The UAE Ministry of Finance has launched a Peppol-based e-invoicing test, with a phased mandate starting in 2027. The rollout includes mandatory ASP appointments for large taxpayers from October 2026, with subsequent waves for smaller businesses and B2G compliance by October 2027. Intra-group e-invoicing will become mandatory in January 2029.

The EU's ViDA package introduces a comprehensive overhaul of the VAT framework, affecting UK exporters trading with EU customers. Key milestones include mandatory e-invoicing from 14 April 2025, OSS clarifications on 1 January 2027, and real-time reporting from 1 July 2030.

This guide explains the UK VAT invoice requirements for 2026, detailing the 14 mandatory fields for full invoices, the simplified format for supplies up to £250, and the 30‑day issuance deadline. It also covers retention rules, the £250 threshold, and how invoice rules change for cross‑border sales to the EU, UAE, and Saudi Arabia.