Corporate Tax Filing Deadline in the UAE: Every Date, Penalty and Exception for 2026

Reviewed by the Corporate Tax team at DgTx — FTA-registered Tax Agent · ISO 9001 certified · Dubai, Sharjah, Abu Dhabi

What Is the Corporate Tax Filing Deadline in the UAE?

UAE Corporate Tax was introduced under Federal Decree-Law No. 47 of 2022. It applies at 0% on taxable income up to AED 375,000 and 9% above that threshold. Returns are filed through the Federal Tax Authority’s EmaraTax portal.

The rule itself is short: a Corporate Tax return must be submitted within nine months after the end of the relevant tax period. The complication is that businesses read this as a fixed calendar date, when it is actually a moving one. Because most UAE companies run a January to December financial year, 30 September dominates the conversation — but a company with a March year-end has an entirely different deadline, and treating September as universal is how a compliant business becomes a late one.

One more distinction matters before we go further. Filing and payment share the same deadline. There are no provisional or advance instalments in the UAE regime; the full liability falls due with the return.

The Two Deadlines Every UAE Business Should Diarise

The timeline below shows the structure. Most businesses only have one deadline. Businesses that registered late have two, and the earlier one is worth real money.

Diagram 1. The nine-month statutory deadline and the seven-month penalty waiver deadline.

Corporate Tax Filing Deadlines by Financial Year End

Find your year-end in the left column. The deadline in the right column applies to both the return and the payment.

Table 1. Corporate tax filing deadlines by financial year end. Always confirm your own tax period in EmaraTax rather than assuming a calendar year.

The Seven-Month Rule: How to Get the AED 10,000 Penalty Waived

The late registration penalty for Corporate Tax is AED 10,000. Thousands of UAE businesses incurred it — often small companies that held a trade licence primarily for visa purposes and did not realise registration was mandatory regardless of profit.

The FTA introduced a waiver initiative to resolve this. Under it, the penalty is cancelled — or refunded if already paid — provided the taxable person files their first Corporate Tax compliance return, or in the case of an exempt person their annual declaration, within seven months from the end of the first tax period rather than the standard nine.

Three features of the initiative are frequently misunderstood, and each one costs money when missed.

1. It applies only to the first tax period. This is a one-off transitional relief, not a permanent shortening of the deadline.
2. It is automatic when the condition is met. Where you file within seven months, the penalty is waived without a reconsideration or waiver request. If it was already paid, the AED 10,000 is credited to your EmaraTax Corporate Tax account, from where it can offset other liabilities or be refunded on application.
3. Registration alone is not enough. You must complete registration and file the first return inside the window. Doing one without the other forfeits the relief.

The scale tells you how common the underlying problem was. By May 2026 the FTA reported that beneficiaries had exceeded 68,600 taxable persons, and stated it expected the figure to rise to around 91,000, with roughly 22,000 businesses still able to submit registration applications under the initiative.

Who Has to File — Including Businesses That Owe Nothing

The filing obligation follows registration, not profitability. A return is required even where the final liability is zero.

Table 2. Filing obligations by business situation.

A note on Small Business Relief

Small Business Relief allows a resident business with revenue at or below AED 3 million to treat its taxable income as nil and file a simplified return. It is a transitional measure, currently available for tax periods ending on or before 31 December 2026 unless extended. Businesses relying on it should be planning now for the period after it falls away, because the first full-rate filing tends to expose weaknesses in record-keeping that the simplified return concealed.

What Late Filing Actually Costs

Table 3. Indicative penalties relevant to the corporate tax filing deadline. The schedule is periodically revised — confirm the current position on the FTA portal before relying on these figures.

The structure of the late filing penalty rewards fast correction. A return filed two months late costs AED 1,000; the same return left for eighteen months costs AED 12,000 in monthly accruals alone, before any interest on unpaid tax. There is no scenario in which delaying improves the outcome.

Preparing Before the Deadline: Where the Time Actually Goes

Businesses that miss the corporate tax filing deadline rarely fail at the portal. They fail at the accounting. The EmaraTax submission takes hours when the books are reconciled; it takes weeks when they are not, because every figure in the return must reconcile to financial statements you can produce on request.

• Financial statements prepared under IFRS, with an audit where the entity is required to have one.
• The tax computation reconciling accounting profit to taxable income, with each adjustment supported.
• Documentation for any relief or election — Small Business Relief, Qualifying Free Zone Person status, group relief.
• Transfer pricing documentation and disclosures where related party transactions exist.
• Evidence supporting exempt income, foreign tax credits and carried-forward losses.

A practical rule from filing season: start the computation at month six, not month eight. The gap between those two starting points is the difference between a considered filing position and a rushed one.

Filing and paying

4. Log in to EmaraTax and open the Corporate Tax module for the relevant tax period.
5. Complete the return, ensuring every figure ties back to the financial statements on file.
6. Submit before the deadline and download the acknowledgement.
7. Pay the liability by bank transfer to your GIBAN or by card. The money, not just the return, must reach the FTA by the deadline.
8. If you later discover an error, correct it through an amendment or voluntary disclosure rather than waiting for the FTA to find it.

How DgTx Helps Businesses Meet the Corporate Tax Filing Deadline

DgTx is an ISO 9001-certified financial consultancy and an FTA-registered Tax Agent, operating in strategic partnership with Etisalat from offices in Dubai, Sharjah and Abu Dhabi. The firm has supported more than 5,000 clients across the Emirates and submitted over 15,000 cases to the Federal Tax Authority.

Our Corporate Tax support covers:

• Corporate Tax registration, including late registrations pursued under the waiver initiative.
• Preparation of the tax computation and filing of the return through EmaraTax as your appointed tax agent.
• Qualifying Free Zone Person assessments and Small Business Relief eligibility reviews.
• Transfer pricing documentation and related party disclosures.
• Accounting, bookkeeping and financial audit, so the return rests on reconciled records.
• VAT compliance, AML advisory and Shared CFO support.

If your first Corporate Tax period has ended and you have not yet filed, the most valuable thing you can do this week is confirm two dates: your statutory deadline, and whether a seven-month waiver window is still open to you.

Frequently Asked Questions About the Corporate Tax Filing Deadline