Corporate Tax Registration Deadline UAE: 2026 Guide

Your corporate tax registration deadline in UAE depends on your entity type. New companies must register on EmaraTax within 3 months of incorporation. Natural persons must register by 31 March of the year after their business turnover crosses AED 1 million. Miss your deadline and the Federal Tax Authority (FTA) charges a fixed AED 10,000 penalty — but a current waiver lets most businesses cancel or refund it.

Corporate tax is still relatively new in the UAE, introduced under Federal Decree-Law No. 47 of 2022 and applied to financial years starting on or after 1 June 2023. Many owners are still unsure whether they need to register, by when, and what happens if they're late. This guide answers all of it.

The deadlines by entity type

• New company (incorporated on or after 1 March 2024): register within 3 months of your incorporation or licence date.
• Existing company (licensed before 1 March 2024): deadlines were staggered through 2024 based on your licence-issue month and have now passed. If you missed yours, register immediately and use the penalty waiver below.
• Natural person / sole establishment with turnover above AED 1 million in a calendar year: register by 31 March of the following year.
• Non-resident with a Permanent Establishment in the UAE: deadlines vary by when your UAE presence began — confirm your specific date.

Registration is mandatory even if you expect to pay 0% tax, and even for free zone companies. Registering is a separate step from filing your return — you must do both.

Why the deadline matters: the AED 10,000 penalty

Under Cabinet Decision No. 75 of 2023, failing to submit your corporate tax registration application by your deadline triggers a flat administrative penalty of AED 10,000. It applies regardless of your profit — a startup expecting zero tax is still fined for registering late.

The knock-on effects go beyond the fine. Late or non-compliant businesses can face delays on VAT refunds, hold-ups obtaining government clearances and tax residency certificates, and closer scrutiny from the FTA on future filings.

The penalty waiver: how to cancel the AED 10,000 fine

In April 2025 the UAE Cabinet and FTA introduced a waiver that lets businesses eliminate the late-registration penalty entirely. It applies retroactively to penalties incurred from 1 June 2023 and remains one of the most useful reliefs available today.

The single condition: file your first corporate tax return (or annual declaration, if you are an exempt person) within 7 months of the end of your first tax period — two months earlier than the standard 9-month filing window.

Three things make this powerful:

• It's automatic. You don't file a separate waiver or reconsideration request. Meet the 7-month condition and the penalty is dropped.
• Already paid? It's refunded. The AED 10,000 is credited back to your EmaraTax account.
• Not registered yet? Still eligible. Register now, then file within the 7-month window, and any penalty is waived.

The catch: it applies only to your first tax period. File after 7 months — even within the normal 9-month deadline — and the penalty stands. For a company with a 1 January–31 December first tax period, the 7-month waiver deadline falls on 31 July.

How to register for corporate tax on EmaraTax

1. Log in to EmaraTax at the FTA portal using your existing FTA credentials or UAE Pass, or create an account.
2. Add a taxable person and select Corporate Tax registration.
3. Enter your business details — trade licence, entity type, activities, and ownership structure.
4. Upload documents — trade licence, Emirates ID and passport of owners and the authorised signatory, and the Memorandum of Association where applicable.
5. Submit. The FTA typically issues your Corporate Tax Registration Number within about 20 business days when documents are complete.

If you'd rather not navigate EmaraTax yourself, our Corporate Tax Registration service handles the full application end to end.

After you register: the filing deadline

Registration is only step one. Every taxable person must then file a corporate tax return within 9 months of the end of each tax period and pay any tax due by the same date. For a calendar-year business, a 31 December year-end means a 30 September filing deadline the following year. Late payment accrues a penalty currently set at 14% per annum on the unpaid tax. Our Corporate Tax Filing service covers the annual return.

Who actually has to register?

Almost everyone running a business in the UAE:

• Mainland and free zone companies — yes, including free zone entities that qualify for the 0% Qualifying Free Zone Person rate.
• Sole establishments and natural persons doing business with turnover above AED 1 million in a calendar year.
• Branches of foreign companies with a UAE presence.

The UAE corporate tax rate is 0% on taxable income up to AED 375,000 and 9% above that. Qualifying small businesses with revenue under AED 3 million can elect Small Business Relief to be treated as having no taxable income for the period — but they still must register and file.

Common mistakes that lead to penalties

• Assuming a 0% rate or free zone status means you can skip registration. It doesn't.
• Waiting until you hit the AED 1 million natural-person threshold to think about it, then missing the 31 March deadline.
• Treating registration and filing as the same step — they have separate deadlines.
• Missing the 7-month waiver window and paying a fine that could have been cancelled.

How much does corporate tax registration cost?

For most SMEs, professional corporate tax registration in the UAE is a modest one-off fee, with annual filing priced separately based on transaction volume and complexity. Set against a AED 10,000 late-registration penalty — and the cost of a misfiled first return — professional support typically pays for itself by avoiding a single penalty event. You can see transparent pricing on our pricing page or get a tailored estimate via our instant quote tool.

Frequently asked questions

What is the corporate tax registration deadline in the UAE? It depends on your entity. New companies register within 3 months of incorporation; natural persons by 31 March of the year after turnover exceeds AED 1 million; companies that existed before 1 March 2024 had staggered 2024 deadlines that have now passed.

What is the penalty for late corporate tax registration? A flat AED 10,000 administrative penalty under Cabinet Decision No. 75 of 2023, regardless of your profit or tax rate.

Can I avoid the AED 10,000 penalty? Yes. Under the FTA's penalty-waiver initiative, the fine is cancelled — or refunded if already paid — provided you file your first corporate tax return or annual declaration within 7 months of the end of your first tax period. It applies automatically, with no separate request.

Do free zone companies need to register for corporate tax? Yes. Free zone entities must register and file even if they qualify for the 0% Qualifying Free Zone Person rate.

Do I still need to register if I qualify for Small Business Relief? Yes. Registration and filing are mandatory even at 0% tax or under Small Business Relief for businesses with revenue under AED 3 million.

How long does corporate tax registration take? The FTA generally issues your Corporate Tax Registration Number within about 20 business days when your documents are complete.

Final thoughts

Corporate tax deadlines are tied to your specific licence and tax period, and the waiver window is tighter than the standard filing deadline — so the safest move is to register early and file your first return well ahead of the 7-month mark.

At TaxBox.ae, we handle corporate tax registration, filing, and Small Business Relief for UAE SMEs and startups entirely online, with a dedicated account manager and a full review before anything is submitted to the FTA. Book a free consultation and we'll confirm exactly which deadline applies to you and take it from there.