On this page
The UK is following Pakistan, Saudi Arabia and the UAE in requiring electronic invoices. At Budget 2025 the government announced that VAT invoices must be issued as e-invoices from April 2029. With Budget 2026 on 28 October 2026, HMRC and the Department for Business and Trade published the implementation roadmap, and the Finance Bill 2026-27 will give HMRC the powers to set the detailed rules in regulations.
What counts as an e-invoice
An e-invoice is invoice data in a structured format, exchanged directly between the supplier's and the buyer's systems so that it can be processed automatically. The roadmap is clear that a PDF, a word-processed document, an image such as a JPEG, an HTML invoice on a web page or in an e-mail, and a faxed invoice do not count. The rules on when a VAT invoice must be issued, and what it must contain, do not change.
Who and what is in scope
| Situation | E-invoice? |
|---|---|
| Taxable supply between two VAT-registered persons where a VAT invoice is required | Required |
| Exempt, zero-rated or out-of-scope supplies, and businesses that are not VAT registered | Voluntary |
| Sales to consumers | Not required |
| Cross-border supplies, where no UK VAT invoice is required | Not required, but can be sent by agreement |
| Digitally excluded persons, under an exemption to be published | Not required |
The requirement covers VAT-registered companies, sole traders, partnerships, charities and public bodies. Overseas businesses registered for UK VAT, known as non-established taxable persons, follow the same rules as UK businesses, so a taxable supply they make within the UK to a VAT-registered customer will need an e-invoice.
Peppol: the network
The UK will adopt Peppol as its core framework for exchanging e-invoices. Peppol lets businesses using different software exchange invoices securely through certified Access Points, without a separate connection for each customer or supplier. HMRC will take on the role of UK Peppol Authority, which currently sits within Supply Chain Coordination Limited, the operator of NHS Supply Chain. Most businesses will connect through their accounting, ERP or e-invoicing software provider rather than directly.
The timeline
| When | What happens |
|---|---|
| Already decided | Mandatory e-invoicing for VAT invoices from April 2029, with Peppol as the network |
| Until 20 January 2027 | HMRC consultation on possible future digital reporting of e-invoice data is open |
| Spring 2027 | Public technical consultation on the UK e-invoicing standards |
| By the end of 2027 | Guidance for specific groups of VAT-registered persons |
| October 2027 to April 2028 | Requirements confirmed: scope, exemptions, standards, business identifiers and service-provider rules, with at least 12 months' notice |
| By April 2028 | Exemption process for the digitally excluded, taxpayer obligations and updated VAT guidance |
| April 2028 to April 2029 | Awareness campaign, software testing and onboarding |
| 1 April 2029 | Mandatory e-invoicing begins |
The government plans to base penalties on the existing VAT invoicing penalty framework, and says it aims to keep them proportionate.
How to prepare
- Map how you issue and receive invoices today, including any PDFs sent by e-mail
- Make sure your finance, tax, procurement and IT teams know about the April 2029 requirement
- Ask your accounting or ERP provider how and when it will support Peppol e-invoicing
- Plan for sending and receiving: suppliers' e-invoices will need to flow into your own system
- Consider responding to HMRC's digital reporting consultation before 20 January 2027
- Groups that also invoice in Pakistan, the UAE or Saudi Arabia: plan one approach to e-invoicing data across all your entities
Running e-invoicing elsewhere too? See our guides to FBR Digital Invoicing in Pakistan, UAE e-invoicing and Saudi Arabia's FATOORA, and our summary of UK Budget 2026.
Official sources
- HMRC and Department for Business and Trade — Roadmap for e-invoicing implementation, 28 October 2026
- HMRC — E-invoicing requirements (tax information and impact note), 28 October 2026
- HMRC — E-invoicing digital reporting consultation, closes 20 January 2027
- HM Treasury — Budget 2026, 28 October 2026
Frequently asked questions
When does e-invoicing become mandatory in the UK?
From 1 April 2029. VAT-registered persons, including public bodies, will have to issue VAT invoices to VAT-registered customers as e-invoices and be able to receive them, unless a specific exemption applies.
Is a PDF invoice an e-invoice under the UK rules?
No. The government's roadmap says formats such as PDF, word-processed documents, images, HTML invoices and faxes do not count. An e-invoice is structured data exchanged directly between the supplier's and buyer's systems.
Which network will the UK use for e-invoicing?
Peppol. Businesses will exchange e-invoices through certified Peppol Access Points, usually via their accounting or e-invoicing software provider, and HMRC will become the UK Peppol Authority.
This guide is general information based on the law as we understand it on the date shown, not advice for your situation. Tax rules change often — please speak to us before acting on it. See our disclaimer.