EU E-Invoicing Mandates: Lessons for Ireland from Italy to Poland

staxo team, 2026-09-30

EU e-invoicing mandates have spread from one pioneer in 2019 to at least ten Member States, Ireland included, that are live or scheduled by the end of 2028. Italy has required structured e-invoices between businesses since 1 January 2019, Belgium and Poland switched on in 2026, France went live on 1 September 2026 and Germany's issuing phase starts on 1 January 2027. Ireland joins on 1 November 2028, when large corporates start issuing eInvoices and every business must be able to receive them, as confirmed in Revenue's press release Revenue confirms large corporates for Phase One of VAT Modernisation of 10 February 2026.

Arriving late has one real advantage. The countries ahead have already tested the choices Revenue still has to make: who goes first, how long smaller firms get and whether fines wait for a grace period.

If you only trade in Ireland, the short answer is this: be able to receive e-invoices before 1 November 2028, and watch Revenue for the date you will have to issue them. The five rollouts below show how such dates have been set elsewhere.

Where Ireland stands among EU e-invoicing mandates

In VAT Modernisation: Implementation of eInvoicing in Ireland, its plan of 8 October 2025, Revenue described Ireland as one of very few Member States not yet operating or rolling out mandatory eInvoicing. That holds for trade between businesses. Central government bodies have had to accept EN 16931 eInvoices since 18 April 2019, according to the European Commission's page eInvoicing in Ireland, although suppliers can still choose whether to send them.

The Irish B2B plan runs in three phases, set out in Revenue's VAT Modernisation Timeline, updated on 20 July 2026:

• Phase 1, from 1 November 2028: large corporates issue eInvoices for domestic B2B sales and report a subset of the data to Revenue; every business must be able to receive them.
• Phase 2, November 2029: VAT-registered businesses in cross-border EU B2B trade that use the 0% VAT arrangements join.
• Phase 3, July 2030: the full EU rules for cross-border B2B trade apply everywhere.

A large corporate means a business whose tax affairs are managed by Revenue's Large Corporates Division, as explained on Revenue's page Large corporates for Phase One of VAT modernisation. The same page defines an eInvoice as a structured invoice compliant with EN 16931, so a PDF or a scan does not count. For businesses that trade only within Ireland, no issuing date had been announced as of 29 September 2026, according to Revenue's page What is VAT Modernisation?.

So many countries are moving together because of the EU's VAT in the Digital Age package, which entered into force on 14 April 2025, according to the European Commission's page VAT in the Digital Age (ViDA). Since then a Member State can introduce domestic e-invoicing without first seeking an EU derogation, as Accountancy Europe's VAT in the Digital Age factsheet explains. Our plain-English guide to ViDA for Irish businesses covers the package in full.

Beyond the five countries covered below, Romania has run B2B e-invoicing since 1 January 2024, according to DLA Piper's alert Romania: e-invoicing mandatory from 1 January 2024 for all B2B transactions, and Croatia since 1 January 2026, per the European Commission's page eInvoicing in Croatia. Slovakia starts on 1 January 2027 over Peppol, as KPMG reports in Slovakia: VAT e-invoicing implementation begins January 1, 2027, and Latvia on 1 January 2028, per the Commission's page eInvoicing in Latvia. Spain approved a Royal Decree on 24 March 2026, and its start dates appear to depend on a later ministerial order, according to Vertex's Spain e-invoicing mandate: Crea y Crece compliance guide.

Italy: the first mover since 2019

Italy made e-invoicing mandatory for VAT-registered businesses on 1 January 2019, for sales to businesses and consumers, with every invoice passing through the state exchange system, the Sistema di Interscambio (SdI). Flat-rate taxpayers were brought in from 1 January 2024, and Italy's EU authorisation runs to 31 December 2027, according to the European Commission's page eInvoicing in Italy.

The results explain why others followed. The European Commission's VAT gap in the EU, 2024 report says new reporting and e-invoicing rules had a significant positive impact on VAT compliance, and that Italy's gap fell sharply from 2018 to 2022, to 10.6%. Ireland starts from a different place: its 2022 gap was 1.6%, about €302 million, against an EU average of 7.0%, according to Revenue's report VAT Payments and Returns 2024.

Pre-filled VAT drafts from 2021

Once Italy's tax agency held every invoice, it gave the data back. For transactions from 1 July 2021, the Agenzia delle Entrate offered draft VAT registers and periodic settlement drafts to about 2 million taxpayers, as it announced in Comunicato stampa 8 luglio 2021: precompilata IVA.

Some Irish respondents asked for the same, suggesting VAT3 returns could be fully or partly pre-filled, according to Revenue's Modernising Ireland's Administration of VAT: Report on the initial Public Consultation process, Key Findings of 27 June 2024. As far as we can find on Revenue's ViDA and VAT modernisation hub, Revenue has not announced a pre-filled VAT3. Our article on real-time VAT reporting and the pre-filled VAT3 tracks this.

France: receive first, issue by size

From 1 September 2026 every VAT-liable company in France must be able to receive e-invoices, and large and mid-sized companies must issue them. Small and micro-enterprises issue from 1 September 2027. Invoices pass through approved platforms in UBL, CII or hybrid formats, as set out in the French tax administration's guide I want to understand electronic invoicing.

A small firm cannot be told to send e-invoices to customers with no way to open them, so receiving is switched on for everyone first. Ireland uses the same idea: from 1 November 2028 all businesses must receive eInvoices, while only large corporates must issue them.

Belgium: Peppol from 1 January 2026, fines after a tolerance period

Belgium made structured B2B e-invoicing between Belgian VAT-liable businesses mandatory from 1 January 2026, with no general postponement. The Federal Public Service Finance allowed a tolerance period for the first three months of 2026, only for businesses that had taken timely and reasonable steps, as it announced in Period of tolerance during the first three months of 2026.

Fixed fines now apply to a business lacking the means to issue or receive e-invoices: €1,500 for a first infringement, €3,000 for a second and €5,000 after that. Peppol BIS in UBL is the favoured standard, according to Loyens & Loeff's note E-invoicing in Belgium as from 1 January 2026: key provisions of the Royal Decree, which also expects near real-time reporting to follow, probably in 2028.

Belgium is the closest model to Ireland: Revenue says the Irish system will use existing infrastructure including Peppol, working with the Office of Government Procurement as Ireland's Peppol authority. Ireland already has a fixed €4,000 penalty for breaching invoicing and accounting obligations, according to the European Commission's summary of Ireland VAT rules. We have seen no eInvoicing-specific penalties from Revenue so far, and it says legislative changes are being prepared.

Poland: a national platform, KSeF, in 2026

Poland built its own platform, the Krajowy System e-Faktur (KSeF), and staged the start by size. Taxpayers with 2024 sales above PLN 200 million joined on 1 February 2026, all others on 1 April 2026, and micro-entrepreneurs with monthly sales up to PLN 10,000 follow on 1 January 2027, according to EY's alert Poland signs into law mandatory national e-invoicing system.

Poland also appears to have given room on mistakes: Sovos, in KSeF: a timeline of Poland's e-invoicing mandate, reports that penalties for KSeF errors were deferred until the end of 2026. For an owner, a central platform and a Peppol network feel much the same: software sends the invoice, and the plumbing stays out of sight. Revenue has yet to publish its technical specifications and says it will do so well ahead of each phase.

Germany: receive from 2025, issue from 2027

Since 1 January 2025 every German business must be able to receive EN 16931 e-invoices, and an email address can be enough. Businesses with turnover above €800,000 issue from 1 January 2027 and all businesses from 1 January 2028, using formats such as XRechnung, ZUGFeRD and Peppol BIS, according to the European Commission's page eInvoicing in Germany.

Germany shows receiving can be kept light, and it gave small firms the longest run-in of the five. Revenue says it is exploring options to make receiving as straightforward as possible, with guidance promised before Phase 1.

How the five rollouts compare

Five lessons for Irish businesses

1. Receiving comes first, and it covers everyone. France, Germany and Ireland all switch on receiving before small firms must issue. A Cork electrician buying cable from a large wholesaler could get his first eInvoice on 1 November 2028, even though he sells only to local builders and households.
2. Size decides who issues first. France splits by company size, Poland by sales, Germany by turnover and Ireland by Large Corporates Division status. A Galway café with a handful of staff sits well outside Phase 1 and has no Irish issuing date yet.
3. Grace periods are short and conditional. Belgium gave three months, only to businesses that had acted in time. Plan to be ready on the day and treat any leniency as a bonus.
4. The data comes back to you. Italy turned invoice data into draft VAT registers from 2021. Revenue says real-time data will speed up repayments and mean fewer compliance interventions for compliant businesses.
5. The standard is converging. ViDA makes EN 16931 the default for cross-border B2B invoices from 1 July 2030, and Peppol is the network in Belgium and Slovakia and part of Revenue's plan for Ireland. Software that handles both covers most of what an Irish firm will meet.

None of this changes what you pay. Revenue states that tax rates, payment requirements and liability calculations stay as they are.

What this means if you sell to customers in these countries

Each national mandate covers its own domestic trade: Belgium's applies between Belgian VAT-liable businesses, Romania's between Romanian-established taxable persons. What changes for an Irish seller now is the customer, who runs an e-invoicing system and may prefer structured invoices. Under current Irish rules, electronic invoicing needs the agreement of both parties, as explained in Revenue's guidance Other types of VAT invoices: electronic invoicing.

From 1 July 2030, e-invoicing becomes the default for intra-EU B2B invoices and the customer can no longer refuse one. Invoices for intra-EU supplies must be issued within 10 days of the chargeable event, each transaction is reported when the invoice is issued, and VIES returns end. Revenue adds that cross-border traders will need the new systems to keep the 0% VAT arrangements.

Take a Kildare farm supplier selling equipment to a French co-operative. Its customer has been able to receive e-invoices since 1 September 2026. It enters Irish Phase 2 in November 2029 because it zero-rates EU sales, and the full EU regime on 1 July 2030. Our guide to selling to EU customers from Ireland under ViDA walks through each step, and our page on accounting for limited companies covers the monthly routine behind it.

What to do now

1. Work out your Irish phase. If the Large Corporates Division does not manage your affairs and you sell only in Ireland, your firm date is 1 November 2028, for receiving.
2. If you zero-rate any B2B sales to other Member States, mark November 2029 and 1 July 2030 in your calendar.
3. Ask your software provider when it will receive and send EN 16931 invoices over Peppol.
4. Check your VAT details and your customers' VAT numbers; our guide to VAT registration in Ireland covers the basics.
5. Keep every invoice in one system with consistent numbering. With staxo, invoices, VAT and bank records already sit together.
6. If you are setting up a new trading company, choose e-invoicing-ready tools from day one; our company formation service in Ireland can help.
7. Watch Revenue for technical specifications, and send questions to vatmodernisation@revenue.ie, the mailbox named in its February 2026 press release.

The rollouts ahead of Ireland show that businesses whose invoices already lived in proper software had the easiest start. To get your invoicing and VAT3 in one place well before 1 November 2028, create your staxo account.