Invoicing the Irish Government via Peppol

Becoming a registered government supplier

Before you ever issue an invoice, most Irish public sector contracts are won through eTenders(etenders.gov.ie), the national procurement portal, or via a framework agreement managed by the Office of Government Procurement (OGP). Once you're an approved supplier — whether from a one-off tender award or a standing framework — the buying body will issue purchase orders against which you invoice.

Being Peppol-ready is a separate requirement from winning the contract: it's how you get paid. A public body can award you the work and still reject an invoice that isn't submitted in the correct structured format.

Why the mandate exists

Ireland's B2G e-invoicing mandate implements EU Directive 2014/55/EU, which requires public administrations across the EU to be able to receive and process electronic invoices in the EN 16931 standard. The goal is faster payment processing, fewer manual errors, and lower administrative cost on both sides — but in practice it means non-compliant invoices get bounced back or delayed rather than paid.

Which hub do you invoice?

Almost all Irish public bodies route their Peppol invoicing through one of four shared services hubs, depending on the sector:

• NSSO — central government departments and many state agencies
• HSE — health service bodies (see our dedicated HSE guide)
• LGMA — city and county councils
• ESBS — Education and Training Boards

If you're unsure which hub your contracting body uses, check the purchase order or ask your procurement contact directly — using the wrong Peppol identifier will cause your invoice to fail delivery.

For the full list of identifiers and a general walkthrough, see our complete Peppol invoice Ireland guide.

What you need on every invoice

• The purchase order or contract reference issued to you
• Your registered legal entity name (matching your VAT registration, not just a trading name)
• Correct VAT treatment per line item
• A buyer reference, if one was provided — many public bodies require this to route the invoice internally

Getting invoices out without an ERP system

You don't need SAP, Oracle, or a paid Peppol subscription to comply. PeppolInvoice.ie generates a fully compliant UBL 2.1 XML file and matching PDF from a simple web form — built specifically for suppliers who send too few invoices a month to justify an enterprise integration, but still need to meet the mandate.