The UK Government has published its plan for mandatory e-invoicing from April 2029. This is what’s been decided, what’s still open, and what large organisations can start on now.
On 28 October, the UK Government published its e-invoicing roadmap on GOV.UK. It sets out the plan to make e-invoicing mandatory for VAT invoices from April 2029, along with how the system will work and the consultations and guidance still to come before then.
From 1 April 2029, VAT-registered businesses and public sector bodies will need to be able to send and receive VAT invoices as e-invoices over the Peppol network. A lot of the detail won’t be final until late 2027 or early 2028, though, so organisations with complex invoicing or a large supplier base shouldn’t expect much time between the final rules and go-live.
What the UK E-Invoicing Mandate Requires
The rules on when you need a VAT invoice, and what it has to include, aren’t changing. The format is. From April 2029, invoices between VAT-registered businesses need to be sent as structured data that systems can read automatically.
PDFs, Word documents, images, HTML invoices, emailed invoices and faxes don’t count as e-invoices. For many UK businesses, a PDF attached to an email is still the normal way to invoice, so this is where most of the change will be felt.
Who Is in Scope, and Who Isn’t
The mandate covers domestic sales between VAT-registered businesses where a VAT invoice is needed. That includes both B2B and B2G. Overseas businesses registered for UK VAT follow the same rules as UK-based ones.
B2C sales are out of scope, as are businesses that aren’t VAT-registered, although they can choose to use e-invoicing. Cross-border transactions are also excluded because they don’t need a VAT invoice, but businesses can still exchange e-invoices with overseas customers if both sides agree.
HMRC is working on an exemption for businesses that are digitally excluded, based on the existing Making Tax Digital (MTD) for VAT criteria. Details of how to apply are due by April 2028. The roadmap says exemptions will be “tightly defined and limited”, so most VAT-registered organisations should assume they’ll be in scope.
How the UK Peppol Model Works
The UK has chosen Peppol as its core framework. Businesses will send and receive e-invoices through certified Peppol Access Points, usually provided by their software provider.
The UK isn’t following the clearance approach used in France or Poland. Invoices go directly between trading partners over the network, and the Peppol Authority won’t receive copies of VAT invoices for business transactions.
The UK Peppol Authority currently sits within NHS Supply Chain. HMRC will take over the role, but the timing hasn’t been set. HMRC is also still deciding whether the UK needs its own Peppol Authority Specific Requirements (PASRs). Areas under discussion include business identifiers, security, reporting on network activity, service levels, local interoperability and provider accreditation.
Software providers will have obligations too, including those that don’t run a Peppol Access Point. All providers working in the UK regime are expected to have finished any required accreditation with the UK Peppol Authority by 1 April 2029. If your provider isn’t ready, neither are you.
At Budget 2026, HMRC also opened a consultation on whether e-invoice data could be used for digital reporting. The roadmap is clear that this is exploratory and no decisions have been made. For now the mandate is about exchanging invoices, not reporting them to HMRC, but a reporting requirement could follow later.
Comparing Peppol with other e-invoicing networks? Read our DBNAlliance vs Peppol breakdown.
What Happens to EDI
Many large UK organisations, especially in retail, manufacturing and logistics, already use EDI with their high-volume trading partners. The roadmap says they can keep doing so, but they’ll also need to be able to exchange e-invoices through the new framework. More guidance on EDI is due in Autumn 2027.
So most of these organisations will end up running two channels: EDI where it already works, and Peppol for everything else. That’s much easier to manage from one platform than through separate processes.
What’s Still Undecided
Business identifiers are the biggest open question. Every e-invoicing user will have to register one as part of their Peppol identity, but there’s no single UK identifier that covers every type of organisation. A decision is expected between October 2027 and April 2028.
Penalties will build on the existing VAT invoicing penalties framework, with taxpayer obligations set out by April 2028. PASRs and provider accreditation will go to public technical consultation in Spring 2027. The government says it doesn’t plan to change requirements after April 2028 unless feedback makes it necessary, so the 2027 consultations are the best chance to influence the final design.
UK E-Invoicing Timeline: Key Dates to April 2029
| Date | Milestone |
| Spring 2027 | Public technical consultations on UK e-invoicing standards and Access Point certification. Primary legislation expected to become law via Finance Bill 2026. |
| Autumn 2027 | EDI guidance published |
| End of 2027 | Guidance for specific populations |
| October 2027 to April 2028 | Final requirements published, covering scope, exemptions, standards, business identifiers and provider requirements |
| Spring 2028 | Software provider management requirements |
| By April 2028 | Updated VAT guidance, digital exclusion exemption process and taxpayer obligations |
| Summer 2028 | Readiness testing with software providers |
| Winter 2028 | Infrastructure and governance operational |
| Autumn 2028 to early 2029 | Secondary legislation may be concluded |
| 1 April 2029 | E-invoicing mandate takes effect |
Source: HMRC and Department for Business and Trade, “Roadmap for e-invoicing implementation” (28 October 2026)
On paper, there’s plenty of time. In practice, if the final requirements arrive in early 2028 and readiness testing starts that summer, large organisations will have around 12 to 15 months to configure systems, test and onboard trading partners, and secondary legislation may still be in progress a few months before go-live. Waiting for every detail to be confirmed before starting isn’t a realistic option.
SMEs and Large Organisations
The government expects most SMEs to get e-invoicing through the accounting or MTD software they already use, often at no extra cost. Larger organisations may prefer solutions built into their ERP, supply chain and accounting systems. The roadmap acknowledges that this can be more complex and more expensive to set up, but also that it can bring significant efficiency savings.
The roadmap also points to benefits beyond compliance. Structured data makes it possible to run automatic checks that help prevent fraud, such as comparing the bank details on an invoice with the ones a supplier has used before. And with late payments costing the UK economy £11 billion a year, getting invoices processed and paid faster matters.
What the NHS Shows About E-Invoicing in Practice
When the roadmap makes the case for e-invoicing, it uses the NHS as its example. NHS Shared Business Services (NHS SBS) reports that e-invoices are paid 26 days faster on average than paper or email invoices, based on its 2023 data.
NHS SBS runs its e-invoicing programme in partnership with Tradeshift. Smaller suppliers send invoices through the Tradeshift portal, and larger suppliers connect their own invoicing systems. We’ve seen first-hand what the shift to e-invoicing does for payment times, and the government is now using those results to make the case for the national mandate.
Want the full picture on late payments and e-invoicing in the UK? Read our UK platform strategy article.
How Large Organisations Can Prepare Now
A lot of the detail won’t be final until 2028, but most of the preparation doesn’t depend on it.
Map your invoice flows. Look at how you send and receive invoices today, by volume and channel: Peppol, EDI, portals, emailed PDFs and paper. That tells you how much needs to change and where.
Decide what happens to EDI. Work out which EDI relationships stay as they are and where you’ll need to add Peppol, so you’re ready when the Autumn 2027 guidance comes out.
Clean up your master data. VAT numbers, company identifiers and supplier bank details matter more once invoices are exchanged as structured data. Fixing them early means fewer rejected invoices later.
Take part in the Spring 2027 consultations. This is the main chance to make sure the UK requirements work for the way large organisations actually trade.
Check your provider. Ask whether they’re already a certified Peppol Access Point, how they plan to meet UK accreditation, and whether they can handle Peppol and EDI together.
How Tradeshift Supports UK E-Invoicing Compliance
In the UK, we already work with NHS SBS to deliver e-invoicing for NHS suppliers. More broadly, Tradeshift has been a certified Peppol Access Point since 2014 and supports e-invoicing compliance in more than 70 countries. The same platform handles accounts payable and accounts receivable automation and integrates with your ERP, so you don’t need a separate compliance tool on top.
Our compliance and product teams are following each stage of the UK roadmap, from the Spring 2027 consultations to the final PASRs and accreditation rules, and we’ll keep customers updated as the details are confirmed.
Talk to Tradeshift About UK E-Invoicing Compliance
Preparing for the UK’s 2029 e-invoicing mandate? Let’s talk.