The big talking point from this week's Budget has been the £100 help with energy bills. So many people rushed to check their council tax band that a government website briefly went down. For finance teams, one of the most practical announcements sits further down the list: the government's roadmap for mandatory e-invoicing.
It's less likely to make the front pages. It's more likely to change what your Monday mornings look like.
From 1 April 2029, VAT-registered businesses, including public sector bodies, will need to issue and receive VAT invoices as e-invoices. On 28 October, HMRC and the Department for Business and Trade published the roadmap showing how we'll get there.
The short version:
- The date holds. Everyone starts on 1 April 2029, with no phasing by business size, and Peppol is the network it all runs on.
- The final technical rules aren't here yet. The new roadmap sets out the plan, not the full detail.
- Standards go out for consultation in spring 2027.
- The main requirements land between October 2027 and April 2028. They'll cover business identifiers, what service providers are responsible for, and any UK-specific Peppol requirements.
Here's what was announced, and what it means for you.
How we got here
The 2029 mandate isn't new. The gap has been between the headline date and the detail, and the new roadmap starts to close it.
HMRC's 2026 Transformation Roadmap said legislation, standards and full guidance would follow between the end of 2027 and 2028. The new roadmap fills in the steps in between.
What the Budget announced
The roadmap confirms the April 2029 date and sets out each step to get there. There's no phasing by business size, so every VAT-registered business starts on the same day.
The key points for UK businesses:
- Start date: 1 April 2029, for all VAT-registered businesses and public sector bodies. You'll need to both issue and receive VAT invoices as e-invoices.
- What's out of scope: sales to consumers, sales to buyers who aren't VAT-registered, supplies that don't need a VAT invoice, and cross-border transactions. Businesses that aren't VAT-registered can take part voluntarily.
- Exemptions: expected to be tightly limited, mainly for businesses that are digitally excluded, using the same tests as Making Tax Digital for VAT.
- Network: Peppol is the core framework. E-invoices travel between certified Peppol access points, and most businesses will connect through their software provider rather than becoming an access point themselves.
- Standards: built on the international standards used within Peppol, with a possible UK-specific layer on top. HMRC will consult on them in spring 2027.
- EDI and existing systems: these can carry on alongside Peppol, as long as you can also send and receive e-invoices through it. Guidance is due in autumn 2027.
- Business identifiers: every e-invoicing user will need to register one. The approach will be decided between October 2027 and April 2028.
- Reporting to HMRC: there's no commitment to real-time reporting. HMRC says it will keep exploring digital reporting.
- Legislation: primary legislation goes into Finance Bill 2026 and is expected to become law in spring 2027. Secondary legislation may not be finished until autumn 2028 or early 2029.
- Penalties: these will build on the existing VAT invoicing penalties, with details to follow.
- Support for small businesses: help will come through GOV.UK and the Business Growth Service. Several software providers have committed to including e-invoicing at no extra cost. There's no dedicated funding.
Key dates on the road to 2029
Read the full roadmap on GOV.UK
What it means for your business
April 2029 can sound a long way off. It's a few year-ends away, and in finance time that's practically next week. E-invoicing also touches every invoice you send and receive, so the work starts well before the deadline.
The mandate is about the data behind an invoice, not the document it arrives in. An e-invoice is structured data, sent in an agreed format over an agreed network, so your systems can read it without anyone keying it in. If PDFs are part of how you work today, the trick is turning them into that structured data, and we can do that for you. Our guide to PDFs and e-invoices explains how.
That changes how invoices leave your ERP, how they arrive from suppliers, and how they're matched and approved.
The roadmap makes two things clearer. Everyone starts on the same day, so there's no first wave to learn from. And with the final rules landing by April 2028, the last year is for testing and onboarding, not reading guidance.
The upside is real too. Structured invoices mean fewer manual touchpoints, faster approvals and cleaner data for your finance team. Retyping invoice numbers from a PDF is unlikely to be missed.
What to do now
Minding the gap doesn't mean waiting for the final legislation. Four steps make sense today, and our e-invoicing readiness checklist goes into more detail:
- Map your invoice flows. List how invoices come in and go out, which systems they touch, and who handles them. HMRC also suggests bringing finance, tax, procurement and digital teams into the conversation early.
- Check your ERP. Find out whether it can send and receive structured invoices, or what it'll need to connect to Peppol.
- Talk to your key suppliers and customers. Ask how they're planning for 2029, so you're not working to different timelines.
- Choose a provider early. Software providers need to be accredited with the UK Peppol Authority by April 2029, and readiness testing starts in summer 2028. Choosing early gives you time to test before the rush.
Getting ready with Open ECX
We're an accredited Peppol access point, and we already connect 17,000+ businesses. Our platform plugs straight into your existing ERP. No disruption, no lengthy integration project. Set up in weeks, not months, so 2029 is one less thing to worry about.
Want to know what this week's announcement means for your invoices? Join our webinar on Tuesday 3 November at 11am, where we'll walk through the roadmap and what to do next. Our founder, Matthew Jones, will take you through the detail and answer your questions. Bring yours, and we'll bring the roadmap, decoded.
