UAE Corporate Tax: How to File Your 30 September 2026 Return

Key takeaway

Every company registered with the UAE Federal Tax Authority whose financial year ended 31 December 2025 must file its Corporate Tax return and pay any tax due by 30 September 2026 via the EmaraTax portal. The obligation applies even if no tax is owed. Late filing triggers an automatic penalty of AED 500 per month, and late payment accrues at 14% per annum on the outstanding amount.

For the majority of UAE companies, 30 September 2026 is the filing deadline for their second Corporate Tax return. Since the penalty regime was restructured by Cabinet Decision No. 129 of 2025, effective 14 April 2026, the cost of delay has risen significantly. This guide covers every step, every trap and the full timeline to file on time and pay within the deadline.

Who must file, and when

The filing obligation applies to every registered taxable person, regardless of legal form or location within the UAE. Before starting the filing process, it is essential that your company structure is correctly aligned with your business activity — a point we analyse in our Freezone, Mainland or Offshore comparison..

Who is required to file

• Every Mainland LLC incorporated in the UAE
• Every Freezone company, including those benefiting from 0% as a Qualifying Free Zone Person (QFZP)
• Every Offshore entity that is tax-resident in the UAE
• Every individual operating under a commercial licence with revenue exceeding AED 1 million in 2024
• Dormant or zero-revenue companies: a nil return is still mandatory

How the deadline is calculated

The rule is straightforward: nine months after the end of the financial year. For a calendar year ending 31 December 2025, the deadline is 30 September 2026. The return and payment must both be completed by this date. There is no separate payment window and no provisional or advance instalment system.

The 31 July 2026 window: a penalty waiver you can still claim

If your company registered late with the FTA, you are in principle liable for a fixed AED 10,000 late registration penalty. However, this penalty is automatically waived if you file your first Corporate Tax return within seven months of the end of your first tax period — that is, by 31 July 2026 for a year-end of 31 December 2025.

The 8 steps to filing on EmaraTax

Filing by 31 July 2026 recovers the AED 10,000 late registration penalty. Filing by 30 September 2026 avoids the late filing penalty. Missing 31 July does not make your return late, but it forfeits the waiver. The FTA confirmed in May 2026 that over 68,600 taxpayers have already benefited from this waiver initiative.

The 8 steps to filing on EmaraTax

Filing is done exclusively online through the FTA’s EmaraTax portal. There is no paper filing option. Here is the complete sequence.

1. Close the books: finalise the trial balance and produce IFRS-compliant financial statements for the tax period. IFRS for SMEs is accepted for companies below AED 50 million in revenue.
2. Obtain an audit if required: audited financial statements are mandatory if revenue reaches or exceeds AED 50 million, or if the company claims QFZP status.
3. Adjust accounting profit: add back non-deductible expenses (fines and penalties, 50% of entertainment costs, donations to non-qualifying entities) and remove exempt income such as qualifying dividends.
4. Choose the regime before starting: Small Business Relief, QFZP status or standard rate. Certain elections are irreversible once the return is submitted and cannot be added retroactively.
5. Complete the return in EmaraTax: the adaptive form includes up to 20 schedules depending on the company’s situation: income, deductions, related-party transactions, participation exemption, foreign permanent establishments.
6. Complete the Transfer Pricing Disclosure Form: mandatory if the company has conducted transactions with related parties above materiality thresholds.
7. Submit the return: once submitted, the return cannot be withdrawn or amended directly. Any correction must go through a voluntary disclosure.
8. Pay via GIBAN: payment is made by electronic bank transfer to the GIBAN account shown in EmaraTax. Allow for bank processing time — a transfer initiated on 30 September may arrive on 1 October and trigger late payment penalties.

The most expensive mistake

Treating payment as a separate step. Tax is due on the same date as the return: there is no later payment window. A bank transfer initiated at the last minute that is delayed by processing is a late payment in the eyes of the FTA.

The penalty schedule: what delay actually costs

The penalty regime was restructured by Cabinet Decision No. 129 of 2025, effective 14 April 2026. Penalties are automatic, with no prior notice.

Worked example

A company with AED 500,000 in taxable income and AED 11,250 in tax due that files six months late incurs: 6 × AED 500 = AED 3,000 in late filing penalties, plus approximately AED 788 in late payment interest (14% × AED 11,250 × 6/12), for a total additional cost of approximately AED 3,788 — plus the potential loss of the AED 10,000 late registration penalty waiver. The delay costs more than a third of the tax itself.

The 5 most common traps

1. Confusing 0% with no filing obligation

Whether your company benefits from Small Business Relief (revenue < AED 3 million), QFZP status or the AED 375,000 zero-rate band, the filing obligation remains. A Freezone company at 0% tax that fails to file faces the same penalties as a 9% company. Non-filing can also jeopardise preferential free zone treatment.

2. Overlooking irreversible elections

The choice of Small Business Relief, the realisation basis for pre-2024 assets or certain exemptions must be made within the return itself. EmaraTax does not apply them automatically. An omission forces a voluntary disclosure, with 1% per month interest on the resulting tax difference.

3. Ignoring the VAT / Corporate Tax cross-check

The FTA confirmed in 2026 that its audit programme systematically cross-references VAT return revenue figures against Corporate Tax return declarations. A material discrepancy between the two triggers an automatic alert and can lead to a targeted audit.

4. Underestimating transfer pricing preparation

If your company transacts with related parties (shareholders, sister companies, directors, family members), the Transfer Pricing Disclosure Form is mandatory above materiality thresholds. Arm’s-length documentation must be prepared before filing, not after an audit.

5. Counting on a deadline extension

The FTA does not grant individual extensions for Corporate Tax returns. There is no application procedure to request additional time. The date shown in EmaraTax is final. An incomplete audit, an overloaded accountant or unclosed books do not move the deadline.

The timeline for stress-free filing

Frequently asked questions

Does a dormant company still need to file?

Yes. The filing obligation exists regardless of activity level or tax amount due. A nil return showing zero taxable income and zero tax payable must be filed on time to avoid the AED 500 per month late filing penalty.

Is a Freezone company at 0% exempt from filing?

No. Every Freezone entity registered with the FTA must file its annual return, even if its income is entirely qualifying and taxed at 0%. Failure to file exposes the company to late filing penalties and may jeopardise QFZP eligibility.

Can I request an extension of the 30 September deadline?

No. The FTA does not grant individual extensions for Corporate Tax returns. The only known exception involved certain short tax periods in 2024, through a formal FTA decision for a defined group of taxpayers. It was not an open application process.

What happens if I discover an error after filing?

The return cannot be withdrawn or amended directly in EmaraTax. A voluntary disclosure must be filed, which triggers interest of 1% per month on the tax difference, calculated from the original due date. Correcting early therefore costs less than waiting for an audit.

Is Small Business Relief extended beyond 2026?

As of the date of this article, the Small Business Relief for companies with revenue below AED 3 million expires on 31 December 2026. No extension has been announced. Companies relying on it should plan their transition to QFZP status or the standard 9% rate.

How does the FTA detect discrepancies?

The FTA confirmed in 2026 that its audit programme cross-references VAT return revenue figures against Corporate Tax return declarations. A material gap between the two triggers an alert and can lead to a targeted compliance review.

Our on-the-ground experience

The most expensive mistake we see with our clients is almost never a miscalculation: it is the late filing of a company that owed nothing. A nil return filed late costs AED 500 per month in penalties, plus the forfeited AED 10,000 late registration waiver. The tax due was zero; the cost of delay exceeds AED 16,000. We support our clients through the close, the regime selection and the EmaraTax filing to prevent precisely this kind of situation.

Written by the Invest in Dubai team — multilingual advisors based in Dubai, specialising in UAE Corporate Tax compliance. Sources: Federal Decree-Law No. 47/2022, Cabinet Decision No. 75/2023, Cabinet Decision No. 10/2024, Cabinet Decision No. 129/2025, FTA Corporate Tax Returns Guide CTGTXR1.

This article presents the general regulatory framework and does not constitute personalised tax advice.

Summary

30 September 2026 is the absolute deadline for filing and paying Corporate Tax on financial years ending 31 December 2025. Filing is mandatory even at 0% tax. The restructured penalty regime from April 2026 makes every day of delay more costly. Companies eligible for the late registration penalty waiver should file before 31 July 2026. And payment must arrive in the FTA’s GIBAN account by the deadline — not merely be initiated.

Book your free consultation: we handle the close, the EmaraTax schedules and the filing on your behalf, within the deadline.