Corporate Tax Filing UAE 2026: Deadlines, Documents & Penalties

Corporate tax filing in the UAE is an annual obligation: every registered taxable person declares its taxable income to the Federal Tax Authority through EmaraTax and pays what is due, within nine months of its financial year end. The rate is 0% on taxable income up to AED 375,000 and 9% above, under Federal Decree-Law No. 47 of 2022, which applies to financial years starting on or after 1 June 2023. What trips businesses up is rarely the rate — it is the deadline arithmetic, the documents expected at each revenue tier, and the reliefs that have to be elected rather than assumed. This guide covers all of it, and our corporate tax filing service handles the submission from AED 249. For the wider picture, see the UAE corporate tax guide for businesses.

What Is Corporate Tax Filing in the UAE?

It is the annual submission of a Corporate Tax Return through the FTA's EmaraTax portal, declaring taxable income for the tax period and settling any tax payable. Unlike VAT, which is filed quarterly or monthly depending on the tax period the FTA assigns, corporate tax is filed once a year.

Filing is mandatory even where nothing is payable. There is no nil-return exemption in the UAE regime: a company with a loss, a company below the AED 375,000 threshold, a company that has elected Small Business Relief and a Qualifying Free Zone Person paying 0% all file the same annual return. Registration creates the obligation; profitability does not.

Because the return draws directly on the financial statements, the work that decides whether filing is straightforward happens across the year rather than in the final month. Clean bookkeeping, a maintained fixed asset register and documented related-party transactions turn a filing into a data-entry exercise rather than a reconstruction. See our monthly accounting and bookkeeping services.

Who Must File a Corporate Tax Return in the UAE?

Every taxable person registered with the FTA. That covers mainland companies, free zone entities, foreign companies with a UAE permanent establishment, and natural persons whose business turnover exceeds AED 1,000,000 in a Gregorian calendar year.

Mainland companies means every juridical entity licensed by an emirate authority — the Department of Economy and Tourism in Dubai, and the equivalent authority in each other emirate. Free zone entities file whether or not they qualify for the 0% preferential rate; QFZP status changes what you pay, not whether you file.

Natural persons are the group most often caught out. A freelancer or sole establishment crosses into the regime once business turnover exceeds AED 1,000,000 in a calendar year, and the registration deadline is 31 March of the following year rather than the nine-month filing window. Salary, personal investment income and unlicensed rental income do not count towards the threshold. Individuals near the AED 3 million line should read our guide to Small Business Relief for UAE corporate tax.

Exempt persons — government entities, qualifying public benefit entities, qualifying investment funds and certain extractive businesses — sit outside the charge but generally still have registration or notification obligations to establish and maintain that status. Being exempt is a position you hold and evidence, not one you simply assert.

What Are the Corporate Tax Filing Deadlines in 2026?

Always nine months after the end of the financial year, for both the return and the payment. As at August 2026, the deadline most businesses should be working towards is 30 September 2026, which covers the year ended 31 December 2025. The return for the year ended 31 December 2024 was due on 30 September 2025 and is already late.

That distinction matters more than it sounds, because the two years are easy to conflate and the cost of getting it wrong is months of accrued penalties. Work from your own year end, add nine months, and check the result against the table below.

Two points on tax periods. Your first tax period is the first financial year beginning on or after 1 June 2023, which is why companies with a May or June year end reached their first deadline well before calendar-year companies did. And for a natural person the tax period is fixed as the Gregorian calendar year, so the return for 2025 is due 30 September 2026 regardless of any accounting year they use.

What Documents Do You Need to File, by Revenue Tier?

What the FTA expects scales with revenue. A business under AED 3,000,000 needs little more than a reliable turnover figure and its EmaraTax credentials. Above AED 50,000,000, audited financial statements are mandatory. In between, full financial statements and supporting schedules.

The audit threshold is worth stating precisely because it is commonly misreported. Under Ministerial Decision No. 82 of 2023, a taxable person with revenue exceeding AED 50,000,000 in the tax period must prepare and maintain audited financial statements — and a Qualifying Free Zone Person must do so regardless of revenue. Audits must be carried out by an auditor approved by the Ministry of Economy.

Even in Tier 1, prepare a basic profit and loss. The FTA can request supporting documentation long after a return is filed, and records must be retained for seven years in any case. Free zone entities that need an approved audit can arrange it through our free zone audit service, and related-party positions through transfer pricing in the UAE.

How Do You File Corporate Tax on EmaraTax, Step by Step?

Returns are submitted exclusively through EmaraTax, the FTA's online portal. You need an active account and a corporate tax registration completed before you can file — registration is a separate process, handled at AED 199.

1. Log in to EmaraTax — access the FTA portal with your registered account. If you have not registered for corporate tax, that must be completed first; you cannot file without a corporate tax registration number.
2. Select the correct tax period — in the Corporate Tax section, choose the period you are filing for. It must match the financial year recorded against your registration and your trade licence.
3. Enter the financial data — revenue, gross profit, operating expenses and net profit, exactly as they appear in your financial statements. The portal computes taxable income after the adjustments and reliefs you declare.
4. Apply reliefs and elections — Small Business Relief, qualifying free zone income, exempt income such as qualifying dividends, and the deduction adjustments. Each has its own election within the form and none is applied automatically.
5. Upload supporting documents — financial statements, the audit report where required, and any schedules the system requests. Files should be signed, dated and in an accepted format.
6. Review and submit — check every figure before submitting. After submission, changes go through a separate amendment or voluntary disclosure process. Download and keep the confirmation and the return copy.
7. Pay any tax due — by the same date as the filing, using a card payment or a bank transfer to the GIBAN generated for your account. Late payment attracts 14% per annum, charged monthly.
8. Retain records for seven years — invoices, bank statements, contracts, schedules and the filed return itself. These are what an FTA review will ask for, sometimes years later.

Are You Eligible for Small Business Relief?

If your revenue for the tax period is AED 3,000,000 or less, you are a resident taxable person, and the period ends on or before 31 December 2029, then yes — unless you are a Qualifying Free Zone Person or a member of a multinational enterprise group, both of which are excluded outright. The relief treats you as having no taxable income, so nothing is payable, and it must be actively elected in the return. Full detail in our Small Business Relief guide.

The QFZP exclusion is the one most often missed. A free zone company that qualifies as a QFZP cannot elect Small Business Relief; a free zone company that is not a QFZP — because it has elected out of the regime or does not meet the conditions — can. There is also a trade-off: a tax loss arising in a period for which Small Business Relief was claimed cannot be carried forward. In a profitable year the relief is straightforwardly worth taking; in a loss-making year it usually is not.

What Are the Penalties for Late Filing and Non-Compliance?

Administrative penalties under Cabinet Decision 75/2023, as amended by Cabinet Decision 10/2024, sit on top of any tax owed and accumulate monthly. Late filing costs AED 500 for each month or part month for the first twelve months, then AED 1,000 per month from the thirteenth. Late registration is a fixed AED 10,000.

Late payment is charged separately from late filing, at 14% per annum for each month or part month on the unsettled amount. Filing on time and paying late still costs money, which is why the two should never be treated as separate deadlines — they fall on the same date.

A note on the frequently quoted "up to 50% of unpaid tax" figure: that is not the corporate tax incorrect-return penalty. The corporate tax schedule uses a fixed AED 500 for an incorrect return, with percentage-based penalties arising through the voluntary disclosure mechanism instead. Where an error is identified, disclosing it before the FTA opens a review is treated considerably more favourably than having it found.

Is the Late Registration Penalty Waiver Still Available?

The FTA ran an initiative waiving or refunding the AED 10,000 late registration penalty for taxable persons who submitted their first corporate tax return, or annual declaration, within seven months of the end of their first tax period rather than the usual nine.

The mechanics are worth understanding because the window is narrow and it is measured from the first tax period, not the current one. For a company whose first tax period ended 31 December 2025, seven months runs to 31 July 2026 — and for one whose first period ended earlier, the window has already closed.

If you registered late and have not yet filed, check eligibility before you file rather than after, because filing outside the seven-month window is what forecloses it. Because initiatives of this kind are time-limited and can be varied, confirm the current status and your eligibility with the FTA. If you are still unregistered, that is the first step: corporate tax registration from AED 199.

How Does Corporate Tax Filing Work for Free Zone Companies?

Free zone companies are taxable persons and file the same annual return as anyone else. What differs is the rate applied to their income. A Qualifying Free Zone Person pays 0% on qualifying income and 9% on everything else, and both streams have to be identified and reported separately in the return.

QFZP status is not a licence attribute; it is a set of conditions tested every period. The person must derive qualifying income from qualifying activities, satisfy the de minimis requirement, maintain adequate substance in the free zone, comply with the arm's length principle and hold transfer pricing documentation, prepare audited financial statements, and not have elected to be subject to the standard rates. Compare zones with our free zone comparison tool.

Two of those deserve emphasis. The de minimis threshold is non-qualifying revenue not exceeding the lower of AED 5,000,000 or 5% of total revenue — a percentage cap and an absolute cap, whichever binds first. And the audit requirement applies to every QFZP regardless of revenue: the AED 50,000,000 threshold is the general audit rule, not the free zone one. A AED 4,000,000 free zone company claiming QFZP status still needs audited financials. Arrange them through our free zone audit service.

What Are the Ten Most Common Corporate Tax Filing Mistakes?

Most filing problems are procedural rather than technical, and almost all of them are visible in advance. These are the ones we see repeatedly across mainland and free zone returns.

On point eight in particular, the add-back schedule is where returns most often go wrong in substance rather than process. The interaction between disallowed expenditure, the interest limitation and the realisation-basis election is worked through in our UAE corporate tax guide.

How Does Fastlane File Your Return From AED 249?

Send the financial records, we identify your tier and deadline, prepare the computation including any reliefs you qualify for, and submit through EmaraTax. Pricing is a flat fee by revenue band with no hidden extras, and Small Business Relief advisory is included at every tier.

Where a return is already overdue, the first job is stopping the escalation rather than perfecting the file. Registration comes first if it has not been done, then the outstanding returns in order, then the current one. Businesses winding down should handle both regimes together: CT deregistration from AED 399, VAT filing from AED 149 and VAT deregistration from AED 499.

Key Terms and Quick Reference

The figures that matter most, followed by the vocabulary the return and the FTA correspondence use.