Last Updated: 23 September 2026
For businesses in the UAE, the Corporate Tax filing deadline is approaching quickly.
If your business’s financial year ends on 31 December 2025, the Federal Tax Authority (FTA) requires you to submit your Corporate Tax Return and pay any Corporate Tax due no later than 30 September 2026.
The deadline applies to taxable persons, including businesses that may be eligible for Small Business Relief. The FTA has also reminded businesses to prepare their documents and complete their filing within the statutory timeframe.
If your business has not completed its UAE Corporate Tax filing yet, now is the time to check your records, calculate your taxable income and prepare your return.
What Is the UAE Corporate Tax Filing Deadline 2026?
For a taxable person whose Tax Period ended on 31 December 2025, the Corporate Tax Return and any Corporate Tax due must be submitted and paid by:
30 September 2026
The FTA generally requires a Corporate Tax Return and payment of Corporate Tax due within nine months from the end of the relevant Tax Period.
Example
Suppose a UAE company has a financial year running from:
1 January 2025 to 31 December 2025
Its Tax Period ends on 31 December 2025.
Nine months after the end of that Tax Period is:
30 September 2026
Therefore, the company must complete its Corporate Tax filing and pay any Corporate Tax due by that date.
Important: The deadline is not automatically 30 September for every UAE business. The applicable deadline depends on the company’s Tax Period.
Who Needs to File a UAE Corporate Tax Return?
Corporate Tax compliance depends on the taxpayer’s circumstances and status under UAE Corporate Tax legislation.
Taxable persons generally need to:
- Register for Corporate Tax where required
- Maintain appropriate accounting and supporting records
- Determine their Taxable Income
- Prepare their Corporate Tax Return
- Submit the return through EmaraTax
- Pay Corporate Tax due within the applicable deadline
The FTA also states that certain Exempt Persons that are required to register have annual declaration obligations within the applicable statutory timeframe.
Because the rules can differ depending on the legal structure, Tax Period, income and other circumstances, businesses should determine their specific filing obligations rather than assuming that every company follows the same deadline.
Is the 30 September 2026 Deadline Relevant to Your Business?
The 30 September deadline is particularly relevant if your company’s financial year ended on 31 December 2025.
This includes many UAE businesses operating on a calendar-year basis.
For example:
| Financial Year End | General Filing Window |
| 31 December 2025 | By 30 September 2026 |
| 31 January 2026 | Generally within 9 months of the Tax Period end |
| 28 February 2026 | Generally within 9 months of the Tax Period end |
| 31 March 2026 | Generally within 9 months of the Tax Period end |
The exact filing deadline should always be determined based on the company’s actual Tax Period and applicable Corporate Tax requirements.
What Is a UAE Corporate Tax Return?
A Corporate Tax Return is the return submitted to the Federal Tax Authority containing information required to determine a taxpayer’s Corporate Tax position for the relevant Tax Period.
The FTA describes Corporate Tax filing as a self-assessment process. The return is completed and submitted electronically through the EmaraTax platform.
This means businesses should not simply look at their bank balance or total sales and assume that figure is their taxable income.
Accounting information may need to be reviewed and relevant Corporate Tax adjustments considered before the final Taxable Income is determined.
What Documents Should You Prepare Before Corporate Tax Filing?
Preparing your documents early can make the filing process considerably easier.
Depending on your business and circumstances, you may need information such as:
1. Trade Licence
Keep your current trade licence and relevant business registration information available.
2. Corporate Tax Registration Information
Your Corporate Tax registration details should be available when preparing the return.
3. Financial Statements
Your accounting records and financial statements are important for determining the starting point for the Corporate Tax calculation.
4. Revenue Records
Review your business revenue for the relevant Tax Period.
This may include:
- Sales invoices
- Service income
- Other business income
- Relevant supporting records
5. Expense Records
Business expenses should be properly recorded and supported by appropriate documentation.
6. Bank Records
Bank statements and transaction records can help reconcile accounting information and identify missing transactions.
7. Supporting Invoices and Documents
Keep invoices, contracts and other relevant documents that support the figures reported in your accounts and Corporate Tax Return.
8. Related-Party Information
Where applicable, businesses should review transactions involving related parties and connected persons and determine whether additional Corporate Tax requirements apply.
The exact documentation required varies according to the business, transaction type and applicable Corporate Tax rules.
How Do You File Corporate Tax in the UAE?
Corporate Tax Returns are filed electronically through the FTA’s EmaraTax platform.
The FTA’s Corporate Tax Return guidance states that the Tax Return must be completed and filed online through EmaraTax.
A typical process involves:
Step 1: Check Your Corporate Tax Registration
Confirm that your business has the appropriate Corporate Tax registration.
Step 2: Identify Your Tax Period
Confirm the beginning and end dates of the Tax Period for which you are filing.
Step 3: Prepare Your Accounting Information
Review your financial statements, revenue, expenses and supporting records.
Step 4: Determine Taxable Income
Start with the relevant accounting information and make the adjustments required under UAE Corporate Tax rules.
Step 5: Complete the Corporate Tax Return
Enter the required information in EmaraTax and complete the applicable sections.
Step 6: Review the Return
Check the figures, supporting information and declarations before submitting.
Step 7: Submit Through EmaraTax
Submit the Corporate Tax Return electronically.
Step 8: Pay Any Corporate Tax Due
If Corporate Tax is payable, ensure payment is completed within the applicable statutory deadline.
The FTA confirms that Corporate Tax registration, return filing and payment services are available through EmaraTax.
What Happens If You Miss the Corporate Tax Filing Deadline?
Missing a Corporate Tax filing or payment deadline can result in administrative penalties.
The FTA has stated that late submission of a Tax Return or delay in settling Corporate Tax Payable can result in an administrative penalty of:
AED 500 per month, or part of a month, during the first 12 months
and:
AED 1,000 per month, or part of a month, from the 13th month onwards.
Other penalties can also apply depending on the nature of the non-compliance.
For this reason, businesses should not wait until the final day to begin preparing their Corporate Tax Return.
What About Small Business Relief?
One common misunderstanding is that being eligible for Small Business Relief automatically means that a business does not need to file a Corporate Tax Return.
That is not correct.
The FTA has specifically reminded businesses eligible for Small Business Relief that they continue to have Corporate Tax compliance obligations, including registration, filing simplified Tax Returns and maintaining relevant records.
Therefore, if your business believes it qualifies for Small Business Relief, you should still review its filing requirements and submit the appropriate return within the applicable deadline.
Does a Dubai Company Need to File Corporate Tax?
Being located in Dubai does not by itself determine whether a business has a Corporate Tax filing obligation.
Corporate Tax applies under UAE federal legislation, and the relevant requirements depend on factors such as the person’s status, Tax Period, business activity and applicable rules.
This means companies in areas such as:
- Business Bay
- Jumeirah
- Deira
- Bur Dubai
- Jumeirah Lakes Towers (JLT)
- Dubai Silicon Oasis
- Dubai Internet City
- Dubai Multi Commodities Centre (DMCC)
- Dubai International Financial Centre (DIFC)
should assess their Corporate Tax obligations based on their individual circumstances.
What About Free Zone Companies?
Being established in a UAE Free Zone does not automatically mean a company has no Corporate Tax compliance obligations.
Free Zone businesses should determine whether they qualify for any applicable preferential Corporate Tax treatment and whether their income meets the relevant conditions.
Importantly, a business should not assume that being in a Free Zone removes the requirement to register or file.
The applicable rules should be reviewed based on the company’s structure, activities, income and Tax Period.
Corporate Tax Filing Checklist for UAE Businesses
Before submitting your return, consider the following checklist:
Corporate Tax Filing Checklist
☐ Confirm your Tax Period
☐ Check your Corporate Tax registration
☐ Prepare financial statements
☐ Review total revenue
☐ Review business expenses
☐ Reconcile accounting records
☐ Review supporting invoices
☐ Review bank transactions
☐ Check related-party transactions where applicable
☐ Determine Taxable Income
☐ Check whether any applicable relief or special treatment applies
☐ Complete the Corporate Tax Return
☐ Review the return carefully
☐ Submit through EmaraTax
☐ Pay Corporate Tax due, if applicable
☐ Keep supporting records
Frequently Asked Questions About UAE Corporate Tax Filing
What is the UAE Corporate Tax filing deadline in 2026?
For taxable persons whose financial year ended on 31 December 2025, the Corporate Tax Return and Corporate Tax due must be submitted and paid by 30 September 2026.
Is Corporate Tax filing mandatory if no tax is payable?
Businesses should not assume that having no Corporate Tax payable means there is no filing obligation. Taxable persons generally have to submit the required Tax Return within the applicable statutory timeframe.
Can I file my Corporate Tax Return through EmaraTax?
Yes. The FTA states that Corporate Tax Returns are filed online through the EmaraTax platform.
Do businesses eligible for Small Business Relief still need to file?
Yes. The FTA has specifically confirmed that eligible businesses continue to have Corporate Tax compliance obligations, including filing simplified Tax Returns.
What happens if I file late?
Late filing or late payment can result in administrative penalties. The FTA has published specific penalties for late submission and late settlement of Corporate Tax Payable.
Does every UAE business have a 30 September deadline?
No. The applicable deadline depends on the business’s Tax Period. The 30 September 2026 deadline specifically applies to taxable persons whose financial year ended on 31 December 2025.
Can a tax agent file the return for my business?
The FTA’s guidance states that a Tax Return may be submitted by the Taxable Person or another person authorised to do so, including a registered Tax Agent or Legal Representative.
What Should UAE Businesses Do Before 30 September 2026?
If your financial year ended on 31 December 2025, do not leave your Corporate Tax filing until the last minute.
Start by confirming your Tax Period, gathering your accounting records and supporting documents, reviewing your revenue and expenses, and determining the information required for your Corporate Tax Return.
If your accounts are incomplete or you are unsure how the Corporate Tax rules apply to your business, professional assistance can help you organise the required information and complete the filing process.
Need Help With Corporate Tax Filing in Dubai?
Preparing a Corporate Tax Return involves more than simply entering your company’s revenue.
Your accounting records, Taxable Income, applicable adjustments, supporting documentation and filing requirements should all be reviewed carefully before submission.
Intellect Chartered Accountants provides Corporate Tax and accounting support for businesses in Dubai and across the UAE.
If your business has a 31 December 2025 financial year-end, the applicable deadline for this Tax Period is 30 September 2026.
Need assistance with your Corporate Tax Return?
Contact Intellect Chartered Accountants to discuss your UAE Corporate Tax filing requirements.
CTA: Get Corporate Tax Filing Assistance
Official UAE Corporate Tax Sources
For the most authoritative information, businesses should refer to the Federal Tax Authority and UAE Corporate Tax legislation.
The FTA’s September 2026 announcement confirms the 30 September 2026 filing and payment deadline for taxable persons whose financial year ended on 31 December 2025.
The FTA’s Corporate Tax Return guide explains the nine-month filing rule and the requirement to submit returns electronically through EmaraTax.
Source: Federal Tax Authority (FTA), United Arab Emirates.
