UAE Corporate Tax Filing 2026: Deadlines & Penalties
UAE corporate tax filing is no longer something to leave until the last minute. For companies with a 31 December 2025 year-end, the deadline to file the return and pay any tax due was 30 September 2026, and the Federal Tax Authority (FTA) has been publicly reminding businesses to file on time. If your financial year ends on 31 December 2026, your deadline will be 30 September 2027.
This guide explains how the deadline works, what the penalties are, how Small Business Relief now runs to 2029, and what to prepare before you file.
What is the UAE corporate tax filing deadline?
A taxable person must submit the corporate tax return and settle any tax due within nine months of the end of the financial year (the tax period). The deadline follows your own year-end, not the calendar year. Some examples:
- Year-end 31 December 2025: file and pay by 30 September 2026
- Year-end 31 March 2026: file and pay by 31 December 2026
- Year-end 31 December 2026: file and pay by 30 September 2027
Returns are filed through the FTA’s EmaraTax portal, and a registered tax agent can file on your behalf.
Who must file a UAE corporate tax return?
Every business registered for UAE corporate tax must file a return for each tax period. That includes mainland companies, free zone companies, and businesses that expect to owe no tax. A business that qualifies for Small Business Relief still files, because the relief is claimed inside the return. The standard rate is 9% on taxable income above AED 375,000, with 0% on income up to that amount.
Not sure whether your business needs to register yet? Read our guide on who needs to register for corporate tax in the UAE, or see our corporate tax registration service.
Penalties for late filing, late payment and poor records
Administrative penalties are set out in Cabinet Decision No. 75 of 2023. The main ones are:
| Violation | Penalty |
|---|---|
| Late filing of the tax return | AED 500 for each month (or part of a month) for the first 12 months, then AED 1,000 for each month |
| Late payment of tax due | 14% per year on the unpaid amount, calculated monthly |
| Late corporate tax registration | AED 10,000 |
| Failure to keep required records | AED 10,000, rising to AED 20,000 for a repeat within 24 months |
| Failure to update tax records with the FTA | AED 1,000, rising to AED 5,000 for a repeat within 24 months |
Penalties can stack. A return that is several months late can carry monthly filing penalties and a late-payment penalty on the unpaid tax at the same time. Rules and relief measures change, so confirm the current position with the FTA or an adviser before you act.
Small Business Relief now runs to 2029
In August 2026 the UAE Ministry of Finance extended Small Business Relief by three years. It now covers tax periods ending on or before 31 December 2029, instead of ending in 2026. Businesses with revenue of up to AED 3 million can elect to be treated as having no taxable income for the period, provided they meet the conditions in the legislation.
Two points catch businesses out. Qualifying Free Zone Persons and members of multinational enterprise groups are not eligible, and the relief is not automatic: you must elect it when you file.
Corporate tax filing checklist
- Confirm your tax period and year-end date, and diarise the nine-month deadline.
- Close your books and reconcile bank, receivables and payables.
- Prepare financial statements, audited where required. Our audit team can advise on whether that applies to you.
- Adjust accounting profit for tax purposes: non-deductible expenses, exempt income and related-party transactions.
- Decide whether you can elect Small Business Relief.
- Calculate the tax, file through EmaraTax and pay by the deadline.
- Keep your records for at least seven years.
Common corporate tax filing mistakes
- Assuming every company has a 30 September deadline, when the deadline follows your own year-end.
- Believing a free zone company does not need to file.
- Leaving bookkeeping until the return is due, which makes accurate figures hard to produce.
- Forgetting to elect Small Business Relief when you are eligible.
- Waiting for the last day to pay, when late payment attracts a monthly penalty.
How Esteem Advisory can help
Esteem Advisory is a UAE-based financial services firm. We support businesses with UAE corporate tax services, accounting and bookkeeping, VAT consulting and audit, so your numbers are clean well before a deadline arrives.
Contact Esteem Advisory for a corporate tax filing review.
UAE corporate tax filing: frequently asked questions
What is the deadline for UAE corporate tax filing?
Within nine months of the end of your financial year. For a 31 December year-end, that is 30 September of the following year.
What is the penalty for filing a UAE corporate tax return late?
AED 500 for each month or part of a month for the first 12 months, then AED 1,000 for each month, plus a separate penalty on any tax paid late.
Do free zone companies need to file corporate tax returns?
Yes. Registered free zone businesses file returns too, including those that expect to pay 0%.
How long should I keep corporate tax records?
At least seven years after the end of the tax period.
Can I file the return myself?
Yes, through the FTA’s EmaraTax portal, or you can appoint a registered tax agent to file for you.
Last updated: 2 October 2026. This article is general information, not tax or legal advice. Deadlines, penalties and reliefs can change, so check the Federal Tax Authority website or speak to an adviser about your situation.
