Entities with a tax period ending 31 December 2025 must file the corporate tax return and pay any tax due by 30 September 2026. Filing and payment share a single deadline and the Federal Tax Authority does not grant extensions. The return is required even where no tax is payable — including entities in Small Business Relief and entities that traded not at all during the year.
What happened
No rule has changed. What has changed is the distance to the deadline: 44 days remain. UAE corporate tax returns are due nine months after the end of the tax period, so an entity whose financial year ended on 31 December 2025 must file by 30 September 2026. Payment of any tax due falls on the same date — the two are a single obligation, not a filing followed by a later settlement. The Federal Tax Authority (FTA) does not operate an extension mechanism or a grace period for corporate tax returns, and the late-filing penalty of AED 500 per month runs from the day after the deadline, escalating in later months under the administrative penalties framework.
What changes in practice
For most calendar-year entities, the binding constraint is not the return itself but the financial statements behind it. Corporate tax is computed from accounts prepared under IFRS or IFRS for SMEs, and an entity that has not closed its 2025 books cannot produce a defensible return. Where audited financial statements are required — for Qualifying Free Zone Persons, and for entities above the revenue threshold that triggers a statutory audit — the audit itself has to be scheduled and completed before filing. Working back from 30 September, an entity that has not started its close is already tight rather than comfortable. A sensible internal target is 15 September, leaving two weeks for the portal submission, the payment mechanics and anything the accounts throw up.
Who it applies to
Every taxable person registered for UAE corporate tax with a tax period ended 31 December 2025 — mainland companies, free zone companies, branches of foreign entities and natural persons conducting business above the registration threshold. Three categories consistently misread the obligation. Entities in Small Business Relief still file: the relief is claimed in the return, so the return is the instrument that delivers it. Entities with no taxable income still file. Dormant entities — those holding a live licence but carrying on no activity — still file, and in practice they are the group most likely to miss the date because nobody is monitoring them. Entities with a non-calendar year end have a different deadline, nine months after their own period end.
The exposure
The direct cost begins at AED 500 per month and increases the longer the return remains outstanding, with separate penalties for late payment of the tax itself. The indirect costs matter more. An outstanding filing is visible to the FTA and raises the probability of enquiry across the entity's wider position. It creates friction at licence renewal, where authorities increasingly check tax standing. And it creates friction with banks: relationship reviews routinely ask for the most recent filed return and audited accounts, and an entity that cannot produce them can find account opening delayed or an existing account placed under review. A penalty is a payment; a frozen account is an operational problem.
What to do now
Confirm the entity's tax period and registration status on the EmaraTax portal, and check that the corporate tax registration itself is complete — a surprising number of late filings trace back to an incomplete registration rather than a missed date. Close the 2025 accounts, or set a date by which they will be closed, and where an audit is required confirm the auditor's timetable in writing this week. Review whether Small Business Relief applies and, if it does, ensure the election is actually made in the return rather than assumed. If the entity is dormant, file anyway; a nil return takes little time and removes the exposure entirely. Finally, arrange the payment mechanics in advance: transfers to the FTA can take several days to clear, and a payment initiated on 30 September may not be a payment made on 30 September.
Sources
- https://tax.gov.ae/en/taxes/corporate.tax/news.aspx
- https://tax.gov.ae/en/taxes/corporate.tax/corporate.tax.guides.references.aspx
Published 17 August 2026 on the basis of public sources and official United Arab Emirates instruments. This is not legal or tax advice. Verify your position with a qualified professional before acting.