Domestic-only or intra-EU? Ireland's two-tier VAT registration

Two registrations, one VAT number, and a difference that only shows up when an EU supplier refuses to zero-rate you.

Last reviewed 21 September 2026

Ireland has had a two-tier VAT registration system since June 2019, and it catches people out in a way that is completely silent until it is not.

The two tiers

Revenue’s own framing is that domestic registration “is sufficient for trading within the State and with non-EU countries”, and that the split gives a speedier process for businesses that only need the domestic one while reducing the risk attached to fraudulent cross-border trade.

The failure mode, in order

This is worth spelling out because nothing warns you:

1. You register domestic-only, reasonably, because you sell to Irish customers.
2. A year later you buy software, advertising or components from a supplier in another Member State.
3. You give them your Irish VAT number expecting to be zero-rated.
4. It does not validate on VIES, because a domestic-only number is not on VIES.
5. They charge you their country’s VAT instead.
6. That VAT is not Irish VAT, so it does not go on your VAT3. It is a cost.

Nobody sends a letter. The invoice just quietly has foreign VAT on it, and if the amounts are small it can run for a long time before anyone asks why.

What intra-EU registration asks for

More than domestic-only, which is the point of the split. The application seeks additional information such as:

• the customer type you supply — private individuals, businesses, or both;
• the due diligence you carry out on current and prospective EU suppliers;
• evidence of trade, or substantive evidence of an intention to trade, with other Member States.

That last one is the practical hurdle for a new business: you are being asked to evidence trade you have not done yet. Contracts, quotes and correspondence are the usual answer.

The forms

Both are completed online through ROS, by you or by your agent. Businesses not established in the State use the non-resident variants of the same forms.

You can move up later

Domestic-only customers may apply for intra-EU status at any time, so this is a reversible decision rather than a permanent one. The sensible reading: take domestic-only if you genuinely have no EU trade in view, because it is faster, and upgrade before you place the first EU order rather than after the first invoice arrives with foreign VAT on it.

If you are not registered at all yet, the thresholds guide covers when you have to be — and the choice on this page is made at the same moment, on the same form.