UAE Corporate Tax Registration Deadline & Penalty (2026 Guide)

Every business that is a taxable person in the UAE must register for corporate tax with the Federal Tax Authority (FTA) and obtain a Corporate Tax Registration Number — including free-zone companies that pay 0%. The headline rules today: a newly incorporated company must register within three months of incorporation; missing your deadline triggers a fixed AED 10,000 late-registration penalty; and registration is separate from filing, which is due within nine months of the end of your tax period. This guide explains who must register, the deadlines, the penalty and the FTA's penalty waiver.

UAE Corporate Tax was introduced by Federal Decree-Law No. 47 of 2022 and applies to financial years beginning on or after 1 June 2023. Registration timelines were set by FTA Decision No. 3 of 2024. Deadlines and penalties change, so confirm your specific dates on the EmaraTax portal or with a tax adviser before acting.

Who must register for corporate tax?

Corporate tax registration is required for:

• All resident juridical persons — mainland companies and free-zone companies, including Qualifying Free Zone Persons taxed at 0%.
• Natural persons (individuals) conducting a business or business activity in the UAE whose total turnover exceeds AED 1 million in a Gregorian calendar year.
• Non-resident persons with a permanent establishment or a taxable nexus in the UAE.

Registering at 0% is still mandatory — the free-zone 0% rate does not exempt a company from registering and filing.

Corporate tax registration deadlines

New companies (incorporated on or after 1 March 2024)

A juridical person that is incorporated, established or otherwise recognised on or after 1 March 2024 must apply for corporate tax registration within three months of the date of incorporation (or of establishment/recognition). The same three-month rule applies to companies incorporated under the laws of a free zone.

Natural persons (individuals in business)

An individual running a business whose turnover exceeds AED 1 million in a calendar year must register by 31 March of the following year.

Existing companies — the transitional 2024 deadlines

Companies that already existed before 1 March 2024 had to register on a schedule based on the month their licence was first issued (regardless of the year of issue). These transitional deadlines fell during 2024 and have now passed — any business that existed then and has not yet registered is already late and should register immediately. The schedule was:

Where a company held no licence at 1 March 2024, the deadline was three months from that date. Confirm the current position for your entity with the FTA.

The AED 10,000 late-registration penalty

Failing to submit a corporate tax registration application within the required deadline results in an administrative penalty of AED 10,000. The penalty was set under Cabinet Decision No. 75 of 2023 (as amended by Cabinet Decision No. 10 of 2024) on corporate tax penalties. It is a one-off, fixed amount for late registration — but see the waiver below.

The FTA late-registration penalty waiver

The FTA introduced a waiver of the AED 10,000 late-registration penalty for many taxpayers. In broad terms, the penalty is cancelled — or refunded if already paid — where the taxable person files its first corporate tax return, or annual declaration, within seven months of the end of its first tax period (rather than the usual nine). Conditions apply, so check your eligibility on EmaraTax. It is a strong incentive to register and file early rather than delay.

Registration vs filing — don't confuse the two

These are two separate obligations:

• Registration is a one-time step to obtain your Corporate Tax Registration Number, due on the deadlines above.
• Filing and payment of the corporate tax return is due within nine months of the end of the relevant tax period — for a first tax period ending 31 December 2024, that means by 30 September 2025 (see our corporate tax return filing guide).

Where and how to register

Registration is completed online through the FTA's EmaraTax portal — you submit your entity, licence, activity and ownership details with the trade licence and ID documents, and the FTA issues your Corporate Tax Registration Number. For the full step-by-step process and hands-on support, see our corporate tax registration and advisory service. Errors in activities or ownership can delay approval or set the wrong tax position, so many businesses have it handled for them.

How Avyanco helps

Avyanco's Chartered-Accountant-led team handles corporate tax end to end — registration on EmaraTax, Qualifying Free Zone Person assessment, Small Business Relief eligibility, return preparation and FTA support — so you meet every deadline and avoid penalties. Talk to our tax team to register or review your corporate tax position.