Companies operating in the UAE must submit their corporate tax returns and settle any amounts owed within nine months of closing their tax period, according to guidance issued by the Federal Tax Authority.
For businesses that wrapped up their financial year on December 31, 2025, that window closes on September 30, 2026. The FTA urged Taxable Persons to have their paperwork in order well before that point, framing on-time submission and payment as a fundamental legal duty spelled out in the country’s tax laws. Missing the cutoff exposes filers to administrative penalties.
Firms that qualify for Small Business Relief do not escape the requirement. They still need to lodge returns—albeit in a simplified format—and clear any corporate tax liability by the identical September 30 date.
Documentation carries its own set of obligations. Any company claiming Small Business Relief has to hold onto records detailed enough for the authority to confirm its revenue, taxable income, and whether it genuinely qualifies for the relief. What exactly must be kept depends on the nature of the business, but the FTA points to several standard items: a log of transactions across the tax period, an asset register tracking anything bought or sold, a record of liabilities, and details of shares or ownership stakes held when the period ended.
The obligation to register and file reaches beyond ordinary taxpayers. Exempt persons who fall under registration requirements have to turn in their annual declarations inside the same nine-month timeframe, and they are expected to assemble that documentation within the statutory limit as well.
All of the necessary steps—registering, filing, and paying—can be handled at any hour through the EmaraTax online system. Taxpayers have the option of completing the process on their own or turning to a Tax Agent approved by the FTA, with an approved list published on the authority’s website.
The FTA was explicit that record-keeping is not optional: any business that fails to preserve the documentation mandated under the Tax Procedures Law and the Corporate Tax Law will face administrative penalties, a rule that applies equally to exempt entities, which must retain enough documentation for the authority to validate their exempt standing.

