Calculating Corporate Tax Liability in the UAE — A 2026 Step-by-Step Guide

Every UAE business now lives with corporate tax, and the single most important number in the whole system is your corporate tax liability — the amount you actually owe the Federal Tax Authority (FTA) after all adjustments and reliefs. Getting it right starts long before you open EmaraTax: it starts with clean, IFRS-compliant accounts and a correct understanding of how accounting profit becomes taxable income. Corporate tax took effect for financial years starting on or after 1 June 2023 under Federal Decree-Law No. 47 of 2022. Whether you are a mainland LLC, a free zone company, a tax group, or a freelancer over the AED 1,000,000 turnover threshold, the mechanics of arriving at your liability are the same — only the reliefs and elections differ. When you would rather hand it over, our corporate tax filing service from AED 249 handles it end to end.

How is corporate tax liability calculated in the UAE?

Corporate tax liability is calculated by applying the tax rates to your taxable income — not to your revenue or even your accounting profit directly. The formula is: accounting net profit, plus non-deductible expenses added back, minus exempt income and reliefs, equals taxable income — then 0% on the first AED 375,000 and 9% on everything above.

The starting point is always the net profit or loss in your financial statements prepared under IFRS (or IFRS for SMEs). From there, the Corporate Tax Law requires a series of adjustments so that the tax base reflects taxable, rather than purely accounting, results. The most common are adding back disallowed costs, removing exempt income, applying tax losses carried forward from earlier periods, and pricing related-party transactions at arm’s length.

What are the UAE corporate tax rates in 2026?

UAE corporate tax is charged at 0% on taxable income up to AED 375,000 and 9% on taxable income above AED 375,000. The AED 375,000 is not a separate tax-free allowance sitting outside your return — it is a 0% band inside the same calculation, so you still declare all your income and the 0% simply applies to the first slice.

A third rate exists for the largest groups. Under the OECD Pillar Two rules, multinational groups with consolidated global revenue of at least EUR 750 million are subject to a 15% Domestic Minimum Top-up Tax (DMTT) for financial years starting on or after 1 January 2025. Most UAE SMEs will never touch this; it is aimed squarely at large MNE groups.

How do you get from accounting profit to taxable income?

Taxable income is your accounting net profit adjusted for the specific items the Corporate Tax Law treats differently from accounting standards. In practice this means starting with the IFRS profit figure and making a short list of additions and deductions before any rate is applied.

The four families of adjustment you will meet most often are: non-deductible expenditure (added back), exempt income (removed), related-party transactions re-priced to arm’s length under transfer pricing rules, and tax losses carried forward from prior periods (post-June 2023 losses can offset up to 75% of taxable income in a later year). If you have foreign branches, a Foreign Permanent Establishment exemption can also remove their results from the base.

This is why bookkeeping quality matters so much: the cleaner your accounting and bookkeeping, the smaller the risk that an adjustment is missed and the FTA later reassesses your liability. Entities with revenue at or above AED 50,000,000 must file audited financial statements; below that, reviewed statements are generally acceptable, though audited accounts are strongly advised where you have related-party dealings or claim QFZP status. Those related-party dealings also bring transfer pricing documentation into scope.

Which expenses are non-deductible or only partly deductible?

Some costs in your accounts are added back because the law does not allow them as deductions. Fully non-deductible items include administrative fines and penalties, bribes, dividends and profit distributions you pay out, donations to non-qualifying recipients, and corporate tax itself. Client and staff entertainment is only 50% deductible, so half is added back.

Interest is capped: net interest expense is generally deductible only up to 30% of EBITDA, subject to safe harbours, with a de minimis threshold of AED 12,000,000 of net interest below which the cap does not bite. Anything above the cap is disallowed for the period, and may be carried forward. Getting these add-backs right is where a professional corporate tax consultant earns their fee — a missed add-back understates your liability and invites penalties on review.

What income is exempt from corporate tax?

Certain income is removed from the tax base entirely. The main exemptions are dividends and profit distributions from UAE-resident companies, dividends and capital gains from qualifying shareholdings under the Participation Exemption, and the income of a foreign permanent establishment where the FPE exemption is elected.

The Participation Exemption typically applies where you hold at least a 5% ownership interest for a minimum period and the participation meets the subject-to-tax and other conditions. When exempt income has been included in your accounting profit, you deduct it when computing taxable income — otherwise you would pay 9% on money the law never intended to tax. There is no UAE personal income tax, so salary, personal investment returns and personal real estate income of individuals sit outside corporate tax altogether unless they arise from a licensed business activity.

How does Small Business Relief cut your liability to zero?

Small Business Relief (SBR) lets a UAE-resident business with revenue of AED 3,000,000 or less elect to be treated as having zero taxable income — so its corporate tax liability is nil, regardless of actual profit. It is available for tax periods ending on or before 31 December 2029, and it must be actively elected on each year’s return; it is never automatic.

Three catches shape how you use it. First, the AED 3,000,000 test is cumulative: if your revenue exceeded AED 3,000,000 in any period since June 2023, you are permanently disqualified for all future periods, even if revenue later falls. Second, the relief is an annual election — and if you do not elect it for a tax year in which you were eligible, you cannot claim it for future tax periods either, so a skipped or unfiled return closes the door for good. Third, electing SBR forfeits the tax losses and disallowed interest of that period, so run the trade-off before you tick the box. See our dedicated guide to Small Business Relief for corporate tax for the full eligibility test.

How is corporate tax calculated for a Qualifying Free Zone Person?

A Qualifying Free Zone Person (QFZP) pays 0% on qualifying income and 9% on non-qualifying income. It is not a blanket exemption — free zone companies are taxable persons and must register and file like everyone else. To keep the 0% rate, a QFZP must maintain adequate substance in the free zone, earn qualifying income under the relevant Ministerial and Cabinet Decisions (including Ministerial Decision No. 229 of 2025 [VERIFY]), stay within the de minimis limit, and prepare audited IFRS financial statements.

The de minimis threshold is important: non-qualifying revenue must not exceed the lower of AED 5,000,000 or 5% of total revenue. Breach it, and the company loses QFZP status and is taxed at 9% on all income for that period and typically the following four. A QFZP also cannot elect Small Business Relief — the two regimes are mutually exclusive, so free zone owners must choose their route deliberately, and the audited accounts a QFZP claim depends on come from a proper free zone audit.

What is the CT 300 return and its main parts?

The corporate tax return (the CT 300) is the annual filing every taxable person submits through EmaraTax to declare taxable income and pay tax. It is self-assessment based, so the responsibility for getting the calculation right sits with the business. The parent company files a single consolidated return for a tax group; individual members do not file separately.

The return is built in sections that mirror the calculation above — taxable person information, elections, an accounting schedule, adjustments and exempt income, reliefs, other adjustments, and finally the tax liability and tax credits, before review and declaration. Supporting schedules cover the free zone position, foreign tax credits, related-party transactions, and the Participation Exemption. Make sure pre-populated data in EmaraTax is correct before you file — stale profile data is a common cause of errors.

Which elections can reduce your corporate tax liability?

Several elections let you shape the tax base, and some are irreversible — so decide your position before you start the return. The main ones are the Realisation Basis election (disregards unrealised gains and losses), the Transitional Rules election (excludes pre-corporate-tax gains on assets owned before your first tax period), the Small Business Relief election, the Foreign Permanent Establishment exemption, and reliefs for transfers within a Qualifying Group and Business Restructuring.

The right combination depends on your assets, group structure and profit profile. A company sitting on large unrealised property gains may benefit from the realisation basis, while a group reorganising ownership can use qualifying-group transfer relief to move assets without triggering tax. Because several of these are one-way doors, this is a decision worth taking with a corporate tax adviser rather than in the EmaraTax portal at the deadline.

When is corporate tax due and what are the penalties?

The corporate tax return must be filed — and any tax paid — within 9 months of the end of your financial year. For a calendar-year business with a 31 December 2025 year-end, the deadline is 30 September 2026. Filing and payment are a single obligation: you cannot file without paying, or pay without filing.

Penalties run in three parallel tracks and are not capped at a single maximum. Late registration is AED 10,000. Late filing is AED 500 per month for the first 12 months, then AED 1,000 per month (Cabinet Decision No. 75 of 2023, as amended by No. 10 of 2024). Late payment attracts interest of 14% per annum on the unpaid tax, charged monthly, under the corporate tax penalty framework. VAT and excise penalties sit under a separate authority, Cabinet Decision No. 129 of 2025 (effective 14 April 2026), and should not be conflated with the corporate tax penalties. Even a nil return or an SBR/QFZP 0% position must be filed on time.

If you registered late, the FTA’s penalty-waiver initiative can cancel the AED 10,000 registration penalty entirely — but only if you file your first return within seven months of the end of your first tax period. Talk to us quickly if that applies to you. [VERIFY current window]

A full worked example, start to finish

Consider a Dubai mainland trading LLC with a 31 December 2025 year-end. Its financial statements show a net accounting profit of AED 1,200,000. During the year it paid AED 15,000 in traffic and administrative fines, spent AED 60,000 on client entertainment, and received AED 80,000 in dividends from a UAE subsidiary. Here is how its corporate tax liability is built.

Notice how the three adjustments moved the liability: without them, 9% of (1,200,000 − 375,000) would have been AED 74,250. The add-backs raised the base while the exempt dividend lowered it, netting to AED 71,100. Miss the dividend exemption and you overpay; miss the fines add-back and the FTA reassesses. This is precisely the kind of calculation our corporate tax filing service handles end to end — and for a business under AED 3,000,000 revenue, electing Small Business Relief instead would have brought this liability to AED 0 for the period. You can test your own numbers first with the UAE corporate tax calculator.

Key terms used in this guide

Deadlines move fast, and the calculation rewards preparation rather than a last-minute scramble. For the wider framework behind each step, read the full corporate tax guide for UAE businesses, and keep your VAT position aligned through accurate VAT filing — the FTA cross-checks the two.