Your first UAE corporate tax return: deadlines, documents and filing on EmaraTax

The UAE introduced corporate tax for financial years starting on or after 1 June 2023, which means most companies are now facing their first return. The mechanics are not complicated, but the deadlines are strict and the penalties for getting registration or filing wrong are real. The single biggest mistake we see is treating the return as a year-end event rather than something your bookkeeping should be built for from day one.

This piece covers the timeline, the documents, and the filing steps, so your first return is a formality rather than a fire drill.

First, make sure you are registered

Corporate tax filing starts with registration on EmaraTax, the FTA's online portal. Registration is separate from filing and has its own deadline, and missing it carries an administrative penalty. Nearly every business needs to register, including free zone companies and, in most cases, companies that expect to pay 0%, because registration is about being in the system, not about whether you owe tax.

If you are not yet registered, do that first. If you are unsure whether you slipped past your registration deadline, our guide to the UAE corporate tax penalty waiver explains the relief the FTA has offered for late registration and who qualifies.

When your first return is due

The corporate tax return is due, and any tax payable must be paid, within nine months of the end of your tax period. Your tax period is usually your financial year.

So a company with a financial year ending 31 December 2024 has a first tax period of the 2024 calendar year and must file and pay by 30 September 2025. A company with a year ending 31 March 2025 files by 31 December 2025. There is no separate payment date; filing and payment share the nine-month deadline. You file once per year, and there are no provisional or advance payments in the UAE system.

Work backwards from that date. If your books need two months to close and review, your accounting has to be current with time to spare, not reconstructed in the final weeks.

What you need to file

The return is built from a proper set of accounts, so the real work is in the bookkeeping, not the form. You will need financial statements prepared under IFRS (smaller businesses can use the cash basis below a revenue threshold), your revenue and expense records, details of any adjustments the corporate tax law requires, and information on related-party transactions if you have any.

Two areas catch people out. The first is transfer pricing: if you transact with related parties, the return asks for a disclosure and you may need supporting documentation. The second is knowing which reliefs and adjustments apply to you, such as small business relief, the 0% band on the first AED 375,000 of taxable income, or free zone treatment. Getting these right is the difference between an accurate return and an FTA query.

Filing on EmaraTax, step by step

Filing happens inside EmaraTax. In outline, you log in, open the corporate tax return for the relevant period, and work through the schedules: accounting income, the adjustments that convert accounting profit to taxable income, any reliefs you are claiming, and related-party disclosures. The portal calculates the tax, you review it against your own numbers, and you submit and pay.

The FTA's audit-selection tends to cross-reference your corporate tax return against your VAT filings, so inconsistencies between the two are a common trigger for questions. Reconciled books that tell the same story across both taxes are your best protection, which is why we treat clean financial infrastructure as the foundation of the whole exercise.

The penalties that make this worth getting right

Late or incorrect filing carries administrative penalties, and under-reporting taxable income can be expensive. The lesson is not to fear the FTA but to respect the deadline: register on time, keep your books current, file within the nine months, and pay what the return shows. Companies that do this treat the return as a half-day task. Companies that do not pay their accountant to rebuild a year of records under deadline pressure, and still carry audit risk.

Frequently asked questions

When is my first UAE corporate tax return due? Within nine months of the end of your first tax period. For a calendar-year 2024 company, that is 30 September 2025.

Do I file even if I owe no tax? Yes. If you are registered for corporate tax, you file a return for the period, including if your taxable income is below AED 375,000 or you qualify for 0% treatment.

Is registration the same as filing? No. You register once on EmaraTax to enter the system, then file a return each year. They have separate deadlines and separate penalties.

Do I need audited accounts? It depends on your size and structure; some companies must have audited financial statements, and free zone persons claiming 0% generally do. Our guide on which UAE companies need an audit covers the thresholds.

Can I file it myself? You can, through EmaraTax, but the accuracy of the return depends entirely on the quality of your accounts and your treatment of adjustments and reliefs. Most companies have their accountant prepare or review it.

This is general information, not tax advice. Corporate tax deadlines, thresholds and penalties are set by the FTA and can change; confirm the current rules and your specific position with a qualified adviser before filing.