Created with
Quick answer
Deregistering ends your Corporate Tax registration, not your filing history. The FTA can still review your earlier returns within its assessment window (generally up to five years), and the deregistration review is one of the moments an old error surfaces. If a past return understated the tax, correcting it via a voluntary disclosure can attract two penalties: the 1%-per-month voluntary-disclosure penalty on the tax difference, and the AED 500 incorrect-return penalty. The fix: get every return right — and reconciled — before you close.
There’s a comforting assumption that deregistering for Corporate Tax draws a line under everything — registration closed, obligations over. It closes your registration, but not your filing history. The returns you already submitted stay within the FTA’s reach, and if one of them contained an error, closing the company doesn’t make it disappear.
The reality
Deregistration ends your registration, not your history
When you deregister, the FTA reviews your position before approving — and it can still examine your earlier returns within its assessment window (generally up to five years), whether at the deregistration stage or afterwards. You’re also required to keep your records for seven years. So a mistake in a past return can surface precisely when you’re trying to close — the deregistration review is one of the moments it comes to light.
The sting
Correcting an old error can mean two penalties
Voluntary disclosure penalty + incorrect-return penalty
If an earlier return contained an error that understated the tax, correcting it via a voluntary disclosure can attract two charges: the voluntary-disclosure penalty of 1% per month on the tax difference (for each month or part, from the day after the original due date until the disclosure is submitted), and the AED 500 incorrect-return penalty for the return that carried the error. One mistake, corrected late, two penalties.
There’s an important nuance: the AED 500 incorrect-return penalty is not charged where a voluntary disclosure results in no additional tax due. So a correction with a genuine tax difference is where the double exposure bites — which is exactly the situation the FTA tends to query at deregistration.
Why it matters most at closure
The worst time to discover an error is on the way out
During normal trading, an error can be self-corrected early and cheaply. At deregistration, the timing works against you: the tax difference may have been sitting there for many months, so the 1% per month has had time to accumulate, and you’re trying to close under a deadline. That’s why the returns you file along the way — and especially the final position you present at deregistration — need to be right.
The takeaway
Get the returns right before you close
- Reconcile every return to your accounts and VAT figures before deregistering — the deregistration review will compare them.
- If you already know a past return was wrong, correct it via voluntary disclosure early — 1% per month is far cheaper than an FTA-found error (15% of the unpaid tax plus the monthly charge).
- Don’t assume closing wipes the slate — keep records for seven years and be ready to substantiate what you filed.
Closing your company? Let’s make sure your past returns hold up.
We review your earlier Corporate Tax returns before deregistration, correct any errors the right way, and present a clean final position — so a hidden mistake doesn’t turn into two penalties on the way out. CT deregistration from AED 399.
Related reading
The AED 500 incorrect-return penalty, explained →The “no business activity” declaration for CT deregistration →Related Fastlane services
FAQ
Can the FTA penalise me after I've deregistered for Corporate Tax?
Yes. Deregistration ends your registration, not your filing history. The FTA can still review your earlier returns within its assessment window — generally up to five years — whether at the deregistration stage or afterwards, and you must keep records for seven years. If a past return contained an error, closing the company does not remove the exposure.
Why might correcting an old return cost two penalties?
If an earlier return understated the tax and you correct it via a voluntary disclosure, you can face both the voluntary-disclosure penalty of 1% per month on the tax difference and the AED 500 incorrect-return penalty for the return that carried the error. The AED 500 is not charged where the voluntary disclosure results in no additional tax, so the double exposure arises when there is a genuine tax difference.
How is the voluntary disclosure penalty calculated?
Under Cabinet Decision 129 of 2025, it is 1% per month, or part of a month, on the tax difference, accruing from the day after the original due date of the return being corrected until the voluntary disclosure is submitted. Correcting early therefore costs far less than waiting, and is much cheaper than the FTA finding the same error in an audit.
Why do errors often surface at deregistration?
Because the FTA reviews your position before approving the deregistration, comparing your returns against your records. An error that had gone unnoticed during trading is exactly what such a review can catch — and by then the 1% per month on any tax difference may have accumulated for a long time, so the cost of a late correction is higher just as you are trying to close.
How do I avoid penalties when deregistering for Corporate Tax?
Reconcile every Corporate Tax return to your accounts and VAT figures before deregistering, correct any known error via voluntary disclosure early rather than waiting, and keep your records for seven years so you can substantiate what you filed. Presenting an accurate, reconciled position at deregistration is what keeps the review from turning into penalties.
General guidance on Corporate Tax penalties around deregistration, current as of September 2026; not tax advice. Based on the Tax Procedures Law and Cabinet Decision 129 of 2025 (effective 14 April 2026). Penalties, assessment windows and voluntary-disclosure obligations depend on your circumstances and may change — confirm your position with a qualified tax adviser or the FTA before acting.