (16%) and evasion (12%). Criminal attacks account for 8%. When the consultation was launched in February 2025, the government said failure to take reasonable care and error together accounted for 22% of the **VAT** gap in 2022 to 2023.
That split explains why the government talks about e-invoicing mainly as an **error-reduction** tool.
## How e-invoicing could help
**Fewer manual errors.** The government's February 2025 press release cited research that 80% of businesses globally key in supplier invoice data manually, with about 10% of that data containing errors. Structured invoices remove the retyping. The consultation response says that reducing errors in manual processes "will help to close the tax gap by making it easier for businesses to get their taxes right."
**Consistent VAT data on both sides.** Supplier and buyer record the same VAT amount, rate and VAT number, which should reduce mismatches between output tax and input tax claims.
**Harder to fake invoices.** Exchange over a network with identified participants makes fake or altered invoices harder, though not impossible.
**A foundation for later.** If HMRC later added reporting, the data would already exist in a standard form. See [Will HMRC require real-time reporting?](https://einvoices.uk/news/real-time-reporting-uk).
## Why the effect may be limited at first
- **No reporting to HMRC in 2029.** HMRC will not receive invoice data as part of the mandate at launch, so it cannot match supplier and buyer records in real time.
- **B2C is mostly outside.** VAT invoices are generally not issued for consumer sales, and HMRC's VAT data show that more than two thirds of theoretical VAT liability comes from household spending.
- **Fraud is not only invoices.** Non-payment (£2.4 billion of the 2024 to 2025 VAT gap) and organised criminal attacks need other tools.
## The comparison with clearance countries
Respondents to the consultation cited Italy's centralised system, reported to have generated €6 billion a year in extra revenue. That is a figure quoted by respondents, not an HMRC estimate. The government's response was that many centralised regimes were set up "in the context of tackling much more significant tax gaps than the UK's, which is comparatively low." See [Clearance vs decentralised](https://einvoices.uk/news/decentralised-vs-clearance-model).
## How much will e-invoicing raise?
**Not published.** The consultation said any Exchequer impact would be estimated after the policy was designed and "subject to scrutiny by the Office for Budget Responsibility." Budget 2025 included e-invoicing in its package to modernise the tax system, alongside measures that, taken together, raise £10 billion a year by 2029 to 2030 from closing the tax gap. We have not found a separate published revenue figure for the e-invoicing mandate itself. Treat any number you see quoted with caution unless it comes from HMRC or the OBR.
## What this means for your business
For a compliant business, the VAT gap is not your problem, but the remedies affect you. Expect stricter data validation on invoices, more automated VAT checks, and HMRC prompts in VAT software from April 2027, as announced at Budget 2025. The upside is fewer errors in your own VAT returns and fewer queries.
## What to do now
- Clean up the data that drives VAT: customer and supplier VAT numbers, VAT category codes, and reverse charge flags. See [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
- Watch for an Exchequer estimate in the Budget 2026 documents on 28 October 2026.
- Read the [mandate guide](https://einvoices.uk/mandate) for the wider picture.
## Frequently asked questions
### What is the UK VAT gap?
HMRC's Measuring tax gaps 2026 edition estimates the VAT gap at 6.6% of theoretical VAT liability, or £12.1 billion, in the 2024 to 2025 tax year.
### Will e-invoicing close the VAT gap?
The government says the mandate will support efforts to close the tax gap, mainly by reducing errors. It has not published a separate estimate of how much VAT e-invoicing will raise, and without real-time reporting HMRC will not see invoices directly at launch.
### Why didn't the UK choose a system like Italy's?
The government said many countries with centralised systems were tackling much larger tax gaps than the UK's, which it described as comparatively low.
---
How to cite: "E-invoicing and the UK VAT gap: what the numbers say", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-vat-gap
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# VAT groups and e-invoicing: how the 2029 mandate applies
> A UK VAT group's invoices to outside customers are VAT invoices and in scope from April 2029. Intra-group supplies are normally disregarded. Here's the detail.
- Canonical URL: https://einvoices.uk/news/e-invoicing-vat-groups
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Finance teams, Peppol, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Group and divisional registration (VAT Notice 700/2)](https://www.gov.uk/guidance/group-and-divisional-registration-vat-notice-7002)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Budget 2025: Overview of tax legislation and rates (OOTLAR)](https://www.gov.uk/government/publications/budget-2025-overview-of-tax-legislation-and-rates-ootlar/budget-2025-overview-of-tax-legislation-and-rates-ootlar)
- [Peppol Service Metadata Locator (SML) specification 1.3.0](https://docs.peppol.eu/edelivery/sml/Peppol-EDN-Service-Metadata-Locator-1.3.0-2025-02-06.pdf)
---
**Yes, VAT groups are in scope.** A VAT group is treated as a single taxable person with one VAT registration number, so its VAT invoices to customers outside the group are covered by the government's requirement that all VAT invoices are e-invoices from April 2029. Supplies *between* group members are normally disregarded for VAT and do not need VAT invoices, which keeps most internal invoicing outside the mandate's core.
The harder questions for groups are practical: identifiers, routing and which entity's name appears on the e-invoice.
## How VAT grouping works
HMRC's [Notice 700/2](https://www.gov.uk/guidance/group-and-divisional-registration-vat-notice-7002) sets out the basics:
- Eligible persons can apply to be treated as a **single taxable person**. Registration is in the name of the **representative member**, which files one VAT return for the group.
- Previous VAT numbers are cancelled and **one group number** is issued. "This registration number must then be used by all the group members."
- Supplies by a member to a third party are treated as made by the representative member, and supplies received from third parties are treated as received by it.
- All members are **jointly and severally liable** for the group's VAT.
- Supplies between members are normally disregarded, so "VAT need not be accounted for on these supplies and no VAT invoices must be issued in respect of them."
The notice also says that references to the UK in it include the Isle of Man.
## What is in scope for a group
| Invoice flow | VAT invoice required today? | Mandate position |
|---|---|---|
| Group member to an outside VAT-registered customer | Yes, showing the group VAT number | **In scope** from April 2029 |
| Group member to a public-sector body | Yes | **In scope** (B2G) |
| Outside supplier to a group member | Yes, to the group | **In scope**: the group should expect to receive e-invoices |
| Member to member (disregarded supply) | No | Outside the VAT-invoice core. Treatment of commercial intercompany invoices **not confirmed** |
| Services covered by the section 43(2A) intra-group charge | A charge is calculated even without an invoice | **Not confirmed** |
| Goods in Northern Ireland supplied between members not both established there | Disregard does not apply; VAT due | **Not confirmed** |
Many groups raise internal invoices for transfer pricing, statutory accounts or cost allocation even where VAT disregards the supply. Those documents are not VAT invoices. Nothing announced so far brings them into the mandate, but watch for the roadmap's definition of what must be an e-invoice.
## The identifier problem
The UK will use [Peppol](https://einvoices.uk/news/what-is-peppol). The Tax update 2026 says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." Each business on Peppol is found by its [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk). For UK businesses the obvious choice is the VAT number, under scheme code 9932.
For a VAT group, that creates a problem. Peppol's Service Metadata Locator specification states that "each participant identifier is registered with one and only one SMP". If ten companies share one VAT number, only one Peppol registration can use the VAT-number ID. Customers who route invoices by VAT number would reach one inbox for the whole group.
Groups have a few options. None has been endorsed by HMRC for the mandate:
1. **One group inbox** using the group VAT number, with internal routing by legal entity, buyer reference or purchase order.
2. **Separate identifiers per entity** using another scheme in the Peppol code lists, such as a Global Location Number (scheme 0088), alongside or instead of the VAT-number ID.
3. **A hybrid**: the VAT-number ID for the main trading entity, other IDs for the rest.
Whatever you choose, suppliers must be able to find the right entity. Publish your identifiers and keep them in supplier onboarding packs. Our guide to [Peppol participant IDs](https://einvoices.uk/news/peppol-participant-id-uk) goes deeper.
Whether the UK will publish identifier rules specifically for VAT groups is **not yet confirmed**.
## Whose name goes on the e-invoice?
HMRC's guidance says the group VAT number must be used by all members. In practice, many members issue invoices in their own legal name with the group VAT number. In a structured e-invoice the seller's legal name, VAT identifier and legal registration identifier are separate fields, so you need to decide, entity by entity:
- which legal name appears as the seller
- that the **group** VAT number appears as the seller VAT identifier
- which company registration number appears, if any
Check that your ERP's master data matches. Mismatches between names, VAT numbers and Peppol IDs are a common reason for rejected or misrouted e-invoices.
## Joining or leaving a group
Changes in membership affect e-invoicing directly:
- A company joining a group stops using its own VAT number, which cancels any Peppol ID based on that number.
- A company leaving gets its own VAT number again and needs its own e-invoicing set-up from that date.
- Customers and suppliers must be told, because their routing will change.
Build these steps into your VAT group change checklist.
## Recent change to cross-border grouping
Separately, Budget 2025 removed the requirement to consider Revenue and Customs Brief 18/2015 for cross-border transactions between members of a VAT group, from 26 November 2025. This returns the UK to "unmodified whole-entity VAT grouping". It does not change the e-invoicing position above, but groups with overseas branches should review intra-group flows with their advisers.
## What to do now
1. **Map every entity** in the group, its legal name, the group VAT number and the systems that issue its invoices.
2. **Decide your Peppol identifier strategy** before suppliers start asking.
3. **List intercompany invoice flows** and note which are disregarded for VAT.
4. **Flag Northern Ireland and overseas members** for specialist review.
5. **Track the roadmap** at Budget 2026 for any VAT-group-specific rules.
See also [who is in scope](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) and the [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### Does the e-invoicing mandate apply to VAT groups?
Yes. A VAT group is a single taxable person with one VAT number, and its VAT invoices to customers outside the group fall under the requirement that all VAT invoices are e-invoices from April 2029.
### Do intra-group invoices need to be e-invoices?
HMRC says supplies between members of the same VAT group are normally disregarded and no VAT invoices must be issued for them. Some exceptions exist, and the mandate's treatment of internal invoices has not been specifically confirmed.
### Can every company in a VAT group use the group VAT number as its Peppol ID?
Not easily. In Peppol each participant identifier is registered with only one SMP, so several group companies cannot each register the same VAT-number ID separately. Groups will need an identifier plan.
### Can a VAT group include Northern Ireland members?
Yes. HMRC says UK VAT groups can include members established in Northern Ireland, although special rules apply to goods located in or moving to Northern Ireland.
---
How to cite: "VAT groups and e-invoicing: how the 2029 mandate applies", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-vat-groups
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing vs EDI: what UK businesses need to know
> EDI is an older, bilateral way to swap structured documents. Peppol e-invoicing is an open network. Here's how they differ and what 2029 may mean for EDI users.
- Canonical URL: https://einvoices.uk/news/e-invoicing-vs-edi
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, Technical, 2029 mandate, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [About - OpenPeppol](https://peppol.org/about/)
---
EDI (electronic data interchange) and e-invoicing both send invoices as structured data rather than PDFs. The difference is the plumbing: **EDI is usually a private, point-to-point arrangement** between trading partners, while **Peppol e-invoicing is an open network** where you connect once and can reach anyone else on it.
That matters because the UK's 2029 mandate will run on Peppol. If you invoice big customers by EDI today, you need to know whether that will still count.
## What EDI is
EDI is the exchange of business documents between computer systems in an agreed structured format. It has been around since long before Peppol. The UN/EDIFACT standard, described in the government's consultation response as an international EDI standard published by the United Nations Economic Commission for Europe in 1987, is one of the best known. UK retail has its own long-standing EDI formats too.
A typical EDI set-up:
- The buyer (often a large retailer, manufacturer or distributor) specifies the message format and the rules.
- Each supplier is mapped and tested individually, often through an EDI provider or value-added network (VAN).
- Orders, despatch advice and invoices flow between the two systems automatically.
EDI works very well for high-volume relationships. Its weakness is that each connection is a separate project, and a supplier with ten EDI customers may face ten sets of requirements.
## What Peppol e-invoicing is
Peppol is an international network and set of specifications, governed by OpenPeppol, a non-profit association under Belgian law. It began in 2008 as a European Commission-funded pilot.
Instead of building a link per customer, each business connects to one certified [Access Point](https://einvoices.uk/glossary#access-point). Invoices travel in the [four-corner model](https://einvoices.uk/news/four-corner-model-explained): supplier, supplier's Access Point, buyer's Access Point, buyer. The invoice format, [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide), is a core invoice usage specification of the European standard [EN 16931](https://einvoices.uk/news/en-16931-explained), and the network uses a directory and lookup service so the sender can find where to deliver.
On 23 June 2026 the government announced that "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
## Side by side
| | Traditional EDI | Peppol e-invoicing |
|---|---|---|
| Connection | Point-to-point or via a VAN, set up per trading partner | One Access Point reaches every Peppol participant |
| Who sets the format | Often the buyer, by agreement | Common specification (Peppol BIS Billing 3.0, based on EN 16931) |
| Typical syntax | EDIFACT, older UK retail formats, X12 and others | UBL (CII also supported by the specification) |
| Onboarding a new partner | Mapping and testing each time | Look up their Peppol ID and send |
| Documents | Orders, despatch advice, invoices, more | Invoices and credit notes; Peppol also has order and other messages |
| UK 2029 status | Not yet confirmed | Confirmed as the core network |
## Is an EDI invoice an e-invoice?
In a technical sense, yes: the government's own definition of e-invoicing is "the digital exchange of invoice data directly between buyers' and suppliers' financial systems". EDI invoices fit that description. They are a very different thing from a PDF.
Whether an EDI invoice will satisfy the **legal** mandate from April 2029 is a separate question, and the answer is **not yet confirmed**. Three things point to the issues the roadmap must settle:
- **Peppol is the core network.** The June 2026 announcement said the government "will continue to engage with stakeholders regarding the role of legacy systems which cannot interoperate in the future system."
- **Standards are still being designed.** The consultation response said the government would review whether to adopt an existing standard or design a UK-specific one.
- **Flexibility was requested.** One respondent recommended Peppol as the default channel "but allowing alternative channels by mutual agreement". The government has not said whether it will accept that.
Many respondents also flagged the difficulty of mixed formats. The consultation response listed "different standards across systems" such as UBL and EDIFACT as a barrier to seamless exchange.
## What this could mean for EDI users
We do not know the final rules, so treat these as scenarios, not predictions:
1. **EDI allowed by agreement, with Peppol as default.** Existing EDI flows continue between partners who agree, but every business must be able to send and receive via Peppol.
2. **Peppol required for VAT invoices, EDI kept for other documents.** Orders and despatch advice stay on EDI; invoices move to Peppol.
3. **Bridging.** Many EDI providers already convert between formats. An EDI provider that is also a Peppol Access Point could convert your outbound EDI invoice into a Peppol invoice.
Whichever applies, the Peppol format may require data your EDI messages do not carry, or carry differently, such as VAT category codes or buyer references.
## Questions to ask your EDI provider
- Are you a certified Peppol Access Point, or do you partner with one?
- Can you convert our existing EDI invoices to Peppol BIS Billing 3.0, and receive Peppol invoices into our system?
- How will you handle validation errors and invoice responses?
- What is your plan once the UK specification is published?
## What to do now
- List which customers and suppliers you exchange EDI invoices with, and in which formats.
- Check which of your trading partners already have a Peppol ID. See [Peppol directory lookup](https://einvoices.uk/news/peppol-directory-lookup-uk).
- Do not rip out working EDI yet. Wait for the roadmap at Budget 2026 on 28 October 2026 before making big changes.
- Read [What is Peppol?](https://einvoices.uk/news/what-is-peppol) and [How to choose a Peppol Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
## Frequently asked questions
### Is EDI the same as e-invoicing?
EDI invoices are a form of structured electronic invoice, but EDI usually runs over point-to-point links agreed between two trading partners. Peppol e-invoicing uses an open network where any participant can reach any other through their provider.
### Will EDI invoices be allowed after April 2029?
Not yet known. The government has confirmed Peppol as the core interoperability network and said it will keep engaging on legacy systems that cannot interoperate. The roadmap due at Budget 2026 should say more.
### Do I have to stop using EDI for orders and despatch advice?
Nothing announced so far covers orders or delivery notes. The mandate is about VAT invoices.
---
How to cite: "E-invoicing vs EDI: what UK businesses need to know", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-vs-edi
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# E-invoicing vs Making Tax Digital: what's the difference?
> MTD is about keeping digital VAT records and filing returns through software. E-invoicing, from April 2029, is about how VAT invoices travel between businesses.
- Canonical URL: https://einvoices.uk/news/e-invoicing-vs-making-tax-digital
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Making Tax Digital, 2029 mandate, VAT, HMRC
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Less than one week to go for MTD](https://www.gov.uk/government/news/less-than-one-week-to-go-for-mtd)
- [VAT Notice 700/22: Making Tax Digital for VAT](https://www.gov.uk/government/publications/vat-notice-70022-making-tax-digital-for-vat/vat-notice-70022-making-tax-digital-for-vat)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
---
Making Tax Digital (MTD) and e-invoicing are two different rules. **MTD for VAT** is about how you keep VAT records and send your VAT return to HMRC. **E-invoicing**, mandatory for VAT invoices from April 2029, is about how invoices travel between you and your customers or suppliers.
They overlap because both depend on software, and the same software will probably do both jobs. But being MTD-ready does not make you e-invoicing-ready.
## The short version
| | Making Tax Digital for VAT | E-invoicing mandate |
|---|---|---|
| What it covers | Keeping digital VAT records and filing VAT returns through compatible software | Issuing and receiving VAT invoices as structured data |
| Who it is between | Your business and HMRC | Your business and other businesses or public bodies |
| When | Since April 2019 (turnover above £85,000); all VAT-registered businesses from 1 April 2022 | From April 2029 |
| Data goes to HMRC? | Yes, VAT return figures | Not at launch: no real-time reporting in 2029 |
| Format | Any compatible software or bridging software | A specified electronic format, exchanged over Peppol |
| Status | In force | Confirmed in principle; detailed rules due in the roadmap at Budget 2026 |
## What MTD for VAT requires
HMRC's press release of 28 March 2022 put it plainly: "All VAT-registered businesses must use MTD for VAT for their first VAT return starting on or after 1 April 2022." Businesses with taxable turnover above £85,000 had already been required to follow MTD since April 2019.
Under [VAT Notice 700/22](https://www.gov.uk/government/publications/vat-notice-70022-making-tax-digital-for-vat/vat-notice-70022-making-tax-digital-for-vat), you must keep certain records digitally in functional compatible software, and data moving between programs must travel through "digital links". Copying and pasting does not count.
Notice what MTD does **not** say: it does not dictate the format of the invoices you send to customers. Today you can still send a PDF, or even a paper invoice, and comply with MTD as long as the records feeding your VAT return are digital. HMRC's [electronic invoicing notice (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063) currently says it is up to you whether you issue paper or electronic VAT invoices.
MTD is also expanding beyond VAT. MTD for Income Tax started in April 2026 for sole traders and landlords with qualifying income over £50,000, with the threshold dropping to £30,000 from April 2027 and £20,000 from April 2028, according to HMRC's Transformation Roadmap update 2026.
## What the e-invoicing mandate requires
The Budget 2025 document says: "The government will require all VAT invoices to be issued in a specified electronic format from April 2029." That covers business-to-business ([B2B](https://einvoices.uk/glossary#b2b-b2g-b2c)) and business-to-government ([B2G](https://einvoices.uk/glossary#b2b-b2g-b2c)) VAT invoices.
An [e-invoice](https://einvoices.uk/glossary#e-invoice) is structured data the buyer's system can read automatically. The consultation was explicit that PDFs, Word files, images, HTML invoices and faxed or scanned invoices are **not** e-invoices. On 23 June 2026 the government announced that Peppol will be "the core interoperability network for e-invoicing in the UK".
So where MTD changed what happens **after** an invoice exists, e-invoicing changes the invoice itself.
## How the two fit together
The government sees them as complementary. The consultation document said decentralised e-invoicing models "can be complementary to Making Tax Digital and further build on the business and tax benefits observed in the digitalisation of business records."
In practice, the link works like this:
1. Your software creates an e-invoice and sends it over Peppol.
2. Your customer's software receives it and posts it straight into their ledger, with no retyping.
3. Both sides now have accurate digital records of the same transaction.
4. Those records feed each business's MTD VAT return, as they do today.
The government also expects MTD software providers to be a main route to e-invoicing. The consultation response noted it is "aware of several MTD providers focused on the small business market that are already able to provide e-invoicing services."
## Where they differ in an important way: HMRC's view
With MTD, HMRC receives your VAT return figures through an API. With e-invoicing at launch, HMRC **does not** receive your invoices. The consultation response says the government "will not introduce it [real-time reporting] alongside the e-invoicing mandate in 2029", and that any later reporting would build on the e-invoicing infrastructure. See [Will HMRC require real-time reporting?](https://einvoices.uk/news/real-time-reporting-uk).
Separately, the Budget 2025 document announced real-time digital prompts in VAT filing software from April 2027. Those prompts are about catching errors in VAT returns. They are not invoice reporting.
## Who is caught by which rule?
- **VAT-registered business:** already within MTD for VAT; within the e-invoicing mandate from 2029 for VAT invoices it issues.
- **Not VAT-registered:** outside MTD for VAT. The consultation response says businesses not required to register, and that choose not to, "will not be obliged to adopt this technology." You may still receive e-invoices from suppliers. See [E-invoicing for non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
- **Sole trader in MTD for Income Tax only:** MTD for Income Tax is about self-employment and property income records. Whether you must e-invoice depends on whether you are VAT-registered.
## What is not yet confirmed
- The exact invoice specification (for example, whether the UK adopts [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) as it stands or a UK [CIUS](https://einvoices.uk/glossary#cius)).
- How software and Access Points will be accredited, and whether HMRC will run a recognition list like the MTD software list.
- Penalties for e-invoicing failures. Respondents asked whether these would mirror MTD; the government has not said.
These are expected to be covered, at least in outline, in the roadmap due at Budget 2026 on 28 October 2026.
## What to do now
- Ask your current MTD software provider whether it supports sending **and** receiving e-invoices over Peppol, and what it plans for 2029.
- Do not assume an "MTD-compatible" label covers e-invoicing.
- If you use bridging software with spreadsheets, start planning: e-invoices need to be generated and received by a system, not typed into a spreadsheet.
- Read our guides to [checking your software's Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support) and the [UK e-invoicing readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist), and keep an eye on the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Is e-invoicing part of Making Tax Digital?
No. They are separate requirements. MTD for VAT covers digital records and filing VAT returns through software; the e-invoicing mandate covers the format VAT invoices are exchanged in from April 2029. The government has said decentralised e-invoicing is complementary to MTD.
### If my software is MTD-compatible, does it support e-invoicing?
Not necessarily. MTD compatibility means the software can keep digital records and file VAT returns with HMRC. Sending and receiving e-invoices over Peppol is a different capability, so ask your provider directly.
### Will e-invoices be sent to HMRC like MTD VAT returns?
Not at launch. The government has said real-time reporting will not be introduced alongside the 2029 mandate. VAT will still be reported through your VAT return.
---
How to cite: "E-invoicing vs Making Tax Digital: what's the difference?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/e-invoicing-vs-making-tax-digital
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# EN 16931 explained: the e-invoice standard behind Peppol
> EN 16931 is the European standard defining what an e-invoice contains. What it is, how BT codes and BR rules work, how Peppol builds on it, and the UK angle.
- Canonical URL: https://einvoices.uk/news/en-16931-explained
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Technical, Peppol, 2029 mandate, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Navigating the eInvoicing standard documentation – European Commission](https://ec.europa.eu/digital-building-blocks/sites/display/DIGITAL/Navigating%2Bthe%2BeInvoicing%2Bstandard%2Bdocumentation)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary – GOV.UK](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
**EN 16931** is the European standard for electronic invoicing. Its core part, EN 16931-1, defines a **semantic data model**: a numbered list of the information an e-invoice can carry (business terms such as BT-1 Invoice number), plus business rules (such as BR-CO-15) that say what is mandatory and how the numbers must add up. It is not a file format. The data is written in an XML syntax, usually UBL 2.1 or UN/CEFACT CII. Peppol BIS Billing 3.0, the format used on the network the UK has chosen, is built directly on it.
## Why it exists
EN 16931 was written by the European standards body CEN under the EU e-invoicing directive for public procurement (Directive 2014/55/EU). The European Commission says public bodies in scope must be able to receive and process e-invoices that follow it, in either of its two listed syntaxes. The aim was one shared definition of an invoice, so a buyer could process e-invoices from any supplier without one-off mappings.
## The parts
The Commission's guide lists the documents in the EN 16931 family:
| Document | What it covers |
|---|---|
| EN 16931-1:2017 | Semantic data model of the core elements of an electronic invoice |
| CEN/TS 16931-2:2017 | List of syntaxes that comply with EN 16931-1 |
| CEN/TS 16931-3-1 | Methodology for syntax bindings |
| CEN/TS 16931-3-2 | Syntax binding for UBL 2.1 invoice and credit note |
| CEN/TS 16931-3-3 | Syntax binding for UN/CEFACT XML Industry Invoice D16B |
| CEN/TS 16931-3-4 | Syntax binding for UN/EDIFACT INVOIC D16B |
| CEN/TR 16931-4 | Interoperability at the transmission level |
| CEN/TR 16931-5 | Using sector or country extensions with EN 16931-1 |
| CEN/TR 16931-6 | Results of testing the standard |
Only Part 1 is the European Norm (EN). The others are technical specifications (TS) and reports (TR). In the UK the standard is published by BSI as BS EN 16931.
## Business terms: the BT and BG codes
The semantic model gives every piece of information an ID:
- **BT** (business term): one item of data. BT-1 Invoice number, BT-2 Issue date, BT-31 Seller VAT identifier, BT-110 Invoice total VAT amount, BT-151 Invoiced item VAT category code.
- **BG** (business group): a group of terms. BG-4 Seller, BG-23 VAT breakdown, BG-25 Invoice line.
These IDs are the common language between syntaxes. BT-110 is `cac:TaxTotal/cbc:TaxAmount` in UBL and a different path in CII, but it means the same thing. When a validator says "BT-112", map it to your syntax using the binding. Peppol publishes the UBL paths for every term.
## Business rules: the BR codes
EN 16931 also defines business rules, published as Schematron by the European Commission's [eInvoicing-EN16931 project on GitHub](https://github.com/ConnectingEurope/eInvoicing-EN16931). They follow a naming pattern:
| Prefix | Covers | Example |
|---|---|---|
| BR-01 to BR-65 | Mandatory content and basic conditions | BR-16: "An Invoice shall have at least one Invoice line (BG-25)" |
| BR-CO | Conditions and calculations | BR-CO-15: "Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110)." |
| BR-S, BR-Z, BR-E, BR-AE, BR-O, BR-G, BR-IC… | Rules per VAT category | BR-E-10: exempt breakdowns need a reason |
| BR-CL | Code lists | BR-CL-18: "Invoice tax categories MUST be coded using UNCL5305 code list" |
| BR-DEC | Decimal places | BR-DEC-23: line net amount max 2 decimals |
The same rule IDs apply whatever the syntax. Each syntax also has its own structural rules: for UBL, `UBL-SR`, `UBL-CR` and `UBL-DT`.
See these in action in [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors) and [BR-CO-15 explained](https://einvoices.uk/news/peppol-validation-error-br-co-15).
## Code lists
EN 16931 does not invent its own codes. It points to existing lists: ISO 4217 for currencies, ISO 3166 for countries, UN/CEFACT 5305 for VAT categories (S, Z, E, AE, O and others), UN/CEFACT 1001 for document types (380 invoice, 381 credit note), UN/ECE Recommendation 20 for units (HUR hours, C62 "one"), and the VATEX list for exemption reasons. Our [UK VAT category codes guide](https://einvoices.uk/news/uk-vat-category-codes-peppol) shows how UK VAT treatments map to these.
## CIUS: how Peppol builds on EN 16931
EN 16931 is deliberately broad. A **[CIUS](https://einvoices.uk/glossary#cius)** (core invoice usage specification) narrows it for a community. It can make optional fields mandatory, restrict code lists or add rules, but it cannot add new fields. A conforming CIUS invoice is always a valid EN 16931 invoice. Adding new fields needs an **extension**, the subject of CEN/TR 16931-5.
[Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) is a CIUS. Its specification identifier says so:
```text
urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0
```
On top of EN 16931, Peppol adds rules such as **PEPPOL-EN16931-R003** ("A buyer reference or purchase order reference MUST be provided."), **R010** (buyer electronic address required) and country-specific rules for several countries, but none for the UK. A Peppol invoice is validated against both the EN 16931 rules and the Peppol rules.
## EN 16931 in the UK today
**Confirmed:**
- For public procurement, "all bodies covered by the Public Procurement Act 2023 are required to accept e-invoices which comply with BS EN16931", according to the government's consultation response, which also notes that NHS Supply Chain requires its suppliers to e-invoice through Peppol. See [public sector e-invoicing regulations](https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019).
- Mandatory e-invoicing for B2B and B2G VAT invoices starts on 1 April 2029.
- "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK" (Tax update 2026, 23 June 2026).
**Not yet confirmed:** the data standard for the 2029 mandate. The consultation response says the government "will work closely with stakeholders to review the risks and benefits of adopting an existing standard or designing a UK-specific standard", and its technical work "will encapsulate designing potential extensions to the standardised invoice to accommodate sector specific needs". Respondents strongly favoured existing standards "like EN16931". A UK CIUS of EN 16931 (or of Peppol BIS) would be a natural outcome, but that is **our reading, not a decision**. The roadmap is due at Budget 2026 on 28 October 2026.
## What it means for you
- **Finance teams:** you don't need to read the standard. You do need software that produces EN 16931-compliant invoices, and clean data to feed it. See the [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
- **Developers:** map your invoice model to EN 16931 business terms, not directly to one XML format. Then UBL, CII or a future UK specification is a binding change, not a rebuild. Start with [UBL vs CII](https://einvoices.uk/news/ubl-vs-cii-uk) and our [UK XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
- **Everyone:** watch the [timeline](https://einvoices.uk/timeline) for the UK specification.
## Frequently asked questions
### What is EN 16931?
EN 16931 is the European standard for electronic invoicing. Part 1 defines a semantic data model: the core information an e-invoice can contain, such as the invoice number, parties, lines, VAT breakdown and totals, plus the business rules that tie them together.
### Is EN 16931 a file format?
No. It defines the content, not the file. The content is expressed in an XML syntax, either UBL 2.1 or UN/CEFACT CII D16B.
### Does EN 16931 apply in the UK?
It is published in the UK as BS EN 16931. Public bodies covered by the Public Procurement Act 2023 must accept e-invoices that comply with it. Whether the 2029 B2B mandate will use it has not been confirmed.
### What is the relationship between EN 16931 and Peppol?
Peppol BIS Billing 3.0 is a specification built on EN 16931. Every Peppol invoice must meet the EN 16931 rules plus Peppol's own extra rules.
---
How to cite: "EN 16931 explained: the e-invoice standard behind Peppol", einvoices.uk, 20 October 2026, https://einvoices.uk/news/en-16931-explained
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# The five-corner model explained: will the UK use it?
> A five-corner model adds the tax authority as a fifth corner that receives invoice data. The UK starts in 2029 with four corners and no real-time reporting.
- Canonical URL: https://einvoices.uk/news/five-corner-model-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Four-corner model, Peppol, HMRC, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Peppol Continuous Transaction Controls Reference Document](https://peppol.org/wp-content/uploads/2023/02/Peppol-CTC-Reference-Document-v1.0.pdf)
- [Peppol model for Tax Data Document](https://docs.peppol.eu/poac/om/om-tdd/bis/)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
A five-corner model is the familiar Peppol four-corner exchange **plus a fifth corner: the tax authority**. As an invoice passes between the supplier's and buyer's service providers, one or both providers also send the invoice data to a government platform. The UK is **not** using a five-corner model at launch in April 2029, but it is the obvious route if HMRC later wants invoice data.
## Four corners first
In the [four-corner model](https://einvoices.uk/news/four-corner-model-explained):
1. **Corner 1:** the supplier creates the invoice in its software.
2. **Corner 2:** the supplier's [Access Point](https://einvoices.uk/glossary#access-point) validates and sends it over Peppol.
3. **Corner 3:** the buyer's Access Point receives it.
4. **Corner 4:** the buyer's software imports it.
The government announced on 23 June 2026 that Peppol "will be the core interoperability network for e-invoicing in the UK", and the UK has chosen this decentralised approach. See [Four-corner model explained](https://einvoices.uk/news/four-corner-model-explained).
## Adding the fifth corner
In OpenPeppol's design for continuous transaction controls (Peppol CTC), set out in its September 2021 reference document, the sender's provider (C2) validates the invoice "in real-time, ensuring compliance with local requirements", then reports "the complete business document or a tax subset thereof (Tax Data Document or TDD)" to a Corner 5 service provider designated by the tax authority.
The reference document defines Corner 5 as "government-controlled infrastructure, which receives data from C2 and/or C3".
It describes two variants:
- **Simplex:** only the seller's provider reports.
- **Duplex:** the buyer's provider also reports receipt.
Peppol already publishes live Tax Data Document specifications. One example, for Oman, describes how an issuer's provider "creates and sends a TDD document, reporting the issued invoice" to the tax authority through its service provider.
## Four vs five corners
| | Four-corner | Five-corner |
|---|---|---|
| Invoice exchange | Provider to provider over Peppol | The same |
| Tax authority receives data | No | Yes, in real time or near real time |
| What is reported | Nothing | Full invoice or a tax data subset |
| Who reports | n/a | Service providers (corners 2 and/or 3) |
| Effect on the business | Send and receive through your provider | Largely the same; provider handles reporting |
| UK from April 2029 | **Yes** | **No** |
## Where the UK stands
**Confirmed:**
- Decentralised model; Peppol is the core network.
- "The government will continue to explore the potential benefits of RTR but will not introduce it alongside the e-invoicing mandate in 2029." (Consultation response, 26 November 2025.)
- Any future real-time reporting "will build on e-invoicing infrastructure".
**Not confirmed:**
- Whether a future UK reporting system would use the Peppol five-corner model, a different data feed, or anything at all.
- Any timetable. The government said reporting would come, if at all, "once e-invoicing use was well established."
The consultation response's own glossary describes the five-corner model as "one way to incorporate RTR into a decentralised e-invoicing model". Several multinational respondents recommended Peppol "on either a four-corner or five-corner model". So the five-corner model is clearly part of the government's thinking, but it has made no decision.
## Why it matters even without a decision
Choosing a decentralised Peppol network now makes a five-corner extension technically straightforward later. OpenPeppol's reference document says: "From a Tax Subject perspective, there will be limited changes and deviations between the Peppol 4-corner and Peppol CTC 5-corner models".
For UK businesses, that suggests two things:
- **Little rework.** If HMRC later added a fifth corner, most of the effort would fall on Access Points, not on you.
- **Data quality matters now.** Whatever you send over Peppol is exactly what would be reported. Errors in VAT codes or VAT numbers would become visible to HMRC.
## What about cross-border trade?
The EU's VAT in the Digital Age (ViDA) package introduces digital reporting for intra-EU business supplies from 1 July 2030. OpenPeppol's CTC reference document also sets out a harmonised approach for cross-border trade. The UK is outside the EU, so ViDA's reporting does not apply to UK domestic invoices. Some EU countries' domestic systems use reporting too. See [UK businesses selling to EU customers](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## What to do now
- Prepare for a four-corner exchange in 2029. Do not pay for "HMRC reporting" features nobody has specified.
- Choose providers that can show they already operate where reporting exists, which suggests they could adapt.
- Read [Will HMRC require real-time reporting?](https://einvoices.uk/news/real-time-reporting-uk) and the glossary entry for the [five-corner model](https://einvoices.uk/news/five-corner-model-uk).
## Frequently asked questions
### What is the five-corner model?
It is the four-corner Peppol exchange (supplier, supplier's provider, buyer's provider, buyer) plus a fifth corner: the tax authority, which receives invoice data from the providers in real time or near real time.
### Will the UK use a five-corner model in 2029?
No. The UK will start with a decentralised exchange over Peppol and has said real-time reporting will not be introduced alongside the 2029 mandate.
### Would a five-corner model change how I send invoices?
Mostly not. Reporting would be handled by service providers. OpenPeppol says that from the taxpayer's perspective there are limited changes between the four-corner and five-corner models.
---
How to cite: "The five-corner model explained: will the UK use it?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/five-corner-model-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# The four-corner model of e-invoicing explained
> In the four-corner model, supplier and buyer each use their own service provider, and the providers exchange invoices over Peppol. How it works in the UK.
- Canonical URL: https://einvoices.uk/news/four-corner-model-explained
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Four-corner model, Peppol, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Peppol Network Policy v1.0.0](https://docs.peppol.eu/edelivery/policies/Peppol%20Network%20Policy%201.0.0%202026-07-02.pdf)
- [About - OpenPeppol](https://peppol.org/about/)
- [NHS eProcurement Strategy (Department of Health, April 2014)](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/344574/NHS_eProcurement_Strategy.pdf)
- [Peppol Message Level Status | Peppol MLS Specification](https://docs.peppol.eu/edelivery/specs/mls/v1.1.0/mls/spec/)
---
The **four-corner model** is the way most modern e-invoicing networks, including Peppol, are organised. The supplier and the buyer each pick their **own** service provider, and the providers exchange invoices with each other over a common network. The UK's confirmed approach, a decentralised model with Peppol as the core interoperability network, is a four-corner model.
## The four corners
| Corner | Who | Role in a UK example |
|---|---|---|
| **C1** | Supplier | A Sheffield engineering firm raises an invoice in its accounting software |
| **C2** | Supplier's service provider (Access Point) | Validates the invoice, looks up the buyer, sends it over Peppol |
| **C3** | Buyer's service provider (Access Point) | Receives the invoice, checks it, passes it on |
| **C4** | Buyer | A Glasgow retailer's ERP imports the invoice for approval |
The supplier never needs to know which provider the buyer uses. C2 finds out automatically by looking up the buyer's [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) (see [SMP and SML explained](https://einvoices.uk/news/peppol-smp-sml-explained)).
## Step by step
1. **C1 creates** a structured invoice, for example Peppol BIS Billing 3.0 in UBL XML. It is not a PDF.
2. **C2 validates** it against the rules and rejects it if it fails.
3. **C2 looks up** the buyer's Peppol ID to find C3's address and certificate.
4. **C2 sends** the invoice securely to C3 using the AS4 protocol.
5. **C3 checks** it and delivers it to C4. If something fails, C3 sends a Message Level Status back to C2 (see [Invoice Response vs MLR/MLS](https://einvoices.uk/news/peppol-invoice-response-message-level-response)).
6. **C4 processes** the invoice, ideally matching it to the order automatically.
On Peppol, C2 and C3 have both signed the same Peppol agreements and passed conformance testing, which is what lets strangers trust each other.
## Why four corners and not one platform?
The Department of Health's NHS eProcurement Strategy (April 2014), which brought Peppol into the NHS, explained the model simply:
- "each NHS provider selects its own access point for messaging all suppliers"
- "each supplier selects its own access point for messaging all NHS Providers"
- "There are no fees payable between access points, with each party paying only their own PEPPOL access point provider."
Compared with alternatives:
| Model | How it works | Main drawback |
|---|---|---|
| Two-corner (direct) | Supplier connects straight to buyer, by EDI link, portal upload or email | One connection per trading partner |
| Three-corner | One platform serves both sides | Everyone must join the same platform; risk of lock-in |
| **Four-corner** | Each side chooses a provider, and providers interconnect | Needs common rules and governance (Peppol supplies these) |
| Five-corner | Four-corner plus reporting to the tax authority | More data flows and obligations |
| Centralised / clearance | Invoices pass through a government platform | Dependence on one platform; heavier state role |
OpenPeppol contrasts its approach with "closed or 'three-corner' networks". The four-corner model's selling point is that, like email, one connection reaches everyone.
## Four corners vs five corners
In a **five-corner** model, invoice data is also sent to the tax authority, the fifth corner, usually by the service providers. The Peppol Network Policy treats a five-corner model as "a combination of multiple instances of a 4-Corner Model". Technically, the fifth corner is another Peppol exchange.
In the government's 2025 consultation response, several respondents recommended "considering the Peppol network on either a four-corner or five-corner model". The government's decision for launch: **no real-time reporting alongside the mandate.** So the UK starts as a four-corner model. Whether a reporting element (a fifth corner) is added later has not been confirmed. See [Five-corner model and the UK](https://einvoices.uk/news/five-corner-model-uk) and [Will HMRC require real-time reporting?](https://einvoices.uk/news/real-time-reporting-uk)
## What it means for different businesses
- **Small businesses:** you will usually get corner 2 or 3 through your accounting software. You do not need to "join" Peppol separately. See the [small business guide](https://einvoices.uk/news/e-invoicing-small-business-guide).
- **Larger businesses:** you may connect your ERP to a provider by API or file transfer. Pick the provider on certification, validation, portability and price (see [How to choose a Peppol Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point)).
- **Public sector suppliers:** many NHS suppliers already work this way.
- **Businesses that receive invoices on supplier portals:** the four-corner model can replace dozens of portal logins with one connection, if your customers support it.
## What is confirmed and what is not
**CONFIRMED (official):**
- Peppol "will be the core interoperability network for e-invoicing in the UK" (GOV.UK Tax Update summary, 23 June 2026).
- Decentralised model, with mandatory e-invoicing for B2B and B2G VAT invoices from April 2029.
- No real-time reporting at launch.
**NOT YET CONFIRMED (as of 20 October 2026):**
- how service providers will be accredited for the UK mandate
- what role, if any, non-Peppol channels such as existing EDI or legacy systems will have. The government says it "will continue to engage with stakeholders regarding the role of legacy systems which cannot interoperate in the future system".
- whether and when any reporting to HMRC (a fifth corner) will follow
The implementation roadmap is due at Budget 2026 on 28 October.
## What to do now
1. Identify your corner 2 and 3. Ask your software vendor which certified Peppol provider it uses.
2. Check that your provider can both **send and receive**.
3. Find your main customers' and suppliers' Peppol IDs in the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk).
4. Read [What is Peppol?](https://einvoices.uk/news/what-is-peppol) and the glossary entry for the [four-corner model](https://einvoices.uk/news/four-corner-model-explained).
## Frequently asked questions
### What is the four-corner model?
It is an e-invoicing model where the supplier (corner 1) and buyer (corner 4) each use their own service provider (corners 2 and 3). The providers exchange invoices over a shared network such as Peppol, so neither business needs to use the other's provider.
### Will the UK use the four-corner model?
The UK has confirmed a decentralised model with Peppol as the core interoperability network, which works on the four-corner model. There will be no real-time reporting to HMRC at launch.
### What is the difference between the four-corner and five-corner model?
In a five-corner model, invoice data is also reported to the tax authority, the fifth corner, usually by the service providers. The UK has said real-time reporting will not be introduced alongside the 2029 mandate.
### What is a three-corner model?
A single provider or platform serves both supplier and buyer, as in many closed supplier portals. It works only if both sides join that platform.
### Who pays in the four-corner model?
Each business pays only its own provider. There are no fees between Access Points on Peppol.
---
How to cite: "The four-corner model of e-invoicing explained", einvoices.uk, 20 October 2026, https://einvoices.uk/news/four-corner-model-explained
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# A short history of e-invoicing in the UK, from EDI to 2029
> How UK e-invoicing got here: EDI, the NHS Peppol strategy, public procurement rules, Making Tax Digital, the 2025 consultation and the April 2029 mandate.
- Canonical URL: https://einvoices.uk/news/history-of-e-invoicing-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, Peppol, Public sector, NHS
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [NHS eProcurement Strategy](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/344574/NHS_eProcurement_Strategy.pdf)
- [The Public Procurement (Electronic Invoices etc.) Regulations 2019: Explanatory Note](https://www.legislation.gov.uk/uksi/2019/624/note/made)
- [Guidance: Electronic Invoicing and Payment (HTML)](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html)
- [Less than one week to go for MTD](https://www.gov.uk/government/news/less-than-one-week-to-go-for-mtd)
- [Government sets out plans for 'e-invoicing' overhaul to cut paperwork](https://www.gov.uk/government/news/government-sets-out-plans-for-e-invoicing-overhaul-to-cut-paperwork)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [About - OpenPeppol](https://peppol.org/about/)
- [England NHS - OpenPeppol](https://peppol.org/learn-more/country-profiles/england-nhs/)
- [Transforming Public Procurement](https://www.gov.uk/government/collections/transforming-public-procurement)
---
E-invoicing in the UK did not start with the 2029 mandate. Large retailers have swapped structured invoices by EDI since the 1980s. The NHS adopted Peppol in 2014, and public bodies have had to accept standard e-invoices since 2019. What changes from **April 2029** is that e-invoicing becomes compulsory for VAT invoices between businesses and to the public sector.
Here is the story so far, and what is still to come.
## Timeline
| Date | Event | Status |
|---|---|---|
| 1980s | EDI spreads in UK retail and manufacturing; UN/EDIFACT published by UNECE in 1987 | Historical |
| 2008 | PEPPOL begins as a European Commission-funded pilot | peppol.org |
| 2012 | PEPPOL project ends; OpenPeppol, a Belgian non-profit, takes over | peppol.org |
| 2014 | Department of Health publishes the NHS eProcurement Strategy, adopting GS1 and PEPPOL | Official |
| 2014 | EU Directive 2014/55/EU on e-invoicing in public procurement | Official |
| April 2019 | UK regulations require public contracts to accept compliant e-invoices | Official |
| April 2019 | MTD for VAT begins for businesses above £85,000 turnover | Official |
| April 2020 | E-invoicing rules extend to sub-central authorities and utilities | Official |
| April 2022 | MTD for VAT applies to all VAT-registered businesses | Official |
| 24 February 2025 | Procurement Act 2023 regime goes live, with e-invoicing in section 67 | Official |
| 13 February to 7 May 2025 | HMRC and DBT e-invoicing consultation | Official |
| 26 November 2025 | Budget 2025: mandatory e-invoicing for VAT invoices from April 2029 | Official |
| January 2026 | Detailed stakeholder engagement begins | Official |
| 23 June 2026 | Government announces Peppol as the core interoperability network | Official |
| 28 October 2026 | Budget 2026: implementation roadmap due | Expected |
| April 2029 | Mandate starts | Confirmed |
## The EDI era
Before anyone said "e-invoicing", large UK buyers were exchanging orders and invoices as EDI messages. EDI was efficient but bilateral: every trading relationship needed its own set-up, so it stayed mostly with big retailers, manufacturers and their main suppliers. Smaller businesses kept posting paper or, later, emailing PDFs. See [E-invoicing vs EDI](https://einvoices.uk/news/e-invoicing-vs-edi).
## The NHS goes first (2014)
The decisive public-sector move came from health. The Department of Health's **NHS eProcurement Strategy** (2014) set out to make "GS1 coding and PEPPOL messaging" the standards across healthcare and its supply chains. Trusts had to plan adoption, and suppliers came under pressure to connect.
That is why Peppol is already familiar to thousands of UK suppliers. When the government's 2025 consultation looked for an existing UK standard, the NHS was the example it gave. Today the formal Peppol Authority agreement for England's NHS sits between OpenPeppol and the Department of Health and Social Care, according to OpenPeppol. See [NHS Peppol e-invoicing for suppliers](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers).
## Public procurement rules (2019 and 2025)
The EU's Directive 2014/55/EU required public bodies to accept e-invoices that meet the European standard, [EN 16931](https://einvoices.uk/news/en-16931-explained). The UK implemented it through the **Public Procurement (Electronic Invoices etc.) Regulations 2019**. The explanatory note says contracting authorities must include "an express term obliging them to accept electronic invoices", with later application from **18 April 2020** for sub-central authorities and utilities.
legislation.gov.uk now lists those regulations as revoked, with the **Procurement Act 2023** (live from 24 February 2025) carrying the rule forward. Section 67 implies a term into public contracts requiring authorities to accept and process e-invoices that comply with BS EN 16931-1:2017. See [Public sector e-invoicing regulations](https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019).
Note what this did and did not do: public bodies had to **accept** e-invoices, but suppliers were not forced to **send** them.
## Making Tax Digital (2019 to 2022)
Making Tax Digital changed how businesses keep VAT records and file returns. It became mandatory from April 2019 for businesses above £85,000 taxable turnover and for all VAT-registered businesses from April 2022. It did not regulate invoice formats. HMRC's guidance still says it is up to you whether you issue paper or electronic VAT invoices. MTD did, however, push most VAT-registered businesses onto accounting software, which is the foundation e-invoicing will build on. See [E-invoicing vs MTD](https://einvoices.uk/news/e-invoicing-vs-making-tax-digital).
## The 2025 consultation
On 13 February 2025 HMRC and the Department for Business and Trade launched a 12-week consultation. Its press release cited Billentis research that 80% of businesses globally key in supplier invoice data manually, with about 10% of that data containing errors. It received 342 responses. See [Consultation summary](https://einvoices.uk/news/uk-e-invoicing-consultation-2025-summary).
## The mandate (November 2025)
At Budget 2025 on 26 November 2025 the government said: "From April 2029, businesses will be required to issue all VAT invoices as e-invoices, with a roadmap on implementation to be published next year." The consultation response the same day confirmed a decentralised model and no real-time reporting at launch.
## Peppol confirmed (June 2026)
The Tax Update on 23 June 2026 announced that "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK", giving software developers "an indication of the direction of travel".
## What comes next
**Expected at Budget 2026 (28 October 2026):** the implementation roadmap with milestones to April 2029.
**Still to be decided:** the UK invoice specification, provider accreditation, penalties, edge cases such as self-billing and receipts, and any future reporting to HMRC.
## What to do now
History shows UK e-invoicing has moved in steps, each one announced in advance. Use the time before 2029: map your invoicing, talk to your software provider, and follow the [timeline](https://einvoices.uk/timeline) and [mandate guide](https://einvoices.uk/mandate).
## Frequently asked questions
### When did e-invoicing start in the UK?
Structured electronic invoicing has been used in the UK for decades through EDI. Government policy began to push it with the NHS eProcurement Strategy in 2014 and public procurement e-invoicing rules from 2019. It becomes mandatory for VAT invoices from April 2029.
### Why did the NHS adopt Peppol?
The Department of Health's 2014 NHS eProcurement Strategy set GS1 coding and PEPPOL messaging as standards across healthcare and its supply chains, to improve efficiency and patient safety.
### Has e-invoicing ever been compulsory in the UK before?
Not for business-to-business invoices. Since 2019, public bodies have had to accept e-invoices that meet the European standard, and NHS suppliers have been required to use Peppol, but suppliers could choose how to invoice most customers.
---
How to cite: "A short history of e-invoicing in the UK, from EDI to 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/history-of-e-invoicing-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How to choose a Peppol Access Point in the UK
> Check the provider is Peppol-certified, can send and receive BIS Billing 3.0, supports MLS and lets you move your Peppol ID. A practical UK checklist.
- Canonical URL: https://einvoices.uk/news/how-to-choose-a-peppol-access-point
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Software, Finance teams, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol Certified Service Providers - OpenPeppol](https://peppol.org/members/peppol-certified-service-providers/)
- [Peppol Interoperability Framework - OpenPeppol](https://peppol.org/learn-more/peppol-interoperability-framework/)
- [Peppol Network Policy v1.0.0](https://docs.peppol.eu/edelivery/policies/Peppol%20Network%20Policy%201.0.0%202026-07-02.pdf)
- [Peppol Service Metadata Locator (SML) v1.3.0](https://docs.peppol.eu/edelivery/sml/Peppol-EDN-Service-Metadata-Locator-1.3.0-2025-02-06.pdf)
- [Peppol Directory v1.1.1](https://docs.peppol.eu/edelivery/directory/PEPPOL-EDN-Directory-1.1.1-2020-10-15.pdf)
- [OpenPeppol eDEC Specifications](https://docs.peppol.eu/edelivery/)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
To choose a Peppol Access Point in the UK, start with OpenPeppol's public list of **certified service providers**. Then check five things: that the provider can **send and receive** Peppol BIS Billing 3.0 invoices and credit notes, that it **validates** before sending, that it supports Peppol's **message status** responses, that it will register the **Peppol ID** you need, and that you can **move your ID** if you leave. For most businesses, the Access Point comes bundled with their accounting or ERP software, so the decision is really about that software's Peppol partner.
## First: what you are actually buying
An [Access Point](https://einvoices.uk/glossary#access-point) (corner 2 or 3 in the [four-corner model](https://einvoices.uk/news/four-corner-model-explained)) sends and receives Peppol messages for you. Most providers also run an **SMP**, the registry that advertises your Peppol ID and the documents you can receive. OpenPeppol certifies the two roles separately, so a provider can be AP certified, SMP certified or both.
Before offering services, every provider must sign the Peppol Service Provider Agreement and pass Peppol conformance testing. Providers normally sign with the Peppol Authority in their home jurisdiction, or directly with OpenPeppol where there is none. On OpenPeppol's certified provider list (updated 19 October 2026), UK-resident providers show **OpenPeppol** as their Peppol Authority. See [Who is the UK Peppol Authority?](https://einvoices.uk/news/peppol-authority-uk)
## The checklist
### 1. Certification
- [ ] Listed on peppol.org's **Peppol Certified Service Providers** page
- [ ] **AP certified** (to send and receive) and **SMP certified** (to register you), or a clear explanation of who runs the SMP
- [ ] If you go through accounting software, ask which certified provider it uses. Many software companies do not run their own Access Point and rely on a certified partner instead.
The list's country column "reflects the country/territory of legal residence, not the area(s) of operations". A provider based elsewhere can serve UK customers.
### 2. Documents and directions
- [ ] **Sends and receives** Peppol BIS Billing 3.0 invoices **and credit notes**. Some setups only send.
- [ ] Keeps up with BIS releases. The May 2026 release (3.0.21) became mandatory on 17 August 2026. See [Peppol BIS Billing 3.0 for UK businesses](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide).
- [ ] Optional: Invoice Response (buyer status messages), orders, despatch advice, if you need them
### 3. Validation and error handling
- [ ] Validates every invoice against the Peppol rules **before** sending, and shows you errors in plain language
- [ ] Handles **Message Level Status (MLS)**. Under the Peppol Network Policy (2 July 2026), every provider "MUST support sending and receiving MLS messages". Ask how rejections reach you: by email, in your software or by API. See [Peppol Invoice Response and MLR/MLS](https://einvoices.uk/news/peppol-invoice-response-message-level-response).
- [ ] Clear process for what happens when a buyer's provider rejects your invoice
### 4. Your Peppol ID
- [ ] Registers the scheme you need: **9932** (UK VAT number), **0088** (GLN) or both. See [EAS codes 9932 and 0088](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
- [ ] Tells you the **exact** value it registers, for example `9932:gb123456789` (made-up), and whether it uses the `GB` prefix
- [ ] Can register several IDs, divisions or entities if you need them
- [ ] Publishes your business card to the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk), which is optional for providers, and lets you check the details
### 5. Leaving (portability)
- [ ] Supports **SMP migration** out as well as in. The SML specification lets your current SMP prepare a participant for migration and pass a migration code, which the new SMP uses to take over. Your Peppol ID stays the same.
- [ ] No contract terms that prevent you from getting a migration code
- [ ] You can export your invoice archive in a standard format (UBL XML plus any attachments)
### 6. Integration and operations
- [ ] Connects to your system: built in, API, file drop (SFTP) or a portal for low volumes
- [ ] Shows delivery status per invoice
- [ ] Support hours and service levels that suit you
- [ ] Where data is stored and for how long. Remember your own VAT record-keeping duties. See [E-invoice archiving and retention](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
### 7. Price
Under Peppol, each side pays only its own provider, and there are no fees between Access Points. Pricing models vary: per document, monthly bundles or included in software subscriptions. Compare the **total** cost for your real volumes, including receiving, credit notes, extra IDs and support.
## Questions to ask in a demo
1. "Show me an invoice being rejected by validation. What do I see?"
2. "If the buyer's Access Point rejects it, how and how quickly do I find out?"
3. "What exactly is my Peppol ID, and is it in the Directory?"
4. "How do I leave you and keep my ID?"
5. "How will you handle UK-specific rules once the government publishes them?"
## Red flags
- The provider is not on the certified list and cannot name its certified partner.
- It will not tell you your exact Peppol ID.
- It treats a PDF as the invoice. Peppol invoices are structured XML.
- It cannot receive, only send.
- It claims to be "HMRC approved" or "HMRC accredited" for e-invoicing. No such scheme has been announced as of 20 October 2026.
## What is not settled for the UK
**Confirmed:** Peppol will be the core interoperability network for UK e-invoicing, and the mandate starts on April 2029.
**Not yet confirmed:** any UK accreditation for service providers, any UK-specific rules providers must implement, whether a UK Peppol Authority will add national requirements, and the treatment of legacy non-Peppol channels. The roadmap is due at Budget 2026 on 28 October 2026. If you are choosing now, prefer providers that commit to implementing UK requirements without a re-contracting exercise, and avoid long lock-ins.
## What to do now
1. Ask your current accounting or ERP vendor who its Peppol provider is, then check that provider on peppol.org.
2. Run the checklist above against one or two alternatives.
3. Start with receiving. It is often the cheapest way to get your Peppol ID live and test the flow.
## Frequently asked questions
### How do I know if a Peppol Access Point is certified?
Check OpenPeppol's public list of Peppol Certified Service Providers on peppol.org. It shows whether each provider is AP certified, SMP certified or both, its country of legal residence and its Peppol Authority.
### Do I need my own Access Point?
Almost certainly not. Most businesses use one through their accounting or ERP software, or contract with a certified provider directly. Running your own Access Point means becoming a certified service provider yourself.
### Can I change Peppol Access Point later and keep my Peppol ID?
Yes, in principle. The SML specification has a migration process in which your current SMP issues a migration code and the new SMP uses it to take over your registration. Ask any provider how it handles migrations in and out.
### Will HMRC accredit Peppol Access Points?
Not yet decided. The government has confirmed Peppol as the core network but has not published how service providers will be accredited for the 2029 mandate. Today, Peppol certification comes from OpenPeppol.
### Do I pay to receive invoices on Peppol?
That depends on your provider's pricing. Under the four-corner model each party pays only its own provider, and there are no fees between Access Points.
---
How to cite: "How to choose a Peppol Access Point in the UK", einvoices.uk, 20 October 2026, https://einvoices.uk/news/how-to-choose-a-peppol-access-point
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How to attach a PDF to a Peppol invoice (BG-24)
> How to attach a PDF, timesheet or spreadsheet to a Peppol e-invoice: allowed file types, the exact UBL, and the rules that reject attachments.
- Canonical URL: https://einvoices.uk/news/invoice-attachments-peppol
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Technical, Validation, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21), 7.2.10 Binary objects](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Mime code (subset of IANA code list) – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/MimeCode/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [Electronic invoicing (VAT Notice 700/63) – GOV.UK](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
---
To attach a PDF to a Peppol invoice, add a `cac:AdditionalDocumentReference` with an ID, and inside it a `cac:Attachment/cbc:EmbeddedDocumentBinaryObject` holding the Base64-encoded file, with `mimeCode="application/pdf"` and a `filename`. Peppol allows only six file types: PDF, PNG, JPEG, CSV, XLSX and ODS. The attachment travels with the invoice. It does not replace the structured data.
## The business terms
Attachments sit in **BG-24 Additional supporting documents**, which can repeat:
| Business term | UBL | Required? |
|---|---|---|
| BT-122 Supporting document reference | `cac:AdditionalDocumentReference/cbc:ID` | Yes, for each BG-24 |
| BT-123 Supporting document description | `cbc:DocumentDescription` | Optional (max once) |
| BT-124 External document location | `cac:Attachment/cac:ExternalReference/cbc:URI` | Optional |
| BT-125 Attached document | `cac:Attachment/cbc:EmbeddedDocumentBinaryObject` | Optional |
| BT-125-1 Attached document MIME code | `@mimeCode` | Yes, if BT-125 is used |
| BT-125-2 Attached document filename | `@filename` | Yes, if BT-125 is used |
Peppol says: "Attachments shall be transmitted together with the Invoice. The binary object has two supplementary components: a Mime Code … and a Filename." And on the receiving side: "A receiver of an invoice or credit note, shall accept and process attachments that are according to the code list Media type code of attached document."
## Allowed file types
The Peppol MIME code list (a subset of IANA) contains exactly:
| File | mimeCode |
|---|---|
| PDF | `application/pdf` |
| PNG image | `image/png` |
| JPEG image | `image/jpeg` |
| CSV | `text/csv` |
| Excel | `application/vnd.openxmlformats-officedocument.spreadsheetml.sheet` |
| OpenDocument spreadsheet | `application/vnd.oasis.opendocument.spreadsheet` |
Word documents, ZIP files, emails and XML files are not on the list.
## Embedding a PDF: correct UBL
```xml
TS-2026-09
Timesheet September 2026
JVBERi0xLjQKJcfsj6IK...
```
The element content is the file's bytes as plain Base64, without a `data:` prefix. In a UBL invoice, `cac:AdditionalDocumentReference` sits after `cac:ContractDocumentReference` (if present) and before `cac:ProjectReference` and `cac:AccountingSupplierParty`. Repeat the whole block for each file.
We validated an invoice containing this block (with a small Base64-encoded PDF) against the UBL 2.1 schema, the EN 16931 rules and the Peppol rules, with no errors.
## Linking instead of embedding
You can point to a file instead of embedding it:
```xml
DN-5531
Signed delivery note
https://files.example.co.uk/dn/5531.pdf
```
This validates, but think about the receiver. Links expire, need log-ins, or get blocked by security tools, and the buyer has to keep the document for their own records. Embedding is more reliable for anything the buyer needs to approve the invoice.
## The errors
We triggered each of these by changing one thing in the valid example above:
**Wrong file type.** `mimeCode="application/msword"` fails two rules:
```text
PEPPOL-EN16931-CL001 Mime code must be according to subset of IANA code list.
[BR-CL-24]-For Mime code in attribute use MIMEMediaType.
```
Fix: convert to PDF.
**No filename.** Leaving out `filename` fails:
```text
[UBL-DT-07]-Binary object elements shall contain the file name attribute
```
**No ID.** Dropping `cbc:ID` fails the UBL schema (the element is mandatory) and EN 16931:
```text
[BR-52]-Each Additional supporting document (BG-24) shall contain a Supporting document reference (BT-122).
```
**Mixing an invoiced object and an attachment.** `cac:AdditionalDocumentReference` with `cbc:DocumentTypeCode` 130 is used for an "invoiced object identifier", such as a meter or subscription number. **UBL-CR-666** says: "A UBL invoice shall not include an AdditionalDocumentReference simultaneously referring an Invoice Object Identifier and an Attachment". Use separate blocks.
**Two descriptions.** **UBL-SR-33**: "Supporting document description shall occur maximum once".
## Size
Peppol BIS Billing 3.0 does not set a size limit for attachments, and we found no limit in the Peppol AS4 specification. Base64 encoding makes files about a third bigger. Access Points and receiving systems can impose their own limits, so compress scans and check with your provider before sending large drawings or photo sets.
## Is the PDF the invoice?
No. In Peppol the structured XML is the invoice. Totals, VAT and references are read from the XML, and an attached PDF is supporting material. Attaching a PDF rendering of the invoice itself is common, so that people can see a familiar layout. Keep in mind:
- If the PDF and the XML disagree, the buyer's system will process the XML. Generate both from the same data.
- HMRC's VAT Notice 700/63 warns against "running a dual system" of electronic and paper invoices for the same supplies outside a controlled trial, and says that once a trial ends "the electronic invoice then becomes the legal document for VAT purposes". How HMRC will treat a PDF copy attached to a mandated e-invoice from 2029 is **not yet confirmed**. Labelling the PDF as a copy or visual rendering is a sensible precaution.
For more on why a PDF on its own does not count, see [does a PDF invoice count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
## What may change for the UK
These rules are Peppol BIS Billing 3.0 (May 2026 release). The government's consultation response records calls for "provision for attaching accompanying documents" and says its technical work will consider "extensions to the standardised invoice to accommodate sector specific needs". Whether the UK specification changes the allowed file types or adds limits is **not yet confirmed**.
## What to do now
- Agree with key customers which documents they need (timesheets, proof of delivery, statements) and send them as attachments, not separate emails.
- Convert Word and email documents to PDF before attaching.
- Make sure your AP system shows attachments to approvers. Peppol says receivers "shall accept and process" allowed attachments.
- See the full [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
## Frequently asked questions
### Can I attach a PDF to a Peppol invoice?
Yes. Embed it, Base64-encoded, in cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject with mimeCode="application/pdf" and a filename. The reference needs an ID.
### Which file types can be attached to a Peppol invoice?
PDF, PNG, JPEG, CSV, Excel (XLSX) and OpenDocument spreadsheet (ODS). Anything else, such as Word or ZIP, fails rule PEPPOL-EN16931-CL001.
### Is the attached PDF the legal invoice?
The structured XML is the e-invoice. An attached PDF is supporting material. How HMRC will treat PDF copies under the 2029 mandate is not yet confirmed.
### Is there a size limit for Peppol attachments?
Peppol BIS Billing 3.0 does not set one. Your Access Point or the receiver may impose limits, so check with your provider before sending large files.
---
How to cite: "How to attach a PDF to a Peppol invoice (BG-24)", einvoices.uk, 20 October 2026, https://einvoices.uk/news/invoice-attachments-peppol
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Invoicing a council electronically: a supplier's guide
> Councils must accept compliant e-invoices on above-threshold contracts. Here is what that means today, how it differs across the UK, and what April 2029 adds.
- Canonical URL: https://einvoices.uk/news/local-council-e-invoicing-suppliers
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Public sector, 2029 mandate, Small business, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Procurement Act 2023, section 67: Electronic invoicing: implied term](https://www.legislation.gov.uk/ukpga/2023/54/section/67)
- [Procurement Act 2023, section 88: Regulated below-threshold contracts: implied payment terms](https://www.legislation.gov.uk/ukpga/2023/54/section/88)
- [Guidance: Electronic Invoicing and Payment (HTML)](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html)
- [The Public Contracts (Scotland) Regulations 2015, regulation 70A](https://www.legislation.gov.uk/ssi/2015/446/regulation/70A)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [What you must do as a Construction Industry Scheme (CIS) contractor](https://www.gov.uk/what-you-must-do-as-a-cis-contractor)
---
You can already invoice most councils electronically. On contracts procured under the **Procurement Act 2023**, a council must accept and process an undisputed e-invoice that meets the EN 16931 standard. From **April 2029**, sending VAT invoices to public bodies as e-invoices stops being optional: it becomes a legal requirement for the supplier.
Here is how council invoicing works now, where the rules differ across the UK, and what to prepare for.
## The rule today: councils must accept compliant e-invoices
Councils are "sub-central" contracting authorities. They came under the e-invoicing rule on **18 April 2020**, a year after central government, under the Public Contracts Regulations 2015 as amended in 2019. For procurements under the Procurement Act 2023, from 24 February 2025, [section 67](https://www.legislation.gov.uk/ukpga/2023/54/section/67) applies:
- Every **public contract** carries an implied term that the council must accept and process for payment an e-invoice that is in the "required electronic form" and not disputed.
- "Required electronic form" means compliant with **BS EN 16931-1:2017** and using a syntax listed in **PD CEN/TS 16931-2:2017**. In practice that means UBL or CII, which is what Peppol BIS Billing 3.0 uses.
- The council **can require a particular system**. Many councils route suppliers through a supplier portal or an e-invoicing provider, or name an inbox for invoices.
- Any contract term that tries to restrict this right is of no effect.
Two practical consequences. First, an emailed PDF is not an "electronic invoice" in this sense. It is an ordinary invoice that happens to arrive electronically. Second, the right covers **public contracts**. Cabinet Office [guidance](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html) notes that e-invoicing was not mandated for below-threshold contracts under the old regime. The Act's term for regulated below-threshold contracts ([section 88](https://www.legislation.gov.uk/ukpga/2023/54/section/88)) covers payment, not e-invoicing.
## Payment: 30 days from receipt
Councils must pay within **30 days** of receiving an invoice, or by the due date on the invoice if that is later. This is implied by section 68 for public contracts and section 88 for regulated below-threshold contracts. If the council thinks your invoice is invalid or disputes it, it must tell you **without undue delay**.
An invoice is valid for these purposes if it is a compliant e-invoice, or if it carries the minimum information and meets the contract's requirements. The minimum is your name, a description of what you supplied, the sum requested and a unique identification number. (Below-threshold contracts use only the minimum-information test.) Where the council uses an e-invoicing system, the guidance says the day your invoice lands on that system counts as the day of receipt. A structured e-invoice gives you a clear timestamp, which a PDF lost in a shared inbox does not.
The payment terms are **not** implied into contracts awarded by a **school**, into concession contracts, or into utilities contracts let by private utilities.
## What a council invoice needs
Most rejected council invoices fail on references rather than VAT. Before sending, check:
- **Purchase order number.** Many councils operate "no PO, no pay". Put it exactly where the buyer expects it. In Peppol that is usually the order reference or the buyer reference. See [buyer reference and PO reference](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
- **The right legal entity.** Councils often have several invoicing entities (for example a council and its pension fund or trading company). Use the one named on the order.
- **VAT treatment.** Councils are charged VAT in the usual way. [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700) (paragraph 8.15) says suppliers to local authorities should "charge and account for VAT in the usual way". Councils have their own mechanism for recovering it. Do not zero-rate a supply just because the customer is a council.
- **Full VAT invoice details.** See [what a VAT invoice must include](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing).
### Construction work for councils
A local authority that spends more than £3 million on construction in 12 months becomes a **deemed contractor** under the Construction Industry Scheme. Construction subcontractors to councils may therefore see CIS deductions and the VAT domestic reverse charge. See [construction e-invoicing and CIS](https://einvoices.uk/news/e-invoicing-construction-cis).
## England, Scotland, Wales and Northern Ireland
| Nation | Rule for councils | Since |
|---|---|---|
| England | Procurement Act 2023 s.67 (older contracts: PCR 2015 reg 113A) | 18 April 2020 (s.67 for procurements from 24 Feb 2025) |
| Wales | Procurement Act 2023 s.67; Welsh Government publishes parallel guidance | As England |
| Northern Ireland | Procurement Act 2023 s.67 (older contracts: PCR 2015 reg 113A) | As England |
| Scotland | Public Contracts (Scotland) Regulations 2015, reg 70A, an implied term to accept compliant e-invoices | 18 April 2020 |
The Procurement Act does not apply to devolved Scottish authorities, so Scottish councils stay under the Scottish regulations. The practical effect for suppliers is the same: a compliant, undisputed e-invoice must be accepted. The 2029 VAT mandate will apply across the whole UK, because VAT is not devolved.
## What changes in April 2029
**Confirmed:**
- VAT invoices issued by businesses to public-sector bodies (B2G) must be e-invoices from April 2029.
- The government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that Peppol will be the core interoperability network.
- The model is decentralised, with no real-time reporting to HMRC at launch.
**Not yet confirmed:**
- Whether councils will have to retire supplier portals in favour of Peppol, or whether portals will connect to Peppol behind the scenes
- How the procurement-law definition of "required electronic form" will line up with the national standard
- How invoices from suppliers who are not VAT-registered will be treated (many small council suppliers fall below the £90,000 threshold). See [e-invoicing for non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses)
- How invoices that councils themselves issue to businesses will be handled, for example commercial waste or room hire. The mandate covers VAT invoices generally, but there is no detailed guidance for public bodies as sellers yet
## What to do now
1. **Ask each council customer** how it wants invoices today: Peppol, portal or email. Record its PO rules.
2. **Move to structured e-invoices where you can.** You already have the legal right on public contracts, and it builds the habit before 2029.
3. **Check whether your accounting software can send over Peppol.** See [checking your software's Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support).
4. **Use our [scope checker](https://einvoices.uk/tools/am-i-in-scope)** to see where the mandate is likely to bite for you.
Related: [central government invoicing](https://einvoices.uk/news/central-government-e-invoicing-suppliers), [the 2019 regulations explained](https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019) and the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### Does a council have to accept an electronic invoice?
On public contracts procured under the Procurement Act 2023, yes. The council must accept and process an undisputed e-invoice that meets the EN 16931 standard. It can require you to use a particular system to send it. Below-threshold contracts carry no equivalent e-invoicing term.
### Is a PDF emailed to a council an e-invoice?
Not in the legal sense. The Procurement Act defines an e-invoice as one in a structured format that allows automatic processing. A PDF is an electronic document, but it is not structured data.
### How quickly must a council pay my invoice?
Within 30 days of receiving it, under terms implied by the Procurement Act 2023, unless it considers the invoice invalid or disputes it. It must then tell you without undue delay. A contract can set a shorter period, but not a longer one.
### Will councils need Peppol from 2029?
VAT invoices to public bodies must be e-invoices from April 2029, and Peppol is the confirmed network, so councils will need to be able to receive over it. Exact requirements for public-sector buyers have not yet been published.
---
How to cite: "Invoicing a council electronically: a supplier's guide", einvoices.uk, 20 October 2026, https://einvoices.uk/news/local-council-e-invoicing-suppliers
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Master data clean-up for e-invoicing: VAT numbers and more
> How to clean customer and supplier master data for UK e-invoicing: VAT numbers, legal names, Peppol IDs, VAT codes and references, with a practical checklist.
- Canonical URL: https://einvoices.uk/news/master-data-cleanup-e-invoicing
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, VAT, Validation, Peppol
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number)
- [Register for VAT: Selling or moving goods between Northern Ireland and the EU](https://www.gov.uk/register-for-vat/selling-or-moving-goods-between-northern-ireland-and-the-eu)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
Master data clean-up is the least glamorous and most important part of e-invoicing preparation. **Before April 2029, check every in-scope customer and supplier record for a valid VAT number, correct legal name and address, a confirmed Peppol ID, and the references and VAT codes your invoices need.** Bad data that a person would correct without thinking will cause e-invoices to fail validation or go to the wrong place.
You can start this today. None of it depends on the UK specification, which is expected from the Budget 2026 roadmap on 28 October 2026.
## Why data quality matters more with e-invoicing
With PDFs, a person reads the invoice and fixes small problems. With e-invoices:
- software looks up the customer's **Peppol ID** to decide where to send the invoice, so a wrong ID means a wrong or failed delivery;
- **validation rules** check that totals, VAT breakdowns and codes are consistent, so an unmapped tax code can stop an invoice;
- buyers' systems **match automatically** on PO number, supplier identity and amounts, so missing references lead to rejections;
- **duplicates** can mean an invoice is delivered to an old entity or a supplier is paid twice.
Peppol is confirmed as the UK network; the GOV.UK Tax update 2026 summary says it "will be the core interoperability network for e-invoicing in the UK". Every Peppol exchange relies on accurate identifiers.
## What to clean, field by field
| Field | Check | How |
|---|---|---|
| Legal name | Matches the registered legal entity, not a trading name | Compare with VAT check result and contracts |
| Address | Current registered or business address | Compare with VAT check result |
| UK VAT number | Valid and belongs to this entity | HMRC [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number) |
| Number format | Stored consistently, for example "GB" plus nine digits, no spaces | Standardise in your system |
| XI number | Recorded where a Northern Ireland business uses one | See below |
| Peppol ID | Scheme and value confirmed with the partner or directory | [Peppol Directory lookup](https://einvoices.uk/news/peppol-directory-lookup-uk) |
| Duplicates | One record per legal entity | De-duplicate on VAT number and company number |
| PO and buyer reference rules | Which customers require which references | Ask customers; see [buyer reference BT-10](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol) |
| VAT codes | Every tax code maps to a [VAT category code](https://einvoices.uk/news/uk-vat-category-codes-peppol) | Mapping table |
| Units of measure | Mapped to standard codes | Mapping table |
| Bank details | Verified independently | Your usual fraud controls |
| Invoice contacts | Named person or mailbox | Ask partners |
## VAT numbers: the core of the clean-up
HMRC's **Check a UK VAT number** service confirms whether a UK VAT number is valid and shows the name and address of the business it is registered to. If you are VAT-registered, you can also use it to prove when you checked a number. For EU numbers, GOV.UK points to the EU's VIES service.
Practical steps:
1. Export customers and suppliers you trade with in the UK.
2. Flag records with no VAT number. Some will be genuinely non-VAT-registered (and may be out of scope; see [non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses)). Others are just incomplete.
3. Check each VAT number, starting with your highest-volume partners. Record the date of the check.
4. Compare the name and address returned with your record. Mismatches often reveal a trading name or a different group company.
5. Fix the record, or ask the partner to confirm.
Remember that a UK VAT invoice must show your own VAT number, and the customer's name and address ([VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700), section 16). Get your own details right first.
## Northern Ireland and XI numbers
GOV.UK says a Northern Ireland business that has been recorded as operating under the Northern Ireland Protocol should use the XI prefix before its usual VAT number (for example XI 123456789 instead of GB 123456789) and must use it on documentation, such as invoices, when dealing with EU customers or suppliers. If you trade with such businesses, record both forms where relevant. How XI numbers will be handled in UK Peppol identifiers is not yet confirmed. See [Northern Ireland and XI VAT](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat) and [Peppol IDs in Northern Ireland](https://einvoices.uk/news/peppol-id-northern-ireland-xi).
## Peppol IDs
A [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk) has two parts: a scheme code and a value. The OpenPeppol code list includes:
| Scheme | Code | Notes |
|---|---|---|
| United Kingdom VAT number | 9932 | Active; country GB |
| Global Location Number (GLN) | 0088 | Active; international |
| D-U-N-S Number | 0060 | Active; international |
Do not assume a partner uses its VAT number. Ask, or look it up in the Peppol Directory, and store the scheme and value as separate fields. See [Peppol EAS codes for the UK](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088) and [Peppol participant IDs](https://einvoices.uk/news/peppol-participant-id-uk).
## Duplicates and group companies
- De-duplicate on VAT number first, then on company number and name.
- Where several group companies share a [VAT group](https://einvoices.uk/news/e-invoicing-vat-groups) registration, keep separate records for each legal entity you contract with.
- Archive dormant records rather than deleting them, so history is kept for at least the six years HMRC generally expects for VAT records.
## VAT code mapping
Build a table that maps every tax code in your system to a Peppol VAT category code and rate. Watch:
- reverse charge codes, for example [construction](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice);
- zero-rated versus exempt versus outside the scope;
- legacy codes that should be retired.
Unmapped or wrongly mapped codes are a common cause of [validation errors](https://einvoices.uk/news/common-peppol-validation-errors).
## Keep it clean
- [ ] Add VAT number checks and Peppol ID fields to new customer and supplier forms.
- [ ] Re-check VAT numbers for top partners periodically.
- [ ] Give one team ownership of master data.
- [ ] Report data-related invoice rejections monthly, and fix root causes.
## What to do now
- [ ] Export in-scope customers and suppliers.
- [ ] Check VAT numbers for your top partners by volume.
- [ ] Fix your own entity details first.
- [ ] Build the VAT code mapping table.
- [ ] Add data clean-up to your [project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams) and [readiness checklist](https://einvoices.uk/news/uk-e-invoicing-readiness-checklist).
## Frequently asked questions
### Why does master data matter for e-invoicing?
E-invoices are read and checked by software. Wrong VAT numbers, duplicate records, missing references or unmapped VAT codes cause validation failures, misdelivered invoices and rejections that a person reading a PDF might have ignored.
### How do I check a UK VAT number?
Use HMRC's Check a UK VAT number service on GOV.UK. It confirms whether a number is valid and shows the name and address of the business it is registered to.
### What is the format of a UK VAT number?
A UK VAT number is usually shown as GB followed by nine digits, for example GB 123456789. Northern Ireland businesses dealing in goods with the EU use an XI prefix in those situations.
### Is the VAT number the same as a Peppol ID?
Not exactly. A Peppol ID combines a scheme code and a value. The Peppol code list includes scheme 9932 for UK VAT numbers, but a business may register under a different identifier, so always confirm the exact ID.
---
How to cite: "Master data clean-up for e-invoicing: VAT numbers and more", einvoices.uk, 20 October 2026, https://einvoices.uk/news/master-data-cleanup-e-invoicing
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Foreign currency VAT invoices as e-invoices: showing VAT in GBP
> You can invoice in euros or dollars, but HMRC wants total VAT in sterling. How to do that in a Peppol e-invoice with BT-6 and BT-111, and errors to avoid.
- Canonical URL: https://einvoices.uk/news/multi-currency-e-invoices-gbp
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Technical, Peppol, Validation
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Electronic invoicing (VAT Notice 700/63), 3.5 Currency on invoices – GOV.UK](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [VAT guide (VAT Notice 700), 7.6 and 16.4 – GOV.UK](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21), 11.6 VAT accounting currency](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
---
You can issue a UK VAT invoice in any currency, but HMRC requires the **total VAT in sterling** where UK VAT is due at a positive rate. In a Peppol e-invoice you do this with two fields: set the VAT accounting currency (BT-6, `cbc:TaxCurrencyCode`) to `GBP`, and give the total VAT in pounds (BT-111) in a second `cac:TaxTotal` that contains only an amount. Everything else, including the VAT breakdown, stays in the invoice currency.
## What HMRC requires
VAT Notice 700/63 (electronic invoicing), paragraph 3.5: "You may express the amounts in any currency. But you must express the total amount of VAT in sterling where there is a positive rate of VAT due in the UK."
VAT Notice 700, paragraph 16.4: if you issue VAT invoices in a foreign currency for supplies that take place in the UK, "you must convert the total amount of VAT payable into sterling".
Paragraph 7.6 (which "has force of law") sets out the conversion options:
- the UK market selling rate at the time of the supply (the default)
- HMRC's published period rates for customs purposes, used for all supplies or a class of supplies
- another commercial rate or method, but only if you apply in writing to HMRC and it is approved
"Whatever rate or method you adopt, the appropriate rate for any supply is that current at the time of the supply."
So the requirement is the **total** VAT in sterling. HMRC's notices do not require the net amounts or the per-rate breakdown in sterling.
## How EN 16931 models it
| Business term | Meaning | UBL |
|---|---|---|
| BT-5 Invoice currency code | Currency of all amounts | `cbc:DocumentCurrencyCode` |
| BT-6 VAT accounting currency code | Currency for VAT reporting | `cbc:TaxCurrencyCode` |
| BT-110 Invoice total VAT amount | VAT in the invoice currency | First `cac:TaxTotal/cbc:TaxAmount` |
| BT-111 Invoice total VAT amount in accounting currency | VAT in the VAT currency | Second `cac:TaxTotal/cbc:TaxAmount` |
Peppol's guidance quotes the EU VAT Directive's version of the same rule and explains: "If the invoice currency is different from the national currency, this is expressed in the invoice by stating the national currency in the element VAT accounting currency (BT-6), and the amount of VAT payable in national currency is stated in the element Invoice total VAT amount in accounting currency (BT-111)." The UK rule is the same shape, so the mechanism fits.
## Correct UBL: a euro invoice with VAT in sterling
A UK supplier invoices a UK customer €925.00 net, €173.00 VAT (20% on €865.00, plus €60.00 zero-rated). At an illustrative rate of £0.8650 per euro, the sterling VAT is £149.65.
```xml
EUR
GBP
173.00
865.00
173.00
S
20
VAT
60.00
0.00
Z
0
VAT
149.65
910.00
925.00
1098.00
15.00
1098.00
```
The full invoice passed the UBL 2.1 schema, the EN 16931 rules and the Peppol BIS Billing 3.0 rules with no errors. Every `currencyID` is `EUR` except the single GBP amount.
## The errors, and what causes them
We triggered each of these from the valid example above.
**Forgot the sterling total.** Setting `TaxCurrencyCode` but leaving out the second `TaxTotal`:
```text
[BR-53]-If the VAT accounting currency code (BT-6) is present, then the Invoice total VAT amount in accounting currency (BT-111) shall be provided.
PEPPOL-EN16931-R054 Only one tax total without tax subtotals MUST be provided when tax currency code is provided.
PEPPOL-EN16931-R055 Invoice total VAT amount and Invoice total VAT amount in accounting currency MUST have the same operational sign
```
**Put GBP on the wrong total.** Giving the main `TaxTotal/TaxAmount` (the one with subtotals) `currencyID="GBP"`:
```text
[BR-CO-15]-Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110).
PEPPOL-EN16931-R051 All currencyID attributes must have the same value as the invoice currency code (BT-5), except for the invoice total VAT amount in accounting currency (BT-111).
```
BR-CO-15 needs exactly one `TaxAmount` in the invoice currency. See [BR-CO-15 explained](https://einvoices.uk/news/peppol-validation-error-br-co-15).
**Set GBP as both currencies.** A sterling invoice with `TaxCurrencyCode` GBP fails **PEPPOL-EN16931-R005**: "VAT accounting currency code MUST be different from invoice currency code when provided." For GBP invoices, leave `cbc:TaxCurrencyCode` out.
**Signs differ.** On a negative invoice, both VAT totals must be negative (R055).
## The exchange rate
EN 16931 has no business term for the exchange rate or the rate date. If you want the buyer (or HMRC) to see how you got from €173.00 to £149.65, the usual approach is a short text in the invoice note (BT-22, `cbc:Note`), for example "VAT converted at HMRC period rate". Peppol allows only one document-level note (PEPPOL-EN16931-R002). Whether the UK specification will add an exchange rate field is **not yet confirmed**.
## When you don't need BT-6
- **Invoicing in GBP.** All amounts, including VAT, are already in sterling.
- **No positive-rate UK VAT.** HMRC's sterling rule applies "where there is a positive rate of VAT due in the UK". A zero-rated export invoiced in dollars has no sterling VAT to show. If your software adds BT-6 anyway, BR-53 then requires a BT-111 amount (0.00).
- **Reverse charge.** On AE invoices the VAT amount in the invoice is zero. See [reverse charge e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## Paying in another currency
The payable amount (BT-115) is always in the invoice currency. Peppol has no field for a different settlement currency. If you want payment in sterling, invoice in sterling.
## What may change for the UK mandate
Everything above is Peppol BIS Billing 3.0 (May 2026 release) plus current HMRC guidance. The UK e-invoicing specification has not been published. It could, for example, require the sterling VAT per rate, or a structured exchange rate. **That is not confirmed.** Cross-border invoicing from a UK point of view is covered in [UK businesses selling to the EU](https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing).
## What to do now
- List which customers you invoice in a foreign currency, and check your software sets BT-6 and BT-111 for those invoices.
- Decide on and document your exchange rate method under VAT Notice 700 paragraph 7.6.
- Make sure the sterling VAT on the invoice matches what goes on your VAT return.
- See the full [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
## Frequently asked questions
### Can a UK VAT invoice be issued in euros?
Yes. HMRC allows amounts in any currency, but where UK VAT is due at a positive rate, the total VAT must also be shown in sterling.
### How do I show VAT in GBP on a Peppol invoice in another currency?
Set cbc:TaxCurrencyCode to GBP (BT-6) and add a second cac:TaxTotal with only a cbc:TaxAmount in GBP (BT-111). Everything else stays in the invoice currency.
### Which exchange rate should I use?
HMRC allows the UK market selling rate at the time of supply, HMRC's published period rates, or another rate agreed in writing with HMRC. Use the rate current at the time of supply.
### Can I put the exchange rate in the e-invoice?
EN 16931 has no dedicated exchange rate field. Some businesses add it as text in the invoice note. Whether the UK standard will add a field is not yet confirmed.
---
How to cite: "Foreign currency VAT invoices as e-invoices: showing VAT in GBP", einvoices.uk, 20 October 2026, https://einvoices.uk/news/multi-currency-e-invoices-gbp
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# NHS Peppol invoicing: what suppliers need to know
> Many NHS buyers in England already use Peppol. What applies to NHS suppliers today, and what changes when e-invoicing becomes mandatory in April 2029.
- Canonical URL: https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: NHS, Peppol, Public sector, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [NHS e-procurement strategy](https://www.gov.uk/government/publications/nhs-e-procurement-strategy)
- [England NHS - OpenPeppol](https://peppol.org/learn-more/country-profiles/england-nhs/)
- [Procurement Act 2023, section 67: Electronic invoicing: implied term](https://www.legislation.gov.uk/ukpga/2023/54/section/67)
- [The Electronic Invoicing (Public Contracts etc.) Amendment (Scotland) Regulations 2019](https://www.legislation.gov.uk/ssi/2019/7/made)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
---
If you supply the NHS in England, you may be invoicing over Peppol already. NHS Supply Chain trades with its suppliers over the Peppol network, and many trusts adopted Peppol under the Department of Health's 2014 eProcurement Strategy. From **April 2029**, every VAT invoice to a public body will have to be an e-invoice. Peppol is confirmed as the UK's network, so NHS suppliers who are already connected start well ahead.
This guide sets out what is confirmed today, what the mandate adds, and what is still open.
## Where NHS Peppol came from
The Department of Health published the [NHS e-procurement strategy](https://www.gov.uk/government/publications/nhs-e-procurement-strategy) in May 2014. It set two standards for NHS procurement:
- **GS1** for product data and location identifiers, such as Global Location Numbers (GLNs)
- **Peppol** for purchase orders, advance shipping notes and invoices
The strategy did not make this a tax rule. It applied through contracts. The 2014/15 NHS Standard Contract required providers to comply with the strategy, and acute NHS trusts (foundation and non-foundation) had to draw up and start a GS1 and Peppol adoption plan approved by their board. Suppliers were told to plan for receiving Peppol purchase orders and sending advance shipping notes and invoices. The model was [four-corner](https://einvoices.uk/news/four-corner-model-explained): each trust and each supplier picks its own [Access Point](https://einvoices.uk/glossary#access-point), and pays only its own provider.
## Who runs Peppol for the NHS today
OpenPeppol's country profile for England NHS says:
- The **formal Peppol Authority agreement** is still between OpenPeppol and the **Department of Health and Social Care (DHSC)**.
- **Day-to-day operation** of the Peppol Authority has passed to **Supply Chain Coordination Ltd (SCCL)**, which owns and runs NHS Supply Chain.
- OpenPeppol, as Coordinating Authority, holds the agreements with Peppol service providers based in the UK.
- NHS Supply Chain sends purchase orders and receives despatch advice and invoices over Peppol, and says all its suppliers use Peppol to exchange documents with it.
That last point matters. If NHS Supply Chain is your customer, Peppol is already part of how you do business with it, whatever the 2029 rules turn out to be.
## The legal floor: trusts must accept compliant e-invoices
Separately from NHS policy, public procurement law already gives you a right to e-invoice. Under [section 67 of the Procurement Act 2023](https://www.legislation.gov.uk/ukpga/2023/54/section/67), every public contract carries an implied term that the contracting authority must accept and process an undisputed e-invoice in the "required electronic form". That means it complies with BS EN 16931-1:2017 and uses one of the listed syntaxes. Peppol BIS Billing 3.0 is built on [EN 16931](https://einvoices.uk/news/en-16931-explained).
Two qualifications:
- The authority **may require you to use a particular system** for e-invoices (s.67(6)). A trust can tell you to send through Peppol or through its own portal.
- The Act applies to contracts awarded under it from 24 February 2025. Older contracts carry the equivalent term from the Public Contracts Regulations 2015. See our explainer on the [2019 e-invoicing regulations](https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019).
## Scotland, Wales and Northern Ireland
The 2014 strategy applied to **England**. Elsewhere:
- **Scotland.** NHS Scotland bodies have been under Scottish law since **18 April 2019**. The Electronic Invoicing (Public Contracts etc.) Amendment (Scotland) Regulations 2019 implied an e-invoice acceptance term into their public contracts from that date, a year before most other Scottish authorities. The Procurement Act 2023 does not apply to devolved Scottish authorities.
- **Wales and Northern Ireland.** Health bodies are covered by the Procurement Act 2023, including the section 67 term. NHS Peppol policy in these nations is not the same as England's, so check with each buyer what it expects.
## What changes in April 2029
| | Today | From April 2029 |
|---|---|---|
| Legal basis | Contract terms (NHS Standard Contract, buyer requirements) and procurement law | Requirement to issue VAT invoices as e-invoices (B2G is in scope) |
| Who must act | The NHS buyer must accept a compliant e-invoice. The supplier chooses whether to send one, unless the contract says otherwise | The supplier must issue its VAT invoices as e-invoices |
| Network | Peppol is widely used, alongside portals and PDF | Peppol confirmed as the core interoperability network |
| Reporting to HMRC | None | None at launch: no real-time reporting |
The government [has announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK". For an NHS supplier already on Peppol, that is the best possible outcome: the connection you have is the one the national regime will use.
## What is not yet confirmed
- **The UK data standard.** Nobody yet knows whether the UK will use Peppol BIS Billing 3.0 unchanged or publish a UK [CIUS](https://einvoices.uk/glossary#cius) with extra rules. NHS invoices that pass today's Peppol validation may need small changes.
- **Identifiers.** NHS e-procurement was built on GS1 GLNs. Peppol identifies GLNs with scheme **0088**. The UK may standardise on another identifier, such as the VAT-number scheme 9932, or allow several. See [Peppol EAS codes 9932 and 0088](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
- **Purchase orders and other documents.** The mandate is about VAT invoices. Peppol orders, order responses and despatch advice stay NHS business requirements.
- **Governance.** It has not been said how NHS Peppol governance will fit with a national [Peppol Authority](https://einvoices.uk/news/peppol-authority-uk) for the mandate.
These are the kinds of details expected in the roadmap due at Budget 2026 on 28 October 2026.
## Practical points for NHS suppliers
- **Don't run two invoice copies.** HMRC's [Electronic invoicing notice (700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063) says that sending paper and electronic invoices for the same supplies is a "dual system", which is allowed only during a controlled trial. If you send over Peppol, stop also emailing a PDF copy as the invoice.
- **Match the order.** NHS buyers match invoices to Peppol purchase orders. Quote the order reference exactly, as many rejections come down to a missing or mistyped reference. See [buyer reference and PO reference](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
- **Keep your GLNs and Peppol registration current.** Check that your entry in the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk) is correct and points at the right Access Point.
- **Read your Invoice Responses.** If your Access Point supports it, a [Peppol Invoice Response](https://einvoices.uk/news/peppol-invoice-response-message-level-response) can tell you quickly whether a trust has accepted, queried or rejected an invoice.
## What to do now
1. List your NHS customers and how each one wants to receive invoices today: Peppol, a portal or email.
2. If you are not on Peppol yet, talk to your accounting or ERP provider about connecting through an Access Point. You will need it for all your B2B and B2G customers by 2029 anyway. Our guide to [choosing an Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point) explains what to ask.
3. Watch for the roadmap on 28 October 2026. Then compare its data requirements with what your NHS invoices already carry.
For the wider picture, see the [mandate guide](https://einvoices.uk/mandate), the [timeline](https://einvoices.uk/timeline) and [What is Peppol?](https://einvoices.uk/news/what-is-peppol).
## Frequently asked questions
### Do NHS suppliers have to use Peppol?
Today it depends on who you sell to. NHS Supply Chain trades with its suppliers over Peppol, and many NHS trusts in England ask for it under the 2014 NHS eProcurement Strategy. It is a contract requirement rather than a tax rule. From April 2029, VAT invoices to public bodies must be e-invoices, and Peppol is the confirmed network.
### Who is the Peppol Authority for the NHS?
OpenPeppol says the formal Peppol Authority agreement is still between OpenPeppol and the Department of Health and Social Care. Day-to-day operation has passed to Supply Chain Coordination Ltd, which runs NHS Supply Chain.
### Can an NHS trust refuse my e-invoice?
Under section 67 of the Procurement Act 2023, a contracting authority must accept and process an undisputed e-invoice that meets the EN 16931 standard. It can still ask you to use a particular system to send it.
### What Peppol ID do NHS suppliers use?
NHS e-procurement was built around GS1 Global Location Numbers, which Peppol identifies with scheme 0088. Which identifiers the UK-wide mandate will use has not been confirmed.
---
How to cite: "NHS Peppol invoicing: what suppliers need to know", einvoices.uk, 20 October 2026, https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Who is the UK Peppol Authority? Past, present and 2029
> There is no UK-wide Peppol Authority today. OpenPeppol lists SCCL for England's NHS, and UK providers sign with OpenPeppol. The 2029 role is not yet decided.
- Canonical URL: https://einvoices.uk/news/peppol-authority-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, NHS, 2029 mandate, Public sector
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol Authorities - OpenPeppol](https://peppol.org/about/peppol-authorities/)
- [England NHS - OpenPeppol](https://peppol.org/learn-more/country-profiles/england-nhs/)
- [Peppol Interoperability Framework - OpenPeppol](https://peppol.org/learn-more/peppol-interoperability-framework/)
- [Peppol Certified Service Providers - OpenPeppol](https://peppol.org/members/peppol-certified-service-providers/)
- [NHS eProcurement Strategy (Department of Health, April 2014)](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/344574/NHS_eProcurement_Strategy.pdf)
- [Fedict, Department of Health become PEPPOL authorities (The Paypers, 19 April 2016)](https://thepaypers.com/fintech/news/fedict-department-of-health-become-peppol-authorities)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
As of 20 October 2026, there is **no UK-wide Peppol Authority**. OpenPeppol's official list has one UK entry: **England, National Health Service**, operated by **Supply Chain Coordination Ltd (SCCL)**, with the formal legal agreement still held by the **Department of Health and Social Care (DHSC)**. For all other purposes, UK service providers contract with **OpenPeppol** itself, acting as the Peppol Coordinating Authority. Whether the UK will appoint a national authority for the 2029 mandate has not been announced.
## What a Peppol Authority is
Peppol is governed through a set of agreements. OpenPeppol sits at the top as the **Peppol Coordinating Authority**. In its words, it "may delegate authority over the implementation and use of the Peppol Network" to national Peppol Authorities.
According to OpenPeppol:
- Peppol Authorities "are typically, but not exclusively, government institutions".
- They "ensure that Peppol Service Providers operate in accordance with the Peppol Service Provider Agreement".
- Service providers generally sign with the Peppol Authority in their home jurisdiction. Where there is none, they sign with OpenPeppol, which "also acts as the Peppol Authority in jurisdictions where no Peppol Authority exists".
- An authority can add national rules, called **Peppol Authority Specific Requirements (PASR)**. These are incorporated into its agreement after formal approval by OpenPeppol's Managing Committee.
## The UK position today
**CONFIRMED (OpenPeppol):**
| What | Detail |
|---|---|
| Listed UK entry | England, National Health Service: Supply Chain Coordination Ltd (SCCL) |
| Legal agreement | "continues between OpenPeppol and DHSC" |
| Day-to-day operation | "transferred from the Department for Health and Social Care (DHSC) to Supply Chain Coordination Ltd (SCCL)" |
| UK service providers | "Legal agreements with UK-domiciled SPs are held by OpenPeppol as the Peppol Coordinating Authority" |
| Certified provider list | UK-resident providers show **OpenPeppol** as their Peppol Authority (list updated 19 October 2026) |
OpenPeppol's England NHS profile says it was written after "a period of uncertainty" about the authority for NHS England, to "clarify the current arrangements". It gives no date for the transfer to SCCL. SCCL owns and operates NHS Supply Chain, which, according to the same page, exchanges orders, despatch advice and invoices with suppliers over Peppol.
There are no separate entries for Scotland, Wales or Northern Ireland on the list.
## How it started
- **April 2014:** the Department of Health's **NHS eProcurement Strategy** adopted GS1 coding and Peppol messaging across the NHS and its suppliers. It set out a four-corner model in which each NHS provider and each supplier picks its own Access Point. It also said "There are no fees payable between access points".
- **2015 to 2016 (REPORTED):** trade press reported in April 2016 that "the Department of Health finalized last year the legal agreements to establish a PEPPOL Authority", taking responsibility for governing the network for NHS trusts.
- **Later:** day-to-day operation moved to SCCL, and the legal agreement stayed with DHSC (OpenPeppol, no date given).
So the UK's Peppol Authority has always been **health-sector specific**. It was never a national authority for B2B invoicing.
## What other countries do
When a country uses Peppol for a tax mandate, the authority role often sits with a government body. OpenPeppol's list includes, for example:
| Country | Peppol Authority listed |
|---|---|
| Australia | Australian Tax Office (ATO) |
| Belgium | BOSA |
| France | Directorate General of Public Finances (DGFIP) |
| Germany | KoSIT |
| Ireland | Office of Government Procurement (OGP) |
| Singapore | IMDA |
| United Arab Emirates | Ministry of Finance |
These are examples only. They do not tell us what the UK will do.
## Why it matters for 2029
A UK Peppol Authority could:
- sign agreements with UK service providers and supervise them
- set **UK-specific requirements** (PASR), for example which identifier schemes to use, how VAT data must be validated, or reporting duties
- be the formal link between UK policy and OpenPeppol's rules
Without one, OpenPeppol remains the counterparty for UK providers, and UK-specific rules would have to come through legislation, HMRC guidance or a UK specification ([CIUS](https://einvoices.uk/glossary#cius)) instead.
## What is not settled
**CONFIRMED:** the government "has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK" (Tax Update summary, 23 June 2026).
**NOT YET CONFIRMED (as of 20 October 2026):**
- whether the UK will establish a national Peppol Authority for the mandate
- which body would take the role (HMRC, the Department for Business and Trade or another body)
- what happens to the existing NHS arrangement
- whether there will be UK PASR
We found no official statement on any of these points. The implementation roadmap is due at Budget 2026 on 28 October 2026.
## What to do now
1. **NHS suppliers:** carry on as you are. Nothing announced so far changes the NHS Peppol arrangements.
2. **Everyone else:** choose a provider from OpenPeppol's certified list. Today, UK providers' Peppol agreements sit with OpenPeppol.
3. Watch the roadmap for any announcement of a UK Peppol Authority and UK-specific requirements. We will update this page.
Related: [What is Peppol?](https://einvoices.uk/news/what-is-peppol) and [NHS Peppol e-invoicing for suppliers](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers).
## Frequently asked questions
### Who is the UK Peppol Authority?
There is no UK-wide Peppol Authority as of 20 October 2026. OpenPeppol lists an England entry for the National Health Service, operated by Supply Chain Coordination Ltd (SCCL), while the formal agreement remains with the Department of Health and Social Care. For other UK service providers, OpenPeppol acts as the authority.
### Is HMRC the Peppol Authority?
No, not as of 20 October 2026. The government has confirmed Peppol as the core network for UK e-invoicing but has not announced a UK Peppol Authority. HMRC is not on OpenPeppol's list of Peppol Authorities.
### Who was the Peppol Authority for the NHS?
The Department of Health set up a Peppol Authority for the NHS following its 2014 eProcurement Strategy. OpenPeppol says day-to-day operation was later transferred from DHSC to SCCL, which owns and operates NHS Supply Chain.
### What does a Peppol Authority do?
It makes sure Peppol service providers in its jurisdiction operate in line with the Peppol Service Provider Agreement, and it can add national requirements (PASR), which apply once approved by OpenPeppol's Managing Committee.
---
How to cite: "Who is the UK Peppol Authority? Past, present and 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-authority-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol BIS Billing 3.0: a guide for UK businesses
> Peppol BIS Billing 3.0 is the invoice and credit note format used on Peppol. What it contains, the rules UK invoices trip on, current versions and UK unknowns.
- Canonical URL: https://einvoices.uk/news/peppol-bis-billing-3-uk-guide
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Technical, Validation, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol BIS Billing](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Release notes for Peppol BIS Billing v3](https://docs.peppol.eu/poacc/billing/3.0/release-notes/)
- [Peppol BIS Billing 3.0 - Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [Peppol BIS Billing 3.0 - Electronic Address Scheme (EAS)](https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
**Peppol BIS Billing 3.0** is the specification that sets out what an invoice or credit note must look like when it is sent over Peppol. It takes the European e-invoicing standard [EN 16931](https://einvoices.uk/news/en-16931-explained), narrows it with Peppol's own rules (it is a [CIUS](https://einvoices.uk/glossary#cius)), and is normally written in [UBL](https://einvoices.uk/news/ubl-vs-cii-uk) 2.1 XML. If you send e-invoices to the NHS or to customers on Peppol today, this is almost certainly the format your software produces.
## The identifiers that mark a BIS Billing 3.0 invoice
Every BIS Billing 3.0 invoice carries two header values:
```xml
urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0
urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
```
Rule PEPPOL-EN16931-R004 checks the CustomizationID: it must start with that value and must not carry a syntax version suffix such as `::2.1`. Since release 3.0.21, an optional second profile, `urn:peppol:bis:billing_with_response`, signals that the buyer will always send an [Invoice Response](https://einvoices.uk/news/peppol-invoice-response-message-level-response).
## Versions and releases
BIS Billing 3.0 is updated regularly; recent releases came in November 2025 and May 2026. Each release has a publication date and a later "mandatory to use from" date:
| Release | Published | Mandatory from | Notable for UK users |
|---|---|---|---|
| 3.0.20 | 24 Nov 2025 | 23 Feb 2026 | Removed text saying attaching a PDF copy of the invoice was not compliant |
| 3.0.20-hotfix | 27 Jan 2026 | 23 Feb 2026 | New EAS/ICD code for Slovakia |
| 3.0.21 | 20 May 2026 | 17 Aug 2026 | New optional "billing with response" profile; rule R004 tightened |
Your provider should keep up with releases. Ask which version it validates against.
## What a UK invoice must contain
EN 16931 sets the core content (invoice number, dates, seller and buyer, lines, totals and VAT breakdown). BIS Billing 3.0 adds rules on top. The ones UK senders most often miss:
| Requirement | Rule | UK tip |
|---|---|---|
| Buyer reference **or** purchase order reference | PEPPOL-EN16931-R003 (fatal) | Many UK buyers do not give a reference. Agree one (for example a PO or cost centre) or use the order number. See [buyer reference BT-10](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol). |
| Seller electronic address | PEPPOL-EN16931-R020 (fatal) | Your Peppol ID, for example `schemeID="9932"` `GB123456789` (made up) |
| Buyer electronic address | PEPPOL-EN16931-R010 (fatal) | The customer's Peppol ID, exactly as registered |
| Valid EAS scheme | PEPPOL-EN16931-CL008 (fatal) | Use 9932, 0088 and so on, never a made-up "GB" or "VAT" |
| VAT identifier prefix | BR-CO-09 (fatal) | `GB123456789` (or `XI…` for NI goods trade with the EU) |
| GLN check digit | PEPPOL-COMMON-R040 (fatal) | Validate GLNs (0088) before use |
| Only one document-level note | PEPPOL-EN16931-R002 (fatal) | Merge free-text notes |
| No empty elements | PEPPOL-EN16931-R008 (fatal) | Common with in-house XML exports |
| Totals add up | EN 16931 BR-CO rules | See [BR-CO-15](https://einvoices.uk/news/peppol-validation-error-br-co-15) |
A failure on any **fatal** rule means the invoice is rejected. You will receive a negative Message Level Status from the buyer's provider, or your own provider will block the invoice before sending.
## VAT in BIS Billing 3.0
Each line and each VAT breakdown carries a **VAT category code** and a rate. For UK use the main ones are **S** (standard rate, with the percentage, for example 20), **Z** (zero rated), **E** (exempt, with an exemption reason), **AE** (reverse charge, for example construction services) and **O** (outside scope). How UK-specific situations such as the domestic reverse charge should be coded is covered in [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
Currency is any ISO 4217 code. GBP invoices are routine. If the invoice is in another currency, the VAT total in GBP (the VAT accounting currency) can be given too, subject to rules R005 and R054. See [Multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
## Minimal skeleton (illustrative)
```xml
urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0
urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
INV-1001
2026-10-20
380
GBP
PO-4711
GB123456789
...
...
```
For a full worked file, see [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
## Is there anything UK-specific in it today?
No. Appendix C of the BIS lists **national rules** "provided by each country's Peppol Authority", applied by the seller's country. Rules exist for Germany, Denmark, Greece, Iceland, Italy, the Netherlands, Norway and Sweden. **There are none for the UK.** The EAS code list contains 9932 (UK VAT number), but there is no UK validation of it.
## What is confirmed and what is not
**CONFIRMED:**
- Peppol will be the core interoperability network for UK e-invoicing (GOV.UK, 23 June 2026).
- The mandate covers B2B and B2G VAT invoices from April 2029.
- Bodies covered by the Public Procurement Act 2023 must already accept e-invoices that comply with BS EN 16931, as the government's November 2025 consultation response notes.
**NOT YET CONFIRMED (as of 20 October 2026):**
- Whether BIS Billing 3.0 will be *the* UK format, or whether a UK CIUS or extra UK rules will apply
- Whether UBL only, or CII as well, will be accepted (see [UBL vs CII](https://einvoices.uk/news/ubl-vs-cii-uk))
- UK rules on identifiers, VAT codes for UK-specific schemes, self-billing and attachments
The implementation roadmap is due at Budget 2026 on 28 October.
## What to do now
1. Ask your software provider whether it produces BIS Billing 3.0 invoices **and** credit notes, and which release it validates against.
2. Run a few real invoices through your provider's validator and fix any fatal errors.
3. Clean your customer master data. Peppol IDs, VAT numbers and buyer references are the usual problems. See [Master data clean-up](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
4. Track the roadmap. If a UK CIUS appears, it is likely to build on EN 16931, so work done now on BIS Billing 3.0 should carry over.
## Frequently asked questions
### What is Peppol BIS Billing 3.0?
It is OpenPeppol's specification for invoices and credit notes on the Peppol network. It is a CIUS of the European standard EN 16931, normally expressed in UBL 2.1 XML, and it adds Peppol-specific rules to the standard.
### Will the UK use Peppol BIS Billing 3.0 for the 2029 mandate?
Not confirmed. Peppol is confirmed as the core network, but the government has not yet said whether UK invoices must follow BIS Billing 3.0 as it stands, a UK-specific version, or another Peppol specification.
### What is the latest version of Peppol BIS Billing 3.0?
As of 20 October 2026 the current release is 3.0.21 (published 20 May 2026, mandatory from 17 August 2026). Recent releases have been published in May and November.
### Are there UK-specific rules in Peppol BIS Billing 3.0?
No. National rules exist for countries such as Germany, Denmark, Greece, Iceland, Italy, the Netherlands, Norway and Sweden, but there are none for the UK.
### Can I send a UK invoice in GBP with VAT at 20%?
Yes. BIS Billing 3.0 supports any ISO 4217 currency, including GBP, and the standard-rate VAT category S with the rate given as a percentage.
---
How to cite: "Peppol BIS Billing 3.0: a guide for UK businesses", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-bis-billing-3-uk-guide
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How to check if a UK company is on Peppol
> Search the free Peppol Directory by company name or Peppol ID. A missing listing does not prove a business is not on Peppol; here is how to check properly.
- Canonical URL: https://einvoices.uk/news/peppol-directory-lookup-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Technical, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol Directory - Search](https://directory.peppol.eu/public)
- [Peppol Directory v1.1.1](https://docs.peppol.eu/edelivery/directory/PEPPOL-EDN-Directory-1.1.1-2020-10-15.pdf)
- [Peppol Service Metadata Locator (SML) v1.3.0](https://docs.peppol.eu/edelivery/sml/Peppol-EDN-Service-Metadata-Locator-1.3.0-2025-02-06.pdf)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [OpenPeppol eDEC Specifications](https://docs.peppol.eu/edelivery/)
---
The quickest way to check whether a UK company is on Peppol is to search the free **Peppol Directory** at directory.peppol.eu. You can search by company name or by Peppol ID, for example `9932:gb123456789` (a made-up ID). But the Directory is voluntary, so "not found" does not prove a business is not on Peppol. The definitive check is an SMP lookup, which your service provider can do.
## What the Peppol Directory is
The Peppol Directory is a central search service run by OpenPeppol. It collects "business cards" from the SMPs, the registries that record which documents each participant can receive. OpenPeppol's specification explains why it exists: without it, "there are no shared models on how to know the Peppol Participant ID" of a trading partner.
The important limitation is in the same document. Business cards are published "on a voluntary basis meaning that SMP providers can (but are not forced to) publish their client's metadata". Each SMP must support the interface, but publishing is optional.
## Step by step: searching the Directory
1. Go to **directory.peppol.eu**.
2. Type a **company name**, a **VAT number** or a **full Peppol ID**. Searching for the ID (`9932:gb123456789`) is the most precise. Names often vary ("Ltd" or "Limited", trading names, old names).
3. Use the **country filter** if offered. UK businesses appear with country **GB**.
4. Open the result and check:
- **Participant ID:** the exact scheme and value to use in your invoices' buyer EndpointID
- **Entity name and country**
- **Document types:** look for the Peppol BIS Billing 3.0 invoice and credit note
- **Registration date**, where shown
## Reading a result
A typical UK result looks like this (fictional):
| Field | Example |
|---|---|
| Participant ID | `iso6523-actorid-upis::9932:gb123456789` |
| Entity name | ACME WIDGETS LIMITED |
| Country | GB |
| Document types | BIS Billing 3.0 invoice and credit note (the page may show a friendly name or the full identifier) |
The full invoice document type identifier is:
```
urn:oasis:names:specification:ubl:schema:xsd:Invoice-2::Invoice##urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0::2.1
```
If only the invoice type is listed, the business may not be able to receive credit notes over Peppol. Check before you need to send one. Some listings show only response messages, such as the Message Level Response (`...ApplicationResponse##urn:fdc:peppol.eu:poacc:trns:mlr:3::2.1`). That does not mean the business can receive invoices.
Country data is entered by providers and is not always tidy. We saw UK businesses listed with the non-standard code `UK` as well as `GB`.
## What we saw for the UK (20 October 2026)
A search of the Directory for country GB on 20 October 2026 returned more than 22,000 business cards. Among the results we sampled, most used scheme **9932** (UK VAT number), with a smaller number using **0088** (GS1 GLN) and other schemes. Within 9932, most values were `gb` followed by nine digits, but some had no prefix. That is why searching by VAT number alone can miss a match. Try both `9932:gb123456789` and `9932:123456789`.
These are our own observations from the public search, not official statistics.
## If the company is not listed
A missing listing can mean:
- the business is on Peppol but its provider does not publish business cards
- it is registered under a scheme you did not try (for example a GLN rather than a VAT number)
- its name is listed differently
- it is genuinely not on Peppol yet
The reliable test is a **lookup through the SML and SMP**, the same steps an Access Point performs before every send. Under the SML specification, the sender builds a DNS name from a hash of the recipient's ID, queries it, and gets back the address of the recipient's SMP. If no SMP is registered, the business cannot receive anything over Peppol under that ID. Your Access Point provider can run this check for you. Many providers' portals do it automatically when you add a customer. See [Peppol SMP and SML explained](https://einvoices.uk/news/peppol-smp-sml-explained).
## Checking your own listing
It is worth checking how **your** business appears:
- Is your participant ID exactly what you tell customers?
- Is the name your legal name, as customers will search for it?
- Are both invoice and credit note listed?
- If you have more than one ID (VAT-based and GLN), are both registered?
If anything is wrong, ask your provider to correct the business card. Only the SMP holding your registration can publish or change it.
## For finance teams: checking at scale
If you have hundreds of suppliers or customers, manual searches will not scale. The Directory has a public search interface that returns JSON, and many providers offer bulk lookup tools. Keep your volumes reasonable and follow any usage terms on the Directory site. Store the result (scheme, value, document types, date checked) in your master data, and re-check periodically. Businesses change providers and IDs.
## What is not settled
The UK has confirmed Peppol as the core network for the [2029 mandate](https://einvoices.uk/mandate). It has **not** said:
- whether UK participants will be required to publish a Directory business card
- whether there will be a UK-specific directory or register of Peppol IDs
- which identifier scheme UK businesses must register under
## What to do now
1. Look up your own business in the Directory and fix anything wrong.
2. Check your top customers and suppliers, and record their exact Peppol IDs.
3. For anyone not found, ask your provider to run an SMP lookup before concluding they are not on Peppol.
4. Read [Peppol ID UK](https://einvoices.uk/news/peppol-participant-id-uk) for how IDs are built.
## Frequently asked questions
### How do I check if a company is on Peppol?
Search the Peppol Directory at directory.peppol.eu by company name or Peppol ID, such as 9932:gb123456789. If nothing is found, ask your service provider to run an SML/SMP lookup, because Directory listings are voluntary.
### Is the Peppol Directory complete?
No. The Peppol Directory specification says business cards are published on a voluntary basis: SMP providers can, but are not forced to, publish their clients' details. A business can be reachable on Peppol without appearing in the Directory.
### Is the Peppol Directory free?
Yes. The public search at directory.peppol.eu can be used without an account, and there is also a public search interface for automated lookups.
### Does a Directory listing mean the company can receive invoices?
Not necessarily. Check the document types listed. A business that is registered only for orders, for example, cannot receive a BIS Billing 3.0 invoice.
---
How to cite: "How to check if a UK company is on Peppol", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-directory-lookup-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol scheme 9932 and 0088: EAS codes for UK businesses
> 9932 is the Peppol scheme code for a UK VAT number and 0088 is a GS1 Global Location Number. How each is used, where it goes in the invoice and what to avoid.
- Canonical URL: https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Technical, Validation
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [Peppol BIS Billing 3.0 - Electronic Address Scheme (EAS)](https://docs.peppol.eu/poacc/billing/3.0/codelist/eas/)
- [Peppol BIS Billing 3.0 - ISO 6523 ICD list](https://docs.peppol.eu/poacc/billing/3.0/codelist/ICD/)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [Peppol BIS Billing 3.0 - Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [NHS eProcurement Strategy (Department of Health, April 2014)](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/344574/NHS_eProcurement_Strategy.pdf)
---
**9932** is the Peppol scheme code for a **United Kingdom VAT number**, and **0088** is the code for a **GS1 Global Location Number (GLN)**. Both are valid ways to build a Peppol ID and to fill the electronic address (EndpointID) on a Peppol invoice: `9932:gb123456789` or `0088:5012345000008` (both made-up examples).
## The official entries
From the Peppol participant identifier scheme code list, version 9.7 (2 July 2026):
| Code | Scheme ID | Name | Country | Structure / validation | State |
|---|---|---|---|---|---|
| 9932 | GB:VAT | United Kingdom VAT number | GB | None specified | active |
| 0088 | GLN | Global Location Number | international | 13 digits incl. check digit; RegEx `[0-9]{13}`, mod10 (weights 1, 3) | active |
| 0060 | DUNS | D-U-N-S Number | international | RegEx `[0-9]{9}` | active |
| 0199 | LEI | Legal Entity Identifier | international | RegEx `[A-Z0-9]{18}[0-9]{2}`, mod97-10 | active |
| 0209 | GS1 | GS1 identification keys | international | See GS1 standard for ICD 0209 | active |
9932 was added in code list release 1.1.0. Its entry has no example, no structure and no validation rule. Nothing in the list itself says whether the `GB` prefix belongs in the value.
## Why 9932 starts with "99"
Peppol's codes mostly come from the ISO 6523 International Code Designator (ICD) list. Where no ISO code exists, OpenPeppol issues its own number from 9900 upwards. The Policy for use of Identifiers calls codes starting with 99 "extended values" (POLICY 6). 9932 is one of these: a Peppol-issued code, not an ISO 6523 code.
That matters because the two code lists are used in different places.
## EAS vs ICD: where each code goes
Peppol BIS Billing 3.0 uses two lists:
- **EAS (Electronic Address Scheme)**, maintained under the Connecting Europe Facility. It is used for `cbc:EndpointID/@schemeID`, the seller's (BT-34) and buyer's (BT-49) electronic address. **It includes 9932 and 0088.**
- **ISO 6523 ICD list.** It is used for `cac:PartyIdentification/cbc:ID/@schemeID` (for example the seller identifier, BT-29) and the optional scheme on legal registration IDs. **It includes 0088 but not 9932.**
The identifier policy is explicit. For EndpointID, extended values starting with 99 "MAY be used" (POLICY 9). For party identifiers, they "MUST NOT be used" (POLICY 14).
### Correct
```xml
GB123456789
5012345000008
...
GB123456789
VAT
```
### Wrong
```xml
GB123456789
```
Note that the seller's VAT identifier (BT-31) goes in `PartyTaxScheme/CompanyID` with its country prefix and no scheme code. EN 16931 rule BR-CO-09 requires that prefix. The EndpointID and the VAT number can hold the same digits, but they do different jobs: one routes the invoice, the other is tax data.
## 9932 in practice
When we searched the Peppol Directory on 20 October 2026, 9932 was by far the most common scheme among UK (GB) registrations. Most values used a lower-case `gb` followed by nine digits, for example `9932:gb123456789`. A minority used nine digits with no prefix. Since IDs are case insensitive, `GB` and `gb` are the same, but **with and without the prefix are different IDs**.
Practical rules for 9932:
- No spaces or punctuation: `gb123456789`, not `GB 123 4567 89`.
- Copy exactly how your customer is registered. Do not "correct" it.
- If you register yourself, ask your provider what convention it uses and whether it can register both forms.
## 0088 (GLN) in practice
A GLN is a 13-digit number issued through GS1. It identifies a legal entity or a location, such as a hospital's goods-in point. The Department of Health's NHS eProcurement Strategy (April 2014) adopted GS1 coding and Peppol messaging across the NHS. It said the GS1 system "includes Global Location Numbers (GLNs)" and planned a GLN for each NHS provider and each supplier.
Unlike 9932, GLNs **are** validated. Peppol rule PEPPOL-COMMON-R040 ("GLN must have a valid format according to GS1 rules") is fatal. A GLN with a wrong check digit will be rejected.
**Worked check digit.** For the illustrative GLN 501234500000?, multiply the 12 digits from the right alternately by 3 and 1, then add them up. That gives 32. The check digit is the amount needed to reach the next multiple of 10, so 8, and the full GLN is `5012345000008`.
## Which should you use?
| Your situation | Likely ID | Status |
|---|---|---|
| VAT-registered UK business, general B2B | 9932 (VAT-based) | Common practice; not yet mandated |
| NHS supplier or NHS body | 0088 (GLN), often alongside 9932 | Established in NHS procurement |
| Multinational with D-U-N-S or LEI | 0060 or 0199 possible | Allowed; check customers can address it |
| Northern Ireland business | 9932; no separate XI code exists | See [Peppol ID Northern Ireland](https://einvoices.uk/news/peppol-id-northern-ireland-xi) |
| Isle of Man business | 9932; no IM code exists | See [Peppol ID Isle of Man](https://einvoices.uk/news/peppol-id-isle-of-man) |
**Not yet confirmed:** the government has not said which scheme(s) the 2029 mandate will require, whether 9932 values should carry the `GB` prefix, or whether new UK codes will be requested. Expect this in the roadmap or the technical specifications that follow it.
## What to do now
1. Check which scheme and value your provider has registered for you.
2. Hold scheme code and value in separate fields in your customer master data.
3. Never put 9932 in PartyIdentification. Use 0088, or leave the scheme out.
4. If you use GLNs, test the check digit before you send.
Related: [Peppol participant IDs in the UK](https://einvoices.uk/news/peppol-participant-id-uk) and [Peppol BIS Billing 3.0 for UK businesses](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide).
## Frequently asked questions
### What is Peppol scheme 9932?
9932 is the code for 'United Kingdom VAT number' (GB:VAT) in the Peppol participant identifier scheme list and the EAS code list. A Peppol ID such as 9932:gb123456789 is based on a UK VAT registration number.
### What is 0088 in Peppol?
0088 is the code for a GS1 Global Location Number (GLN), a 13-digit number with a check digit. It is widely used in NHS procurement, where the Department of Health's 2014 eProcurement Strategy adopted GS1 and Peppol standards.
### What is the difference between EAS and ICD codes?
EAS codes are used for electronic addresses (the EndpointID that routes the invoice) and include Peppol-only codes starting with 99, such as 9932. ICD codes are used for other party identifiers such as BT-29, and the 99xx codes must not be used there.
### Can I use 9932 in PartyIdentification?
No. Peppol's identifier policy says extended values starting with 99 must not be used for party identifiers, and 9932 is not on the ISO 6523 ICD list used for that element. Use 9932 only for the EndpointID.
### Is 9932 validated?
The code list gives no structure or validation rule for 9932, and Peppol BIS Billing 3.0 has no format check for it, unlike GLN (0088), which is checked by rule PEPPOL-COMMON-R040.
---
How to cite: "Peppol scheme 9932 and 0088: EAS codes for UK businesses", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol ID Isle of Man: which identifier to use
> There is no Isle of Man Peppol scheme. Manx VAT-registered businesses use 9932 (UK VAT number) with their 00-prefixed number, e.g. 9932:gb001234567.
- Canonical URL: https://einvoices.uk/news/peppol-id-isle-of-man
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Isle of Man, Peppol, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [VATREG45100 - The Isle of Man register: the register - HMRC internal manual - GOV.UK](https://www.gov.uk/hmrc-internal-manuals/vat-registration-manual/vatreg45100)
- [VATPOSG2300 - Background: territory of the United Kingdom - HMRC internal manual - GOV.UK](https://www.gov.uk/hmrc-internal-manuals/vat-place-of-supply-goods/vatposg2300)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [Peppol Directory - Search](https://directory.peppol.eu/public)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
There is **no Isle of Man scheme** in the Peppol identifier code list. A VAT-registered Isle of Man business would normally use scheme **9932 (United Kingdom VAT number)** with its Manx VAT number, for example `9932:gb001234567` (a made-up number). If you have a GS1 Global Location Number, `0088` is an alternative.
## Why a Manx business uses the UK VAT scheme
Two facts from HMRC's own manuals explain it:
- **Single VAT area.** HMRC's place of supply manual says: "Isle of Man – although outside the UK, it is treated as part of the UK for VAT purposes", and "VAT is chargeable under Manx law which generally parallels UK legislation."
- **Same number series.** HMRC's VAT registration manual says the Isle of Man keeps its own register, "separate from the UK register". But "numbers on the Isle of Man register are in the same nine-digit series as UK registration numbers, but are identified by the first two digits being '00'."
Peppol's code list (version 9.7, July 2026) has one VAT scheme for this number series: **9932, GB:VAT, "United Kingdom VAT number"**. There is no entry with country IM. So 9932 is the scheme that fits a Manx VAT number.
## What the Directory shows
We searched the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk) on 20 October 2026:
- A search by country code **IM returned no results**.
- A search for IDs beginning `9932:gb00` returned a small number of registrations, all listed with country **GB**. These appear to be VAT numbers from the Isle of Man series.
So in practice, Manx businesses already on Peppol show up as 9932 participants under GB. That is a description of current practice, not an official rule.
## Building your Isle of Man Peppol ID
| Step | Example (fictional) |
|---|---|
| Your VAT number as printed | GB 001 2345 67 |
| Remove spaces | GB001234567 |
| Add the scheme code | 9932:GB001234567 |
| As usually displayed (case insensitive) | 9932:gb001234567 |
| Full form used in SMP lookups | iso6523-actorid-upis::9932:gb001234567 |
On a Peppol BIS Billing 3.0 invoice, the electronic address looks like this:
```xml
GB001234567
```
Your VAT identifier (BT-31) goes in `PartyTaxScheme/CompanyID` with its prefix, typically `GB001234567`. Your postal address country (`cac:Country/cbc:IdentificationCode`) can be `IM`.
Watch the **prefix convention**. The code list does not say whether 9932 values carry the `GB` prefix. Most UK registrations do (`9932:gb...`), but some do not. `9932:gb001234567` and `9932:001234567` are different IDs. Check with your provider, and tell customers the exact form.
## "Primary party ID" and other labels
Software and onboarding forms use various labels: *Peppol ID*, *participant ID*, *endpoint ID*, *electronic address*, *primary party ID*. They usually mean the same thing: the scheme code and identifier your invoices are addressed to. For an Isle of Man business:
- **Scheme / EAS / ICD field:** `9932`, or `0088` if using a GLN
- **Identifier field:** `GB001234567` (no spaces)
If a form offers an "IM" or "Isle of Man VAT" option as a Peppol scheme, it is not part of the official Peppol code list. Ask the provider what it maps to.
## Not VAT-registered?
If your Isle of Man business is not VAT-registered, you have no number for 9932. The code list options that do not depend on VAT are international schemes:
- **0088** GS1 GLN (13 digits, check-digit validated)
- **0060** D-U-N-S number
- **0199** Legal Entity Identifier (LEI)
There is no Peppol scheme for Isle of Man Companies Registry numbers. Whether non-VAT-registered businesses need to e-invoice at all under the UK mandate is a separate question. See [E-invoicing for non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
## What is not settled
**Confirmed:** the UK has announced Peppol as the core interoperability network for UK e-invoicing, with a mandate for B2B and B2G VAT invoices from April 2029. The Isle of Man is treated as part of the UK for VAT.
**Not yet confirmed (as of 20 October 2026):**
- whether, and how, the mandate will apply on the Island. Manx VAT is charged under Manx law, and we found no Isle of Man government announcement on e-invoicing
- whether Manx businesses will be expected to use 9932, and with or without the `GB` prefix
- whether UK buyers will be able to treat invoices from Manx suppliers in the same way as UK ones
For the wider picture, see [E-invoicing in the Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
## What to do now
1. If you already send invoices over Peppol, ask your provider for your registered ID, character for character.
2. If not, note your VAT number in the `9932:gb00...` form and check that your software can store a scheme code.
3. Ask your largest UK customers how they would like to receive your e-invoices.
4. Watch for the UK roadmap at Budget 2026 (28 October) and for any statement from the Isle of Man Treasury's Customs and Excise Division.
## Frequently asked questions
### What is the Peppol ID for an Isle of Man business?
There is no Isle of Man-specific scheme on the Peppol code list. A VAT-registered Manx business would normally use scheme 9932 (United Kingdom VAT number) with its VAT number, giving an ID such as 9932:gb001234567.
### What is the primary party ID for the Isle of Man?
If your software asks for a primary party ID or Peppol ID, it usually means the scheme code plus identifier. For a VAT-registered Isle of Man business that is typically scheme 9932 with your VAT number, or 0088 if you have a GS1 GLN. There is no 'IM' scheme.
### How do I recognise an Isle of Man VAT number?
HMRC's VAT registration manual says Isle of Man numbers are in the same nine-digit series as UK numbers but are identified by the first two digits being 00.
### Does the UK e-invoicing mandate apply in the Isle of Man?
Not confirmed. The Isle of Man is treated as part of the UK for VAT, but VAT there is charged under Manx law. As of 20 October 2026 we found no Isle of Man government announcement on e-invoicing.
### Should I use country code IM on my Peppol invoice?
Use IM as the postal address country if that is where you are; it is a valid ISO 3166 code. Your VAT identifier and 9932-based Peppol ID are usually written with the GB prefix, because Manx VAT numbers are issued in the UK nine-digit series. Check how your number appears on your HMRC or Isle of Man Customs and Excise records.
---
How to cite: "Peppol ID Isle of Man: which identifier to use", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-id-isle-of-man
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol ID Northern Ireland: GB or XI VAT number?
> There is no XI scheme in Peppol. Northern Ireland businesses normally register a 9932 ID using their GB VAT number; XI is for EU goods trade documentation.
- Canonical URL: https://einvoices.uk/news/peppol-id-northern-ireland-xi
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Northern Ireland, Peppol, VAT, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [VATNIEU2100 - The Single Market concept: background - HMRC internal manual - GOV.UK](https://www.gov.uk/hmrc-internal-manuals/vat-northern-ireland-and-the-eu/vatnieu2100)
- [Register for VAT: Selling or moving goods between Northern Ireland and the EU - GOV.UK](https://www.gov.uk/register-for-vat/selling-or-moving-goods-between-northern-ireland-and-the-eu)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [Peppol BIS Billing](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Peppol BIS Billing 3.0 - ISO 3166-1 Alpha2 country codes](https://docs.peppol.eu/poacc/billing/3.0/codelist/ISO3166/)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
There is **no XI scheme** in Peppol. A VAT-registered Northern Ireland business would normally register a Peppol ID under scheme **9932 (United Kingdom VAT number)**, the same as a business in Great Britain, for example `9932:gb123456789` (a made-up number). The XI prefix is a separate VAT matter. It affects what you print as your VAT number on certain invoices, not your Peppol address.
## Two different things: your address and your VAT number
On a Peppol invoice, your identity appears in two separate places:
| Element | Business term | Purpose | NI example |
|---|---|---|---|
| `cbc:EndpointID` | BT-34 Seller electronic address | Routing: where the invoice is delivered over Peppol | `schemeID="9932"` `GB123456789` |
| `cac:PartyTaxScheme/cbc:CompanyID` | BT-31 Seller VAT identifier | Tax data shown on the invoice | `GB123456789` or `XI123456789` |
The **electronic address** must match a Peppol ID registered in an SMP. Otherwise nobody can deliver to it. The **VAT identifier** is invoice content, and it follows VAT rules.
So an NI business can keep a single Peppol ID and still show an XI VAT number on the invoices that need one.
## When the XI prefix applies
HMRC's manual on Northern Ireland and the EU says businesses trading goods between Northern Ireland and the EU need, "where appropriate", to add "the 'XI' prefix before their normal 9-digit UK VAT number" when communicating with EU suppliers or customers.
The same page says the XI prefix is **not** required:
- for services between Northern Ireland and the EU
- within the internal UK market
- for goods or services between the UK and the rest of the world
GOV.UK's registration guidance adds: "You must use your XI VAT registration number on all documentation when communicating with EU customers or suppliers", including invoices. You start using it once HMRC confirms you are eligible.
In practice, then:
| Invoice | VAT identifier (BT-31) | Peppol ID (EndpointID) |
|---|---|---|
| NI supplier to GB customer (goods or services) | GB123456789 | 9932:gb123456789 |
| NI supplier to NI customer | GB123456789 | 9932:gb123456789 |
| NI supplier of goods to an EU customer | XI123456789 | 9932:gb123456789 |
| NI supplier of services to an EU customer | GB123456789 | 9932:gb123456789 |
This table reflects HMRC's general XI guidance. It is not tax advice, so check HMRC's guidance for your own transactions.
## Can you register `9932:xi123456789`?
Technically, the Peppol identifier policy allows any value made of letters, digits and a few symbols, and the 9932 entry has no validation rule. So nothing in the Peppol rules stops a provider registering `9932:xi123456789`. But:
- 9932 is defined as "United Kingdom VAT number", and its listed country is GB.
- Your customers' systems will most likely look you up under the GB form.
- When we searched the Peppol Directory on 20 October 2026, Northern Ireland registrations we found used the `9932:gb...` form.
Registering an XI-based Peppol ID as well as, or instead of, the GB one is likely to cause missed lookups. Unless a buyer specifically asks for it, the GB form is the safer choice.
## Does the validation accept XI?
Yes. EN 16931 rule **BR-CO-09** requires the seller and buyer VAT identifiers to start with an ISO 3166-1 alpha-2 country prefix ("Nevertheless, Greece may use the prefix 'EL'"). The EN 16931 UBL validation artefacts used by Peppol BIS Billing 3.0 include `XI` in their list of accepted prefixes. So `XI123456789` in BT-31 will pass that rule.
The postal address country is a separate question. `GB` is the official ISO 3166-1 code for the whole United Kingdom, including Northern Ireland. But the country code list published with Peppol BIS Billing 3.0 also contains `XI`, "United Kingdom (Northern Ireland)", so an address with country `XI` will also validate. No UK rule yet says which one NI businesses should use, so ask your provider what it does.
## Worked example
Lough Components Ltd (fictional) in Belfast has UK VAT number 123 4567 89 and has been confirmed to use XI for EU goods trade.
- **Peppol ID:** `9932:gb123456789`, registered once by its provider.
- **Invoice to a customer in Manchester:** BT-31 `GB123456789`. Buyer's EndpointID is the customer's Peppol ID.
- **Invoice for goods to a customer in Dublin:** BT-31 `XI123456789`. Same seller EndpointID. Buyer's EndpointID is the Irish customer's Peppol ID, which may use an Irish scheme.
## What is not settled for the UK mandate
**Confirmed:** Peppol will be the core interoperability network for UK e-invoicing, with mandatory e-invoicing for B2B and B2G VAT invoices from April 2029.
**Not yet confirmed (as of 20 October 2026):**
- whether UK rules will say which scheme and value format NI businesses must register under
- whether any UK-specific validation will check that BT-31 uses GB or XI correctly for the type of supply
- whether NI postal addresses should use country code GB or XI
- how the mandate will interact with EU e-invoicing rules for NI goods trade with EU member states
See [E-invoicing in Northern Ireland and XI VAT numbers](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat) for the wider picture.
## What to do now
1. Keep one Peppol ID based on your GB VAT number unless a customer asks otherwise.
2. Make sure your invoicing software can switch BT-31 between GB and XI by type of supply, not by customer alone.
3. Ask your provider how it validates VAT prefixes.
4. Related reading: [Peppol participant IDs in the UK](https://einvoices.uk/news/peppol-participant-id-uk) and [EAS codes 9932 and 0088](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
## Frequently asked questions
### Is there an XI Peppol scheme for Northern Ireland?
No. The Peppol participant identifier code list (v9.7) has no XI or Northern Ireland entry. The UK VAT scheme is 9932 (GB:VAT).
### What Peppol ID should a Northern Ireland business use?
Usually the same as any UK VAT-registered business: scheme 9932 with your VAT number, for example 9932:gb123456789. The XI number has the same nine digits, but it is a VAT prefix for EU goods trade, not a Peppol scheme.
### Should I put my XI number on a Peppol invoice?
Only where HMRC says the XI prefix applies, mainly invoices for goods traded between Northern Ireland and the EU. Then the seller VAT identifier (BT-31) would be XI123456789. For UK internal trade and services, use your GB number.
### Does Peppol accept XI as a VAT prefix?
EN 16931 rule BR-CO-09 requires a country prefix on VAT identifiers, and the EN 16931 validation artefacts include XI among the accepted prefixes, so an XI VAT identifier passes that check.
---
How to cite: "Peppol ID Northern Ireland: GB or XI VAT number?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-id-northern-ireland-xi
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol Invoice Response vs MLR and MLS explained
> MLR and its successor MLS tell the sender's provider if an invoice was delivered or rejected; Invoice Response tells the supplier what the buyer did with it.
- Canonical URL: https://einvoices.uk/news/peppol-invoice-response-message-level-response
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, Technical, Validation, Accountants
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [BIS Invoice Response 3.2](https://docs.peppol.eu/poacc/upgrade-3/profiles/63-invoiceresponse/)
- [Peppol BIS Message Level Response 3.0](https://docs.peppol.eu/poacc/upgrade-3/profiles/36-mlr/)
- [Peppol Message Level Status | Peppol MLS Specification](https://docs.peppol.eu/edelivery/specs/mls/v1.1.0/mls/spec/)
- [Peppol Network Policy v1.0.0](https://docs.peppol.eu/edelivery/policies/Peppol%20Network%20Policy%201.0.0%202026-07-02.pdf)
- [Service Provider Operational Guideline on MLS v1.0.0](https://docs.peppol.eu/edelivery/guidelines/mls/SPOG%20on%20MLS%201.0.0%202026-07-02.pdf)
- [Release notes for Peppol BIS Billing v3](https://docs.peppol.eu/poacc/billing/3.0/release-notes/)
---
Peppol has two kinds of "reply" to an invoice, and they answer different questions. A **Message Level Response (MLR)**, or its successor **Message Level Status (MLS)**, is a technical message between service providers: *was the invoice valid and delivered?* An **Invoice Response** is a business message from buyer to supplier: *what is happening with this invoice: queried, rejected, approved, paid?* Both use the same codes, AB, AP and RE, but with different meanings, which causes a lot of confusion.
## The three layers of response
The MLS specification describes three groups of status messages:
| Layer | Example | Peppol message |
|---|---|---|
| Transport | "Your Access Point received the bytes" | AS4 receipt (automatic) |
| Message | "The invoice failed validation" or "it was delivered to the buyer" | MLR (old) / MLS (new) |
| Business | "We dispute line 3" or "Approved for payment" | Invoice Response |
## MLR: Message Level Response
**Peppol BIS Message Level Response 3.0** lets the receiver of a document tell the sender whether it passed validation.
- Codes: **AP** (accepted, no fatal errors), **AB** (acknowledged, not validated), **RE** (rejected, with a description of the errors)
- Identifiers: CustomizationID `urn:fdc:peppol.eu:poacc:trns:mlr:3`, ProfileID `urn:fdc:peppol.eu:poacc:bis:mlr:3`
- An MLR is sent only if the sender asked for one, or if fatal errors were found.
## MLS: Message Level Status (the replacement)
**Peppol Message Level Status v1.1.0** (2 July 2026) is "an evolution based on Message Level Response (MLR)". It is sent by the buyer's provider (C3) to the supplier's provider (C2). It reports on validation and also on whether the invoice was passed on to the buyer (C4).
| MLS code | Meaning | Status reason codes |
|---|---|---|
| **RE** | Rejected or not delivered. "The responsibility of the message is transferred back to C1/C2." | SV schema error; BV business rule or other violation (including file size, malware, MIME mismatch); BW warnings (reported only alongside fatal errors); FD delivery to C4 failed |
| **AP** | Delivered towards C4 *with* confirmation, for example by API with an acceptance acknowledgement | optional |
| **AB** | Delivered towards C4 *without* confirmation, for example by email or postal service | optional |
**What is mandatory for providers** (Peppol Network Policy v1.0.0, 2 July 2026):
- **MLS-1:** every service provider "MUST support sending and receiving MLS messages".
- **MLS-2:** providers must register to receive MLS under their OpenPeppol Service Provider ID, scheme **0242** (for example `0242:987654`).
- **MLS-3:** negative MLS is always sent. Positive MLS is sent only if the sending provider opts in. The default is `FAILURE_ONLY`, and `ALWAYS_SEND` is the alternative.
- **MLS-4:** no artificial delays. Service levels require 99.5% of MLS messages (for documents under 10 MB) to be sent within 20 minutes of the original transmission, measured monthly.
During the transition, providers may run MLR and MLS in parallel. Each document gets only one or the other, and MLS takes priority where both are supported. OpenPeppol says MLR "is being phased out".
The MLS document type ID is:
```
urn:oasis:names:specification:ubl:schema:xsd:ApplicationResponse-2::ApplicationResponse##urn:peppol:edec:mls:1.0::2.1
```
**What it means for you:** if your invoice is rejected by the buyer's provider, your provider should learn about it within minutes, with a reason code. Ask how that reaches you (see [How to choose a Peppol Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point)).
## Invoice Response: the business conversation
**BIS Invoice Response 3.2** lets the buyer report the status of an invoice to the seller. The BIS states that responses "have no legal effect". They do not change the invoice or anyone's commercial obligations.
| Code | Name | Meaning | Final? |
|---|---|---|---|
| AB | Message acknowledged | Buyer has a readable invoice it can process | No |
| IP | In process | Processing has started | No |
| UQ | Under query | Processing halted until the seller answers a query | No |
| CA | Conditionally accepted | Accepted on stated conditions | No |
| RE | Rejected | Buyer will not process it further | **Yes** |
| AP | Accepted | Final approval; payment is the next step | No |
| PD | Paid | Payment initiated for the full amount | **Yes** |
Statuses follow that order, though not every step has to be sent. A buyer supporting the BIS must at least handle **AB, RE and AP**. UQ and RE require a clarification, using reason and action code lists (`OPStatusReason`, `OPStatusAction`).
Identifiers: CustomizationID `urn:fdc:peppol.eu:poacc:trns:invoice_response:3`, ProfileID `urn:fdc:peppol.eu:poacc:bis:invoice_response:3`.
### New in 2026: "billing with response"
The May 2026 release of Peppol BIS Billing 3.0 (3.0.21, mandatory from 17 August 2026) added an optional profile, `urn:peppol:bis:billing_with_response`, "for a process where an invoice response is required step in the collaboration". It needs a separate SMP registration, and the same profile ID was added to the Invoice Response BIS. A buyer that registers for it is signalling that it will always reply.
## Worked example
A supplier in Leeds sends an invoice to a buyer in Bristol (both fictional):
1. **09:00** The supplier's provider validates and sends the invoice.
2. **09:04** The buyer's provider finds a fatal business-rule error and sends **MLS RE**, reason **BV**. The invoice never reaches the buyer, and the supplier must fix it and resend.
3. **10:15** The corrected invoice is sent. Since the supplier's provider asked for `ALWAYS_SEND`, an **MLS AP** follows: delivered into the buyer's ERP with confirmation.
4. **Next day** The buyer sends **Invoice Response UQ**: "PO number missing".
5. The supplier answers outside Peppol, or issues a credit note and a new invoice.
6. **Week 3** The buyer sends **Invoice Response AP**, then **PD** when payment is initiated.
## What is not settled for the UK
**Confirmed:** Peppol will be the core network for UK e-invoicing from April 2029. MLS is now a Peppol-wide requirement for service providers.
**Not yet confirmed (as of 20 October 2026):** whether UK rules will require buyers to send Invoice Responses (for example to support late-payment policy), whether rejection has any VAT consequence, and what happens to an invoice that is technically rejected near a VAT period end. Watch the roadmap at Budget 2026.
## What to do now
1. Ask your provider whether it supports MLS today and how rejections are shown to you.
2. If you are a buyer, consider sending at least AB, RE and AP. It saves suppliers chasing you.
3. If you are a supplier, check whether your software can receive Invoice Responses and show them against each invoice.
4. Related: [Common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors) and [Credit notes in Peppol](https://einvoices.uk/news/credit-notes-peppol-uk).
## Frequently asked questions
### What is a Peppol Message Level Response (MLR)?
An MLR is a technical reply, using codes AP, AB or RE, saying whether a received document passed validation. It is being replaced by Message Level Status (MLS), which also reports whether the document was delivered on to the buyer.
### What is a Peppol Invoice Response?
It is a business-level message from the buyer to the seller giving the status of an invoice, such as acknowledged (AB), in process (IP), under query (UQ), conditionally accepted (CA), rejected (RE), accepted (AP) or paid (PD).
### Is Invoice Response mandatory?
Not under Peppol generally. The BIS says the seller is not obliged to support it and the buyer is not obliged to send it. A buyer that does support it must at least be able to send AB, RE and AP. The UK has not said whether it will require invoice responses.
### Is MLS mandatory?
For Peppol service providers, yes. The Peppol Network Policy (2 July 2026) says every service provider must support sending and receiving MLS messages. By default, only negative (RE) statuses are sent.
### Does an MLS with code AP mean the buyer has approved my invoice?
No. MLS AP means the buyer's provider delivered the invoice and got a confirmation from the buyer's system. Approval for payment is shown by an Invoice Response with status AP.
---
How to cite: "Peppol Invoice Response vs MLR and MLS explained", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-invoice-response-message-level-response
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol ID UK: how participant identifiers work
> A UK Peppol ID is a scheme code plus a value, such as 9932:gb123456789 for a VAT number. Here is the exact format, the case rules and which ID to use.
- Canonical URL: https://einvoices.uk/news/peppol-participant-id-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Technical, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [Peppol BIS Billing](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Peppol Service Metadata Publishing (SMP) v1.4.0](https://docs.peppol.eu/edelivery/smp/Peppol-EDN-Service-Metadata-Publishing-1.4.0-2025-02-06.pdf)
- [Peppol Directory - Search](https://directory.peppol.eu/public)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
## Key points
- A Peppol ID (participant identifier) is a four-digit scheme code and a value written as scheme:value, for example 9932:gb123456789 for a UK VAT number.
- Identifier values are treated case insensitive and may not contain spaces; the meta scheme iso6523-actorid-upis is always written in lower case.
- Most VAT-registered UK businesses on Peppol use scheme 9932 (UK VAT number); NHS trusts and many NHS suppliers use 0088 (GLN).
- The code list does not say whether 9932 values include the GB prefix, and 9932:gb123456789 and 9932:123456789 are different identifiers, so check how each customer is registered.
- The government has not yet said which identifier scheme UK businesses should use for the 2029 mandate.
---
A Peppol ID, properly called a **participant identifier**, is your address on the Peppol network. It always has two parts, a four-digit scheme code and the identifier value, written as `scheme:value`. A UK business using its VAT number would typically look like `9932:gb123456789` (all numbers in this article are made up).
## The anatomy of a Peppol ID
The rules are set by OpenPeppol's **Policy for use of Identifiers** (version 4.4.0, valid from 1 November 2025). Take this illustrative ID:
```
iso6523-actorid-upis::9932:gb123456789
```
| Part | Example | Meaning |
|---|---|---|
| Meta scheme | `iso6523-actorid-upis` | Peppol's fixed "Participant Identifier Meta Scheme" (POLICY 5). Always the same. |
| Separator | `::` | Joins the meta scheme to the identifier in SMP URLs and many tools |
| Scheme code | `9932` | Which register the number comes from. 9932 is "United Kingdom VAT number" |
| Separator | `:` | Joins the scheme code to the value |
| Value | `gb123456789` | The identifier itself |
Most of the time you will only see the short form, `9932:gb123456789`. The policy notes that the meta scheme "may be omitted in documents because it is currently constant". The long form with `::` is the format the SMP specification uses in lookup URLs, for example `https://smp.example.org/iso6523-actorid-upis::9932:gb123456789`.
## Where the ID appears
The same identifier turns up in several places, written slightly differently in each:
- **On the invoice (UBL):** in the seller's and buyer's `EndpointID`, with the scheme code as an attribute:
`GB123456789`
- **In the SMP:** `9932:gb123456789`
- **In the message envelope (SBDH):** `9932:gb123456789`
- **In the Peppol Directory:** shown as `9932:gb123456789`
Peppol BIS Billing 3.0 makes the electronic address mandatory for both sides. Rule PEPPOL-EN16931-R020 says "Seller electronic address MUST be provided" and PEPPOL-EN16931-R010 says the same for the buyer. If your customer's ID is missing from your customer record, the invoice will not validate.
## Case, characters and length
From the policy:
- **Case:** "All Participant Identifier values have to be treated case insensitive even if the underlying scheme requires a case sensitive value." So `9932:GB123456789` equals `9932:gb123456789`. The policy's own example: "0088:abc is equal to 0088:ABc", but "0088:abc is NOT equal to 0010:abc".
- **Meta scheme case:** `iso6523-actorid-upis` "is always case sensitive". Write it in lower case.
- **Characters:** values may use only letters, digits, `-`, `.`, `_` and `~`. **No spaces.** Write `gb123456789`, never `GB 123 4567 89`.
- **Length:** from 1 to 130 characters, not counting the scheme code.
For lookups, the policy requires the identifier to be lower-cased before it is hashed. That is why directories and lookup tools often show IDs in lower case.
## Which scheme should a UK business use?
The scheme code must come from the official Peppol participant identifier scheme code list (version 9.7, July 2026). The codes most relevant to UK businesses are:
| Code | Scheme | Typical UK use |
|---|---|---|
| 9932 | United Kingdom VAT number (GB:VAT) | Most VAT-registered UK businesses |
| 0088 | Global Location Number (GS1 GLN) | NHS trusts and many NHS suppliers |
| 0060 | D-U-N-S Number | Some large companies |
| 0199 | Legal Entity Identifier (LEI) | Financial and larger groups |
There is no code for Companies House numbers on the list, and no separate code for Northern Ireland or the Isle of Man. For more detail, see [Peppol EAS codes for the UK: 9932 and 0088](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088).
## GB prefix or no prefix?
The code list entry for 9932 gives no structure, example or validation rule. So it does not say whether the value should include the `GB` prefix. We searched the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk) on 20 October 2026. Most UK registrations under 9932 included it (`9932:gb` followed by nine digits), but a minority used nine digits on their own.
Those are two different identifiers. A sender looking up `9932:gb123456789` will not find a business registered as `9932:123456789`. Until the UK publishes rules, check how each customer is actually registered rather than assuming.
## Worked example
Acme Widgets Ltd (fictional) is VAT-registered as GB 123 4567 89 and connects through a certified provider.
1. Its provider registers the participant `iso6523-actorid-upis::9932:gb123456789` in its SMP and, usually, publishes a business card to the Peppol Directory.
2. Acme gives customers its Peppol ID: `9932:gb123456789`.
3. A customer's system puts `GB123456789` in the buyer party of any invoice sent to Acme.
4. The customer's provider looks up that ID, finds Acme's provider and delivers the invoice.
## What is not settled for the UK mandate
As of 20 October 2026, the government has confirmed Peppol as the core network. It has **not** published:
- which identifier scheme(s) UK businesses must or should register under
- whether 9932 values should include the `GB` prefix
- how VAT groups, divisions and branches should be identified
- whether the UK will request a new scheme code (for example for Companies House numbers)
The implementation roadmap is due at Budget 2026 on 28 October. We will update this guide when it is published.
## What to do now
1. Ask your provider which Peppol ID(s) it has registered for you, character for character.
2. Collect your customers' Peppol IDs and store the scheme code and value in separate fields.
3. Strip spaces from VAT-based IDs, and be consistent about the `GB` prefix.
4. If you supply the NHS, check whether you also need a GLN-based (0088) ID.
## Frequently asked questions
### What is a Peppol ID?
A Peppol ID (participant identifier) is the address other businesses use to send you documents over Peppol. It is a four-digit scheme code followed by a colon and the identifier itself, for example 9932:gb123456789.
### What is the Peppol ID for a UK company?
There is no single official UK format yet. In practice most UK VAT-registered businesses on Peppol use scheme 9932 (United Kingdom VAT number); NHS suppliers often use 0088 (GLN). The government has not yet said which scheme the 2029 mandate will expect.
### Is a Peppol ID case sensitive?
No. Peppol's Policy for use of Identifiers says participant identifier values must be treated case insensitive, so 9932:GB123456789 and 9932:gb123456789 are the same participant. The scheme part iso6523-actorid-upis is case sensitive.
### What does iso6523-actorid-upis mean?
It is the fixed name of Peppol's participant identifier meta scheme. It appears in SMP records, URLs and the message envelope, but you do not normally type it on an invoice.
### Can a business have more than one Peppol ID?
Yes. A business can be registered under several identifiers, for example a VAT-based ID and a GLN. Each ID is registered with exactly one SMP.
---
How to cite: "Peppol ID UK: how participant identifiers work", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-participant-id-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Peppol SMP and SML explained: how invoices find the buyer
> The SML is Peppol's DNS-based locator and the SMP is the registry of what each participant can receive. How a lookup works, step by step, with a UK example.
- Canonical URL: https://einvoices.uk/news/peppol-smp-sml-explained
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, Technical, Four-corner model
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol Service Metadata Locator (SML) v1.3.0](https://docs.peppol.eu/edelivery/sml/Peppol-EDN-Service-Metadata-Locator-1.3.0-2025-02-06.pdf)
- [Peppol Service Metadata Publishing (SMP) v1.4.0](https://docs.peppol.eu/edelivery/smp/Peppol-EDN-Service-Metadata-Publishing-1.4.0-2025-02-06.pdf)
- [Peppol Policy for use of Identifiers v4.4.0](https://docs.peppol.eu/edelivery/policies/Peppol-EDN-Policy-for-use-of-identifiers-4.4.0-2025-02-06.pdf)
- [OpenPeppol eDEC Specifications](https://docs.peppol.eu/edelivery/)
- [Peppol Directory v1.1.1](https://docs.peppol.eu/edelivery/directory/PEPPOL-EDN-Directory-1.1.1-2020-10-15.pdf)
---
The **SML** (Service Metadata Locator) and **SMP** (Service Metadata Publisher) are Peppol's address book. The SML is a single, DNS-based locator that answers "which SMP knows about this participant?" The SMP, run by service providers, answers "can this participant receive this type of document, and at which Access Point?" Together they let any provider deliver to any other without a central hub carrying the invoices.
## Why Peppol needs them
In the [four-corner model](https://einvoices.uk/news/four-corner-model-explained), the supplier's Access Point (C2) knows only the buyer's Peppol ID, for example `9932:gb123456789` (made up). It does not know who the buyer's provider is. Before every send, C2 performs **dynamic discovery**: it uses the SML to find the buyer's SMP, then the SMP to find the buyer's Access Point and certificate.
The SML specification explains why DNS is used: it "does not need a single central server to run the Discovery interface, with its associated single point of failure". The SML's job is to control who can create and update entries in DNS.
## Step by step
The SML specification (v1.3.0, valid from 1 November 2025) sets out the discovery flow.
**1. Build the DNS name.** The format is:
```
..
```
The Identifier Policy (POLICY 7) defines the hash. Lower-case the participant ID (scheme code and value) using en_US rules. Take the SHA-256 hash of its UTF-8 bytes. Then Base32-encode the result and drop the trailing `=` padding.
**2. Query DNS for a U-NAPTR record** at that name, with service name `Meta:SMP`. The record returns the SMP's base URL, which must use `https`.
**3. Ask the SMP.** The sender calls:
```
//services/
```
The SMP returns signed metadata. This includes the Access Point's endpoint URL, the transport profile (AS4) and the Access Point's certificate.
**4. Send.** C2 sends the invoice over AS4 to C3.
## Worked UK example
Take the fictional participant `9932:GB123456789`.
| Step | Value |
|---|---|
| Lower-cased ID | `9932:gb123456789` |
| SHA-256, Base32, no padding | `O4DBUQH7GHS5WZIDLSGRUGMYODY4GDQYQHNMVLOTRIMEZ6X26LEA` |
| Scheme | `iso6523-actorid-upis` |
| DNS name (using the zone in the policy's examples) | `O4DBUQH7GHS5WZIDLSGRUGMYODY4GDQYQHNMVLOTRIMEZ6X26LEA.iso6523-actorid-upis.edelivery.tech.ec.europa.eu.` |
| SMP request | `https://smp.example.org/iso6523-actorid-upis::9932:gb123456789/services/busdox-docid-qns::urn:oasis:names:specification:ubl:schema:xsd:Invoice-2::Invoice##urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0::2.1` |
In a real request, the parts after the SMP's base URL are percent-encoded (`::` becomes `%3A%3A`, `#` becomes `%23`). We calculated the hash ourselves and checked our method against the worked example in the Identifier Policy (`0088:123abc`).
Because the ID is lower-cased before hashing, `9932:GB123456789` and `9932:gb123456789` produce the same DNS name. This is how the policy's rule that participant IDs are case insensitive works in practice. But `9932:123456789`, without the GB prefix, produces a **different** hash, so it is a different participant.
## What lives in an SMP
For each participant (a "service group"), the SMP holds:
- the participant identifier, with scheme `iso6523-actorid-upis`
- a list of **document types** the participant can receive (for example the BIS Billing 3.0 invoice and credit note)
- for each document type, the **process** (for example `urn:fdc:peppol.eu:2017:poacc:billing:01:1.0`), the **endpoint URL** and the **certificate** of the receiving Access Point
- optionally, a business card that can be published to the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk)
The SMP signs its responses, so a sender can check that the metadata is genuine. Each participant ID can be registered with **one and only one SMP**.
## Registration and migration
SMPs do not write to DNS directly. Through the SML's management interface, the SMP asks the SML to create, update or delete the DNS record for a participant.
Changing provider uses the same interface. The current SMP calls **PrepareToMigrate**, which sets a migration code. The participant gives that code to the new SMP, which calls **Migrate** to take over. After that, lookups point to the new provider and the Peppol ID itself does not change. This is why "can I get a migration code?" is a fair question when [choosing an Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
## What changed in November 2025
Two specifications published on 6 February 2025 became valid on 1 November 2025:
- **SML 1.3.0:** "Switching from CNAME to U-NAPTR DNS records", and the CNAME wildcard option was removed.
- **Identifier Policy 4.4.0:** "Changing POLICY 7 to use a different DNS zone name algorithm" (the SHA-256 and Base32 hash above), and longer maximum identifier lengths.
The older scheme produced DNS names starting with `B-`, which you may still see in older documentation and tools. If you maintain your own Peppol integration, make sure your lookup code uses the current method.
## Is there anything UK-specific?
No. The SML and SMP are the same for every country on Peppol. What the UK has not yet settled (as of 20 October 2026) is which **identifier schemes** UK participants should register under, and whether participants must publish Directory business cards. See [Peppol ID UK](https://einvoices.uk/news/peppol-participant-id-uk) and [Who is the UK Peppol Authority?](https://einvoices.uk/news/peppol-authority-uk)
## What to do now
1. Ask your provider which IDs and document types it has registered for you in its SMP.
2. Make sure both invoice and credit note are listed, and Invoice Response if you plan to use it.
3. Check your contract lets you get a migration code if you leave.
4. Developers: implement lookups to SML 1.3.0 and SMP 1.4.0, and test with case variations of IDs.
See also the glossary entry for [Service Metadata Publisher](https://einvoices.uk/news/peppol-smp-sml-explained).
## Frequently asked questions
### What is the difference between SMP and SML in Peppol?
The SML (Service Metadata Locator) is a single DNS-based service that tells a sender which SMP holds a participant's details. The SMP (Service Metadata Publisher) is run by service providers and says which documents that participant can receive and at which Access Point.
### Who runs the Peppol SMP?
SMPs are run by certified Peppol service providers, usually the same provider that runs your Access Point. Each participant identifier is registered with one and only one SMP.
### What changed in the SML in 2025?
SML specification 1.3.0 and Identifier Policy 4.4.0, valid from 1 November 2025, moved lookups from DNS CNAME records to U-NAPTR records and changed how the DNS name is built, using a Base32-encoded SHA-256 hash of the lower-cased participant ID.
### Do I need to know about the SMP as a business?
Only a little. Your provider registers you in its SMP. What matters to you is that your Peppol ID is registered correctly, for the right document types, and that you can migrate it if you change provider.
---
How to cite: "Peppol SMP and SML explained: how invoices find the buyer", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-smp-sml-explained
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# BR-CO-15 error: Invoice total amount with VAT explained and fixed
> BR-CO-15 fires when BT-112 does not equal BT-109 plus BT-110, or the UBL has more than one VAT total in the invoice currency. Causes, tests and fixes with UBL.
- Canonical URL: https://einvoices.uk/news/peppol-validation-error-br-co-15
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Validation, Technical, Peppol, VAT
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [BR-CO-15 – EN16931 model bound to UBL, Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-CO-15/)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [VAT guide (VAT Notice 700), 17.5 Calculation of VAT on invoices – rounding of amounts – GOV.UK](https://www.gov.uk/guidance/vat-guide-notice-700)
---
**BR-CO-15** means the VAT-inclusive total on your invoice does not equal the net total plus the VAT total. The rule text is: "Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110)." In UBL, it can also fire when the arithmetic is right but the invoice has more than one VAT total in the invoice currency, or the VAT total carries the wrong `currencyID`.
It is a fatal EN 16931 rule, so a Peppol Access Point will reject the invoice. Here is exactly what it checks and how to fix each cause.
## What the rule actually tests
In UBL the three amounts live here:
| Business term | UBL element |
|---|---|
| BT-109 Invoice total amount without VAT | `cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount` |
| BT-110 Invoice total VAT amount | `cac:TaxTotal/cbc:TaxAmount` |
| BT-112 Invoice total amount with VAT | `cac:LegalMonetaryTotal/cbc:TaxInclusiveAmount` |
The published Peppol test for BR-CO-15 (context: the Invoice or CreditNote root) is:
```text
every $Currency in cbc:DocumentCurrencyCode satisfies
(count(cac:TaxTotal/xs:decimal(cbc:TaxAmount[@currencyID=$Currency])) eq 1)
and (cac:LegalMonetaryTotal/xs:decimal(cbc:TaxInclusiveAmount) =
round((cac:LegalMonetaryTotal/xs:decimal(cbc:TaxExclusiveAmount)
+ cac:TaxTotal/xs:decimal(cbc:TaxAmount[@currencyID=$Currency])) * 10 * 10) div 100)
```
That gives two conditions, and both must pass:
1. **Exactly one** `cac:TaxTotal/cbc:TaxAmount` whose `currencyID` equals `cbc:DocumentCurrencyCode`.
2. `TaxInclusiveAmount` equals `TaxExclusiveAmount + TaxAmount`, rounded to 2 decimals. There is **no tolerance**.
We reproduced each cause below by changing one thing in an otherwise valid UK invoice and running the EN 16931 and Peppol validation artefacts.
## Cause 1: the sum is out by a penny
The most common case. Our test invoice had TaxExclusiveAmount 925.00 and VAT 173.00. Changing TaxInclusiveAmount to 1098.01 produced:
```text
[BR-CO-15]-Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110).
[BR-CO-16]-Amount due for payment (BT-115) = Invoice total amount with VAT (BT-112) -Paid amount (BT-113) +Rounding amount (BT-114).
```
BR-CO-16 usually comes along, because PayableAmount was derived from the wrong total.
**Typical root causes:**
- **Gross prices.** The system stores VAT-inclusive prices and backs out net and VAT per line, then rounds each part separately.
- **Line-level VAT.** The system computes VAT per line, rounds each line and sums them, while also calculating the gross total some other way. HMRC allows line-level rounding (VAT Notice 700, paragraph 17.5.1), but in the e-invoice the totals must still add up.
- **Three or more decimals** in an intermediate total that gets rounded differently in two places.
**Fix:** build the totals in one direction only, from the lines up:
```text
BT-106 LineExtensionAmount = sum of line net amounts (BT-131)
BT-109 TaxExclusiveAmount = BT-106 - AllowanceTotalAmount + ChargeTotalAmount
BT-110 TaxTotal/TaxAmount = sum of TaxSubtotal/TaxAmount
BT-112 TaxInclusiveAmount = BT-109 + BT-110
BT-115 PayableAmount = BT-112 - PrepaidAmount + PayableRoundingAmount
```
Never compute BT-112 from gross line prices. Always add BT-109 and BT-110 after both are rounded to 2 decimals:
```xml
173.00
910.00
925.00
1098.00
15.00
1098.00
```
If you want the customer to pay a rounded figure, use `cbc:PayableRoundingAmount` (BT-114). Do not adjust TaxInclusiveAmount.
## Cause 2: two VAT totals in the invoice currency
Adding a second `cac:TaxTotal` with a `TaxAmount` in GBP, as some systems do to "repeat" VAT, triggered BR-CO-15 even though every amount was correct:
```text
[BR-CO-15]-Invoice total amount with VAT (BT-112) = ...
PEPPOL-EN16931-R054 Only one tax total without tax subtotals MUST be provided when tax currency code is provided.
```
**Fix:** one `cac:TaxTotal` with the `cac:TaxSubtotal` breakdowns. Peppol rule **PEPPOL-EN16931-R053** says "Only one tax total with tax subtotals MUST be provided." A second `cac:TaxTotal` (amount only, no subtotals) is allowed only when you invoice in a foreign currency and set `cbc:TaxCurrencyCode`, and it must then be in that tax currency, such as GBP on a EUR invoice.
## Cause 3: wrong currencyID on the VAT total
On a EUR invoice with GBP as the VAT accounting currency, putting `currencyID="GBP"` on the main `TaxTotal/TaxAmount` instead of EUR produced BR-CO-15, plus **PEPPOL-EN16931-R051** ("All currencyID attributes must have the same value as the invoice currency code (BT-5), except for the invoice total VAT amount in accounting currency (BT-111).") and R055.
**Fix:** the main VAT total, with subtotals, is in the invoice currency. The sterling figure goes in a separate `TaxTotal` with no subtotals:
```xml
EUR
GBP
173.00
149.65
```
More in [multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
## Cause 4: header VAT does not match the breakdown
If `TaxTotal/TaxAmount` is not the sum of the `TaxSubtotal` amounts, you get **BR-CO-14** ("Invoice total VAT amount (BT-110) = Σ VAT category tax amount (BT-117).") and often BR-CO-15 too. In our test, changing only the header VAT to 173.01 fired both. Fix BR-CO-14 first. BR-CO-15 often clears with it.
## Why the VAT breakdown passes but BR-CO-15 fails
The VAT breakdown rules have a tolerance. The UBL tests for **BR-S-09** and **BR-CO-17** accept a breakdown tax amount within 1 (one currency unit) of taxable amount × rate. So line-level VAT rounding that differs by a few pence from breakdown-level calculation passes those rules. In our tests, a breakdown of £173.01 on £865.00 at 20% passed, and £174.50 failed. BR-CO-14 and BR-CO-15 have no such tolerance: the header totals must agree with each other to the penny.
So the safe pattern for UK systems that calculate VAT per line is:
1. Sum the line VAT per category and rate into each `TaxSubtotal/TaxAmount` (small differences from rate × base are tolerated).
2. Set `TaxTotal/TaxAmount` to the exact sum of the subtotals.
3. Set `TaxInclusiveAmount` to `TaxExclusiveAmount + TaxTotal/TaxAmount`.
## Checklist
- [ ] One `cac:TaxTotal` with subtotals, in the invoice currency
- [ ] A second `cac:TaxTotal` only if `cbc:TaxCurrencyCode` is set, with no subtotals, in that currency
- [ ] `TaxTotal/TaxAmount` = sum of `TaxSubtotal/TaxAmount`
- [ ] `TaxInclusiveAmount` = `TaxExclusiveAmount` + `TaxTotal/TaxAmount`, to the penny
- [ ] All amounts have at most 2 decimals
- [ ] `PayableAmount` derived from `TaxInclusiveAmount`, with `PayableRoundingAmount` for any rounding
## Related errors
- [Common Peppol validation errors explained](https://einvoices.uk/news/common-peppol-validation-errors)
- [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol)
- [A complete UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk)
These rules come from Peppol BIS Billing 3.0 as published in May 2026. The UK's own e-invoice specification has not been published. It could add rules, but BR-CO-15 is a core EN 16931 rule, and any EN 16931-based UK standard would be expected to keep it. That is our expectation, **not a confirmed UK rule**.
## Frequently asked questions
### What does BR-CO-15 mean?
"Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110)." In UBL: TaxInclusiveAmount must equal TaxExclusiveAmount plus TaxTotal/TaxAmount.
### My totals add up but I still get BR-CO-15. Why?
In UBL the rule also needs exactly one cac:TaxTotal/cbc:TaxAmount with a currencyID equal to the invoice currency. A second TaxTotal in the same currency, or a wrong currencyID, triggers BR-CO-15 even when the arithmetic is right.
### Is there a rounding tolerance for BR-CO-15?
No. The sum is rounded to two decimals and must match exactly. Unlike the VAT breakdown rules BR-S-09 and BR-CO-17, there is no tolerance.
### Is BR-CO-15 a Peppol rule or an EN 16931 rule?
It is an EN 16931 rule, applied in Peppol BIS Billing 3.0 through the UBL binding. It is fatal, so the invoice is rejected.
---
How to cite: "BR-CO-15 error: Invoice total amount with VAT explained and fixed", einvoices.uk, 20 October 2026, https://einvoices.uk/news/peppol-validation-error-br-co-15
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Public Procurement (Electronic Invoices etc.) Regulations 2019
> The 2019 regulations made UK public bodies accept EN 16931 e-invoices. What they required, how Scotland differs, what replaced them, and what 2029 adds.
- Canonical URL: https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Public sector, Compliance, 2029 mandate, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [The Public Procurement (Electronic Invoices etc.) Regulations 2019](https://www.legislation.gov.uk/uksi/2019/624/made)
- [The Electronic Invoicing (Public Contracts etc.) Amendment (Scotland) Regulations 2019](https://www.legislation.gov.uk/ssi/2019/7/made)
- [The Public Contracts (Scotland) Regulations 2015, regulation 70A](https://www.legislation.gov.uk/ssi/2015/446/regulation/70A)
- [Procurement Act 2023, section 67: Electronic invoicing: implied term](https://www.legislation.gov.uk/ukpga/2023/54/section/67)
- [Procurement Act 2023, section 2: Contracting authorities](https://www.legislation.gov.uk/ukpga/2023/54/section/2)
- [Guidance: Electronic Invoicing and Payment (HTML)](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html)
---
The **Public Procurement (Electronic Invoices etc.) Regulations 2019** (SI 2019/624) required UK public bodies to **accept and process** e-invoices that meet the European e-invoicing standard, EN 16931. They gave suppliers a right to e-invoice, but did not oblige suppliers to do so. The 2029 mandate reverses that: the supplier will have to send.
This explainer covers what the regulations did, how Scotland differs, what replaced them under the Procurement Act 2023, and where the 2029 mandate fits in.
## What the 2019 regulations did
The instrument was made on 20 March 2019 by the Minister for the Cabinet Office. It implemented the EU directive on e-invoicing in public procurement (Directive 2014/55/EU). It inserted a new e-invoicing rule into four sets of procurement regulations:
| Regulations amended | New provision | In force |
|---|---|---|
| Public Contracts Regulations 2015 | Regs 113A and 113B | 18 April 2019 (sub-central authorities: 18 April 2020) |
| Utilities Contracts Regulations 2016 | Reg A120 | 18 April 2020 |
| Concession Contracts Regulations 2016 | Regs 64A and 64B | 18 April 2019 (utilities and sub-central: 18 April 2020) |
| Defence and Security Public Contracts Regulations 2011 | Regs A66 and B66 | 18 April 2019 (utilities and sub-central: 18 April 2020) |
The core rule, in regulation 113A of the Public Contracts Regulations 2015, worked like this:
- Every public contract awarded under Part 2 had to include a provision requiring the authority to **accept and process an e-invoice** submitted by or for the contractor.
- The conditions were that the invoice is **undisputed** and **complies with the standard on electronic invoicing**: the European standard plus one of the syntaxes listed in Commission Implementing Decision (EU) 2017/1870. In practice those syntaxes are UBL and UN/CEFACT CII. See [UBL vs CII](https://einvoices.uk/news/ubl-vs-cii-uk).
- If a contract left the term out, it was **implied** anyway.
- An "electronic invoice" meant one "issued, transmitted and received in a structured electronic format which allows for its automatic and electronic processing". A PDF does not meet that test. See [does a PDF count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice)
### Exceptions and phasing
- **Sub-central authorities** (local authorities and similar bodies) got an extra year, to 18 April 2020, unless they were acting as a central purchasing body.
- **Defence and security contracts** were exempt if the contract was classified secret or needed special security measures, and the UK's essential security interests could not be protected if e-invoices had to be accepted.
### Wales and Northern Ireland
The 2019 instrument amended regulation 1 of the Public Contracts Regulations 2015 so that regulations 113A, 113B and 114 apply to contracting authorities with wholly or mainly Welsh or Northern Ireland devolved functions. Welsh and Northern Ireland public bodies were therefore covered by the same rule.
## Scotland had its own regulations
Scotland transposed the directive separately. The **Electronic Invoicing (Public Contracts etc.) Amendment (Scotland) Regulations 2019** (SSI 2019/7) inserted:
- regulation **70A** into the Public Contracts (Scotland) Regulations 2015
- regulation **44A** into the Concession Contracts (Scotland) Regulations 2016
- regulation **84A** into the Utilities Contracts (Scotland) Regulations 2016
These came into force on **18 April 2019** for central government authorities and **all NHS Scotland bodies**, and on **18 April 2020** for everyone else. The Scottish version goes further than the UK text: it lists the "information components" a compliant e-invoice must contain. These include process and invoice identifiers, seller, buyer and payee details, contract reference, delivery details, payment instructions, line items, totals and VAT breakdown. That list mirrors the core of EN 16931.
Regulation 70A **remains in force**. The Procurement Act 2023 excludes "devolved Scottish authorities" (section 2(5)), so Scottish public bodies still work under the Scottish regulations.
## What replaced the 2019 regulations
legislation.gov.uk now lists SI 2019/624 as revoked. For England, Wales and Northern Ireland, the rule now sits in **section 67 of the Procurement Act 2023**, in force from **24 February 2025**:
- Every public contract carries an implied term that the authority must **accept and process for payment** any e-invoice that is in the "required electronic form" and not disputed.
- The "required electronic form" is defined by reference to **BS EN 16931-1:2017** and the syntax list in **PD CEN/TS 16931-2:2017**. Those are the British Standards Institution editions of the same European documents.
- Any term trying to restrict or override this is of no effect.
- The authority **may require a particular system** for e-invoices. Only **defence authorities** may require a system that charges suppliers fees.
- Ministers can change the meaning of "required electronic form" by regulations (s.67(7)), after consultation.
Cabinet Office guidance on [e-invoicing and payment](https://www.gov.uk/government/publications/procurement-act-2023-guidance-documents-manage-phase/guidance-electronic-invoicing-and-payment-html) describes this as carrying forward the effect of the 2019 amendments. It also notes that suppliers "will always have the right to submit an electronic invoice". Contracts procured under the old regulations generally keep the old rules for their lifetime.
The Act also implies **30-day payment terms** (section 68). An invoice counts as valid for those terms if it is a compliant e-invoice, or if it carries the minimum information and meets the contract's requirements. The e-invoicing term in section 67 applies to "public contracts", meaning those procured under the Act. **Regulated below-threshold contracts** get the 30-day payment term (section 88), but there is no equivalent e-invoicing term.
## How this fits with the 2029 mandate
| | 2019 regulations / Procurement Act s.67 | 2029 mandate |
|---|---|---|
| Obligation falls on | The public buyer, to accept | The supplier, to issue VAT invoices as e-invoices |
| Scope | Public contracts under the procurement rules | VAT invoices, B2B and B2G |
| Standard | EN 16931 + listed syntax | Peppol confirmed as network; detailed data standard not yet published |
| Network | Not specified | Peppol |
| Source of rule | Procurement law | VAT and e-invoicing law (still to be made) |
**Confirmed:** from April 2029, VAT invoices to public-sector bodies must be e-invoices; the government has [announced](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary) that Peppol will be the core interoperability network; there will be no real-time reporting at launch.
**Not yet confirmed:**
- Whether section 67's "required electronic form" will be amended to match the national standard, for example a UK Peppol specification
- How public bodies' current portals, which section 67 allows, will sit alongside a Peppol-based mandate
- Whether Scotland will amend regulation 70A to match, since procurement is devolved but VAT is not
- How invoices that are not VAT invoices will be treated, such as those from suppliers who are not VAT-registered
These are among the questions we expect the Budget 2026 roadmap to start answering on 28 October 2026.
For how section 67 of the Procurement Act 2023 works from the supplier's side, and why it obliges public buyers to accept e-invoices rather than obliging suppliers to send them, see Procurement Act 2023 and e-invoicing: section 67 explained.
## What to do now
- **Suppliers:** you already have a legal right to send compliant e-invoices to public buyers. Using it now, ideally over Peppol, is good practice for 2029. Start with the guides for [councils](https://einvoices.uk/news/local-council-e-invoicing-suppliers), [central government](https://einvoices.uk/news/central-government-e-invoicing-suppliers) and the [NHS](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers).
- **Public bodies:** check that your accounts payable system can receive and process EN 16931 invoices, not just PDFs, and that your contracts don't purport to restrict the implied term.
See also the [mandate guide](https://einvoices.uk/mandate) and [EN 16931 explained](https://einvoices.uk/news/en-16931-explained).
## Frequently asked questions
### What do the Public Procurement (Electronic Invoices etc.) Regulations 2019 require?
They required public contracting authorities and utilities to accept and process undisputed e-invoices that comply with the European standard EN 16931 and an approved syntax. A term to that effect was implied into their contracts. They did not require suppliers to send e-invoices.
### When did the e-invoicing regulations come into force?
On 18 April 2019 for central government authorities, and 18 April 2020 for sub-central authorities such as councils, and for utilities. Scotland's separate regulations used the same two dates, with NHS Scotland bodies in the first wave.
### Are the 2019 regulations still in force?
legislation.gov.uk now lists the 2019 instrument as revoked. For procurements under the Procurement Act 2023, from 24 February 2025, section 67 of the Act carries the same rule forward. Scotland's regulation 70A remains in force.
### Do suppliers to the public sector have to e-invoice now?
Not by law, although a contract can require it. That changes from April 2029, when VAT invoices to public bodies must be issued as e-invoices.
---
How to cite: "Public Procurement (Electronic Invoices etc.) Regulations 2019", einvoices.uk, 20 October 2026, https://einvoices.uk/news/public-sector-e-invoicing-regulations-2019
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Buyer reference (BT-10) and PO number in Peppol invoices
> Peppol invoices need a buyer reference (BT-10) or a PO reference (BT-13) or rule PEPPOL-EN16931-R003 rejects them. What each is for and how to fill it.
- Canonical URL: https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, Validation, Technical, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21), 11.3 References](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [PEPPOL-EN16931-R003 – Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/PEPPOL-EN16931-R003/)
- [UBL Invoice syntax – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/tree/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
A Peppol invoice must carry either a **buyer reference** (BT-10, `cbc:BuyerReference`) or a **purchase order reference** (BT-13, `cac:OrderReference/cbc:ID`). If it has neither, rule **PEPPOL-EN16931-R003** rejects it: "A buyer reference or purchase order reference MUST be provided." Which one you use, and what goes in it, decides whether the invoice gets matched and paid or sits in a queue on the buyer's side.
## The rule
The published Peppol test for R003 is short:
```text
cbc:BuyerReference or cac:OrderReference/cbc:ID
```
It applies to both invoices and credit notes and is fatal. One of the two elements must exist with a value. Note that an empty element does not get you round it. `` breaks **PEPPOL-EN16931-R008** ("Document MUST not contain empty elements.") instead.
## Buyer reference vs purchase order reference
| | Buyer reference (BT-10) | Purchase order reference (BT-13) |
|---|---|---|
| UBL | `cbc:BuyerReference` | `cac:OrderReference/cbc:ID` |
| Who issues it | The buyer | The buyer, on its purchase order |
| Typical content | Cost centre, department, requisitioner, "Your ref" | The PO number |
| Used for | Routing the invoice internally | Matching to the order (2- or 3-way match) |
Peppol's guidance on BT-10: "The buyer reference, known as Your ref, is conditional. An invoice shall have either the buyer reference or the order reference." It describes the element as "used for the reference of who ordered the products/services. Example being the name of the person ordering, employee number or a code identifying this person or department/group", and notes it "is often used for internal routing at recipient".
On the purchase order: "The purchase order is conditional. If order reference exist, use that, else use Buyer reference." And: "This unique purchase order number should be supplied as the order reference on the invoice."
## Correct UBL
Both together, which is the best option when you have both:
```xml
GBP
FIN-OPS-77
2026-09-01
2026-09-30
PO-48213
```
Order matters in UBL. `cbc:BuyerReference` sits after `cbc:DocumentCurrencyCode` (and `cbc:AccountingCost`, if used), and `cac:OrderReference` comes after `cac:InvoicePeriod` but before the billing and document references. Put them in the wrong place and you get a schema error, not R003.
To reference individual PO lines, add `cac:OrderLineReference` to each invoice line:
```xml
1
10
850.00
1
```
We validated invoices with both references, with only the buyer reference, and with only the PO reference against the EN 16931 and Peppol BIS Billing 3.0 rules. All three passed. Removing both triggered R003.
## Sales order numbers
Your own sales order number is BT-14, `cac:OrderReference/cbc:SalesOrderID`. UBL needs `cac:OrderReference/cbc:ID` whenever `cac:OrderReference` is present. The Peppol syntax guide says: "In cases where sales order reference is provided, but there's no purchase order reference, then set cac:OrderReference/cbc:ID to value 'NA' as this element is mandatory in UBL."
Be aware that `NA` also satisfies R003, because the rule only checks that `cac:OrderReference/cbc:ID` exists. It passes validation, but it gives the buyer nothing to match against. If the customer gave you a reference, use it.
## Other reference fields people confuse
| Field | UBL | Use |
|---|---|---|
| BT-11 Project reference | `cac:ProjectReference/cbc:ID` | Buyer's project code |
| BT-12 Contract reference | `cac:ContractDocumentReference/cbc:ID` | Framework or contract number |
| BT-15 / BT-16 Receiving / despatch advice | `cac:ReceiptDocumentReference`, `cac:DespatchDocumentReference` | Goods received or delivery note numbers |
| BT-17 Tender or lot reference | `cac:OriginatorDocumentReference/cbc:ID` | Procurement procedure ID |
| BT-19 Buyer accounting reference | `cbc:AccountingCost` | Where the buyer books the cost (for example a GL code) |
None of these satisfies R003 on its own. A contract number in BT-12 still needs BT-10 or BT-13 alongside it.
## When the customer gave you nothing
Peppol's guidance: "If neither buyer reference nor a reference to an order is supplied by the customer, the name of the person ordering or appointed for the customer can be supplied in buyer reference if known by the supplier." And when the customer did provide a reference, "the correct element shall contain the provided reference".
In practice, for UK suppliers:
- **Ask at onboarding.** Make "PO number or buyer reference" a required field when you set up a new customer or take an order. See [supplier onboarding](https://einvoices.uk/news/supplier-onboarding-e-invoicing).
- **Store it on the customer or order record**, not in a free-text note, so your software can map it to BT-10 or BT-13 automatically.
- **Don't invent placeholders.** A reference like "N/A" or "TBC" in BT-10 passes validation but tends to fail the buyer's matching and get the invoice queried.
## Public sector buyers
Public sector buyers in the UK already receive Peppol invoices. NHS Supply Chain requires its suppliers to e-invoice through Peppol, according to the government's consultation response. Public bodies often have their own rules on PO numbers and buyer references. Check each customer's supplier guidance rather than assuming. See [NHS Peppol invoicing](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers) and [invoicing central government](https://einvoices.uk/news/central-government-e-invoicing-suppliers).
## What may change for the UK mandate
R003 is a Peppol rule in Peppol BIS Billing 3.0. Peppol is confirmed as the UK's network, but the UK data standard is not yet published. A UK specification could keep R003 as it is, make the PO reference mandatory for some flows, or add new reference fields. **None of this is confirmed.** Check the [timeline](https://einvoices.uk/timeline) after the roadmap at Budget 2026.
## What to do now
- **Suppliers:** check that your invoice template maps the customer's reference to BT-10 and their PO to BT-13, and that the fields can't be sent empty.
- **Buyers and AP teams:** decide what you want in BT-10 (cost centre? requester?) and tell your suppliers. It is the cheapest routing win in e-invoicing. See [accounts payable and e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk).
- Read [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors).
## Frequently asked questions
### What is BT-10 in Peppol?
BT-10 is the Buyer reference (cbc:BuyerReference in UBL). The buyer assigns it, usually for internal routing, such as a cost centre, department code or the name of the person who ordered.
### Is the buyer reference mandatory in Peppol?
Not on its own. Peppol requires either a buyer reference (BT-10) or a purchase order reference (BT-13). Without one of them, rule PEPPOL-EN16931-R003 rejects the invoice.
### What do I put in the buyer reference if the customer did not give me one?
Peppol's guidance says that if the customer gave neither a buyer reference nor an order number, you can put the name of the person who ordered, if you know it. Better still, ask the customer what reference they want.
### Will UK buyers be able to require a PO number on e-invoices?
Buyers can already require one commercially. Whether the UK mandate's standard makes any reference field mandatory beyond today's Peppol rule is not yet confirmed.
---
How to cite: "Buyer reference (BT-10) and PO number in Peppol invoices", einvoices.uk, 20 October 2026, https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Will HMRC require real-time reporting of invoices?
> Not in 2029. The government says real-time reporting won't come with the e-invoicing mandate but may be considered once e-invoicing is well established.
- Canonical URL: https://einvoices.uk/news/real-time-reporting-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: HMRC, 2029 mandate, VAT, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Electronic invoicing: promoting e-invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/electronic-invoicing-promoting-e-invoicing-across-uk-businesses-and-the-public-sector)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
- [Peppol Continuous Transaction Controls Reference Document](https://peppol.org/wp-content/uploads/2023/02/Peppol-CTC-Reference-Document-v1.0.pdf)
---
No, not when the mandate starts. The government has said in terms that it "will not introduce it [real-time reporting] alongside the e-invoicing mandate in 2029." From April 2029 your VAT invoices must be e-invoices, but HMRC will not receive copies of them as they are issued. You will keep reporting VAT through your VAT return.
That is not the end of the story, though. The government has left the door open for later.
## What exactly has been said
The official position comes from the consultation response published on 26 November 2025. These points are **confirmed**:
- "The government will continue to explore the potential benefits of RTR but will not introduce it alongside the e-invoicing mandate in 2029."
- RTR "would be implemented once e-invoicing use was well established."
- "If RTR requirements are introduced at a later date they will build on e-invoicing infrastructure with the objective of making this reporting as seamless as possible for businesses."
- HMRC "will also examine how it could utilise, protect and store such data in a safe, proportionate manner".
The government also accepted a key practical point from respondents: "e-invoicing data alone would not be sufficient to provide a pre-populated VAT return", because VAT invoices are not issued for most consumer sales.
## What "real-time reporting" means
Real-time reporting (RTR) means sending transaction data to the tax authority as, or shortly after, invoices are issued. It is one form of [continuous transaction controls](https://einvoices.uk/glossary#continuous-transaction-controls) (CTC). The UK consultation cited Hungary and South Korea as countries using it.
There are two main designs:
- **Centralised / clearance.** Invoices go through a government platform first. See [Clearance vs decentralised](https://einvoices.uk/news/decentralised-vs-clearance-model).
- **Decentralised data share.** Invoices travel between providers, and the providers also send data to the tax authority. On Peppol this is usually called the [five-corner model](https://einvoices.uk/news/five-corner-model-uk).
The consultation noted that a data feed "can also be implemented later following the creation of a decentralised system without data sharing." That is the path the UK appears to be on: build the network first, decide on reporting later.
## What respondents told the government
Views were mixed. Supporters called RTR "a logical and overdue step", citing better VAT compliance, less fraud and simpler returns. A smaller group worried about complexity, cost for SMEs, data privacy under GDPR and "excessive oversight". Many asked for a gap between the e-invoicing rollout and any RTR requirement, which is what the government decided.
## Things that are not real-time reporting
You may hear about other HMRC changes and confuse them with RTR:
| Change | What it is | Status |
|---|---|---|
| Digital prompts in VAT software | Real-time prompts in filing software to help avoid errors, from April 2027 (Budget 2025) | Announced |
| Third-party data | HMRC acquiring card sales and interest data more often, from April 2028 (Budget 2025) | Announced |
| MTD for VAT | Digital records and VAT returns via software | In force since 2019/2022 |
| E-invoicing mandate | VAT invoices exchanged as structured data | From April 2029 |
| Real-time invoice reporting | Invoice data sent to HMRC as invoices are issued | **Not planned for 2029**; may be considered later |
## When might it come?
**Not known.** No date, consultation or design has been published. The government's own words, "once e-invoicing use was well established", suggest it would not be soon after April 2029. Anyone quoting a year is speculating.
Watch for:
- The e-invoicing roadmap at Budget 2026 (28 October 2026), which may say whether RTR is in scope for later phases.
- Any HMRC consultation on VAT return reform or pre-population.
- Developments in the EU, where the ViDA package introduces digital reporting for intra-EU business trade from 1 July 2030. That applies to EU member states, not to the UK.
## Should you design for it anyway?
A sensible, low-cost approach is to choose software and processes that would cope if reporting arrives:
- Make sure your invoice data is accurate at source, because any future reporting would draw on it.
- Prefer providers that already operate in countries with reporting regimes. Peppol's own CTC work shows how a reporting "fifth corner" can be added with "limited changes" from a taxpayer's point of view, according to OpenPeppol's reference document.
- Keep invoices and VAT records reconciled, so a mismatch between invoices and returns would not surprise you.
## What to do now
You do not need to prepare for real-time reporting today. Prepare for e-invoicing, keep your data clean, and read [What the 2025 consultation response said](https://einvoices.uk/news/uk-e-invoicing-consultation-2025-summary). We will update this page and the [timeline](https://einvoices.uk/timeline) if the roadmap says anything new.
## Frequently asked questions
### Will HMRC require real-time invoice reporting from 2029?
No. The government has said it will not introduce real-time reporting alongside the e-invoicing mandate in 2029.
### Could real-time reporting come later?
Possibly. The government said it will continue to explore the benefits, and that any future requirements would build on the e-invoicing infrastructure once e-invoicing use is well established. No date or design has been announced.
### Are the VAT 'digital prompts' from April 2027 the same as real-time reporting?
No. Budget 2025 announced real-time digital prompts in VAT filing software from April 2027 to help businesses avoid errors in returns. That is not a requirement to report invoices to HMRC.
---
How to cite: "Will HMRC require real-time reporting of invoices?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/real-time-reporting-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Self-billing and e-invoicing: what HMRC rules mean for 2029
> Self-billing will survive e-invoicing: Peppol has a self-billing standard and HMRC's Notice 700/62 still applies. Here's what is confirmed and what is open.
- Canonical URL: https://einvoices.uk/news/self-billing-e-invoicing-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Peppol, Technical, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Self-billing (VAT Notice 700/62)](https://www.gov.uk/guidance/self-billing-notice-70062)
- [Electronic invoicing (VAT Notice 700/63)](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Peppol BIS Self-Billing 3.0](https://docs.peppol.eu/poacc/self-billing/3.0/bis-sb/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
---
**Self-billing is expected to continue under UK e-invoicing, but the UK-specific rules are not yet published.** HMRC's self-billing rules in [VAT Notice 700/62](https://www.gov.uk/guidance/self-billing-notice-70062) still apply. The UK has chosen Peppol, which already has a dedicated self-billing standard. And the government's consultation response says HMRC has confirmed that concerns "including self-billing and the VAT reverse charge" have been addressed in other jurisdictions' mandates.
What is not confirmed is exactly how a self-billed e-invoice will be specified and validated in the UK from April 2029.
## A quick recap of self-billing
Self-billing is "a commercial arrangement between a supplier and a customer in which the customer prepares the supplier's invoice and forwards a copy to the supplier with the payment." It is common where the customer decides the value, such as:
- agricultural produce and livestock
- scrap metal and recycling
- royalties and commissions
- haulage and courier sub-contracting
- construction sub-contracting
You do not need HMRC's permission to self-bill. You do need to follow the rules.
## The HMRC rules that still apply
Under Notice 700/62 (law: VAT Act 1994 section 29 and VAT Regulations 1995 regulation 13(3) to 13(3F)):
- **A written agreement must be in place before self-billing starts.** It must include the supplier's agreement to accept self-billed invoices, a promise not to issue its own VAT invoices for the same supplies, a start and expiry date, and a commitment to tell you about VAT registration changes. It must also say if a third party will issue the self-bills.
- **Each self-billed invoice must be marked "SELF-BILLING".** This sentence in the notice has the force of law. HMRC also advises adding: "The VAT shown is your output tax due to HMRC".
- **The invoice must contain all the normal VAT invoice details.**
- **You must not self-bill unregistered suppliers**, or a supplier whose VAT number has changed until a new agreement is in place.
- **Corrections** use a debit note rather than reducing a later invoice.
- **Breaking the rules** means the documents are not proper VAT invoices, so they cannot support your input tax claim.
HMRC suggests reviewing agreements every 12 months. Notice 700/63 adds that any electronic self-billing system must recognise self-billed invoices so that input and output tax are accounted for correctly.
## How self-billing works in Peppol
The UK will use [Peppol](https://einvoices.uk/news/what-is-peppol). Peppol publishes a separate specification, **Peppol BIS Self-Billing 3.0**, alongside the standard billing specification. Its key features:
| Element | Self-billing value |
|---|---|
| Specification identifier (CustomizationID) | `urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:selfbilling:3.0` |
| Business process (ProfileID) | `urn:fdc:peppol.eu:2017:poacc:selfbilling:01:1.0` |
| Self-billed invoice type code | 389 ("an invoice the invoicee is producing instead of the seller") |
| Self-billed credit note type code | 261 |
| Who sends | The buyer, to the seller |
The direction of travel is reversed. In normal Peppol billing, the supplier sends an invoice to the buyer. In self-billing, the **buyer** sends the self-billed invoice to the **seller's** Peppol ID. So:
- the **supplier** must be registered on Peppol to *receive* self-billing documents, which is a separate document type from ordinary invoices
- the **customer** must be able to *send* them
- both sides' software must treat the VAT on the document correctly: output tax for the supplier, input tax for the customer
These identifiers come from the current Peppol specification (May 2026 release). Whether the UK will adopt Peppol BIS Self-Billing as-is, or with UK-specific rules, is **not confirmed**.
## Questions the roadmap needs to answer
- Will self-billed invoices be in scope from April 2029 on the same date as other VAT invoices?
- Will the "SELF-BILLING" marking be satisfied by the document type code, or must it appear as text?
- What happens if the supplier is not on Peppol? Under the current rules, the supplier would have to issue its own invoices. That would undo the arrangement.
- How will the 14-day tax point rule and notional tax point apply to e-invoices?
- How will third-party bureaux that issue self-bills be treated?
## Tax points still matter
Issuing a self-billed invoice does not normally create a tax point. The exception is when you issue it within 14 days of the basic tax point. The self-biller can use a notional tax point of the day after issue when it pays with the self-bill. Nothing announced changes those rules. Make sure your e-invoicing system records the correct tax point date on each document.
## What to do now
1. **List every self-billing arrangement**, with the supplier's VAT number and agreement expiry date.
2. **Check agreements are current and in writing.** Agreements have expiry dates and can lapse unnoticed.
3. **Ask your ERP or AP provider** whether it supports Peppol BIS Self-Billing, both sending and receiving.
4. **Contact your self-billed suppliers** early. They will need to be reachable on Peppol for self-billing documents.
5. **Keep reconciliations tight.** Duplicate invoices, one self-billed and one from the supplier, are a common error that HMRC specifically warns about.
See our glossary entry on [self-billing](https://einvoices.uk/news/self-billing-e-invoicing-uk), and check [who is in scope](https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate) for the wider picture.
## Frequently asked questions
### Is self-billing allowed under UK e-invoicing?
Nothing announced removes it. Self-billing is still governed by VAT Notice 700/62, and HMRC noted in the consultation response that other countries' mandates have addressed self-billing. The UK-specific rules have not yet been published.
### Who sends the e-invoice in a self-billing arrangement?
The customer (self-biller) creates the invoice on the supplier's behalf. In Peppol this uses a dedicated self-billing specification, with invoice type code 389.
### Do I still need a self-billing agreement?
Yes. HMRC's rules require a written agreement in place before self-billing starts, with a start and expiry date. E-invoicing does not change that.
### Does a self-billed e-invoice still need to say 'SELF-BILLING'?
Under current rules each self-billed invoice must be marked 'SELF-BILLING', and that requirement has the force of law. How the UK e-invoice specification will carry that marking has not been confirmed.
---
How to cite: "Self-billing and e-invoicing: what HMRC rules mean for 2029", einvoices.uk, 20 October 2026, https://einvoices.uk/news/self-billing-e-invoicing-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# How to onboard suppliers to e-invoicing in the UK
> A step-by-step plan for onboarding UK suppliers to Peppol e-invoicing before April 2029: segmentation, communications, data collection, testing and follow-up.
- Canonical URL: https://einvoices.uk/news/supplier-onboarding-e-invoicing
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Finance teams, Peppol, 2029 mandate, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [OpenPeppol eDEC Code Lists](https://docs.peppol.eu/edelivery/codelists/)
- [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number)
---
To onboard suppliers to e-invoicing, **segment them by volume, publish your Peppol ID and invoicing rules, test with the biggest suppliers first and then move the rest in waves**. Most suppliers will not need a separate system: they will send through their own accounting software and Access Point, using the Peppol network confirmed for the UK mandate starting **April 2029**.
Start now. The earlier suppliers send e-invoices, the sooner your accounts payable team stops keying bills.
## What is confirmed
- E-invoicing is mandatory for VAT invoices from April 2029 (government consultation response).
- Peppol is the network: the GOV.UK Tax update 2026 summary says "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
- A decentralised model with no government portal.
**Not yet confirmed:** exemptions or phasing for small suppliers, and the treatment of non-VAT-registered suppliers' invoices beyond the general position that non-registered businesses will not have to adopt e-invoicing. Expect more in the Budget 2026 roadmap on 28 October 2026.
## Step 1: get your own house in order
Before you contact suppliers:
- [ ] Register each buying entity on Peppol and confirm your [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk). The Peppol code list includes scheme 9932 for UK VAT numbers.
- [ ] Check you appear in the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk).
- [ ] Confirm your AP system can receive invoices **and** credit notes (see [accounts payable e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk)).
- [ ] Decide what suppliers must include: PO number, [buyer reference](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol), contact, attachments.
- [ ] Clean your supplier master data ([master data guide](https://einvoices.uk/news/master-data-cleanup-e-invoicing)).
## Step 2: segment your suppliers
| Segment | Typical profile | Approach |
|---|---|---|
| **Wave 1: high volume** | Top suppliers by invoice count | Personal contact, joint testing, early go-live |
| **Wave 2: medium** | Regular suppliers with modern software | Email campaign, self-service instructions |
| **Wave 3: long tail** | Occasional or small suppliers | Standard letter, FAQ, reminder before 2029 |
| **Out of scope or special** | Non-VAT-registered, overseas, self-billed | Keep a fallback channel; review case by case |
Segment by **invoice count**, not spend. Many small invoices create more AP work than a few large ones.
## Step 3: collect supplier data
Ask each supplier, ideally through an online form:
- legal name and UK VAT number (verify with HMRC's [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number));
- whether they are already on Peppol, and their Peppol ID;
- their accounting software, and whether it supports Peppol;
- an invoicing contact;
- their planned date to start sending.
Add Peppol ID fields to your new-supplier form so this becomes routine.
## Step 4: communicate clearly
A short, specific message works best. Include:
1. **Why:** the UK mandate for VAT invoices from April 2029, and the benefits for them (faster approval, delivery confirmation).
2. **What:** "Please send invoices and credit notes over Peppol to [Peppol ID]."
3. **Rules:** PO number required, one invoice per PO, legal entity name.
4. **When:** your target date for their segment.
5. **How:** "Most accounting software can do this. Ask your provider about Peppol." Link them to our [guide to checking Peppol support](https://einvoices.uk/news/check-accounting-software-peppol-support) and [small business guide](https://einvoices.uk/news/e-invoicing-small-business-guide).
6. **Help:** a named contact or mailbox.
Avoid telling suppliers which software or provider to use. On Peppol, any certified provider can reach you. That is the point of the [four-corner model](https://einvoices.uk/news/four-corner-model-explained).
## Step 5: test with wave 1
- [ ] Agree a test invoice and credit note with each supplier.
- [ ] Check data arrives correctly: VAT, totals, PO, attachments.
- [ ] Check matching and approval work end to end.
- [ ] If you use [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response), check the supplier receives them.
- [ ] Agree a switch-over date after which PDFs are no longer accepted from that supplier.
## Step 6: roll out in waves and track progress
Track each supplier's status:
| Status | Meaning |
|---|---|
| Not contacted | |
| Contacted | Message sent |
| Responded | Data collected |
| Testing | Test invoice sent |
| Live | Sending production e-invoices |
| Exception | Out of scope or special handling |
Report the percentage of invoice volume arriving via Peppol each month. That is the measure that matters.
## Step 7: make it stick
- Add an e-invoicing clause to new contracts and purchase order terms, reviewed by your legal team.
- Stop accepting PDFs from live suppliers, with a polite redirect.
- Re-contact silent suppliers before each wave closes.
## Common supplier objections
**"Our software doesn't do Peppol."** Ask them to check their provider's UK plans in writing. If there is no plan, they will need a solution by April 2029 for all their VAT-registered customers, not just you.
**"We use your portal already."** Explain that Peppol lets them connect once and reach every buyer on the network.
**"We are not VAT-registered."** They may be out of scope. Keep a fallback channel and note them as an exception.
**"We'll wait until 2029."** That is their right until the mandate starts. Explain the benefits of starting early and keep them in a later wave.
## Public-sector buyers are ahead
If you are a public-sector buyer, many suppliers may already be familiar with Peppol. NHS Supply Chain requires suppliers to issue e-invoices through Peppol, according to the government's consultation response. See our [NHS guide](https://einvoices.uk/news/nhs-peppol-e-invoicing-suppliers).
## What to do now
- [ ] Confirm your Peppol ID and directory entry.
- [ ] Rank suppliers by invoice count and pick wave 1.
- [ ] Draft the supplier message and data form.
- [ ] Add supplier onboarding to your [project plan](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams).
## Frequently asked questions
### How do I get my suppliers to send e-invoices?
Segment suppliers by volume, tell them your Peppol ID and invoicing requirements, give them a date to start, test with the largest first, and follow up with those not yet sending. Most suppliers will connect through their own accounting software.
### Can I force suppliers to use Peppol before 2029?
You can set it as a commercial requirement in contracts and purchase orders, as some public-sector buyers already do, but the legal mandate for VAT invoices does not start until April 2029.
### What if a small supplier cannot send e-invoices?
Find out why. Some will not be VAT-registered and may be out of scope. Others may just need to switch on a feature in their software. Keep a fallback channel for out-of-scope documents.
### Should suppliers use a buyer portal instead of Peppol?
Peppol is confirmed as the UK network, so a supplier connected once can reach every Peppol buyer. Asking suppliers to key invoices into separate portals is likely to be less attractive to them after 2029.
---
How to cite: "How to onboard suppliers to e-invoicing in the UK", einvoices.uk, 20 October 2026, https://einvoices.uk/news/supplier-onboarding-e-invoicing
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UBL vs CII: which e-invoice format should UK businesses use?
> UBL and CII are the two XML syntaxes for EN 16931 e-invoices. How they differ, which one Peppol requires, and what it means for UK businesses before 2029.
- Canonical URL: https://einvoices.uk/news/ubl-vs-cii-uk
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Technical, Peppol, Software, 2029 mandate
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Navigating the eInvoicing standard documentation – European Commission](https://ec.europa.eu/digital-building-blocks/sites/display/DIGITAL/Navigating%2Bthe%2BeInvoicing%2Bstandard%2Bdocumentation)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [Factur-X – FNFE-MPE](https://fnfe-mpe.org/factur-x/)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary – GOV.UK](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
UBL and CII are the two XML formats (syntaxes) that can carry an invoice built to the European standard EN 16931. For UK businesses the practical answer is **UBL**: Peppol, which the government has confirmed as the UK's e-invoicing network, uses UBL 2.1 as its mandatory format and treats CII as optional. The UK data standard for the 2029 mandate has not been published, so that is the best indication today, not a confirmed rule.
## Same data, two syntaxes
[EN 16931](https://einvoices.uk/news/en-16931-explained) splits an e-invoice into two layers:
1. **The semantic model** (EN 16931-1): the list of business terms an invoice can contain, such as BT-1 Invoice number and BT-110 Invoice total VAT amount.
2. **The syntax**: how those terms are written as a file.
The European Commission's guide lists the bindings. CEN/TS 16931-3-2 covers "ISO/IEC 19845 (UBL 2.1) invoice and credit note". CEN/TS 16931-3-3 covers "UN/CEFACT XML Industry Invoice D16B". The Commission says public bodies covered by Directive 2014/55/EU must be able to receive and process both.
So a UBL invoice and a CII invoice carrying the same data are equivalent at the semantic level. The European Commission's validation artefacts on GitHub ship separate rule sets for each, with the same business rule IDs, so BR-CO-15 means the same thing in both.
## How they differ in practice
| | UBL 2.1 | UN/CEFACT CII D16B |
|---|---|---|
| Maintained by | OASIS (also ISO/IEC 19845) | UN/CEFACT |
| Document types | Separate `Invoice` and `CreditNote` | One `CrossIndustryInvoice`; type code sets invoice or credit note |
| Root namespace | `urn:oasis:names:specification:ubl:schema:xsd:Invoice-2` | `urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100` |
| Structure | Fairly flat; parties and totals near the top | Nested in header blocks: agreement, delivery, settlement |
| Peppol BIS Billing 3.0 | Mandatory | Optional |
| Where you see it | The Peppol network, including invoices to the NHS | The XML inside Factur-X / ZUGFeRD hybrid PDFs |
The same invoice number looks like this in each.
UBL:
```xml
INV-2026-0142
2026-10-20
380
```
CII:
```xml
INV-2026-0142
380
20261020
```
These are fragments to show structure, not complete valid invoices. Note the date difference: UBL uses ISO dates (`2026-10-20`); CII uses a format code with `20261020`.
## What Peppol says about CII
Peppol BIS Billing 3.0 is specified in UBL. The schemas are "UBL Invoice 2.1" and "UBL CreditNote 2.1". Appendix B adds CII as an option:
> "This Peppol BIS supports the optional use of the UN/CEFACT XML Cross Industry Invoice, D16B (CII), meaning that receivers of invoices can register in the SMP to receive CII invoices alongside the mandatory UBL version."
Two consequences:
- **Every Peppol receiver must accept UBL.** If you send UBL, any Peppol participant can take it.
- **CII only works if the receiver has registered for it.** Sending CII to someone who has not is a delivery problem, not just a validation one.
Peppol also says a CII invoice must meet the same Peppol rules as a UBL one, with the same specification identifier.
## Where CII still matters for UK businesses
- **Factur-X and ZUGFeRD.** FNFE-MPE describes Factur-X as a Franco-German hybrid format: a PDF for people plus XML for machines. It says "Factur-X et ZUGFeRD sont identiques" ("Factur-X and ZUGFeRD are identical"). The XML is CII. UK businesses with French or German customers may already receive these.
- **ERP output.** Some ERP e-invoicing modules produce CII natively for EU countries. Converting to UBL is usually done by the Access Point or the software.
- **Archive and import.** If you receive both, your AP system needs to read both.
## What the UK has and has not decided
**Confirmed:** "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK" (GOV.UK, Tax update 2026, 23 June 2026). The mandate starts on April 2029.
**Not yet confirmed:** the UK data standard and syntax. In its consultation response, the government said it "will work closely with stakeholders to review the risks and benefits of adopting an existing standard or designing a UK-specific standard". Peppol's mandatory syntax is UBL, so UBL is the safe bet, but whether CII will be accepted for UK mandate purposes has not been announced. Expect more detail in the roadmap due at Budget 2026 on 28 October 2026.
## So which should you pick?
- **Most businesses:** you will not pick. Your software and [Access Point](https://einvoices.uk/glossary#access-point) handle it. Ask your provider whether they send and receive Peppol BIS Billing 3.0 UBL today.
- **Developers building an integration:** build UBL first. It is the one every Peppol receiver must accept, and the format we use in our [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
- **Businesses trading with France or Germany:** make sure you can also receive CII-based Factur-X / ZUGFeRD.
## What to do now
- Ask your software provider which syntaxes it can generate and receive.
- If you have in-house integrations, check that they map to EN 16931 business terms, not just one vendor's format. That makes switching syntax far easier.
- Read our [Peppol BIS Billing 3.0 UK guide](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) next.
## Frequently asked questions
### What is the difference between UBL and CII?
Both are XML syntaxes that can carry an EN 16931 invoice. UBL 2.1 is an OASIS standard (ISO/IEC 19845) with separate Invoice and CreditNote documents. CII is UN/CEFACT's Cross Industry Invoice (D16B), with one document type for both.
### Does Peppol use UBL or CII?
Peppol BIS Billing 3.0 is built on UBL 2.1. UBL support is mandatory. CII is optional: receivers can register to accept CII invoices alongside UBL.
### Which format will the UK mandate require?
Not confirmed. Peppol is confirmed as the UK's network, which points strongly to UBL. The UK data standard has not been published.
### Do I need to choose between UBL and CII myself?
Usually not. Your accounting software or Access Point generates the XML. You may need to know the format if you build integrations or receive invoices directly.
---
How to cite: "UBL vs CII: which e-invoice format should UK businesses use?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/ubl-vs-cii-uk
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Selling to EU customers: do UK businesses need e-invoices?
> Most EU e-invoicing mandates cover only locally established businesses, so UK suppliers are usually outside them. But EU customers may still ask for Peppol.
- Canonical URL: https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: Peppol, VAT, Northern Ireland, Compliance
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT in the Digital Age (ViDA)](https://taxation-customs.ec.europa.eu/taxation/vat/vat-digital-age-vida_en)
- [General questions on the B2B obligation (invoicing to companies)](https://einvoice.belgium.be/en/FAQ/general-questions-b2b)
- [Foire aux questions – Je découvre la facturation électronique](https://www.impots.gouv.fr/sites/default/files/media/1_metier/2_professionnel/EV/2_gestion/290_facturation_electronique/faq---fe_je-decouvre-la-facturation-electronique.pdf)
- [Fragen und Antworten zur Einführung der obligatorischen (verpflichtenden) E-Rechnung zum 1. Januar 2025](https://www.bundesfinanzministerium.de/Content/DE/FAQ/e-rechnung.html)
- [La fattura elettronica e i servizi gratuiti dell'Agenzia delle Entrate](https://www.agenziaentrate.gov.it/portale/documents/d/guest/la_fattura_elettronica)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
---
Usually not as a legal requirement. The EU mandates we checked, in **Belgium, France, Germany and Italy**, apply to businesses established in that country, so a UK supplier with no branch or fixed establishment there is generally outside them. In practice, though, EU customers who now receive everything else as e-invoices are increasingly likely to **ask** you for one, and Peppol makes that straightforward.
This guide is written for UK businesses. It is not legal advice on EU law. Check with the customer's tax authority or an adviser in that country before relying on it.
## Country by country
These are the positions stated by each country's own tax authority, checked on 20 October 2026.
| Country | Domestic B2B rule | Applies to a UK supplier with no local establishment? |
|---|---|---|
| **Belgium** | Structured e-invoices compulsory between Belgian VAT-registered businesses since 1 January 2026, sent "via a decentralised network called Peppol" | No. The official FAQ says VAT-registered persons "not established in Belgium without a permanent establishment" are "not subject to the obligation", adding that "the law is still being amended on this point." |
| **France** | Since 1 September 2026, all businesses must be able to receive e-invoices and large and mid-sized firms must issue them; small and micro businesses must issue from 1 September 2027 | No. E-invoicing applies only between taxable persons established in France. Your French customer may instead have to report data on dealings with foreign operators ("e-reporting"). |
| **Germany** | All domestic businesses must be able to receive e-invoices since 1 January 2025; issuing transition ends 31 December 2026, or 2027 for issuers with prior-year turnover up to €800,000 | The obligation applies to supplies between businesses established in Germany. |
| **Italy** | Domestic e-invoices through the central Sistema di Interscambio (SdI) since 1 January 2019 | The obligation covers only transactions between parties resident or established in Italy. |
**Important exception:** if your UK business has a branch, fixed establishment or permanent establishment in one of these countries, its local supplies may well be caught. Get local advice.
## France: the e-reporting angle
France's FAQ (version of 1 September 2026) is a helpful example of how this works. E-invoicing applies to transactions carried out between VAT-registered businesses established in France. When a French business sells to a customer established outside France, the FAQ says there is no obligation to issue an e-invoice; instead, data about the transaction goes to the tax authority through e-reporting. French-established businesses must also e-report their dealings with foreign operators.
For a UK business, that means:
- **Selling to a French business:** you are not obliged to issue a French e-invoice. Any e-reporting of the transaction is your French customer's job.
- **Selling to French consumers where VAT is due in France:** the FAQ says some non-established foreign businesses may be subject to e-reporting. That is more likely if you are registered for French VAT. Take advice.
## ViDA: what the EU changes in 2030
The EU's VAT in the Digital Age (ViDA) package was adopted on 11 March 2025 as Directive (EU) 2025/516 and entered into force on 14 April 2025. According to the European Commission:
- since entry into force, member states "are able to introduce mandatory e-invoicing under specific conditions";
- digital reporting requirements "will affect cross-border B2B transactions from 1 July 2030";
- by 1 January 2035, member states with their own real-time reporting systems must align with the EU system.
ViDA's cross-border reporting concerns trade **between EU member states**. A UK supplier selling from Great Britain into the EU is making an export, not an intra-EU supply.
**Northern Ireland: not confirmed.** Under the Windsor Framework, EU VAT rules on goods continue to apply in Northern Ireland, and NI businesses use XI VAT numbers for EU goods trade. We have not found official guidance on how ViDA's July 2030 reporting will apply to NI businesses' intra-EU goods supplies. See [E-invoicing in Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat).
## Why EU customers ask anyway
Even when the law does not require it, expect requests:
- **Their systems.** A Belgian business that receives all domestic invoices over Peppol would rather not key in yours by hand.
- **Accounts payable policy.** Large groups often require all suppliers, foreign or not, to use their preferred channel.
- **Tenders.** EU public bodies have had to accept EN 16931 e-invoices for years and often prefer them.
## Peppol helps both ways
The UK government announced on 23 June 2026 that Peppol "will be the core interoperability network for e-invoicing in the UK." Once you are connected for the UK mandate, you can also reach any EU customer registered on Peppol, using the same Access Point.
Watch for differences, though:
- **Invoice rules.** EU recipients may expect [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide) or a national variant such as Germany's XRechnung.
- **VAT treatment.** An export or reverse charge invoice needs the right VAT category code and wording. See [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
- **Currency.** If you invoice in euros, the VAT details still need to follow UK rules. See [Multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
- **Identifiers.** Your customer will look you up by [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk). See [Peppol participant IDs in the UK](https://einvoices.uk/news/peppol-participant-id-uk).
## What is not yet known
- Whether the UK's 2029 rules will cover invoices to overseas customers. The consultation response noted that respondents want clarity on cross-border transactions, and the roadmap may address it.
- How ViDA reporting will interact with Northern Ireland goods trade.
- Final Belgian legislation on non-established businesses, which the FAQ says is still being amended.
## What to do now
1. List EU customers by country and check whether you have any establishment or VAT registration there.
2. Ask your largest EU customers whether they want Peppol invoices, and what they need on them.
3. Make sure your software or Access Point can send to EU Peppol participants.
4. If you have an EU establishment or local VAT registration, get local advice about domestic mandates.
5. Keep an eye on the [timeline](https://einvoices.uk/timeline) for UK cross-border rules.
## Frequently asked questions
### Do I have to send e-invoices to my EU customers?
Usually not as a legal matter. In the countries we checked (Belgium, France, Germany, Italy), the e-invoicing obligation applies to businesses established in that country. A UK supplier with no establishment there is generally outside it. Your customer may still ask for one.
### Does ViDA apply to UK businesses?
ViDA is an EU law. Its digital reporting requirements, from 1 July 2030, cover cross-border trade between EU member states. It does not apply to UK domestic invoicing. How it may affect Northern Ireland goods trade has not been confirmed.
### Can I use Peppol to invoice EU customers?
Yes, if your customer is on Peppol. Peppol is used in many EU countries, including Belgium, where it is the network for the 2026 mandate.
---
How to cite: "Selling to EU customers: do UK businesses need e-invoices?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-businesses-selling-to-eu-e-invoicing
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK e-invoicing consultation response: summary of key points
> What the 2025 HMRC and DBT e-invoicing consultation asked, who replied, and what the November 2025 response decided: 2029 mandate, decentralised, no RTR.
- Canonical URL: https://einvoices.uk/news/uk-e-invoicing-consultation-2025-summary
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Analysis
- Topics: 2029 mandate, HMRC, Budget, Small business
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector)
- [Electronic invoicing: promoting e-invoicing across UK businesses and the public sector](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/electronic-invoicing-promoting-e-invoicing-across-uk-businesses-and-the-public-sector)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
---
The UK's e-invoicing consultation ran from **13 February to 7 May 2025** and drew **342 responses**. The government's response, published on **26 November 2025**, confirmed mandatory e-invoicing for all VAT invoices from 2029, a decentralised model, no real-time reporting at launch, and an implementation roadmap at Budget 2026.
Here is what it asked, who answered, and what the government decided.
## The consultation in brief
"Promoting electronic invoicing across UK businesses and the public sector" was run jointly by HMRC and the Department for Business and Trade (DBT). It asked 34 questions under four themes:
- the different models of e-invoicing
- whether adoption should be mandatory or voluntary
- the scope of any mandate
- whether e-invoicing should come with real-time digital reporting
It defined e-invoicing as "the digital exchange of invoice information directly between buyers' and suppliers' financial systems". It said PDFs, Word documents, images, HTML invoices, OCR and faxes are not e-invoices for this purpose.
The consultation was open about its leanings. It said the government did "not plan to explore" a centralised model in detail, and asked whether focusing on a decentralised four-corner model was right.
## Who responded
| Group | Number |
|---|---|
| Total responses | 342 |
| Based only in the UK | 259 |
| UK and international | 30 |
| Overseas only | 30 |
| Businesses | 203 |
| of which SMEs (fewer than 250 staff) | 141 (92 micro, 31 small, 18 medium) |
| of which large | 40 |
| Already using e-invoicing | 126 |
| Aware but chose not to adopt | 105 |
The biggest sector groups were accountancy, bookkeeping and tax (18%) and software (15%). Of 255 who answered, 69% use an accountant.
## What respondents said
**Benefits.** Fewer errors, faster approval and payment, lower costs and better audit trails. The response cites industry research claiming a 20% reduction in late payments and an annual saving of £11,300 for small firms. These are third-party figures quoted by the government, not HMRC estimates.
**Costs.** Reported processing costs ranged "from negligible amounts to over £50 per invoice", with smaller, manual businesses at the higher end. The response warns that the sample was not representative.
**Barriers.** Cost, especially for SMEs, was the most cited barrier. Others were integrating with ERP and legacy systems, staff training, cybersecurity, GDPR and "unclear technical requirements and short lead-in times".
**Mandate.** "A significant proportion" supported a mandate for B2B and B2G. Some suggested phasing, starting with B2G. Others said phased rollouts elsewhere had been harder to comply with than a single date.
**Model.** 63% agreed the government was right to focus on a decentralised model; most others expressed no opinion.
**Standards.** Many respondents wanted alignment with Peppol and [EN 16931](https://einvoices.uk/news/en-16931-explained), along with flexibility for sector needs.
**Timing.** Many said they could implement within a year, mostly within six months. A few smaller firms with low awareness said five years or more.
**Real-time reporting.** Views were mixed, and many asked for it to be staggered after e-invoicing.
## What the government decided
These points are **confirmed** in the response:
1. **Mandate.** "The UK will introduce mandatory e-invoicing for all VAT invoices from 2029." Budget 2025 specified April 2029.
2. **Scope.** VAT invoices, which "are typically issued for business to business (B2B) and business to government (B2G) transactions where VAT is due (though not for business to customer transactions)."
3. **Non-VAT-registered businesses.** The smallest businesses "who are not required and choose not to be registered for VAT will not be obliged to adopt this technology."
4. **Model.** The focus on a decentralised model "has not changed following the consultation responses."
5. **Real-time reporting.** Not alongside the 2029 mandate; it may follow once e-invoicing is well established.
6. **Standards.** The government will "review the risks and benefits of adopting an existing standard or designing a UK-specific standard", including possible extensions for sector needs.
7. **Next steps.** Detailed stakeholder engagement from January 2026, and an implementation roadmap at Budget 2026.
The response also noted that concerns about self-billing and the VAT reverse charge "have been addressed" in other countries' mandates. That is an observation, not a UK rule.
## What happened after the response
- **From January 2026:** the promised engagement got under way. HMRC's Transformation Roadmap update 2026 says it "launched Policy Development and Technical Workshops" with DBT and industry to design the regime and inform the roadmap.
- **23 June 2026:** the government announced that "the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK", and said it would keep engaging on legacy systems that cannot interoperate.
- **28 October 2026:** Budget 2026, where the roadmap is due.
## What the response did not settle
- The UK invoice specification (Peppol BIS Billing 3.0, or a UK [CIUS](https://einvoices.uk/glossary#cius))
- Penalties, and whether they mirror MTD
- Accreditation of service providers
- Treatment of simplified invoices, receipts, self-billing and cross-border supplies
- Any financial support. Many respondents asked for grants; none were promised.
## What to do now
- Read the response itself if you advise clients; it is the clearest official statement of intent.
- Use the time before the roadmap to map your invoice volumes and systems.
- Follow our [Budget 2026 preview](https://einvoices.uk/news/budget-2026-e-invoicing-roadmap-what-to-watch), the [history of UK e-invoicing](https://einvoices.uk/news/history-of-e-invoicing-uk) and the [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### When was the UK e-invoicing consultation?
HMRC and the Department for Business and Trade ran it from 13 February to 7 May 2025. The response was published on 26 November 2025, alongside Budget 2025.
### What did the consultation response decide?
Mandatory e-invoicing for all VAT invoices from 2029, a decentralised model, no real-time reporting at launch, and a roadmap at Budget 2026. Detailed engagement with stakeholders began in January 2026.
### Did the consultation response confirm Peppol?
No. The response said the government would review existing standards or a UK-specific one. Peppol was announced separately on 23 June 2026 as the core interoperability network.
---
How to cite: "UK e-invoicing consultation response: summary of key points", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-e-invoicing-consultation-2025-summary
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK e-invoicing readiness checklist for the 2029 mandate
> A practical, step-by-step e-invoicing checklist for UK businesses preparing for the April 2029 mandate: scope, data, software, Peppol, suppliers and testing.
- Canonical URL: https://einvoices.uk/news/uk-e-invoicing-readiness-checklist
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: 2029 mandate, Compliance, Peppol, Finance teams
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Record keeping (VAT Notice 700/21)](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
- [Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/)
## Key points
- Prepare in five areas, in order: scope, inventory, data, software and Peppol connection, then suppliers and customers.
- Start by confirming you are VAT-registered and counting the invoices and credit notes you send and receive each month, and the systems that create them.
- Clean your master data now (your own and customers' VAT numbers, duplicates, VAT rates, buyer references), because e-invoices are checked by machines.
- Ask your software provider in writing whether it can send and receive Peppol invoices. Most businesses connect through their software and a certified Access Point.
- No interim deadlines have been confirmed. The implementation roadmap is due at Budget 2026 on 28 October 2026.
---
The best way to prepare for UK e-invoicing is to work through five areas in order: **scope, inventory, data, software and Peppol connection, then suppliers and customers**. This checklist turns each into concrete tasks you can start today, ahead of the mandate for VAT invoices that begins on **April 2029**.
It is written for any VAT-registered business, from a two-person company to a group finance team. Smaller businesses will tick many items off in minutes; larger ones should treat each section as a workstream. For a fuller project view, see our [e-invoicing project plan for finance teams](https://einvoices.uk/news/e-invoicing-project-plan-finance-teams).
## What is confirmed, and what is not
Before you plan, separate the facts from the guesswork.
| Status | Point |
|---|---|
| **Confirmed** | E-invoicing will be mandatory for VAT invoices from April 2029 (government consultation response, Budget 2025). |
| **Confirmed** | A decentralised model: invoices go between businesses through service providers, not through a government portal. |
| **Confirmed** | Peppol will be the core interoperability network. The GOV.UK Tax update 2026 summary (23 June 2026) says: "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK." |
| **Confirmed** | No real-time reporting to HMRC alongside the 2029 mandate. |
| **Not yet confirmed** | The exact data standard, any UK-specific rules, phasing, exemptions, penalties, provider accreditation and the treatment of B2C sales. |
The implementation roadmap is due at **Budget 2026 on 28 October 2026**. Nothing in this checklist depends on details that are still open, so the work is not wasted whatever the roadmap says. We will update this page when it is published.
## 1. Scope: are you in?
- [ ] Confirm you are VAT-registered, or likely to be by April 2029. The mandate covers VAT invoices, so businesses that are not VAT-registered are not expected to be required to issue e-invoices. Try our [scope checker](https://einvoices.uk/tools/am-i-in-scope).
- [ ] List who you invoice: other VAT-registered businesses ([B2B](https://einvoices.uk/glossary#b2b-b2g-b2c)), public-sector bodies ([B2G](https://einvoices.uk/glossary#b2b-b2g-b2c)), consumers, or overseas customers.
- [ ] Flag edge cases that need watching: [self-billing](https://einvoices.uk/news/self-billing-e-invoicing-uk), [VAT groups](https://einvoices.uk/news/e-invoicing-vat-groups), [retail receipts and simplified invoices](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing), [Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat) and the [Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
- [ ] Note any public-sector customers. Bodies covered by the Public Procurement Act 2023 are already required to accept e-invoices, and NHS Supply Chain already requires suppliers to invoice through Peppol (both stated in the government's consultation response).
## 2. Inventory: what do you send and receive?
- [ ] Count invoices and credit notes **issued** per month, by customer type.
- [ ] Count invoices and credit notes **received** per month, by supplier.
- [ ] List every system that creates invoices: accounting package, ERP, billing platform, job management tool, e-commerce site, spreadsheets, Word templates.
- [ ] List how invoices arrive today: email PDF, paper, supplier portal, EDI, scanning service.
- [ ] Identify invoice types that are unusual: credit notes, self-billed invoices, foreign currency, reverse charge (for example [construction](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice)), invoices with large attachments.
- [ ] Name an owner for e-invoicing, even if it is one person part-time.
## 3. Data: is your invoice data good enough?
E-invoices are checked by machines. Data that a human would forgive will fail validation. See our guide to [master data clean-up](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
- [ ] Check your own legal name, address and VAT number are correct in every system.
- [ ] Check customer VAT numbers using HMRC's [Check a UK VAT number](https://www.gov.uk/check-uk-vat-number) service, and record where the number is missing or invalid.
- [ ] Remove duplicate customer and supplier records.
- [ ] Make sure every invoice line carries a VAT rate and that you can map it to a [VAT category code](https://einvoices.uk/news/uk-vat-category-codes-peppol).
- [ ] Record purchase order numbers and buyer references that customers require (see [buyer reference BT-10](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol)).
- [ ] Confirm invoices already meet HMRC's VAT invoice content rules in [VAT Notice 700](https://www.gov.uk/guidance/vat-guide-notice-700), section 16. An e-invoice still has to be a valid VAT invoice ([what a VAT invoice must include](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing)).
## 4. Software and Peppol connection
Most businesses will not connect to Peppol themselves. Their accounting or ERP software will work with a certified [Peppol Access Point](https://einvoices.uk/glossary#access-point).
- [ ] Ask your software provider, in writing, the questions in our guide to [checking whether your software supports Peppol](https://einvoices.uk/news/check-accounting-software-peppol-support).
- [ ] Find out whether sending and receiving are both supported, and whether the Access Point is built in or a separate service.
- [ ] Check whether all your invoicing systems can produce structured invoice data, not just PDFs. A [PDF is not an e-invoice](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice).
- [ ] If you run an ERP, read our [ERP e-invoicing guide](https://einvoices.uk/news/e-invoicing-erp-sap-oracle-dynamics-netsuite).
- [ ] If you need a separate provider, use our guide to [choosing a Peppol Access Point](https://einvoices.uk/news/how-to-choose-a-peppol-access-point).
- [ ] Decide which identifier you will use as your [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk). The Peppol code list includes scheme 9932 for UK VAT numbers.
- [ ] Budget for licences, set-up, integration and staff time (see [what e-invoicing costs](https://einvoices.uk/news/e-invoicing-cost-uk)). Get quotes rather than relying on averages.
## 5. Processes: accounts payable and receivable
- [ ] **Receivable:** map the route from sales order to sent e-invoice, including who fixes a rejected invoice. See [accounts receivable e-invoicing](https://einvoices.uk/news/accounts-receivable-e-invoicing-uk).
- [ ] **Payable:** decide how incoming e-invoices will be matched, coded and approved. See [accounts payable e-invoicing](https://einvoices.uk/news/accounts-payable-e-invoicing-uk).
- [ ] Decide whether you will use Peppol [invoice responses](https://einvoices.uk/news/peppol-invoice-response-message-level-response) to tell suppliers an invoice was received, queried, approved or paid.
- [ ] Review archiving. HMRC says VAT records should generally be kept for at least six years ([VAT Notice 700/21](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)). Check where e-invoices will be stored and how you will retrieve them. See [e-invoice archiving](https://einvoices.uk/news/e-invoice-archiving-retention-uk).
## 6. Suppliers and customers
- [ ] Segment suppliers by volume and tell the largest ones your plans early. See [supplier onboarding](https://einvoices.uk/news/supplier-onboarding-e-invoicing).
- [ ] Ask key customers how they want to receive invoices and whether they are already on Peppol. You can [check the Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk).
- [ ] Update supplier and customer onboarding forms to capture Peppol IDs and VAT numbers.
## 7. Test, train and go live
- [ ] Send and receive test invoices with a friendly customer and supplier.
- [ ] Learn the [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors) and who fixes each one.
- [ ] Train the people who raise invoices, approve bills and handle supplier queries.
- [ ] Plan a cut-over date well before April 2029 so problems surface while there is still time.
- [ ] Re-check this list against the official roadmap and any HMRC guidance once published.
## How much of this applies to you?
| Business | Focus on |
|---|---|
| Sole trader or micro business on cloud accounting | Sections 1, 3 and 4. Your software provider will do most of the work. See our [small business guide](https://einvoices.uk/news/e-invoicing-small-business-guide). |
| Growing SME with several systems | All sections, with extra time on inventory and data. |
| Large or group business on an ERP | All sections as formal workstreams, with supplier onboarding and testing as the longest tasks. |
| Accountant or bookkeeper | Run this checklist per client. See our [guide for accountants](https://einvoices.uk/news/e-invoicing-guide-for-accountants). |
## What to do now
This week, do three things: confirm scope, count your invoices, and send your software provider the questions in section 4. Then watch the Budget on 28 October 2026 for the roadmap and check the [timeline](https://einvoices.uk/timeline) and [mandate guide](https://einvoices.uk/mandate) for updates. None of this is tax advice; for your own position, follow HMRC guidance as it is published.
## Frequently asked questions
### What should a UK business do first to prepare for e-invoicing?
Confirm whether you are in scope (the mandate covers VAT invoices from April 2029), then count the invoices you send and receive and list every system that creates or processes them. That inventory drives every later decision.
### Do I need to buy e-invoicing software now?
Not necessarily. The government roadmap is due at Budget 2026 on 28 October 2026 and the final data standard is not yet published. Start with scope, data clean-up and questions to your current software provider.
### Will I need to receive e-invoices as well as send them?
Plan for both. If your VAT-registered suppliers must issue e-invoices from April 2029, you will need a way to receive them, usually through your accounting software and a Peppol Access Point.
### Is there a deadline before April 2029?
No interim deadlines have been confirmed yet. The Budget 2026 roadmap is expected to set milestones towards April 2029.
---
How to cite: "UK e-invoicing readiness checklist for the 2029 mandate", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-e-invoicing-readiness-checklist
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# UK VAT category codes in Peppol: S, Z, E, AE and O explained
> Which Peppol VAT category code to use for UK standard, reduced, zero-rated, exempt, outside-scope and reverse charge supplies, and the rules each triggers.
- Canonical URL: https://einvoices.uk/news/uk-vat-category-codes-peppol
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, Peppol, Technical, Validation
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Duty or tax or fee category code (Subset of UNCL5305) – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/UNCL5305/)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [EN16931 model bound to UBL – Peppol BIS Billing 3.0 rules](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/)
- [VATEX code list – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/codelist/vatex/)
- [ConnectingEurope/eInvoicing-EN16931 validation artefacts](https://github.com/ConnectingEurope/eInvoicing-EN16931)
- [Charge, reclaim and record VAT: Charging VAT – GOV.UK](https://www.gov.uk/vat-record-keeping/vat-invoices)
- [VAT rates on different goods and services – GOV.UK](https://www.gov.uk/guidance/rates-of-vat-on-different-goods-and-services)
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
---
In a Peppol invoice, UK standard-rated and reduced-rated lines both use VAT category code **S** (with a rate of 20 or 5), zero-rated lines use **Z**, exempt lines use **E**, reverse charge lines use **AE** and supplies outside the scope of VAT use **O**. Each code switches on its own set of EN 16931 validation rules, and most UK validation errors about VAT come from choosing the right code with the wrong rate, reason or VAT number.
This guide maps every common UK VAT treatment to a code, shows the rules that fire, and flags where the UK mandate may end up doing things differently.
## Where the code goes
The code appears in three places in a UBL invoice, and the values must line up:
- each invoice line: `cac:Item/cac:ClassifiedTaxCategory/cbc:ID` (BT-151)
- each document-level allowance or charge: `cac:AllowanceCharge/cac:TaxCategory/cbc:ID` (BT-95, BT-102)
- each VAT breakdown: `cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:ID` (BT-118)
Peppol BIS Billing 3.0 says one VAT breakdown must be given "for each distinct combination of VAT category code and VAT rate". So an invoice with 20% lines and 5% lines has two `S` breakdowns, one per rate. Trailing zeros do not matter: 20 and 20.00 are the same rate.
## The UK mapping
| UK treatment | Code | Rate (BT-152 / BT-119) | Exemption reason | Key rules |
|---|---|---|---|---|
| Standard rate (20%) | S | 20 | Not allowed | BR-S-05, BR-S-08, BR-S-09, BR-S-10 |
| Reduced rate (5%) | S | 5 | Not allowed | Same as above, separate breakdown |
| Zero rate (0%) | Z | 0 | Not allowed | BR-Z-05, BR-Z-09, BR-Z-10 |
| Exempt | E | 0 | Mandatory (code or text) | BR-E-05, BR-E-10 |
| Domestic reverse charge (for example construction) | AE | 0 | Mandatory ("Reverse charge") | BR-AE-02, BR-AE-05, BR-AE-10 |
| Outside the scope of UK VAT | O | Must be absent | Mandatory | BR-O-02, BR-O-05, BR-O-11 |
| Export of goods outside the UK | Z or G | 0 | G: mandatory | BR-G-10 (if G), see below |
The UK has three rates: standard (currently 20%), reduced (currently 5%) and zero, plus supplies that are exempt or outside the scope of UK VAT, according to GOV.UK. Peppol's code list (a subset of UN/CEFACT 5305, version D.16B) offers AE, E, S, Z, G, O, K, L, M and B. L and M are Spanish (Canary Islands, Ceuta and Melilla) and B is Italian, so a UK business will not use them. Any other code, such as the UN/CEFACT "AA" lower rate, fails with **BR-CL-17** (breakdowns, allowances and charges) and **BR-CL-18** (lines), which share the same text: "Invoice tax categories MUST be coded using UNCL5305 code list".
## Standard and reduced rate: S
Rule **BR-S-05** says that where the line category is "Standard rated", "the Invoiced item VAT rate (BT-152) shall be greater than zero". If your system sends a zero-rated item as `S` with 0%, this is the error you get. Use `Z` instead.
**BR-S-10** stops you adding an exemption reason to an `S` breakdown. Some ERP exports fill the reason field with "Standard rate" by default, and that alone is enough to reject the invoice.
A correct invoice with a 20% line and a 5% line needs two breakdowns:
```xml
176.00
865.00
173.00
S
20
VAT
60.00
3.00
S
5
VAT
```
We validated a full invoice containing this block against the EN 16931 UBL rules and the Peppol BIS Billing 3.0 rules with no errors.
## Zero rate: Z
Zero-rated is still a taxable supply in UK law. GOV.UK puts it this way: "Zero rate means you must still account for and charge VAT … but the rate you use is 0%." In Peppol, use `Z` with `0`. Do not add an exemption reason: **BR-Z-10** says a "Zero rated" breakdown "shall not have a VAT exemption reason code (BT-121) or VAT exemption reason text (BT-120)".
## Exempt: E
Exempt supplies (for example many insurance, finance and education supplies) use `E`, rate 0. **BR-E-10** requires "a VAT exemption reason code (BT-121) or a VAT exemption reason text (BT-120)".
The VATEX code list used for BT-121 is built around articles of the EU VAT Directive (codes such as `VATEX-EU-132-1I`). It contains no UK-specific codes. Until UK guidance says otherwise, the safer option for a UK exempt supply is the free-text reason:
```xml
E
0
Exempt from VAT
VAT
```
Make the text describe the actual exemption where you can. HMRC's VAT guide also requires zero-rated and exempt items on a VAT invoice to "show clearly that there's no VAT payable" with "a separate total for their values". Separate breakdowns per code do that.
## Reverse charge: AE
For the UK domestic reverse charge, use `AE` with rate 0, tax amount 0 and the reason "Reverse charge" (or code `VATEX-EU-AE`). **BR-AE-02** also requires both the seller's and the buyer's VAT identifiers. Construction has a twist: HMRC wants the VAT amount or rate shown, but EN 16931 forces the rate field to zero. See our full guide to [reverse charge construction e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
## Outside the scope: O, and why it is awkward
`O` ("Not subject to VAT") is the strictest code in EN 16931:
- **BR-O-02**: an invoice with an `O` line "shall not contain the Seller VAT identifier (BT-31), the Seller tax representative VAT identifier (BT-63) or the Buyer VAT identifier (BT-48)".
- **BR-O-05**: an `O` line "shall not contain an Invoiced item VAT rate (BT-152)".
- **BR-O-11**: an invoice with an `O` breakdown "shall not contain other VAT breakdown groups".
So a VAT-registered UK business cannot put an outside-scope disbursement on the same Peppol invoice as its standard-rated fees, and cannot show its own VAT number on an `O`-only invoice. We tested this: one `O` line on an otherwise standard invoice triggered BR-O-02, BR-O-11, BR-O-12 and BR-O-14. In practice, outside-scope items either go on a separate invoice or are handled another way agreed with the buyer. **How the UK mandate will treat outside-scope items on VAT invoices is not yet confirmed.**
## Exports and Northern Ireland
For goods exported outside the UK, UK law zero-rates the supply. Both `Z` and `G` ("Free export item, VAT not charged") pass validation. `G` needs the exemption reason code `VATEX-EU-G` or the text "Export outside the EU" (BR-G-10), which reads oddly for a UK seller. Which code the UK will expect is **not yet confirmed**.
Code `K` (intra-community supply) is for EEA intra-community supplies of goods. It may be relevant to goods moving from Northern Ireland to the EU, but treat that as unconfirmed until UK guidance is out. See [Northern Ireland and XI VAT numbers](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat).
## What the UK mandate may change
All of the above is Peppol BIS Billing 3.0 as it stands (May 2026 release). Peppol is confirmed as the UK's network, but the data standard is not. In its consultation response the government said it "will work closely with stakeholders to review the risks and benefits of adopting an existing standard or designing a UK-specific standard". A UK specification (a [CIUS](https://einvoices.uk/glossary#cius)) could add UK exemption codes, UK reverse charge wording or a different treatment of `O`. Watch the roadmap due at Budget 2026 on 28 October 2026, and the [timeline](https://einvoices.uk/timeline).
## What to do now
- Export your VAT codes from your accounting system and map each to S, Z, E, AE or O using the table above.
- Check that zero-rated items are not coded as S at 0%.
- Make sure exempt lines carry a reason and standard-rated lines do not.
- Find any invoices that mix outside-scope items with taxable items. These will need a decision.
- Read [common Peppol validation errors](https://einvoices.uk/news/common-peppol-validation-errors) and take VAT treatment questions to [HMRC guidance](https://www.gov.uk/guidance/rates-of-vat-on-different-goods-and-services) or your adviser.
## Frequently asked questions
### What VAT category code do I use for 20% VAT in Peppol?
Use S (standard rate) with a VAT rate of 20. The same code S is also used for the UK reduced rate, with a rate of 5.
### Is there a separate code for the UK 5% reduced rate?
No. Peppol BIS Billing 3.0 has no reduced-rate code. You use S with 5 as the rate, and the invoice gets a separate VAT breakdown for the 5% lines.
### What is the difference between Z and E?
Z is zero-rated: a taxable supply at 0%, with no exemption reason allowed. E is exempt: the rate must be 0 and a VAT exemption reason code or text is mandatory.
### Has HMRC published its own VAT category codes for e-invoicing?
Not as of 20 October 2026. The government has said it will decide whether to adopt an existing standard or design a UK-specific one, so any UK-specific coding is not yet confirmed.
---
How to cite: "UK VAT category codes in Peppol: S, Z, E, AE and O explained", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-vat-category-codes-peppol
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# What must a VAT invoice include? HMRC rules mapped to e-invoices
> HMRC's list of what a full VAT invoice must show, and where each item goes in a Peppol BIS Billing 3.0 e-invoice, including the fields Peppol adds on top.
- Canonical URL: https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Guide
- Topics: VAT, HMRC, Compliance, Technical
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [VAT guide (VAT Notice 700) – GOV.UK](https://www.gov.uk/guidance/vat-guide-notice-700)
- [Record keeping (VAT Notice 700/21) – GOV.UK](https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021)
- [Electronic invoicing (VAT Notice 700/63) – GOV.UK](https://www.gov.uk/guidance/electronic-invoicing-notice-70063)
- [Peppol BIS Billing 3.0 (May 2026 release, version 3.0.21)](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [UBL Invoice syntax – Peppol BIS Billing 3.0](https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/tree/)
- [Rules for Peppol BIS 3.0 Billing](https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-peppol/)
---
HMRC says a full VAT invoice must show a unique sequential number, the time of supply, the date of issue, your name, address and VAT registration number, your customer's name and address, a description of what you supplied, and for each item the quantity, unit price, VAT rate and amount excluding VAT. It must also show the total excluding VAT, the rate of any cash discount, and the total VAT in sterling. An e-invoice has to carry the same information. Below is where each item goes in a Peppol BIS Billing 3.0 invoice, and what Peppol adds on top.
## HMRC's list, word for word
Paragraph 16.3.1 of the VAT guide (VAT Notice 700) says you must show:
- "a sequential number based on one or more series which uniquely identifies the document"
- "the time of the supply (tax point)"
- "the date of issue of the document (where different to the time of supply)"
- "your name, address and VAT registration number"
- "the name and address of the person to whom the goods or services have been supplied"
- "a description sufficient to identify the goods or services supplied"
- "for each description, the quantity of the goods or the extent of the services, the rate of VAT, and the amount payable excluding VAT, this can be expressed in any currency"
- "the gross total amount payable, excluding VAT, this can be expressed in any currency"
- "the rate of any cash discount offered"
- "the total amount of VAT chargeable, this must be expressed in sterling"
- "the unit price"
VAT Notice 700/63 on electronic invoicing is direct about e-invoices: "Electronic invoices must contain the same information as paper invoices."
## Where each item goes in a Peppol invoice
| HMRC requirement | EN 16931 business term | UBL element |
|---|---|---|
| Sequential unique number | BT-1 Invoice number | `cbc:ID` |
| Time of supply (tax point) | BT-7 VAT point date, or BT-72 Actual delivery date / BG-14 Invoicing period | `cbc:TaxPointDate`, `cac:Delivery/cbc:ActualDeliveryDate`, `cac:InvoicePeriod` |
| Date of issue | BT-2 Invoice issue date | `cbc:IssueDate` |
| Supplier name | BT-27 Seller name | `cac:PartyLegalEntity/cbc:RegistrationName` |
| Supplier address | BG-5 Seller postal address | `cac:AccountingSupplierParty/cac:Party/cac:PostalAddress` |
| Supplier VAT number | BT-31 Seller VAT identifier | `cac:PartyTaxScheme/cbc:CompanyID` (with `GB` prefix) |
| Customer name and address | BT-44 Buyer name, BG-8 Buyer postal address | `cac:AccountingCustomerParty/...` |
| Description | BT-153 Item name, BT-154 Item description | `cac:Item/cbc:Name`, `cbc:Description` |
| Quantity or extent | BT-129 Invoiced quantity, BT-130 unit | `cbc:InvoicedQuantity/@unitCode` |
| Unit price | BT-146 Item net price | `cac:Price/cbc:PriceAmount` |
| VAT rate per item | BT-151 category, BT-152 rate | `cac:ClassifiedTaxCategory` |
| Amount excluding VAT per item | BT-131 Invoice line net amount | `cac:InvoiceLine/cbc:LineExtensionAmount` |
| Total excluding VAT | BT-109 | `cac:LegalMonetaryTotal/cbc:TaxExclusiveAmount` |
| Cash discount rate | No dedicated field; BT-20 Payment terms (text) | `cac:PaymentTerms/cbc:Note` |
| Total VAT in sterling | BT-110, or BT-111 with BT-6 if not invoicing in GBP | `cac:TaxTotal/cbc:TaxAmount` |
Some notes on the trickier rows.
**Trading names.** HMRC lets you invoice under a trading name, but "you must show the name and address under which you're registered for VAT somewhere on the document". In Peppol, the registered name goes in BT-27 (`RegistrationName`) and the trading name in BT-28 (`cac:PartyName/cbc:Name`).
**Tax point.** BT-7 (`cbc:TaxPointDate`) is the explicit field. Many invoices use the delivery date or invoicing period instead. You cannot send both BT-7 and the BT-8 date code (rule BR-CO-03). Whether the UK will require BT-7 on every invoice is **not yet confirmed**.
**VAT number format.** BR-CO-09 requires the VAT identifier to start with a country prefix: `GB123456789`, not `123456789`.
**Cash discount.** EN 16931 has no structured cash discount field, so the terms go in free text in payment terms. If you offer prompt payment discounts, HMRC's guide (paragraph 18.2.2) also sets out wording for the invoice when you will not issue a credit note.
## What Peppol requires on top of HMRC
A Peppol invoice that meets every HMRC requirement can still be rejected. Peppol BIS Billing 3.0 and EN 16931 add mandatory items HMRC does not ask for, including:
- **Electronic addresses** for both parties. PEPPOL-EN16931-R010: "Buyer electronic address MUST be provided". R020 says the same for the seller.
- **A buyer reference or purchase order reference.** PEPPOL-EN16931-R003: "A buyer reference or purchase order reference MUST be provided." See [buyer reference (BT-10)](https://einvoices.uk/news/purchase-order-reference-buyer-reference-peppol).
- **Specification and process identifiers** (BT-24, BT-23) with fixed Peppol values.
- **Country codes** in both postal addresses (BR-09, BR-11), even for domestic invoices.
- **A VAT breakdown** per VAT category and rate (BR-CO-18), and totals that add up exactly (BR-CO-10 to BR-CO-16).
Some HMRC requirements are only partly enforced. Peppol requires an item net price on every line (BR-26), but no validation rule checks that your numbering is sequential, that the description is "sufficient", or that the tax point is right. Those stay your responsibility.
## Special cases
**Zero-rated and exempt items on the same invoice.** HMRC says these must "show clearly that there's no VAT payable" with "a separate total for their values". Peppol's separate VAT breakdown per code (Z, E) does this. See [UK VAT category codes in Peppol](https://einvoices.uk/news/uk-vat-category-codes-peppol).
**Reverse charge.** Extra wording is required. See [reverse charge construction e-invoices](https://einvoices.uk/news/domestic-reverse-charge-construction-e-invoice).
**Foreign currency.** Amounts can be in any currency, but VAT Notice 700/63 says "you must express the total amount of VAT in sterling where there is a positive rate of VAT due in the UK". See [multi-currency e-invoices](https://einvoices.uk/news/multi-currency-e-invoices-gbp).
**Simplified invoices (£250 or less).** HMRC allows a shorter invoice for supplies of £250 or less including VAT. Whether simplified invoices fall within the 2029 mandate is **not yet confirmed**. See [retail receipts and simplified invoices](https://einvoices.uk/news/b2c-receipts-simplified-invoices-e-invoicing).
**Self-billing.** HMRC requires self-billed invoices to include the reference "self billing". Peppol has invoice type code 389 (self-billed invoice). See [self-billing and e-invoicing](https://einvoices.uk/news/self-billing-e-invoicing-uk).
**Timing.** You must normally issue a VAT invoice within 30 days of the tax point. Nothing announced so far changes that.
## What the 2029 mandate may change
From April 2029, VAT invoices for B2B and B2G supplies must be e-invoices. Today's HMRC content rules are the starting point, but the UK e-invoice specification has not been published. The government has said it will consider "adopting an existing standard or designing a UK-specific standard". A UK specification could make fields mandatory that are optional now, such as tax point date, buyer VAT number or unit price. **None of that is confirmed yet.** The roadmap is due at Budget 2026 on 28 October 2026. Check [the mandate overview](https://einvoices.uk/mandate).
## What to do now
- Run a sample of your current invoices against HMRC's list above.
- Make sure your system stores structured data for each item, not just a PDF: quantity, unit price, VAT rate and net amount per line.
- Clean up customer master data: legal names, full postal addresses with country codes, and GB-prefixed VAT numbers. See [master data clean-up](https://einvoices.uk/news/master-data-cleanup-e-invoicing).
- See a complete [UK Peppol invoice XML example](https://einvoices.uk/news/e-invoice-xml-example-uk).
## Frequently asked questions
### What must a VAT invoice include in the UK?
HMRC lists a unique sequential number, the time of supply, the issue date, your name, address and VAT number, the customer's name and address, a description, quantity, unit price, VAT rate and net amount per item, the total excluding VAT, any cash discount rate, and the total VAT in sterling.
### Does an e-invoice need to contain anything different from a paper VAT invoice?
Under current HMRC guidance, no. VAT Notice 700/63 says electronic invoices must contain the same information as paper invoices. A Peppol invoice will also need extra technical fields such as electronic addresses.
### Can a VAT invoice be in euros?
Yes. Amounts can be in any currency, but the total VAT must be shown in sterling where UK VAT is due.
### Will the 2029 mandate change what a VAT invoice must include?
Possibly. The UK e-invoice data standard has not been published yet, so any new mandatory fields are not yet confirmed.
---
How to cite: "What must a VAT invoice include? HMRC rules mapped to e-invoices", einvoices.uk, 20 October 2026, https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# What is Peppol? A plain-English guide for UK businesses
> Peppol is an international network and set of standards for sending e-invoices between businesses. The UK has confirmed it as the core network for 2029.
- Canonical URL: https://einvoices.uk/news/what-is-peppol
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: Peppol, 2029 mandate, Four-corner model
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [About - OpenPeppol](https://peppol.org/about/)
- [Peppol Interoperability Framework - OpenPeppol](https://peppol.org/learn-more/peppol-interoperability-framework/)
- [OpenPeppol eDEC Specifications](https://docs.peppol.eu/edelivery/)
- [Peppol BIS Billing](https://docs.peppol.eu/poacc/billing/3.0/bis/)
- [NHS eProcurement Strategy (Department of Health, April 2014)](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/344574/NHS_eProcurement_Strategy.pdf)
## Key points
- Peppol is an international network and shared set of document standards that lets one business's software send e-invoices straight to another's, through certified service providers (Access Points).
- On 23 June 2026 the UK government announced that Peppol will be the core interoperability network for e-invoicing in the UK, ahead of the mandate from April 2029.
- Peppol is run by OpenPeppol AISBL, a non-profit association under Belgian law. It is not a portal or a provider of exchange services.
- It uses the four-corner model: supplier, supplier's provider, buyer's provider and buyer, with each side paying only its own provider.
- Not yet confirmed for the UK: whether Peppol BIS Billing 3.0 gets UK-specific rules (a CIUS), which identifier businesses register under, and whether a national Peppol Authority is appointed.
---
Peppol is an international network, plus a shared set of document standards, that lets businesses send e-invoices and other trading documents straight from one company's software to another's. On 23 June 2026 the UK government announced that Peppol "will be the core interoperability network for e-invoicing in the UK", so it will carry most of the invoices covered by the [2029 mandate](https://einvoices.uk/mandate).
This guide explains what Peppol is, how it works and what is still to be decided for the UK.
## Peppol in one paragraph
Think of Peppol as email for invoices, with stricter rules. Each business picks a certified service provider (an [Access Point](https://einvoices.uk/glossary#access-point)). The provider gives the business a Peppol address, its [Peppol ID](https://einvoices.uk/news/peppol-participant-id-uk). To send an invoice, your software hands structured data to your provider. Your provider looks up the buyer's address, checks the invoice against the rules and delivers it to the buyer's provider, which passes it into the buyer's system. Nobody retypes anything, and you do not need a separate link to each customer.
## Who runs it?
Peppol is managed by **OpenPeppol AISBL**, which OpenPeppol describes as "a non-profit international association established under Belgian law". Peppol started in 2008 as a large-scale pilot financed by the European Commission and the project's members. When the project ended in 2012, OpenPeppol took over its services.
OpenPeppol is clear about what Peppol is not: "Peppol is not a portal, or a provider of exchange services." It writes the specifications and the agreements. Certified service providers do the actual sending and receiving.
In each country, a **Peppol Authority** (usually, but not always, a government body) oversees the service providers in its jurisdiction. Where there is none, OpenPeppol acts as the authority itself. The UK position is explained in [Who is the UK Peppol Authority?](https://einvoices.uk/news/peppol-authority-uk).
## The three building blocks
**1. A network (eDelivery).** Providers exchange messages over the internet using a common protocol (AS4) and certificates issued under Peppol's own security setup. Before sending, a provider looks up where the buyer can receive. It does this through two registries: the SML and the SMP. See [Peppol SMP and SML explained](https://einvoices.uk/news/peppol-smp-sml-explained).
**2. Standard documents.** The invoice itself follows a Peppol Business Interoperability Specification (BIS). For invoices and credit notes this is [Peppol BIS Billing 3.0](https://einvoices.uk/news/peppol-bis-billing-3-uk-guide). It is based on the European standard [EN 16931](https://einvoices.uk/news/en-16931-explained) and written in [UBL](https://einvoices.uk/news/ubl-vs-cii-uk) XML. Peppol also has specifications for orders, despatch advice and invoice responses.
**3. Agreements.** Every certified provider signs a Peppol Service Provider Agreement and passes conformance testing before it can offer Peppol services. That contract framework is what makes it safe to send an invoice to a provider you have never dealt with.
## The four-corner model
Peppol uses the [four-corner model](https://einvoices.uk/news/four-corner-model-explained):
| Corner | Who | What they do |
|---|---|---|
| C1 | Supplier | Creates the invoice in its accounting or ERP software |
| C2 | Supplier's provider | Validates the invoice, looks up the buyer and sends it |
| C3 | Buyer's provider | Receives the invoice and delivers it onward |
| C4 | Buyer | Imports the invoice into its own system |
Each side pays only its own provider. The NHS eProcurement Strategy, published by the Department of Health in April 2014, put it this way: "There are no fees payable between access points, with each party paying only their own PEPPOL access point provider."
## Why the UK chose it
Peppol is already used in the UK. The 2014 NHS eProcurement Strategy adopted Peppol for purchase orders, despatch advice and invoices across the NHS and its suppliers. NHS Supply Chain now requires its suppliers to issue e-invoices through the Peppol network, as the government noted in its November 2025 consultation response.
Peppol is also used in many EU countries and in places such as Australia, Japan, Singapore and Malaysia. Respondents to the 2025 consultation often named it as their preferred option because of that international reach. For a UK business, it means one connection can, in principle, reach customers at home and abroad.
## What is confirmed and what is not
**Confirmed (official):**
- E-invoicing will be mandatory for B2B and B2G VAT invoices from April 2029.
- Peppol will be the core interoperability network (GOV.UK Tax Update summary, 23 June 2026).
- The model is decentralised, with no central government platform in the invoice flow.
- There will be no real-time reporting to HMRC at launch.
**Not yet confirmed:**
- Whether the UK will use Peppol BIS Billing 3.0 as it stands or add UK-specific rules (a [CIUS](https://einvoices.uk/glossary#cius)).
- Which identifier UK businesses should register under (see [Peppol EAS codes for the UK](https://einvoices.uk/news/peppol-eas-codes-uk-9932-0088)).
- Whether the UK will appoint a national Peppol Authority, and who.
- How service providers will be accredited for the mandate.
- What "core" means for invoices sent outside Peppol. The government has said it will keep engaging on legacy systems that cannot interoperate.
HMRC and the Department for Business and Trade have said they will publish an implementation roadmap at Budget 2026 on 28 October 2026. We expect several of these points to be covered there.
## Common misunderstandings
- **"Peppol is a file format."** It is mainly a network and a rulebook. The format is set by the BIS, usually UBL XML.
- **"I have to join Peppol myself."** Almost no business connects directly. You connect through your accounting software or a certified provider.
- **"A PDF sent over Peppol counts."** No. The invoice must be structured data. A PDF can travel as an attachment, but it is not the invoice. See [Does a PDF invoice count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice)
- **"Peppol sends my invoices to HMRC."** Not at launch. The UK model has no real-time reporting.
## What to do now
1. Ask your accounting or ERP provider whether it can send and receive Peppol BIS Billing 3.0 invoices, and through which certified provider.
2. Check whether your customers are already on Peppol using the [Peppol Directory](https://einvoices.uk/news/peppol-directory-lookup-uk).
3. Find out which Peppol ID you would use. For most VAT-registered UK businesses this is likely to be based on the VAT number. See [Peppol participant IDs in the UK](https://einvoices.uk/news/peppol-participant-id-uk).
4. Watch the Budget on 28 October 2026 for the roadmap, and keep an eye on our [timeline](https://einvoices.uk/timeline).
## Frequently asked questions
### What is Peppol in simple terms?
Peppol is a network and a set of rules that lets one business's software send a structured e-invoice to another business's software, whichever provider each side uses. It works a bit like email: you pick a provider and can then reach everyone on the network.
### Is Peppol confirmed for UK e-invoicing?
Yes. On 23 June 2026 the government announced that Peppol will be the core interoperability network for e-invoicing in the UK, ahead of the mandate from April 2029.
### Is Peppol a government system or a piece of software?
Neither. Peppol is run by OpenPeppol, a non-profit association under Belgian law. It does not sell software or run a portal; businesses connect through certified service providers.
### What does Peppol stand for?
It originally stood for Pan-European Public Procurement On-Line, the EU pilot project it grew out of. Today it is simply used as a name, and the network is used well beyond Europe and well beyond public procurement.
---
How to cite: "What is Peppol? A plain-English guide for UK businesses", einvoices.uk, 20 October 2026, https://einvoices.uk/news/what-is-peppol
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.
---
# Who is in scope of the UK e-invoicing mandate in 2029?
> From April 2029 every VAT invoice must be an e-invoice. In practice that means VAT-registered businesses selling to other businesses or the public sector.
- Canonical URL: https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate
- Published: 20 October 2026 (2026-10-20)
- Last updated: 20 October 2026 (2026-10-20) (not updated since publication)
- Author: Floris Lindenaar, Editor, e-invoicing expert (https://einvoices.uk/authors/floris-lindenaar)
- Publisher: einvoices.uk (https://einvoices.uk)
- Type: Explainer
- Topics: 2029 mandate, VAT, Compliance, HMRC
- Language: en-GB (UK English); covers the United Kingdom
## Sources
- [Promoting electronic invoicing across UK businesses and the public sector: consultation response](https://www.gov.uk/government/consultations/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector/outcome/promoting-electronic-invoicing-across-uk-businesses-and-the-public-sector-consultation-response)
- [Budget 2025 (HTML)](https://www.gov.uk/government/publications/budget-2025-document/budget-2025-html)
- [Tax update 2026: simplification, modernisation and fairness summary](https://www.gov.uk/government/publications/summary-of-tax-update-2026-simplification-modernisation-and-fairness/tax-update-2026-simplification-modernisation-and-fairness-summary)
- [VAT guide (VAT Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700)
- [HMRC Transformation Roadmap: update 2026](https://www.gov.uk/government/publications/hmrc-transformation-roadmap-progress-update-2026/hmrc-transformation-roadmap-update-2026)
## Key points
- From April 2029 all VAT invoices must be e-invoices, so VAT-registered businesses invoicing other businesses (B2B) or the public sector (B2G) are in scope.
- The test is VAT registration, not size: no turnover threshold, sector exemption or phased start for small businesses has been announced.
- Businesses that are not VAT-registered cannot issue VAT invoices, so the government says many of the smallest businesses will not be obliged to adopt e-invoicing.
- Not yet confirmed: receipts and simplified invoices, self-billing, zero-rated or exempt-only invoices, cross-border supplies and penalties.
- The implementation roadmap is due at Budget 2026 on 28 October 2026. Real-time reporting to HMRC will not be introduced in 2029.
---
If you are **VAT-registered and you issue VAT invoices to other businesses or to the public sector**, you are in scope of the UK e-invoicing mandate. The government has said that from April 2029 "all VAT invoices" must be issued as e-invoices, and that means structured data exchanged between systems, not a PDF sent by email.
That one sentence covers most businesses. The detail sits at the edges, and much of it will only be settled by the implementation roadmap due at Budget 2026 on 28 October 2026. This guide separates what is confirmed from what is still open.
## What the government has actually said
Three official documents define the scope today:
- **Budget 2025 (26 November 2025):** "The government will require all VAT invoices to be issued in a specified electronic format from April 2029."
- **Consultation response (26 November 2025):** "VAT invoices are typically issued for business to business (B2B) and business to government (B2G) transactions where VAT is due (though not for business to customer transactions)." It also says requiring all VAT invoices "to be issued and received electronically" will drive the change.
- **Tax update 2026 (23 June 2026):** "The government has announced that the electronic procurement system Peppol will be the core interoperability network for e-invoicing in the UK."
Notice what the mandate is built around: the **VAT invoice**. It is not framed as "every business" or "every invoice". That makes VAT invoicing rules the best guide to who is affected.
## Who issues VAT invoices today
HMRC's [VAT guide (Notice 700)](https://www.gov.uk/guidance/vat-guide-notice-700) says that whenever you supply standard-rated or reduced-rated goods or services to another VAT-registered person, you must give them a [VAT invoice](https://einvoices.uk/news/uk-vat-invoice-requirements-e-invoicing). It also says:
- only VAT-registered businesses can issue VAT invoices
- you do not have to issue VAT invoices for supplies to customers who are not VAT-registered
- you do not have to issue VAT invoices for zero-rated supplies, and an invoice only for exempt or zero-rated UK sales is not required
- under self-billing, the customer issues the invoice instead of the supplier
So the mandate's natural core is clear. Whether invoices that are not strictly required as VAT invoices will also have to be e-invoices is one of the open questions.
## Scope at a glance
| Situation | Status today |
|---|---|
| VAT-registered business invoicing another VAT-registered business in the UK | **Confirmed in scope** (all VAT invoices from April 2029) |
| VAT-registered business invoicing a public-sector body | **Confirmed in scope** (B2G) |
| Receiving e-invoices from your suppliers | **Confirmed in principle**: the response says VAT invoices are to be "issued and received electronically" |
| Business that is not VAT-registered | **Not obliged**, according to the government, because it cannot issue VAT invoices |
| Sales to consumers, receipts, simplified invoices | **Not confirmed**: VAT invoices are not usually issued to consumers |
| Self-billed invoices | **Not confirmed**: HMRC has noted other countries' mandates handle self-billing |
| Zero-rated or exempt-only invoices | **Not confirmed** |
| Cross-border invoices to and from the UK | **Not confirmed** |
| Thresholds, phasing or later dates for small firms | **None announced** |
You can test your own situation with our [am I in scope tool](https://einvoices.uk/tools/am-i-in-scope).
## Size does not matter, registration does
No turnover threshold, sector exemption or phased start for small businesses has been announced. The test is VAT registration. The consultation response puts it this way: "As e-invoicing will be mandated for VAT invoices, many of the smallest businesses who are not required and choose not to be registered for VAT will not be obliged to adopt this technology."
The flip side is that a small business that has registered voluntarily is in the same position as a large one. A sole trader with a VAT number who invoices other businesses is in scope. See [e-invoicing for sole traders](https://einvoices.uk/news/e-invoicing-sole-traders-uk) and [e-invoicing for non-VAT-registered businesses](https://einvoices.uk/news/e-invoicing-non-vat-registered-businesses).
Some respondents asked for a turnover threshold. The government has not adopted one. It has said it will publish a roadmap and work with the software market to ensure low-cost products exist.
## Where in the UK?
UK VAT law covers England, Scotland, Wales and Northern Ireland, so the mandate is expected to apply across all four nations. Two places need extra care:
- **Northern Ireland:** UK VAT applies, but businesses trading goods with the EU under the Windsor Framework use an XI prefix. See [e-invoicing in Northern Ireland](https://einvoices.uk/news/e-invoicing-northern-ireland-xi-vat).
- **Isle of Man:** it shares the UK VAT area but has its own VAT law, administered by Isle of Man Customs and Excise. UK legislation does not automatically apply there. See [e-invoicing in the Isle of Man](https://einvoices.uk/news/e-invoicing-isle-of-man).
The **Channel Islands** are outside UK VAT altogether. See [Jersey, Guernsey and the mandate](https://einvoices.uk/news/e-invoicing-jersey-guernsey-channel-islands).
## Corporate structures
A [VAT group](https://einvoices.uk/news/e-invoicing-vat-groups) has one VAT registration, so its invoices to outside customers are VAT invoices and are in scope. Supplies between group members are normally disregarded for VAT and do not need VAT invoices.
## What does "e-invoice" mean here?
The consultation said invoices in "PDF or word formats, images such as JPEG, HTML invoices on a webpage or in an email, OCR or images sent via a fax machine" are not e-invoices for its purposes. Budget 2025 refers to "a specified electronic format". The exact UK specification has not been published. We explain the difference in [does a PDF invoice count as an e-invoice?](https://einvoices.uk/news/does-a-pdf-invoice-count-as-an-e-invoice)
## What is still open
The roadmap at Budget 2026 is expected to cover the technical standard, how the transition works and the rules at the edges. Until then, these are **not confirmed**:
- the treatment of retail receipts and simplified invoices
- self-billing, credit notes and other invoice-like documents
- cross-border supplies
- any exemptions for particular sectors or legacy systems (the government said it will keep engaging on legacy systems that cannot interoperate)
- [penalties](https://einvoices.uk/news/e-invoicing-penalties-uk) for non-compliance
Real-time reporting to HMRC will **not** be introduced in 2029, according to the consultation response.
## What to do now
1. **Check your VAT status.** If you are VAT-registered and sell to businesses or the public sector, plan on being in scope.
2. **Count your invoices.** Note how many VAT invoices you send and receive, and which systems produce them.
3. **Ask your software provider** what it plans for Peppol and e-invoicing.
4. **Note your edge cases**, such as self-billing, retail sales or cross-border work, so you can check them against the roadmap.
Follow the [timeline](https://einvoices.uk/timeline) and our [mandate guide](https://einvoices.uk/mandate) for updates after 28 October.
## Frequently asked questions
### Who needs to e-invoice in the UK from 2029?
The government says all VAT invoices must be issued as e-invoices from April 2029. VAT invoices are mainly issued by VAT-registered businesses to other businesses (B2B) and to the public sector (B2G), so they are the core group affected.
### Does the mandate cover sales to consumers?
The government's consultation response says VAT invoices are not typically issued for business-to-consumer sales. How receipts and simplified invoices will be treated has not yet been confirmed.
### Is there a turnover threshold or exemption for small businesses?
No threshold or exemption has been announced. Businesses that are not VAT-registered do not issue VAT invoices, so the government has said many of the smallest businesses will not be obliged to adopt e-invoicing.
### Does the mandate apply in Northern Ireland and the Isle of Man?
Northern Ireland is part of the UK, so UK VAT rules apply there. The Isle of Man has its own VAT law, which generally mirrors the UK's, but no Manx e-invoicing requirement had been announced as of 20 October 2026.
---
How to cite: "Who is in scope of the UK e-invoicing mandate in 2029?", einvoices.uk, 20 October 2026, https://einvoices.uk/news/who-is-in-scope-uk-e-invoicing-mandate
einvoices.uk is an independent publication and is not affiliated with HMRC or the UK Government. Nothing here is tax advice; check the sources and official GOV.UK guidance before acting.