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Updated June 2026

How to Deregister from VAT in Ireland

Turnover dropped, or you’re closing the business — here’s the actual process, deadlines, and what you owe on the way out.

Last updated: June 2026

Can deregister if
Turnover expected below threshold
or ceasing to trade
Process
Via ROS
Revenue Online Service
Final obligation
One last VAT return
covering up to cancellation date

When you can deregister

You can apply to cancel your VAT registration if your turnover is genuinely expected to stay below the relevant threshold going forward, if you’re ceasing to trade entirely, or if you were only ever registered for a specific reason that no longer applies.

How to deregister, step by step

Cancellation is normally requested through Revenue Online Service (ROS) or via your tax agent. You’ll need to specify your effective cancellation date and reason. You must file one final VAT return covering the period up to cancellation, and you may need to account for VAT on business assets you still hold if you claimed input VAT on them when purchased.

Can you register again later?

Yes — deregistering isn’t permanent. If your turnover picks back up and crosses the threshold again, or you want to re-register voluntarily, you go through the normal registration process again.

Frequently asked questions

Do I have to deregister if my turnover drops below the threshold?

No, deregistration is optional in this scenario — you can remain registered if it still benefits you, such as reclaiming input VAT or dealing mainly with VAT-registered customers.

What happens to assets I still hold when I deregister?

If you claimed input VAT on business assets you still hold, you may need to account for VAT on their value at deregistration, similar to a deemed disposal.

How long does deregistration take to process?

Revenue typically processes online deregistration requests within a few weeks, with confirmation provided through ROS.

Can I get a VAT refund when I deregister?

If your final return shows you’ve overpaid, Revenue will refund the difference in the normal way, the same as any other VAT return.

Do I keep the same tax registration number if I re-register later?

Often yes, though it’s worth confirming with Revenue at the time, since specific circumstances can affect this.

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General guidance only. Deregistration eligibility and final adjustments depend on your specific circumstances. Always verify with Revenue.ie or consult a qualified accountant before making decisions.

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