Home / Topics

Peppol

49 articles on Peppol and UK e-invoicing.

Last updated 20 October 2026

20 Oct 2026Budget 2026: five things the e-invoicing roadmap must answerHMRC 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.Analysis · 2 min
20 Oct 2026Peppol confirmed as the network for UK e-invoicingThe government has confirmed Peppol as the core interoperability network for the UK's 2029 e-invoicing mandate, using a decentralised, four-corner model.Explainer · 2 min
20 Oct 2026Accounts payable e-invoicing in the UK: a guide for AP teamsHow UK accounts payable teams should prepare to receive Peppol e-invoices by April 2029: intake, validation, matching, approvals, responses and archiving.Guide · 5 min
20 Oct 2026Accounts receivable e-invoicing in the UK: send and get paidHow UK accounts receivable teams should prepare to send Peppol e-invoices by April 2029: customer data, validation, rejections, credit notes and cash flow.Guide · 5 min
20 Oct 2026Invoicing a government department: e-invoicing rulesCentral government has had to accept EN 16931 e-invoices since April 2019. The rules for suppliers, defence exceptions, devolved rules and what 2029 adds.Guide · 5 min
20 Oct 2026Does my accounting software support Peppol? How to checkHow 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.Guide · 5 min
20 Oct 2026Common 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.Guide · 7 min
20 Oct 2026E-invoice credit notes in the UK: how they work in PeppolHow 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.Guide · 6 min
20 Oct 2026Clearance 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.Explainer · 4 min
20 Oct 2026Does a PDF invoice count as an e-invoice? Not from 2029HMRC accepts emailed PDFs as electronic invoices today, but the 2029 mandate needs structured, machine-readable data. A PDF alone will not be enough.Explainer · 4 min
20 Oct 2026UK 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.Guide · 5 min
20 Oct 2026ERP e-invoicing in the UK: SAP, Oracle, Dynamics, NetSuiteHow 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.Guide · 5 min
20 Oct 2026UK e-invoicing FAQ: 20 questions answeredShort, 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.Guide · 5 min
20 Oct 2026Isle 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.Explainer · 5 min
20 Oct 2026Jersey, Guernsey and the UK e-invoicing mandateThe 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.Explainer · 4 min
20 Oct 202612 UK e-invoicing myths, and what's actually trueNo, 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.Explainer · 4 min
20 Oct 2026Northern Ireland e-invoicing: XI VAT numbers and the 2029 mandateNorthern 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.Explainer · 4 min
20 Oct 2026E-invoicing implementation plan for UK finance teamsA phased e-invoicing implementation plan for UK finance teams preparing for April 2029: governance, workstreams, milestones, risks and a go-live checklist.Guide · 5 min
20 Oct 2026E-invoicing for small businesses in the UK: a plain guideWhat 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.Guide · 5 min
20 Oct 2026VAT groups and e-invoicing: how the 2029 mandate appliesA 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.Guide · 5 min
20 Oct 2026E-invoicing vs EDI: what UK businesses need to knowEDI 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.Explainer · 5 min
20 Oct 2026EN 16931 explained: the e-invoice standard behind PeppolEN 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.Explainer · 5 min
20 Oct 2026The 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.Explainer · 4 min
20 Oct 2026The four-corner model of e-invoicing explainedIn 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.Explainer · 5 min
20 Oct 2026A short history of e-invoicing in the UK, from EDI to 2029How UK e-invoicing got here: EDI, the NHS Peppol strategy, public procurement rules, Making Tax Digital, the 2025 consultation and the April 2029 mandate.Explainer · 5 min
20 Oct 2026How to choose a Peppol Access Point in the UKCheck 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.Guide · 5 min
20 Oct 2026How 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.Guide · 5 min
20 Oct 2026Invoicing a council electronically: a supplier's guideCouncils 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.Guide · 5 min
20 Oct 2026Master data clean-up for e-invoicing: VAT numbers and moreHow 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.Guide · 5 min
20 Oct 2026Foreign currency VAT invoices as e-invoices: showing VAT in GBPYou 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.Guide · 5 min
20 Oct 2026NHS Peppol invoicing: what suppliers need to knowMany NHS buyers in England already use Peppol. What applies to NHS suppliers today, and what changes when e-invoicing becomes mandatory in April 2029.Guide · 6 min
20 Oct 2026Who is the UK Peppol Authority? Past, present and 2029There 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.Explainer · 4 min
20 Oct 2026Peppol BIS Billing 3.0: a guide for UK businessesPeppol 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.Guide · 5 min
20 Oct 2026How to check if a UK company is on PeppolSearch 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.Guide · 5 min
20 Oct 2026Peppol scheme 9932 and 0088: EAS codes for UK businesses9932 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.Guide · 5 min
20 Oct 2026Peppol ID Isle of Man: which identifier to useThere 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.Guide · 4 min
20 Oct 2026Peppol 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.Guide · 5 min
20 Oct 2026Peppol Invoice Response vs MLR and MLS explainedMLR 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.Explainer · 5 min
20 Oct 2026Peppol ID UK: how participant identifiers workA 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.Guide · 5 min
20 Oct 2026Peppol SMP and SML explained: how invoices find the buyerThe 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.Explainer · 4 min
20 Oct 2026BR-CO-15 error: Invoice total amount with VAT explained and fixedBR-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.Guide · 5 min
20 Oct 2026Buyer reference (BT-10) and PO number in Peppol invoicesPeppol 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.Guide · 5 min
20 Oct 2026Self-billing and e-invoicing: what HMRC rules mean for 2029Self-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.Guide · 4 min
20 Oct 2026How to onboard suppliers to e-invoicing in the UKA step-by-step plan for onboarding UK suppliers to Peppol e-invoicing before April 2029: segmentation, communications, data collection, testing and follow-up.Guide · 5 min
20 Oct 2026UBL 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.Explainer · 4 min
20 Oct 2026Selling 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.Guide · 5 min
20 Oct 2026UK e-invoicing readiness checklist for the 2029 mandateA practical, step-by-step e-invoicing checklist for UK businesses preparing for the April 2029 mandate: scope, data, software, Peppol, suppliers and testing.Guide · 6 min
20 Oct 2026UK VAT category codes in Peppol: S, Z, E, AE and O explainedWhich Peppol VAT category code to use for UK standard, reduced, zero-rated, exempt, outside-scope and reverse charge supplies, and the rules each triggers.Guide · 6 min
20 Oct 2026What is Peppol? A plain-English guide for UK businessesPeppol 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.Explainer · 5 min