Published: 29 June 2026
The United Kingdom is gradually moving toward a more structured digital tax and invoicing environment. Although e-invoicing is not yet mandatory for all B2B transactions, the country already has several digital compliance initiatives in place. These include Making Tax Digital for VAT and Income Tax, as well as existing e-invoicing practices in certain public sector areas. In particular, NHS Supply Chain suppliers are already required to use Peppol for electronic invoicing, showing that the network is not entirely new to the UK market.
Looking ahead, the UK government has confirmed that mandatory e-invoicing will apply to all VAT invoices from 2029, making this one of the key developments in the country’s wider tax digitalisation agenda.
As part of the “Tax Update 2026: Simplification, Modernisation and Fairness” policy paper published on 23 June 2026, the government announced that Peppol will serve as the core interoperability network for the UK’s future e-invoicing framework. This announcement gives software developers, taxpayers, service providers and businesses a clearer indication of the direction of travel before the 2029 mandate comes into force.
By confirming Peppol as the main interoperability layer, the government enables stakeholders to begin assessing system readiness, planning product development and preparing e-invoicing rollout strategies in advance. The government also stated that it will continue to engage with stakeholders on the role of legacy systems that may not be able to interoperate within the future framework.
