Ireland Reconfirms Timeline and Scope for 2028 B2B E-Invoicing Mandate

On February 10, 2026, the Irish Revenue confirmed the taxpayer criteria for the first phase of its mandatory electronic invoicing and reporting regime. This initiative, part of Ireland’s broader VAT Modernisation program, introduces real-time tax reporting and aligns domestic regulations with the EU’s VAT in the Digital Age (ViDA) framework.

Implementation Timeline and Phased Rollout

The Revenue has reaffirmed a structured, phased timeline for the launch of e-invoicing and e-reporting mandate:

• November 1, 2028: Large corporates must begin issuing structured e-invoices and reporting a specified subset of transaction data to the Revenue for all domestic B2B transactions. Additionally, all businesses in Ireland must be technically capable of receiving structured e-invoices.
• November 2029: The obligation to issue domestic B2B e-invoices will be extended to all remaining VAT-registered businesses engaged in intra-community supplies.
• July 2030: Full implementation of the EU ViDA e-reporting and e-invoicing requirements for cross-border intra-community B2B transactions.

Operational Requirements and Scope of Phase One

The first phase of the mandate specifically targets major enterprises. According to the Revenue’s newly published guidelines, a business is classified as a large corporate and falls under the regulation if it meets both of the following conditions:

• It is a VAT-registered entity whose tax affairs are managed by the Revenue’s Large Corporates Division.
• It is established or maintains a fixed establishment within Ireland.

The tax authority has indicated that it will formally notify affected businesses in writing over the coming weeks to confirm their inclusion in this initial rollout.

To comply with new regulations, businesses must shift away from unstructured formats such as PDFs and scanned documents, as these will no longer meet regulatory requirements. Instead, they must use structured XML files aligned with European Standard EN 16931.

Invoices will be exchanged via the Peppol network using a 5-corner model for decentralized document transmission. This framework introduces continuous transaction controls (CTC), supplementing traditional periodic VAT returns with automated, transaction-level reporting.

Background and Strategic Context

Building on the 2019 B2G e-invoicing mandate and a recent public consultation, the VAT Modernisation program is designed to simplify tax reporting and combat fraud. By shifting to real-time data submission, the government aims to close the national VAT Gap, recently estimated by the European Commission at €1.7 billion (10.1% of expected VAT revenues). During its review, the Revenue evaluated several frameworks – including SAF-T and pre-filled VAT returns – before advancing with the current CTC e-invoicing model.

Next Steps for Businesses

The Revenue, the Office of Government Procurement, and the Irish Peppol Authority are actively finalizing legislative and network requirements. With the Phase One deadline set, in-scope businesses should immediately assess their e-invoicing capabilities, evaluate ERP technical readiness, and plan necessary process changes. Inquiries regarding the rollout can be directed to the official support channel at vatmodernisation@revenue.ie.

There’s more you should know about global e-invoicing changes – learn more about the new and upcoming regulations.