Country deep dive
Ireland's VAT Modernisation programme has moved from consultation to confirmed scope faster than most — Phase 1's taxpayer criteria were locked down over two years before go-live.
OGP takes on responsibility for the technical and procurement infrastructure connecting Irish public bodies to Peppol — years before any general B2B policy existed.
A working B2G precedent that Phase 1 businesses can point to directly — Irish public bodies have processed structured Peppol invoices for years already.
Gathering stakeholder views on real-time digital VAT reporting and electronic invoicing, following Finance Minister Michael McGrath's Budget 2024 announcement.
Finance Minister Paschal Donohoe confirms Revenue will implement a phased domestic e-invoicing rollout; Revenue's implementation document sets out the three-phase structure.
"Large corporate" is defined administratively — whether your tax affairs are managed by Revenue's Large Corporates Division — not by a public turnover or headcount threshold.
Revenue's VAT Modernisation guidance page sets out exactly who Phase 1 covers: VAT-registered businesses managed by Revenue's Large Corporates Division that are established, or have a fixed establishment, in Ireland. These large corporates must send e-invoices to Irish business customers and report a subset of e-invoice data to Revenue from Phase 1 go-live on 1 November 2028 — Revenue will write to each affected business to confirm its inclusion. All Irish businesses, regardless of size, must be able to receive structured e-invoices from that same date.
VAT-registered large corporates managed by Revenue's Large Corporates Division must issue structured e-invoices and report a subset of transaction data for domestic B2B sales. All businesses must be technically able to receive structured e-invoices from this date.
The domestic e-invoicing and reporting obligation extends to all remaining VAT-registered businesses engaged in cross-border EU B2B trade, ahead of full EU ViDA compliance in July 2030.
Irish businesses already operating under the domestic system transition to meet full EU ViDA obligations alongside every other member state.
Ireland's direction is clear even if the last technical details aren't locked — this is one clear step ahead of the UK's still-open format question.
Ireland is explicitly planning a Peppol-based model — this is stated policy direction, not speculation, even though the fine technical specification is still being worked through.
Revenue's February 2026 communication was unambiguous on this point — don't assume a "structured enough" PDF workflow will satisfy Phase 1.
This isn't a periodic VAT return — it's a live data feed alongside each invoice's issuance, conceptually similar to how PAYE Modernisation transformed payroll reporting.
Revenue has committed to publishing detailed guidance and technical specifications ahead of each phase — don't lock in field-level assumptions until that lands.
Ireland sits between the UK's pure decentralised model and France or Poland's full clearance model — invoices don't need government pre-approval, but transaction data still flows to Revenue in real time.
These are two different bodies with two different jobs — OGP scales the network, Revenue defines what must be reported over it.
Revenue is consulting closely with OGP specifically because Phase 1 represents a large jump in network usage from today's largely voluntary/public-sector base.
This is the key structural distinction from continental clearance models — Ireland pairs network-based exchange with a reporting obligation, rather than requiring government sign-off on every invoice.
Ireland's VAT gap is broadly in line with the EU average — but still high enough that Revenue has made closing it the explicit justification for Phase 1's reporting layer.
There's no self-assessment step here — Revenue tells you if you're in Phase 1, not the other way around.
It's an administrative definition tied to whether Revenue's Large Corporates Division manages your tax affairs — not a turnover or headcount threshold you calculate yourself. Revenue will write to affected businesses individually.
Both issuance and real-time reporting need to be built — this is more than a format change, it's a new live data pipeline into Revenue.
Even if you're not issuing yet, confirm your accounting software or an Access Point can accept inbound Peppol documents — this obligation is universal, not limited to large corporates.
Monitor the dedicated channel at vatmodernisation@revenue.ie and Revenue's published guidance — don't build against assumed field-level detail before it's confirmed.
November 2028 and November 2029 are only a year apart — it's more efficient to design your integration with both phases in mind from the start.
No penalty framework has been published yet — expect this alongside the detailed technical specifications ahead of Phase 1.
Other countries in the same region, ordered by their next dated milestone. Each links to a full briefing.