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Corporation Tax calculator
Use this calculator to estimate Corporation Tax for a UK limited company from 1 April 2023 onwards. The two inputs that usually move the answer most are taxable total profits and the number of associated companies.
Important
This calculator is for guidance only. It assumes a single accounting period from 1 April 2023 onwards, applies the financial year 2023 to 2026 rates and the 3/200 marginal relief fraction, and uses taxable total profits as supplied. It does not account for accounting periods that straddle a rate change, ring-fence profits, oil and gas regimes, banking surcharge, the Patent Box, or other specialist regimes.
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