Ireland is rolling out a domestic eInvoicing regime, beginning with large corporates in November 2028 and expanding to all VAT‑registered businesses by July 2030. The initiative aligns with the EU’s ViDA framework and uses the EN 16931 standard for structured invoices, aiming to improve real‑time reporting and fraud prevention.

This whitepaper explains how aligning VAT returns with e‑invoicing data can improve accuracy, efficiency and control. It discusses the growing regulatory push for real‑time e‑invoicing, the challenges of reconciling fragmented data, and offers a framework for centralised reconciliation to deliver ROI.

From 1 July 2026 Hungary will tighten its M-sheet VAT reporting, requiring detailed breakdowns of VAT charged and deducted by rate, and mandating new data fields. The ÁNYK filing system will be phased out by 31 December 2026, with taxpayers moving to the eVAT platform, and M-sheets will be abolished entirely from 2027. These changes stem from the 2025 Autumn Tax Package and represent a shift toward real‑time, deduction‑based reporting.