Bookkeeping · Close · Tax Small businesses, startups & ecommerce Updated September 2026

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UAE corporate tax calculator, with the free zone and small business rules.

Excello's free UAE corporate tax calculator estimates tax at 9% on taxable income above AED 375,000, and applies the rules for Qualifying Free Zone Persons and Small Business Relief.

It gives estimates for planning. The rules were last checked on 17 September 2026 against the Federal Tax Authority and the UAE government portal.

Free. No sign-up. Amounts in AED.

Two profit columns and a tax threshold An ink drawing of two columns of profit beside a ruler: one split by a dashed threshold with the upper part in raspberry, the other with a raspberry slice on top and no threshold.


Estimate your UAE corporate tax

Try it

Choose the type of business, enter taxable income, and tick the Small Business Relief boxes if they apply.

UAE corporate tax estimate

Type of business
Small Business Relief (mainland only)
Income the tax is worked out on
AED 900,000
Estimated corporate tax
AED 47,250
Effective rate
5.25%
How it was worked out
9% on the AED 525,000 above AED 375,000.

An estimate only, starting from taxable income. Rules checked 17 September 2026.

How UAE corporate tax is calculated, with examples

The formula

The corporate tax UAE calculation formula for a mainland business is simple: 9% of taxable income above AED 375,000. The first AED 375,000 is taxed at 0%.

Taxable income is accounting profit adjusted under the Corporate Tax Law, for example for disallowed expenses and exempt income. The calculator starts from that adjusted figure.

Corporate tax = 9% × (taxable income − AED 375,000)
UAE corporate tax calculation examples for a mainland business
Taxable incomeTaxed at 0%Taxed at 9%Corporate taxEffective rate
AED 300,000AED 300,000AED 0AED 00.00%
AED 375,000AED 375,000AED 0AED 00.00%
AED 500,000AED 375,000AED 125,000AED 11,2502.25%
AED 1,000,000AED 375,000AED 625,000AED 56,2505.63%
AED 5,000,000AED 375,000AED 4,625,000AED 416,2508.33%

The UAE corporate tax rate in free zones

Qualifying Free Zone Persons

The UAE corporate tax rate free zone businesses pay depends on whether they are a Qualifying Free Zone Person. If they are, Qualifying Income is taxed at 0% and all other taxable income at 9%, with no AED 375,000 band.

Example: a Qualifying Free Zone Person with AED 2,000,000 of Qualifying Income and AED 60,000 of other taxable income pays 9% on the AED 60,000, which is AED 5,400.

Small Business Relief and the tax period

Relief and timing

Small Business Relief

Treated as having no taxable income

  • The business is resident in the UAE and is not a Qualifying Free Zone Person
  • Revenue is AED 3,000,000 or less in the current tax period and in every earlier one
  • The tax period ends on or before 31 December 2026
  • The business is not part of a multinational group with revenue above AED 3.15 billion
  • Relief is elected in the corporate tax return

UAE corporate tax period calculation

Your financial year, then nine months

The tax period is normally the business's financial year, starting with the first financial year that began on or after 1 June 2023. The return is filed, and the tax paid, within nine months of the period's end.

A financial year ending on 31 December 2025 has a deadline of 30 September 2026.

Source: UAE government portal, corporate tax; FTA, Free Zone Persons bulletin; FTA, Small Business Relief; FTA, return and payment deadline. Last checked 17 September 2026.

UAE corporate tax calculation template for Excel

The workbook

The Excel template follows the same format as the calculator: business type, revenue, taxable income, the Small Business Relief questions and the estimate.

  • Corporate tax sheet. Mainland and free zone inputs with the relief checks.
  • Examples sheet. Five taxable income levels with the tax and effective rate.
  • How to use sheet. The rules and steps in plain English.

Profit figures you can rely on

Where Excello fits

Taxable income starts from accurate accounting profit. Excello keeps your books current all year inside your own QuickBooks, Xero or Odoo and closes each month within five business days as standard, so the figures are ready when the tax period ends.

Excello also prepares the corporate tax registration and return, with free zone and Small Business Relief checks each period. UAE tax services.

Frequently asked questions

What is the corporate tax rate in the UAE?

UAE corporate tax is 0% on taxable income up to AED 375,000 and 9% on taxable income above that. A Qualifying Free Zone Person pays 0% on Qualifying Income and 9% on its other taxable income.

How do I calculate UAE corporate tax?

Subtract AED 375,000 from taxable income and multiply what is left by 9%. On AED 900,000 of taxable income, that is 9% of AED 525,000, or AED 47,250.

Do free zone companies pay corporate tax in the UAE?

A Qualifying Free Zone Person pays 0% on Qualifying Income and 9% on all other taxable income, with no AED 375,000 band. A free zone company that does not qualify is taxed like a mainland business.

What is Small Business Relief?

Small Business Relief lets an eligible UAE business be treated as having no taxable income for a tax period. Revenue must be AED 3,000,000 or less in that period and every earlier one, for periods ending by 31 December 2026.

When is the UAE corporate tax return due?

Within nine months of the end of the tax period, and the tax must be paid by the same date. For a financial year ending on 31 December 2025, that is 30 September 2026.

Is this UAE corporate tax calculator free?

Yes. The calculator and the Excel template are free, with no sign-up. They give estimates starting from taxable income; returns and payments are made through the Federal Tax Authority's EmaraTax portal.

Want the books kept for you?

Tell us about your business and its tax period. We'll come back within one business day with a time for a call and a quote.

  • Books kept current all year
  • Mainland and free zone companies in one view
  • Books closed within five business days as standard

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