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E-invoicing 2029: what UK finance teams need to do now

From April 2029, every VAT invoice in the UK will have to be an e-invoice. A PDF doesn’t count. Here’s what’s been decided, what hasn’t, and seven things you can do now.

Inside, you’ll learn:

What counts as an e-invoice, and why a PDF doesn’t
What the Budget roadmap confirmed, and what’s still open
Seven practical steps, from cleaning supplier data to fixing approvals

4 pages · UK edition

What’s inside

Four short sections, written for finance teams

01A PDF isn’t an e-invoice. The government’s definition, and what doesn’t count.
02What’s decided, and what isn’t. Dates, scope and what’s still open.
03Seven things to do now. From knowing your invoice mix to naming an owner.
04How invoices arrive vs how they’re approved. E-invoicing changes delivery, not your process.

Contents

1. A PDF isn’t an e-invoice
2. What’s decided, and what isn’t
3. Seven things to do now
4. How invoices arrive vs how they’re approved

1. A PDF isn’t an e-invoice

This is the part that catches people out. If you email PDF invoices, you’re not e-invoicing yet. Under the government’s definition, an e-invoice is invoice data exchanged directly between the buyer’s and supplier’s financial systems.

And it covers both directions: the invoices you send and the invoices you receive.

These don’t count

PDFs and Word documents
Scanned images and photos
Invoices in the body of an email or on a web page
Paper and fax

2. What’s decided, and what isn’t

Decided	Detail
Start date	1 April 2029
Scope	All VAT invoices, which covers most business-to-business and business-to-government sales
Smaller businesses	Businesses that aren’t VAT-registered won’t have to adopt it
Model	Decentralised, on the Peppol network: invoices travel between businesses’ own systems
Implementation roadmap	Published at Budget 2026, on 28 October 2026
Digital reporting	Not part of the 2029 mandate. No decision has been taken. A consultation on whether e-invoice data could be reported to HMRC closes on 20 January 2027

Not decided yet	When to expect it
UK data standard	Technical consultation due spring 2027, building on Peppol
Software provider requirements	Due spring 2028
Final guidance, obligations and exemptions	By April 2028, a year before the mandate starts

3. Seven things to do now

Two and a half years sounds like plenty of time. But the decisions that shape your project, such as which systems you use, how clean your supplier data is and how invoices get approved, are ones you can make now.

Know your invoice mix. How many VAT invoices do you send and receive each month, and in what formats? Which suppliers still post paper?
Ask your ERP or accounting provider about their plans. Find out when they’ll support e-invoicing over Peppol and what it will cost.
Clean your supplier and customer data. VAT numbers, legal names, addresses and bank details. E-invoicing relies on the data matching on both sides.
Get your process digital now. If invoices still arrive by email and get keyed in by hand, fix that first. Suppliers who aren’t VAT-registered will keep sending PDFs after 2029 anyway.
Fix approvals and matching. E-invoices arrive faster. If approval still runs on “OK to pay?” emails, the bottleneck just moves.
Name an owner. Someone in finance who tracks the roadmap and talks to IT and your providers.
Track the roadmap dates. The roadmap is out. Watch for the technical consultation on UK standards in spring 2027, and final rules and guidance by April 2028.

4. How invoices arrive vs how they’re approved

E-invoicing changes how invoices arrive. It doesn’t approve them, match them to an order or code them to the right budget. That’s still your process, and it’s where most of the time goes.

This guide is for general information and isn’t tax advice. For the latest position, see GOV.UK.

Sources

HM Treasury and HMRC, Roadmap for E-Invoicing Implementation, published 28 October 2026. GOV.UK.
HM Treasury and HMRC, Promoting electronic invoicing across UK businesses and the public sector: consultation response, published 26 November 2025. GOV.UK.
HM Treasury and HMRC, Tax Update 2026: simplification, modernisation and fairness, published 23 June 2026. GOV.UK.
HM Treasury and HMRC, consultation on digital reporting alongside e-invoicing, launched 28 October 2026 and closing 20 January 2027. GOV.UK.

With Webexpenses Accounts Payable, invoices are read as they arrive, matched to order and receipt, routed through the approval rules you set and written back to your ERP.

Written for the people who sign it off and the people who make it work

For the decision-maker

CFO, Finance Director

What’s been decided, what’s still open, and why the decisions that shape your project can be made now.

For the team doing the work

Financial Controllers and heads of AP

Seven practical steps, from knowing your invoice mix and cleaning supplier data to fixing approvals.

Want to see it on your own process?

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