E-invoicing in Ireland from 2028: what small businesses need to know
By Oxus Technologies, makers of Invoicer. Updated 28 September 2026.
Ireland is moving to mandatory electronic invoicing between businesses. The largest companies go first in November 2028, businesses trading across EU borders follow in November 2029, and the EU-wide rules arrive in July 2030. Every business will need to be able to receive e-invoices from November 2028. This guide sets out the dates as Revenue has announced them, what an e-invoice actually is, and what a small business should do now.
What is changing
Today an Irish business can send an invoice as a PDF by email, and most do. That is going to change. In October 2025, alongside Budget 2026, Revenue published its plan for “VAT Modernisation”: mandatory electronic invoicing and real-time reporting between businesses, phased in from November 2028.
“E-invoicing” here has a precise meaning. It is not an emailed PDF. It is a structured data file, built to a European standard, that the customer’s software can read without anybody retyping it. Alongside it, key details of each invoice will be reported to Revenue close to real time.
Revenue has been clear that this changes how invoices are sent and reported, not the VAT itself. Rates, when VAT is due and how much you pay stay the same.
The timeline, as announced
These are the dates in Revenue’s published plan:
| From | Who | What |
|---|---|---|
| November 2028 | VAT-registered large corporates (businesses managed by Revenue’s Large Corporates Division) | Must issue e-invoices, with real-time reporting, for domestic business-to-business sales. |
| November 2028 | All businesses | Must be able to receive e-invoices from suppliers, even if they do not yet have to issue them. |
| November 2029 | All VAT-registered businesses that trade with businesses in other EU countries | The domestic e-invoicing and real-time reporting obligation extends to them. |
| 1 July 2030 | Every business trading business-to-business across EU borders | The EU’s VAT in the Digital Age (ViDA) rules: e-invoices and digital reporting for all cross-border EU B2B supplies, across every Member State. |
Revenue’s plan describes the 2029 phase as covering VAT-registered businesses engaged in cross-border EU trade. It has not yet set a date by which businesses that trade only within Ireland must issue e-invoices, but they will need to receive them from November 2028. These dates are as announced; Revenue has said it will publish detailed guidance and technical specifications before each phase, so check revenue.ie for the current position.
Why: the EU's VAT in the Digital Age package
The driver is ViDA, an EU package adopted in March 2025. From 1 July 2030 it requires e-invoicing and digital reporting for business-to-business supplies between Member States, and ties the 0% VAT treatment of intra-EU trade to it. Under ViDA an e-invoice for a cross-border supply is due within 10 days of the supply, and the data reported replaces the VIES return businesses file today.
Ireland is also using ViDA to bring in domestic e-invoicing, which the EU now allows Member States to do without special permission. Ireland was one of the few Member States not already moving in this direction.
EN 16931 and Peppol, in plain English
EN 16931 is the European standard for what an electronic invoice contains: which fields there are (seller, buyer, lines, VAT breakdown, totals) and what each one means. It is usually written in one of two XML formats, UBL or CII. ViDA requires e-invoices to follow it.
Peppol is the network that carries those files between businesses. You connect through a certified provider called an Access Point, a bit like an email provider for invoices. Ireland’s public sector has used Peppol for invoices since 2019, and Revenue has said the new system will build on it.
The practical point: a PDF will not count. Revenue’s plan says plainly that issuing PDF or scanned paper invoices will no longer satisfy the VAT rules once the mandate applies to you. You can still send a PDF as a courtesy copy, but the legal invoice will be the structured file.
What a small business should do now
Nothing here needs panic, and there is no need to buy anything expensive yet. But a few steps now make 2028 and 2029 easy:
- Stop making invoices in Word or Excel. A template cannot produce an EN 16931 file. Invoicing software that keeps your customers, lines and VAT as data can.
- Tidy your customer records. Correct legal names, addresses and VAT numbers, checked on VIES. An e-invoice with a wrong VAT number will be rejected in a way a PDF never was.
- Plan to receive e-invoices from November 2028. Your suppliers that are large corporates will start sending them. Ask your accountant or software provider how you will receive them.
- If you sell to businesses in other EU countries, note November 2029 and July 2030. You are in the second phase.
- Keep an eye on revenue.ie. The technical specifications and any changes to the dates will be published there first.
Where Invoicer stands
Every invoice and credit note in Invoicer can already be downloaded as a UBL 2.1 file following EN 16931 and the Peppol BIS Billing 3.0 specification, alongside the PDF. Your invoice data is structured from the start, which is the hard part of the move.
Invoicer does not yet send invoices over the Peppol network itself. That needs a certified Access Point. Until Invoicer connects to one, you can download the file for any invoice and hand it to a Peppol provider. See e-invoicing in Invoicer for what it does today, and the compliance page for the technical detail.
This guide explains the rules in plain English. It is not tax or legal advice, and the rules change. Check the current position on revenue.ie, and ask your accountant about anything specific to your business.
Invoicer does this for you. Irish VAT invoices with every required detail, numbered in sequence, emailed with a PDF and an EN 16931 e-invoice file, and kept on file. Start free or try the free invoice generator.