UAE Corporate Tax Return Deadlines in 2026: What to File and When

The UAE is now in its second corporate tax filing cycle, and the FTA expects businesses to get it right. This guide covers the deadlines that matter in 2026 and the penalties that apply when they slip.

The 9-month rule

Your corporate tax return must be filed, and any tax paid, within nine months of the end of your financial year. Two common examples:

• Financial year ending 31 December 2025: file and pay by 30 September 2026.
• Financial year ending 31 March 2026: file and pay by 31 December 2026.

There is no separate payment deadline. The tax is due with the return.

Registration comes first

Every business operating in the UAE must register for corporate tax and obtain a Tax Registration Number, even if it expects to pay 0%. That includes free zone companies and individuals whose business turnover exceeds AED 1 million per year. Late registration carries a penalty of AED 10,000, although the FTA has offered waivers where a business files its first return within seven months of the end of its first tax period.

What late filing costs

Late filing attracts AED 500 per month for the first twelve months and AED 1,000 per month after that. Unpaid tax and incorrect returns attract further penalties on top. The pattern across FTA penalties is consistent: they grow with time, so early correction is always the cheapest correction.

What to prepare before filing

1. Financial statements prepared under IFRS, audited where required.
2. Adjustments and reliefs: exempt income, disallowed expenses, and elections such as Small Business Relief where revenue is below AED 3 million.
3. Free zone assessments: Qualifying Free Zone Person status must be reviewed for the year, with the de minimis test checked.
4. Transfer pricing documentation for dealings with related parties and connected persons, including owner remuneration.
5. Records retained for 7 years that support every figure in the return.

Do not leave it to the deadline month

Most filing problems are really bookkeeping problems discovered too late. If the books are clean by month three, the return is a formality by month nine.

Al Burhan is a registered FTA tax agent. We handle corporate tax registration, filing and advisory end to end, including free zone assessments. Book a free consultation and we will map your exact deadlines.