The three dates, and who each one catches
| Phase | Date | Who must issue |
|---|---|---|
| One | 1 November 2028 | VAT-registered large corporates, domestic B2B |
| Two | November 2029 | VAT-registered businesses in cross-border EU B2B trade |
| Three | 1 July 2030 | EU-wide ViDA, cross-border EU B2B across all Member States |
Revenue set out this three-phase approach in VAT Modernisation: Implementation of eInvoicing in Ireland, published on 8 October 2025, and keeps a live version on its VAT modernisation timeline.
The date most people miss
The three phases above are about issuing. There is a fourth obligation running underneath all of them, and it is the one that applies to nearly everybody.
Revenue's large corporates page states it directly: from 1 November 2028, all businesses in Ireland are required to be able to receive structured e-invoices. Not the large ones. All of them.
The reason is in the design. E-invoicing only works end to end, so the ViDA Directive places a legal obligation on business customers to accept e-invoices from suppliers. Revenue puts it this way: even if your own business is not yet required to issue e-invoices under the phased rollout, you will need to have the capability to receive them in the required structured electronic format.
So the answer to "when does this affect me" has two dates for most businesses, and they happen to be the same date. You probably do not have to issue in 2028. You do have to be able to receive.
Why only one of the three dates has a day on it
Revenue has published a specific day for Phase One: 1 November 2028. For Phase Two it has published November 2029, with no day of the month named, on both its implementation document and its timeline page as updated on 20 July 2026. Phase Three, 1 July 2030, is the ViDA date and is set at EU level.
You will see 1 November 2029 quoted widely for Phase Two. It is a reasonable inference from the pattern of Phase One, but it is not something Revenue has published, and on a date that drives a systems project it is worth knowing the difference between what has been announced and what has been assumed.
Who counts as a large corporate
Phase One is defined by who manages the tax file, not by turnover. Revenue confirmed the test on 10 February 2026: a large corporate is a VAT-registered business whose tax affairs are managed by Revenue's Large Corporates Division, and that is established or has a fixed establishment in Ireland.
You will not have to work it out. Revenue has said it will write to large corporates to notify them of their inclusion in Phase One.
Could the dates move?
They could, and they have a fixed point that makes large movement unlikely. Phase Three is not Ireland's date to set: 1 July 2030 comes from the EU's VAT in the Digital Age package, adopted on 11 March 2025 as Council Directive (EU) 2025/516, and it applies across every Member State. Ireland's two domestic phases exist to get Irish businesses ready ahead of it, so there is limited room to push them back without defeating their purpose.
What has not yet been published is the detail. Revenue has committed to publishing detailed guidance and technical specifications well in advance of each phase. Until those arrive, the dates are firmer than the mechanics.
What this means for the next two years
Nothing you buy in 2026 will still be the right purchase in 2028, because the specifications are not out. The useful work now is knowing which of the three groups you or your clients fall into, and asking your accounting software supplier in writing what their roadmap is for EN 16931 structured invoicing and Irish real-time reporting.
The full picture, including what a structured e-invoice actually is and what a practice should do this year, is on our Ireland e-invoicing page for accounting practices.