Documentation on United Kingdom

UK e-invoicing explained — the government announced at Budget 2025 that all VAT invoices for B2B and B2G transactions will be required to be e-invoices from April 2029, on a decentralised model with Peppol as the core network and no real-time reporting at launch. What applies today (VAT Notice 700/63, Procurement Act 2023 s.67, NHS Peppol), what HMRC has not yet decided, and the Budget 2026 roadmap.

How to verify a UK VAT number using the HMRC check-VAT-number service. Covers UK VAT format, registration threshold, post-Brexit changes, Making Tax Digital, and the HMRC API.

Learn about the VAT rules and guidelines in United Kingdom for businesses with our comprehensive country guide. From registration to filing returns, our article covers everything you need to know to stay compliant with UK tax laws.

Learn about VAT number in United Kingdom. Use Lookuptax for hassle-free tax id validation in United Kingdom and other 100+ countries