UK Budget 2026: E-invoicing implementation roadmap

Mandatory e-invoicing will go ahead in the UK from 1 April 2029. The UK Government published the implementation roadmap as part of the Budget last week. We outline what’s happening, and when, and highlight our concern that some organisations may have insufficient time to prepare.

The UK Government announced in the 2025 Autumn Budget that mandatory e-invoicing will go ahead in the UK from 1 April 2029. On Tax Update Day in June 2026, the Government confirmed that Peppol will be the UK’s core interoperability network. 

By 1 April 2029, VAT registered businesses and organisations in the private and public sectors will need to be ready to receive and issue e-invoices. Any exemptions will be limited but will include the digitally excluded. 

The implementation roadmap

The roadmap for preparation and implementation was published in Budget 2026, including a challenging timetable:

• Budget 2026 to October 2027: Government will continue developing the detailed design of the regime and consult on technical standards.
• October 2027 to April 2028: Government will publish the key requirements organisations need to prepare, including scope, exclusions, standards, guidance, business identifiers and service-provider requirements.
• April 2028 to April 2029: Government communications campaign runs. Software providers, service providers, businesses and public bodies prepare for implementation, testing and onboarding.
• April 2029: VAT e-invoicing takes effect.

Our response to the roadmap

We welcome the publication of the roadmap. It’s important that businesses know when they will be able to start their preparations. However, we have serious concerns about a key feature of the timetable. 

Based on the feedback received for our response to the 2025 consultation on promoting e-invoicing in the UK, we believe that April 2028 is too late for publication of the requirements. It could mean that software developers can’t develop and release products in time for all organisations to implement them before April 2029. We understand that some businesses will need at least two years to implement e-invoicing.

The Government has announced that there will be a public technical consultation on the proposed UK e-invoicing standards in spring 2027. We also expect further engagement with stakeholders on the approach to communication and implementation. 

We welcome feedback from members on the timetable and any practical issues around implementation. Please email us at tax@icas.com with your comments. 

New e-invoicing digital reporting consultation

A consultation ‘E-invoicing digital reporting’ has also been published alongside the Budget. The Government “seeks views from businesses, agents, software providers and other stakeholders on the opportunities, risks, costs and safeguards associated with E-Invoicing Digital Reporting”. 

There are questions about how “the structured data created through e-invoicing” could be used to deliver benefits for businesses, HMRC and wider government. For example, by simplifying tax administration, helping businesses to get their tax right and improving services.

The Government also wants views on whether HMRC could receive invoice data in future to support tax administration and wider public services. This includes questions about costs and the impact on businesses and organisations (particularly smaller ones or those with complex or legacy systems).

We would welcome feedback from members on the proposals, to inform an ICAS response to the consultation.

Let us know what you think

We respond to tax consultations and calls for evidence and attend meetings with HMRC at which service levels, delays and other issues you raise with us are discussed. We welcome input from members to inform our work; email us to share your insights and feedback.