UAE businesses whose Tax Period ended on 31 December 2025 face a September 30, 2026 deadline for filing their Corporate Tax return and paying any Corporate Tax due. The Federal Tax Authority (FTA) has reminded taxable persons to meet their deadlines to avoid late-filing and late-payment penalties.
What is the UAE Corporate Tax deadline for September 30?
The Federal Tax Authority has reminded businesses that Corporate Tax returns generally need to be filed within nine months from the end of the relevant Tax Period.
For a business whose financial year ended on December 31, 2025, that nine-month period ends on September 30, 2026.
The same deadline applies to paying any Corporate Tax due for that Tax Period.
The FTA has urged taxable persons to submit their returns and make payments within the prescribed timeframe to avoid administrative penalties.
What happens if a business misses the Corporate Tax deadline?
Missing the September 30 deadline can result in financial penalties.
Under the UAE tax penalty rules, a late Tax Return can attract an administrative penalty of AED 500 for each month, or part of a month, during the first 12 months of delay.
If the delay continues beyond 12 months, the penalty increases to AED 1,000 for each month, or part of a month, from the 13th month onwards.
Late payment can also result in penalties, making it important for businesses to deal with both the filing and payment requirements rather than focusing only on submitting the return.
The AED 10,000 figure sometimes associated with UAE Corporate Tax relates to late registration, rather than simply missing the September 30 return deadline.
Who needs to register for UAE Corporate Tax?
UAE Corporate Tax applies to businesses and other taxable persons that fall within the scope of the Corporate Tax Law.
For resident juridical persons, Corporate Tax registration requirements apply regardless of whether the business ultimately has Corporate Tax to pay.
A business having taxable income below the applicable Corporate Tax rate threshold does not automatically mean it can ignore registration or filing requirements.
The FTA has also introduced registration timelines based on when a juridical person was incorporated or otherwise established.
Businesses should therefore check their individual registration deadline rather than relying on a general three-month rule.
How much is UAE Corporate Tax?
The standard UAE Corporate Tax system uses two main rates.
Taxable income of up to AED 375,000 is subject to a 0% Corporate Tax rate.
Taxable income above AED 375,000 is generally subject to a 9% rate.
However, businesses should distinguish between revenue, accounting income and taxable income. Corporate Tax is calculated based on taxable income after applying the adjustments and rules set out under UAE Corporate Tax legislation.
This means a business cannot determine its final Corporate Tax liability simply by looking at its annual turnover.
Does Corporate Tax apply to UAE Free Zone companies?
Being located in a UAE Free Zone does not automatically remove a company from Corporate Tax requirements.
According to the FTA, Free Zone Persons are generally required to register for Corporate Tax and file returns.
A Qualifying Free Zone Person may benefit from a 0% Corporate Tax rate on qualifying income if it meets the conditions under the Corporate Tax rules. Income that does not qualify can be subject to the standard 9% rate.
Free Zone businesses should therefore assess their status and income carefully rather than assuming that operating in a Free Zone means they have no Corporate Tax obligations.
Can small UAE businesses claim Corporate Tax relief?
Small businesses may be able to use Small Business Relief, subject to the eligibility conditions.
The Ministry of Finance has extended the relief to eligible Tax Periods ending on or before December 31, 2029.
The relief is available to eligible UAE resident taxable persons whose revenue does not exceed AED 3 million in the relevant and preceding Tax Periods, subject to the rules.
Importantly, claiming Small Business Relief does not remove the requirement to register and file a Corporate Tax return.
This is particularly relevant for smaller companies that may assume they have no filing obligation because they do not expect to pay Corporate Tax.
The September 30 deadline is relevant to thousands of UAE businesses with Tax Periods ending on December 31, 2025.
For business owners, the key point is that having little or no Corporate Tax to pay does not necessarily mean there is no return to file.
Companies should confirm their Tax Period, registration status, filing obligation and any amount payable through the FTA’s EmaraTax system.
Keeping accurate financial and tax records is also important. UAE Corporate Tax rules generally require relevant records and documents to be retained for at least seven years.
FAQs
When is the UAE Corporate Tax deadline in September 2026?
Businesses with a Tax Period ending on December 31, 2025, generally have until September 30, 2026, to file their Corporate Tax return and pay any Corporate Tax due.
What is the penalty for filing Corporate Tax late in the UAE?
The administrative penalty is AED 500 per month or part of a month for the first 12 months of delay. From the 13th month, it increases to AED 1,000 per month or part of a month.
Do Free Zone companies have to file Corporate Tax returns?
Yes. Free Zone companies are generally required to register and file Corporate Tax returns. Qualifying Free Zone Persons may receive a 0% rate on qualifying income if they meet the applicable conditions.
Can small businesses avoid UAE Corporate Tax?
Eligible businesses can potentially benefit from Small Business Relief, but this does not mean they can ignore their Corporate Tax obligations. Eligible businesses must still meet registration and filing requirements.
Is the AED 10,000 UAE Corporate Tax penalty for missing the September 30 deadline?
No. The AED 10,000 penalty is associated with late Corporate Tax registration. Late filing of a Corporate Tax return has a separate monthly penalty structure.
For businesses with a December 31 year-end, September 30 is therefore an important date to keep on the calendar. Filing on time can help avoid unnecessary penalties and keep the company’s UAE tax records in order.
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