UAE Corporate Tax Calculator: Estimate Your 2026 Liability

Every UAE corporate tax calculator, including this one, does the same arithmetic on figures you supply. The estimate is only as good as the inputs, and the inputs that matter most — taxable income rather than profit, whether you qualify for relief, how much of your free zone income actually qualifies — are the ones businesses most often get wrong. The guide below explains each step of the computation so you can sanity-check the number the tool gives you. If you would rather skip to a definitive answer, our UAE corporate tax filing service produces the real computation from your financial statements.

How Is Corporate Tax Calculated in the UAE?

UAE corporate tax is charged on taxable income, which starts from the accounting profit shown in financial statements prepared under IFRS and is then adjusted. Revenue is irrelevant to the calculation itself — it only matters as a threshold test for Small Business Relief and for certain compliance obligations.

The computation runs in a fixed sequence, and the calculator above follows the same order:

1. Start with accounting profit — net profit before tax from IFRS-compliant financial statements.
2. Add back disallowed expenditure — fines, the non-deductible half of entertainment, and anything else the law refuses.
3. Deduct exempt income — qualifying dividends, participation exemption income, exempt foreign permanent establishment profits.
4. Apply reliefs and elections — Small Business Relief, or the qualifying income split for a Qualifying Free Zone Person.
5. Offset brought-forward tax losses — capped at 75% of the taxable income before offset.
6. Apply the rate bands — 0% on the first AED 375,000, 9% on the balance.

Skip step two and you will understate the bill. Skip step four and you may overstate it dramatically. Both happen constantly, which is why the gap between a spreadsheet estimate and a filed computation is often five figures.

What Are the UAE Corporate Tax Rates for 2026?

There is a single headline rate with a nil band beneath it, plus two special regimes that sit alongside.

Two clarifications worth making because they drive most calculator misuse. The AED 375,000 band is a slice, not a cliff — crossing it does not make your whole income taxable at 9%, only the portion above. And there is no personal income tax in the UAE; a natural person is only within corporate tax scope on UAE business income, and only where turnover from that business exceeds AED 1,000,000 in a calendar year.

How Do You Get from Accounting Profit to Taxable Income?

This is where estimates diverge from reality. Accounting profit is the starting point, not the answer. The adjustments run in both directions.

The single most common error in a self-prepared estimate is treating the profit and loss account as the computation. A business with AED 1,200,000 of accounting profit, AED 40,000 of traffic and municipality fines and AED 60,000 of client entertainment does not have AED 1,200,000 of taxable income — it has AED 1,270,000, and AED 6,300 more tax than the spreadsheet said. Clean, IFRS-compliant accounting and bookkeeping is what makes these adjustments visible rather than discovered later.

Who Can Claim Small Business Relief — and What Does It Save?

Small Business Relief treats an eligible resident taxable person as having no taxable income for the period. It is the most valuable election in the regime for smaller businesses, and the most frequently missed.

Two points the calculator cannot know for you. First, the election is per period and made in the return — missing it in one year forfeits the relief for that year only, but it does forfeit it. Second, the revenue breach is a one-way door: exceed AED 3,000,000 once and the relief is gone for good, even if revenue falls back the following year. Businesses approaching the threshold should model both sides before year end. Our Small Business Relief service covers the eligibility review and the election.

How Does the Calculator Treat Free Zone Companies and QFZPs?

Free zone entities are taxable persons under the corporate tax law, exactly like mainland companies. Being in a free zone confers no exemption. What a free zone entity may access is the 0% rate as a Qualifying Free Zone Person, and only on qualifying income.

QFZP status requires all of the following simultaneously: adequate substance in the zone, income from qualifying activities under Ministerial Decision No. 229 of 2025, audited IFRS financial statements, arm’s length pricing with transfer pricing documentation, and non-qualifying revenue below the de minimis threshold — the lower of AED 5,000,000 or 5% of total revenue.

Note also that QFZP non-qualifying income does not get the AED 375,000 nil band, and a QFZP cannot claim Small Business Relief. Both are modelled in the calculator, and both routinely surprise people who assumed free zone status was the more favourable position by default.

Which Expenses Are Disallowed or Restricted?

Expenditure is deductible where it is incurred wholly and exclusively for the purposes of the business and is not capital in nature. The law then carves out specific categories.

Compensation for damages and payments for breach of contract sit on the deductible side and are frequently confused with fines — the distinction is whether the payment is punitive in character or compensatory. Where a business carries significant related-party debt, the interest restriction becomes the dominant adjustment and needs proper modelling alongside transfer pricing documentation; the calculator does not attempt it.

How Do Tax Losses Reduce Your Corporate Tax Bill?

A tax loss arising in one period can be carried forward and offset against taxable income in later periods, but the offset in any period is capped at 75% of the taxable income before the loss relief. The remaining 25% is taxed, so a brought-forward loss never reduces a liability to nil on its own.

Worked through: a company with AED 1,000,000 of taxable income and AED 900,000 of brought-forward losses can offset AED 750,000 — 75% of AED 1,000,000. Taxable income after offset is AED 250,000, which falls entirely inside the nil band, so the tax is AED 0 and AED 150,000 of loss carries forward. Change the income to AED 2,000,000 and the offset is AED 1,500,000, leaving AED 500,000 taxable and a bill of (500,000 − 375,000) × 9% = AED 11,250.

Carry-forward is subject to continuity conditions on ownership and business activity, and losses cannot be carried back. Losses arising before a business became subject to corporate tax, or in a period when the person was exempt, do not qualify.

Three Worked Examples — Same Rules, Very Different Bills

The arithmetic below is what the calculator performs. Working through it once makes the output easy to check.

Business A would otherwise pay (480,000 − 375,000) × 9% = AED 9,450. Electing Small Business Relief removes it entirely. Forget the election and that AED 9,450 becomes payable for a period that will not come round again.

Business B pays (1,270,000 − 375,000) × 9% = AED 80,550. Had the add-backs been missed, the estimate would have read AED 74,250 — AED 6,300 light, and a difference that would eventually surface as a correction.

Business C has non-qualifying revenue of AED 150,000 against total revenue of AED 4,150,000. The de minimis limit is the lower of AED 5,000,000 or 5% of AED 4,150,000 = AED 207,500, so the test is met and QFZP status holds. The AED 90,000 of non-qualifying taxable income is taxed at 9% with no nil band: AED 8,100. Push non-qualifying revenue to AED 300,000 and the de minimis fails — QFZP status is lost for five periods and the whole AED 1,090,000 becomes taxable, giving (1,090,000 − 375,000) × 9% = AED 64,350 in year one alone.

What Does This Corporate Tax Calculator Not Model?

Being explicit about the limits is more useful than claiming precision. The calculator handles the rate bands, Small Business Relief, the qualifying income split, common add-backs and loss offset. It does not attempt the following, each of which can move a liability materially:

• Transfer pricing adjustments — related-party and connected-person transactions must be at arm’s length. There is no threshold for the arm’s length principle itself; documentation thresholds are separate.
• The general interest deduction limitation rule — a cap on net interest expenditure that dominates the computation for leveraged businesses.
• Tax groups — consolidation changes the entity that computes and pays, and the single AED 375,000 band applies to the group.
• Foreign tax credits and the participation exemption — both require entity-level facts the tool does not collect.
• Domestic Minimum Top-up Tax — Cabinet Decision No. 142 of 2024, a 15% effective rate for large multinational groups.
• Realisation basis elections, depreciation adjustments and provisions — all entity-level choices with lasting consequences.

Treat the output as a planning figure, not a filing figure. Where any of the above applies, the gap between the two is usually the whole point of taking advice. A corporate tax consultant in Dubai will tell you within one call which of these actually bite for your structure.

When Are the UAE Corporate Tax Return and Payment Due?

Both the return and the payment fall due 9 months after the end of the relevant tax period. There is no separate, later payment date — the two coincide.

Penalties are governed by Cabinet Decision No. 75 of 2023, as amended by Cabinet Decision No. 10 of 2024 — the corporate tax instrument, which is distinct from the VAT and Excise penalty regime under Cabinet Decision No. 129 of 2025. The two are frequently conflated, and the rates are not the same. If you have not yet registered, corporate tax registration from AED 199 is the first step; the return obligation follows registration, not revenue.

What Happens If Your Corporate Tax Computation Is Wrong?

Errors found before the filing deadline are corrected by amending and re-filing the return. After the deadline, the route depends on size: a tax difference of AED 10,000 or less is corrected in the next available return, while anything above that requires a Voluntary Disclosure.

The penalty for a voluntary disclosure accrues at 1% of the tax difference per month from the day after the original due date until you file. Where the FTA notifies a tax audit before you have disclosed, a fixed 15% of the tax difference is added on top. The arithmetic strongly favours early correction — we set it out in full in our guide to voluntary disclosure for UAE corporate tax.

The practical implication for anyone using this calculator: if the estimate here differs materially from what you filed, that is worth investigating rather than dismissing. A discrepancy driven by a missed add-back or an unclaimed relief is exactly the kind of thing the FTA’s cross-referencing of returns, VAT filings and audited financials is designed to surface.

How Does Fastlane Turn an Estimate into a Filed Return?

Fastlane Management Consultancy is an FTA-registered tax agent with direct EmaraTax filing authority and an MoE-approved audit practice. We prepare corporate tax computations and returns for mainland and free zone entities across the UAE.

The engagement runs from the financial statements: computation of taxable income with a documented add-back schedule; identification and application of every available relief and election, including Small Business Relief and the QFZP qualifying income analysis; tax loss tracking and offset; preparation and filing of the return through EmaraTax; and support on any Federal Tax Authority query afterwards. Where the books are not yet in a state that supports a computation, we rebuild them first.

Corporate tax filing starts from AED 249, registration from AED 199 and deregistration from AED 399. Where a computation sits alongside ongoing bookkeeping or an audit requirement, we quote the package rather than the pieces. The UAE corporate tax guide covers the wider regime; for a number specific to your business, submit an enquiry and you will normally have a response within one business day.