UAE Corporate Tax Deadlines 2026: Filing & Registration Calendar
If your business is registered for corporate tax in UAE, 2026 has more compliance deadlines than any year since the tax was introduced. Miss one and the penalties start at AED 10,000.
Most businesses will file their second corporate tax return this year. Natural persons have a 31 March registration deadline that many will not realise applies to them. The eInvoicing pilot launches in July. On top of all that, a reformed penalty framework kicks in on 14 April under Cabinet Decision No. 129 of 2025. For the first time, corporate tax fines will follow the same structure as VAT and Excise penalties.
This calendar puts every 2026 deadline in one place so nothing catches you off guard: registration cutoffs, filing windows, payment dates, the FTA’s penalty waiver, and eInvoicing milestones.
The corporate tax filing deadline in the UAE is nine months from the end of your financial year. For a year ending 31 December 2025, the deadline is 30 September 2026. Both the return and the payment must be completed by that date. This applies to every taxable person, Free Zone entities included, even if no tax is owed.
Complete UAE Corporate Tax Deadline Calendar for 2026
| Deadline | Obligation | Applies To | Legal Source | Penalty |
|---|---|---|---|---|
| 31 Mar 2026 | CT registration | Natural persons (turnover >AED 1M in 2025) | FTA Decision 3/2024 | AED 10,000 (waivable under CTP006) |
| 31 Mar 2026 | CT return filing & payment (FY ending 30 Jun 2025) | All taxable persons with June FY-end | FDL 47/2022 | AED 500/mo (1–12), then AED 1,000/mo + 14% interest |
| 14 Apr 2026 | New penalty framework takes effect | All taxable persons | Cabinet Decision 129/2025 | Revised penalty matrix aligned with VAT |
| Within 3 months of incorporation | CT registration | Businesses incorporated in 2026 | FTA Decision 3/2024 | AED 10,000 |
| 1 Jul 2026 | eInvoicing pilot begins | All businesses (awareness) | Ministry of Finance | N/A (preparation phase) |
| 31 Jul 2026 | Appoint ASP for eInvoicing | Revenue ≥AED 50M | Cabinet Decision 106/2025 | TBC |
| 30 Sep 2026 | CT return filing & payment (FY ending 31 Dec 2025) | All taxable persons with calendar year | FDL 47/2022 | AED 500/mo + 14% annual interest |
| 31 Dec 2026 | CT return filing & payment (FY ending 31 Mar 2026) | All taxable persons with March FY-end | FDL 47/2022 | AED 500/mo + 14% annual interest |
| Ongoing (within 20 business days) | Update tax records with FTA after any business change | All registered taxable persons | Tax Procedures Law | AED 10,000 (first); AED 20,000 (repeat within 24 months) |
Table of Contents
Corporate Tax Registration Deadlines for 2026
If your business was established before 1 March 2024, you should already be registered. The original deadlines under FTA Decision No. 3 of 2024 ran from May through December 2024 based on your trade licence issuance month.
Any business that missed those deadlines is already exposed to the AED 10,000 late registration penalty. Our corporate tax registration guide covers the full process.
Businesses Incorporated in 2026
Companies formed on or after 1 March 2024 have three months from their date of incorporation to register. A company formed in January 2026 must register by April. One formed in June must register by September. There is no extension and no flexibility on this window.
Natural Persons
This is the deadline most people miss. If you are a sole proprietor, freelancer, or individual partner in an unincorporated partnership, and your UAE business turnover exceeded AED 1 million in 2025, you must register by 31 March 2026. Note that the threshold is based on gross turnover, not profit. A freelancer who earned AED 1.2 million in revenue but spent AED 1.1 million on expenses is still required to register. The obligation exists whether or not any tax will actually be owed.
Non-Residents
Non-residents with a Permanent Establishment in the UAE must register within nine months of establishment (if before 1 March 2024) or three months (if after). Those with a UAE nexus had a 31 May 2024 deadline. If you have not registered and still have an ongoing UAE tax obligation, you are already late.
Free Zone Entities
Every Free Zone company must register regardless of whether it qualifies for the 0% QFZP rate. The preferential rate is applied after you register and file. It does not exempt you from the registration itself. For QFZP eligibility conditions, see our Free Zone corporate tax page.
Penalty: AED 10,000 for late registration under Cabinet Decision No. 75 of 2023, unless the business qualifies for the CTP006 waiver covered below.
Corporate Tax Filing Deadlines: The 9-Month Rule
You have nine months from the end of your financial year to file your return and pay any tax owed. Both must be done by the same date. Filing without paying does not count. Paying without filing does not count either. The FTA treats both as non-compliance.
For the full step-by-step process, see our corporate tax filing in the UAE guide.
2026 Filing Deadlines by Financial Year-End
| Financial Year Ending | Filing & Payment Deadline |
|---|---|
| 30 June 2025 | 31 March 2026 |
| 31 December 2025 | 30 September 2026 |
| 31 March 2026 | 31 December 2026 |
Filing is mandatory even if taxable income falls within the 0% bracket (below AED 375,000) or if the entity claims Small Business Relief. Free Zone companies must file to maintain QFZP eligibility. Missing a deadline can trigger loss of the preferential 0% rate.
All returns are filed electronically via the EmaraTax portal at tax.gov.ae. The FTA has repeatedly warned businesses not to wait until the last day: bank transfers and electronic payments may not be processed instantly, and payment is considered received only when it reaches the FTA, not when initiated by the payer.
A company that initiates a bank transfer on 30 September but whose payment clears on 1 October is late and will incur the late payment penalty regardless of the transfer timestamp on their bank statement.
For businesses filing for the first time, the process involves additional complexity:
- Determining your first Tax Period (which may not align with a standard 12-month year)
- Calculating opening balances, and making elections such as Small Business Relief or transitional rules for pre-CT assets.
Starting preparation early is not optional advice. It is the difference between a clean filing and a scrambled one. Companies targeting the 30 September 2026 deadline should aim to have financial statements finalised by June 2026 at the latest.
Penalties for Missing Corporate Tax Deadlines in 2026
The penalty framework is specific, escalating, and automatic. There is no grace period and no discretion from the FTA on standard administrative penalties. For the full penalty schedule, see our corporate tax penalties page.
- Late registration carries a flat AED 10,000 fine under Cabinet Decision No. 75 of 2023. It does not matter if your business owes zero tax. The penalty applies the moment the FTA determines you missed your window.
- Late filing is where the real damage builds. AED 500 per month for the first year. AED 1,000 per month after that. No warning, no grace period. The clock starts the day after your deadline passes and does not stop until the return is submitted.
- Miss your payment deadline, and the FTA charges 14% annual interest on the outstanding amount, calculated daily until the full balance reaches their account.
- And if your records are not in order when the FTA requests them, that is a separate violation under the Tax Procedures Law: AED 10,000 for a first offence, AED 20,000 for any repeat within 24 months.
New: Cabinet Decision No. 129 of 2025 (Effective 14 April 2026)
This decision reforms and harmonises the administrative penalty framework across Corporate Tax, VAT, and Excise Tax. From 14 April 2026, penalties across all three tax regimes will follow a more aligned structure.
The intent is to create a unified, predictable, non-compounding framework that replaces the separate penalty schedules that have operated independently since each tax was introduced.
For businesses that currently manage both CT and VAT services obligations, this harmonisation simplifies the compliance landscape, but it also means that the FTA’s enforcement approach across all tax types will become more consistent and more systematic.
Businesses should review the updated penalty matrix and consult a tax consultant in Abu Dhabi to understand how the new framework affects their specific compliance position.
FTA Late Registration Penalty Waiver (CTP006): How to Qualify
This is the single most valuable relief measure available to businesses that registered late for Corporate Tax. Public Clarification CTP006, issued 17 July 2025, applies retroactively from 14 April 2025 and covers penalties incurred from 1 June 2023 onwards.
Eligibility Condition
File your first corporate tax return within seven months (not the standard nine) from the end of your first Tax Period. That is the only condition. No formal application is required. The waiver is applied automatically once the return is filed within the compressed window.
How It Works
If the penalty is unpaid: automatically waived from your EmaraTax corporate tax account.
If the penalty was already paid: AED 10,000 credited to your EmaraTax corporate tax account. Can be applied to future CT payable or refunded.
If a reconsideration request was pending: considered null and void under the waiver.
If a reconsideration was already approved: no further waiver applies (already resolved).
Tax Groups
If a Tax Group files its first return within seven months, the late registration penalty for any member’s first Tax Period is waived.
Examples
Company with Jan–Dec FY ending 31 December 2024: must have filed by 31 July 2025 to qualify.
Company with Apr–Mar FY ending 31 March 2025: must file by 31 October 2025 to qualify.
2026 Relevance
Businesses incorporated in 2025 or 2026 whose first Tax Period ends in 2025 or 2026 can still benefit from this waiver. If your first Tax Period ends 31 December 2025, you must file by 31 July 2026 (seven months) to qualify. This is a live opportunity for newly established businesses.
Critical note: The waiver applies ONLY to the AED 10,000 late registration penalty and ONLY to the first Tax Period. It does not cover subsequent periods or other penalty types.
Documents Required for Your 2026 Corporate Tax Return
- Audited financial statements : mandatory if revenue ≥AED 50 million, or QFZP status, or Tax Group (Ministerial Decision No. 84 of 2025).
- Finalised financial statements : income statement, balance sheet, and cash flow. Mandatory for all filers regardless of revenue level.
- Tax Registration Number (TRN) : your FTA-issued corporate tax registration number.
- General ledger, trial balance, and reconciliations : the accounting data supporting every figure in the return.
- Supporting documents for deductions and exemptions : invoices, receipts, depreciation schedules, and any documentation substantiating claimed deductions.
- Related-party contracts and invoices : for the Connected Persons Schedule and transfer pricing compliance.
- Proof of foreign tax paid : if claiming Foreign Tax Credit under the CT Law.
- Small Business Relief election documentation : if electing SBR for the Tax Period.
A 30 September deadline means your books should be closed by June. Not July. Not “early September.” June.
The gap exists for a reason: audit queries, missing invoices, last-minute adjustments, and the inevitable back-and-forth with your accounting services team.
Companies that leave this to the last month are the ones that file inaccurate returns and spend the next year fixing them.
Don’t Let a Missed Deadline Cost Your Business AED 10,000+
Our ACCA-qualified team in Abu Dhabi handles your full corporate tax compliance: registration and return preparation to filing, payment, and penalty resolution. We manage the deadlines so you don’t have to.
Frequently Asked Questions About UAE Corporate Tax Deadlines
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About the Author
Ameer Hamza (Managing Partner | AH Chartered Accountants)
ACCA | CFA Level I | Certified Financial Modeler (CFM)
Ameer Hamza (ACCA) is the Managing Partner at AH Chartered Accountants. With 7+ years of expertise advising over 50 UAE businesses, he specializes in statutory audits, corporate tax strategy, and corporate financial modeling. Ameer authors our technical content to ensure business leaders receive precise, FTA-compliant guidance directly from an active industry expert.
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