The corporate tax return deadline 2026 for most companies in the UAE is 30 September 2026. It applies to every company whose financial year ended on 31 December 2025, because the law allows nine months from the end of the tax period to file the return and pay the tax. Miss it and you face late filing penalties: AED 500 for every month of delay during the first twelve months, then AED 1,000 per month after that, plus an annual penalty of 14% on any tax not paid on time.
In this guide, a corporate tax lawyer in Dubai from AWADH ALMHEIRI LAW FIRM AND LEGAL CONSULTATIONS explains in plain, practical terms who must file a corporate tax return before 30 September 2026, how much the penalty for not filing a tax return is, what to do if you have already missed the deadline, how to challenge a penalty or apply for a waiver, and the new rule that starts the very next day: supplier verification before deducting input VAT from 1 October 2026.
What is the corporate tax return deadline 2026 and how much are the late penalties?
Under the Federal Decree-Law on the Taxation of Corporations and Businesses, the corporate tax return must be filed with the Federal Tax Authority within nine months of the end of the tax period, and the tax due must be paid within the same period. The corporate tax return deadline 2026 therefore depends on your company's financial year:
30 September 2026
Financial year ending 31 December 2025
The vast majority of companies in Dubai and the UAE
31 December 2026
Financial year ending 31 March 2026
Common among free zone companies
31 March 2027
Financial year ending 30 June 2026
Second return for those whose first tax period began in July 2023
The Federal Tax Authority confirmed in August 2026 that taxable persons must file their returns and pay the corporate tax due no later than 30 September 2026, with no routine extensions. So the real question is not only "when is the corporate tax return deadline" but "is my company ready weeks before it, not days".
Who must file a corporate tax return before 30 September 2026?
The obligation to file a corporate tax return is not limited to large companies or to those with tax payable. Every taxable person registered with the Federal Tax Authority must file, including:
Mainland companies: limited liability companies, joint stock companies and licensed professional firms in Dubai and the other emirates.
Free zone companies, including a Qualifying Free Zone Person benefiting from the 0% rate on qualifying income; being exempt from the tax does not exempt you from filing.
Natural persons carrying on a business in the UAE whose annual turnover exceeds AED 1 million.
Businesses using Small Business Relief (revenue not exceeding AED 3 million), which must file a simplified return within the statutory period.
Branches of foreign companies and permanent establishments of non-residents in the UAE.
A point many overlook
A company set up in 2025, or that relocated to Dubai that year, may have a first tax period longer or shorter than a full year depending on its licence date, so its first return may not be due on 30 September 2026. Check the tax period registered on the EmaraTax platform and do not assume it matches the calendar year.
Do I have to file even if no tax is due?
Yes, and this is the mistake that costs small companies the most avoidable penalties. The obligation to file a corporate tax return is completely separate from the obligation to pay. A company whose taxable income does not exceed AED 375,000 pays 0%, but it must still file on time; otherwise the full penalty for not filing a tax return applies even though the tax due is zero.
The rule in short
The late filing penalty is imposed for "not filing" itself, not on the amount of tax. Zero tax does not mean zero penalty.
Late penalties for filing the corporate tax return and paying the tax
The Cabinet Decision on administrative penalties for violations related to the Corporate Tax Law sets out a clear schedule. What matters most to a business owner is that the late filing penalty and the late payment penalty are two separate violations imposed together, not just the larger of the two:
Late filing penalty for the corporate tax return
AED 500 for each month or part of a month during the first twelve months of delay, then AED 1,000 for each month or part of a month from the thirteenth month onwards. The penalty runs from the day after the deadline and on the same date every month thereafter, so being one day late after 30 September 2026 means the full first-month penalty.
Late payment penalty for corporate tax
A monthly penalty at 14% per annum, for each month or part of a month, on the amount of tax payable that has not been settled, from the day after the payment due date until full settlement.
Incorrect return penalty
AED 500 if the company files an incorrect return, unless it corrects it before the filing deadline. Corrections after the deadline are made through a voluntary disclosure and may carry a percentage-based penalty on the tax difference.
Other related penalties
AED 10,000 for late registration for corporate tax, and AED 10,000 for failing to keep the required records and documents.
A practical example: a Dubai company with AED 100,000 of tax due files and pays four months after 30 September 2026. It bears a late filing penalty of AED 2,000 plus a late payment penalty of roughly AED 4,670 for the four months, more than AED 6,600 for a delay that could have been avoided.
I missed the corporate tax return deadline: what do I do now?
Being late does not mean the door is closed; it means every extra day raises the cost. This is the path we recommend to clients of AWADH ALMHEIRI LAW FIRM AND LEGAL CONSULTATIONS once the deadline has passed:
Filing
File the return immediately, even if the figures are not perfect
The filing penalty stops accruing the moment you file. A correct return filed late is far better than waiting another month to finish the review, because each month or part of a month counts as a full penalty.
Payment
Pay the tax due, or the part you are sure of
The 14% penalty is calculated only on the unpaid amount. Paying the confirmed portion stops it accruing on that portion, and bank transfers to the Authority can take days to be credited, so do not wait for the last day.
Correction
File a voluntary disclosure if you discover an error after filing
The voluntary disclosure is the legal tool for correcting a return after the deadline. Making it before the Authority discovers the error reduces penalties and protects the company from any suspicion of tax evasion.
Reconsideration
Apply for reconsideration of the penalty within 40 business days
If there was a legitimate reason for the delay, the company may, under the Federal Decree-Law on Tax Procedures, ask the Authority to reconsider the penalty decision within 40 business days of being notified. The request must be reasoned and in Arabic.
Objection
Object before the Tax Disputes Resolution Committee
If reconsideration is refused, an objection is filed with the Tax Disputes Resolution Committee within 40 business days of notification of the Authority's decision, provided you first applied for reconsideration and paid the full tax in dispute.
Litigation
Bring a tax claim before the competent court
Tax disputes are not admissible before the court unless the objection was first brought before the Committee, so the order of these steps is a legal condition, not a procedural option. This is exactly where a tax lawyer in Dubai makes the difference.
How to apply for a waiver or instalment plan for a corporate tax penalty
Alongside the objection route, the Federal Decree-Law on Tax Procedures allows a dedicated committee at the Federal Tax Authority to approve the payment of an administrative penalty in instalments, or its full or partial waiver or refund, according to the controls issued by the Cabinet. A reconsideration request and an instalment or waiver request can be submitted to the Authority at the same time.
In practice, waiver requests succeed when the cause of the delay was beyond the company's control and documented: death or illness of the person responsible for the tax file, documented technical failures on the Authority's platform, force majeure, or clear good faith such as voluntary filing and payment before any action by the Authority. Delay caused by negligence or incomplete accounts is rarely accepted, which is why the legal drafting and documentation of the request decides its outcome.
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What we see in most tax penalty files is a company treating the penalty as a fate not open to discussion, when the law actually gives it three consecutive stations: reconsideration, then the Committee, then the court. The problem is that these stations are time-limited with short deadlines, and whoever misses the first 40 business days loses the whole path.
Lawyer Awadh Almheiri
The new rule from 1 October 2026: supplier verification before deducting input VAT
The day after the corporate tax return deadline 2026, the Federal Tax Authority Decision on the measures, procedures and conditions taxable persons must follow to verify the validity and integrity of supplies before deducting input tax, issued on 22 July 2026, comes into force. The Decision implements the amendment to the Federal Decree-Law on Value Added Tax that allows the Authority to deny an input tax deduction where the supplies form part of a chain connected to tax evasion and the taxable person knew, or should reasonably have known, of that connection.
In practice: a valid tax invoice is no longer enough on its own to recover VAT. A company that cannot prove it verified its supplier may be treated as one that "should have known", and lose the deduction entirely. The most important things your company must do before 1 October 2026:
Verify every new supplier and every supplier not verified in the previous twelve months: identity, incorporation, the identity of its representative, and the existence of a real place of business.
Enhanced checks for major suppliers: where supplies from one supplier exceed AED 375,000 within 12 months, or are expected to, you must obtain written confirmation from a bank licensed in the UAE that the supplier holds a bank account, and screen its reputation and risk indicators.
A narrow exception: supplies whose consideration is below AED 10,000 excluding VAT are exempt from the measures, unless total supplies from the same supplier exceed AED 100,000 within 12 months.
A written policy naming the persons responsible for implementing, reviewing and supervising the verification procedures, with supporting documents retained for each verification and produced to the Authority on request.
Why this concerns the business owner, not only the accountant
A denied input tax deduction is not just a financial loss; a supply linked to a tax evasion chain can drag the company into a full audit and legal liability. Preparing the verification policy and drafting supplier contracts that oblige suppliers to provide verification documents is legal work before it is accounting work.
The legal deadlines you must remember
30 September 2026
Deadline to file the corporate tax return and pay the tax
For companies whose financial year ended on 31 December 2025
1 October 2026
Supplier verification rules take effect
Before deducting input VAT
40 business days
Time limit for reconsideration, then for objection before the Committee
Counted from notification of the Authority's decision at each stage
Practical tips from a tax lawyer in Dubai before 30 September 2026
Check your tax period today
Log in to EmaraTax and confirm the start and end dates of your registered tax period; the nine months run from that date, not from the licence date.
Close the financial statements weeks before the deadline
Fixing errors before filing costs nothing; after the deadline it requires a voluntary disclosure with a penalty. Companies with revenue above AED 50 million need audited financial statements, and an audit is not completed in two days.
File, then pay; do not wait for both to be ready
Filing and payment are separate obligations with separate penalties. If the return is ready, file it; if the money is available, pay it, even if the other is late.
Review supplier contracts before 1 October
Add a clause obliging the supplier to provide verification documents and update them annually, and a clause dealing with the consequences if the Authority denies the input tax deduction due to the supplier's failure.
Do not pay the penalty before taking legal advice
Many corporate tax penalties can be reconsidered or waived if the request is filed on time and properly supported. Consult a corporate tax lawyer in Dubai before the 40 business days from notification expire.
Legal references
Federal Decree-Law No. 47 of 2022 on the Taxation of Corporations and Businesses, as amended.
Federal Decree-Law No. 28 of 2022 on Tax Procedures.
Federal Decree-Law No. 8 of 2017 on Value Added Tax, as amended.
Cabinet Decision No. 75 of 2023 on administrative penalties for violations related to the application of the Corporate Tax Law.
Federal Tax Authority Decision No. 13 of 2026 on the measures, procedures and conditions for verifying the validity and integrity of supplies before deducting input tax.
Is your company ready for 30 September 2026? Talk to a corporate tax lawyer in Dubai before the deadline passes
AWADH ALMHEIRI LAW FIRM AND LEGAL CONSULTATIONS reviews your company's position on the corporate tax return, handles reconsideration and waiver requests for late penalties, objections before the Tax Disputes Resolution Committee, and prepares your supplier verification policy and supply contracts before 1 October 2026.
Tax legal advice in Dubai and across the UAE
Frequently asked questions about the corporate tax return deadline 2026
QWhat is the corporate tax return deadline 2026 in the UAE?
30 September 2026 for companies whose financial year ended on 31 December 2025, because the statutory period is nine months from the end of the tax period. If your financial year ends on another date, your deadline is nine months from that date.
QHow much is the late filing penalty for the corporate tax return?
AED 500 for each month or part of a month during the first twelve months, then AED 1,000 per month from the thirteenth month. It is imposed independently of the late payment penalty.
QHow much is the late payment penalty for corporate tax?
14% per annum on the unpaid tax amount, calculated for each month or part of a month from the day after the due date until payment.
QDoes the Federal Tax Authority grant extensions to the corporate tax return deadline?
There are no routine extensions. The penalty starts the day after the deadline, and the available route afterwards is a reconsideration or waiver request if there was a legitimate reason for the delay.
QMust a free zone company file a corporate tax return?
Yes. A Qualifying Free Zone Person benefits from 0% on qualifying income but remains obliged to register and file the return by the same deadline.
QIs a penalty imposed if the tax due is zero?
Yes. The penalty for not filing a tax return is tied to filing, not to the amount of tax. A company with income not exceeding AED 375,000 pays the full penalty if it does not file on time.
QHow do I challenge a corporate tax penalty?
By a reasoned reconsideration request in Arabic to the Authority within 40 business days of notification, then an objection before the Tax Disputes Resolution Committee within 40 business days of the Authority's decision after paying the tax in dispute, then a claim before the competent court.
QCan a corporate tax penalty be waived or paid in instalments?
Yes. A committee at the Federal Tax Authority may approve instalments or a full or partial waiver of administrative penalties under the prescribed controls; the request is filed with documented grounds.
QWhat are the supplier verification rules starting 1 October 2026?
FTA Decision No. 13 of 2026 requires businesses to verify the identity and premises of suppliers and the integrity of each supply before deducting input tax, with enhanced checks for suppliers whose supplies exceed AED 375,000 within 12 months; otherwise the Authority may deny the deduction.
QDo I need a tax lawyer in Dubai or is my accountant enough?
The accountant prepares the return. Reviewing legal obligations, reconsideration and waiver requests, objections before the Committee, tax litigation, and drafting supplier contracts and verification policies are legal work handled by a corporate tax lawyer in Dubai.
Legal disclaimer
The content of this blog is intended for legal awareness and community education only and does not constitute legal or tax advice for any particular case. Deadlines and penalties vary according to each company's tax period and circumstances, so we recommend contacting AWADH ALMHEIRI LAW FIRM AND LEGAL CONSULTATIONS for accurate legal advice before taking any action. In the event of any discrepancy between this translation and the original Arabic text, the Arabic text shall prevail.
Corporate tax lawyer in Dubai
AWADH ALMHEIRI LAW FIRM AND LEGAL CONSULTATIONS in Dubai provides tax lawyer services in Dubai to business owners and investors: reviewing compliance with the corporate tax return deadline 2026, challenging late penalties and seeking their waiver before the Federal Tax Authority and the Tax Disputes Resolution Committee, representation in tax claims before the Dubai courts, and preparing supplier verification policies and supply contracts for companies in Dubai, the free zones and the Dubai International Financial Centre.
Tax lawyer in the other emirates
The firm's services in corporate tax, late penalties and tax disputes extend to Abu Dhabi, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah and Fujairah, including free zone companies in those emirates and Abu Dhabi Global Market, with legal representation before the Federal Tax Authority, the Tax Disputes Resolution Committees and the federal and local courts.
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