Editor, e-invoicing expert

Floris Lindenaar

Last updated 20 October 2026

Floris Lindenaar is an e-invoicing expert and the editor of einvoices.uk.

As editor, Floris is responsible for what einvoices.uk publishes and for its editorial policy, sourcing rules and corrections.

How we work: editorial policy · corrections. Contact: hello@einvoices.uk.

Profiles

Articles (77)

20 Oct 2026E-invoicing client letter template for UK accountantsGuide · 8 min
20 Oct 2026UK e-invoicing statistics: every figure, sourcedAnalysis · 6 min
20 Oct 2026Budget 2026: five things the e-invoicing roadmap must answerAnalysis · 2 min
20 Oct 2026HMRC research: only 29% of SMEs say they use e-invoicingAnalysis · 4 min
20 Oct 2026Peppol confirmed as the network for UK e-invoicingExplainer · 2 min
20 Oct 2026E-invoicing to be mandatory for UK VAT invoices from April 2029Explainer · 2 min
20 Oct 2026Accounts payable e-invoicing in the UK: a guide for AP teamsGuide · 5 min
20 Oct 2026Accounts receivable e-invoicing in the UK: send and get paidGuide · 5 min
20 Oct 2026Do retail receipts need to be e-invoices from 2029?Explainer · 4 min
20 Oct 2026Invoicing a government department: e-invoicing rulesGuide · 5 min
20 Oct 2026Does my accounting software support Peppol? How to checkGuide · 5 min
20 Oct 2026Common Peppol validation errors explained (with fixes)Guide · 7 min
20 Oct 2026E-invoice credit notes in the UK: how they work in PeppolGuide · 6 min
20 Oct 2026Clearance vs decentralised e-invoicing: which has the UK chosen?Explainer · 4 min
20 Oct 2026Does a PDF invoice count as an e-invoice? Not from 2029Explainer · 4 min
20 Oct 2026Reverse charge construction e-invoices in Peppol (AE code)Guide · 6 min
20 Oct 2026How long to keep e-invoices: HMRC retention and archiving rulesGuide · 5 min
20 Oct 2026UK Peppol invoice XML example (UBL, validated)Guide · 5 min
20 Oct 2026Farmers and e-invoicing: flat rate scheme, self-billing and 2029Guide · 5 min
20 Oct 2026Benefits of e-invoicing for UK businesses: what is realExplainer · 5 min
20 Oct 2026Charity e-invoicing: does the 2029 mandate apply to you?Guide · 5 min
20 Oct 2026Construction e-invoicing: CIS, reverse charge and 2029Guide · 6 min
20 Oct 2026How much does e-invoicing cost in the UK? What to budget forGuide · 5 min
20 Oct 2026ERP e-invoicing in the UK: SAP, Oracle, Dynamics, NetSuiteGuide · 5 min
20 Oct 2026UK e-invoicing FAQ: 20 questions answeredGuide · 5 min
20 Oct 2026E-invoicing guide for UK accountants and bookkeepersGuide · 5 min
20 Oct 2026Hospitality e-invoicing: hotels, events and the 2029 mandateGuide · 5 min
20 Oct 2026Isle of Man e-invoicing: does the UK 2029 mandate apply?Explainer · 5 min
20 Oct 2026Jersey, Guernsey and the UK e-invoicing mandateExplainer · 4 min
20 Oct 2026Haulage e-invoicing: freight, self-billing and the 2029 mandateGuide · 6 min
20 Oct 202612 UK e-invoicing myths, and what's actually trueExplainer · 4 min
20 Oct 2026E-invoicing if you're not VAT registered: what changes in 2029Guide · 5 min
20 Oct 2026Northern Ireland e-invoicing: XI VAT numbers and the 2029 mandateExplainer · 4 min
20 Oct 2026E-invoicing penalties in the UK: what HMRC could chargeAnalysis · 5 min
20 Oct 2026Law firm disbursements on e-invoices: 2029 guideGuide · 6 min
20 Oct 2026E-invoicing implementation plan for UK finance teamsGuide · 5 min
20 Oct 2026Landlords, option to tax and e-invoicing from 2029Guide · 5 min
20 Oct 2026Wholesale and retail e-invoicing in the UK: what 2029 meansGuide · 5 min
20 Oct 2026E-invoicing for small businesses in the UK: a plain guideGuide · 5 min
20 Oct 2026Do sole traders need e-invoicing? The 2029 rules explainedGuide · 5 min
20 Oct 2026E-invoicing and the UK VAT gap: what the numbers sayAnalysis · 5 min
20 Oct 2026VAT groups and e-invoicing: how the 2029 mandate appliesGuide · 5 min
20 Oct 2026E-invoicing vs EDI: what UK businesses need to knowExplainer · 5 min
20 Oct 2026E-invoicing vs Making Tax Digital: what's the difference?Explainer · 5 min
20 Oct 2026EN 16931 explained: the e-invoice standard behind PeppolExplainer · 5 min
20 Oct 2026The five-corner model explained: will the UK use it?Explainer · 4 min
20 Oct 2026The four-corner model of e-invoicing explainedExplainer · 5 min
20 Oct 2026A short history of e-invoicing in the UK, from EDI to 2029Explainer · 5 min
20 Oct 2026How to choose a Peppol Access Point in the UKGuide · 5 min
20 Oct 2026How to attach a PDF to a Peppol invoice (BG-24)Guide · 5 min
20 Oct 2026Invoicing a council electronically: a supplier's guideGuide · 5 min
20 Oct 2026Master data clean-up for e-invoicing: VAT numbers and moreGuide · 5 min
20 Oct 2026Foreign currency VAT invoices as e-invoices: showing VAT in GBPGuide · 5 min
20 Oct 2026NHS Peppol invoicing: what suppliers need to knowGuide · 6 min
20 Oct 2026Who is the UK Peppol Authority? Past, present and 2029Explainer · 4 min
20 Oct 2026Peppol BIS Billing 3.0: a guide for UK businessesGuide · 5 min
20 Oct 2026How to check if a UK company is on PeppolGuide · 5 min
20 Oct 2026Peppol scheme 9932 and 0088: EAS codes for UK businessesGuide · 5 min
20 Oct 2026Peppol ID Isle of Man: which identifier to useGuide · 4 min
20 Oct 2026Peppol ID Northern Ireland: GB or XI VAT number?Guide · 5 min
20 Oct 2026Peppol Invoice Response vs MLR and MLS explainedExplainer · 5 min
20 Oct 2026Peppol ID UK: how participant identifiers workGuide · 5 min
20 Oct 2026Peppol SMP and SML explained: how invoices find the buyerExplainer · 4 min
20 Oct 2026BR-CO-15 error: Invoice total amount with VAT explained and fixedGuide · 5 min
20 Oct 2026Public Procurement (Electronic Invoices etc.) Regulations 2019Explainer · 6 min
20 Oct 2026Buyer reference (BT-10) and PO number in Peppol invoicesGuide · 5 min
20 Oct 2026Will HMRC require real-time reporting of invoices?Analysis · 4 min
20 Oct 2026Self-billing and e-invoicing: what HMRC rules mean for 2029Guide · 4 min
20 Oct 2026How to onboard suppliers to e-invoicing in the UKGuide · 5 min
20 Oct 2026UBL vs CII: which e-invoice format should UK businesses use?Explainer · 4 min
20 Oct 2026Selling to EU customers: do UK businesses need e-invoices?Guide · 5 min
20 Oct 2026UK e-invoicing consultation response: summary of key pointsAnalysis · 5 min
20 Oct 2026UK e-invoicing readiness checklist for the 2029 mandateGuide · 6 min
20 Oct 2026UK VAT category codes in Peppol: S, Z, E, AE and O explainedGuide · 6 min
20 Oct 2026What must a VAT invoice include? HMRC rules mapped to e-invoicesGuide · 6 min
20 Oct 2026What is Peppol? A plain-English guide for UK businessesExplainer · 5 min
20 Oct 2026Who is in scope of the UK e-invoicing mandate in 2029?Explainer · 5 min