Ireland sets out a Peppol-based five-corner model for e-invoicing and real-time VAT reporting

Ireland’s VAT Modernisation programme will use Peppol as the default network for exchanging structured e-invoices and as the required channel for reporting invoice data to Revenue. The phased rollout begins on 1 November 2028.

On 21 October 2026, Revenue published an update explaining how the proposed system is expected to work. The rollout dates announced in 2025 remain unchanged. The legislative provisions are still subject to the legislative process, and the supporting regulations are in draft form. Ireland’s programme is part of a wider shift in e-invoicing and digital VAT reporting requirements across Europe.

Peppol will support invoice exchange and VAT reporting

Under the proposed approach, suppliers and customers may agree to exchange invoices through another network or routing method. However, suppliers subject to digital reporting will still need to send the required invoice data to Revenue through a Peppol service provider.

Revenue describes a five-corner model. The supplier’s service provider checks and sends the structured invoice to the customer’s service provider. When the invoice is issued, it also reports a specified subset of invoice data to Revenue.

Invoices must comply with the European standard EN 16931-1. Revenue will publish detailed validation rules and reporting requirements in technical specifications.

For comparison, Belgium’s B2B e-invoicing framework also uses Peppol as the default channel and allows certain alternatives when both parties agree and the conditions are met. The Irish proposal has its own reporting requirements, so businesses should assess each country’s rules separately. Read more about Belgium’s B2B e-invoicing rules.

Ireland’s e-invoicing timeline

1 November 2028: Around 2,400 large VAT-registered businesses must begin domestic e-invoicing and real-time reporting. Phase One covers businesses established, or with a fixed establishment, in Ireland whose tax affairs are administered by Revenue’s Large Corporates Division on 1 January 2027.

1 November 2029: Domestic obligations extend to Irish-established VAT-registered businesses involved in intra-EU trade in goods or services, alongside additional businesses administered by the Large Corporates Division on 1 January 2028.

1 July 2030: The EU’s VAT in the Digital Age (ViDA) requirements apply to cross-border EU B2B transactions. For broader context on preparing for these changes, read our article on preparing for e-invoicing and e-reporting under ViDA.

From 1 November 2028, all businesses in Ireland, including public bodies, must be able to receive e-invoices, even if they are not required to issue them. For invoices within scope, customers will no longer be able to insist on receiving a PDF.

Business identifiers and Revenue’s Peppol role

Revenue plans to provide business identifiers during 2027. VAT-registered businesses will use their existing VAT numbers. Businesses without VAT registration will receive a separate identifier.

Revenue also intends to become Ireland’s designated Peppol Authority on 1 January 2027, taking over from the Office of Government Procurement.

What businesses can prepare

Revenue advises affected issuers to map invoice flows, review customer and supplier data, and discuss readiness with their accounting and ERP providers. Businesses can begin planning, but should wait for the final regulations and technical specifications before committing to final system builds.

Businesses whose only obligation is to receive e-invoices do not need to take immediate action, according to Revenue. Further guidance is available through the Revenue eInvoicing Hub.

The programme introduces transaction-level reporting, but periodic VAT returns will remain. VAT rates, payment obligations and the calculation of VAT liability are unchanged.

Changes companies need to implement

Businesses preparing for the Irish rollout should identify which phase may apply and review the invoice flows connected to their Irish entities. Their preparation should include:

• Mapping domestic and cross-border invoice flows.
• Reviewing customer and supplier data, including business identifiers.
• Checking how ERP and finance systems handle structured invoices and reporting data.
• Discussing readiness with accounting and ERP providers.
• Keeping final system decisions open until the regulations and technical specifications are confirmed.

Key takeaways

• Peppol will be the default network for e-invoice exchange and the required channel for reporting invoice data to Revenue.
• The first domestic obligations begin on 1 November 2028.
• All businesses in Ireland must be able to receive e-invoices from that date.
• The regulations and technical specifications are still being finalised.
• Periodic VAT returns will remain, and VAT rates and payment obligations are unchanged.

Learn how Dynatos e-invoicing solutions support structured invoice exchange, validation and routing, or contact Dynatos to discuss your requirements.