Corporation Tax for a limited company
Type the company's taxable profits for its accounting period. It works out Corporation Tax at the rates for the year from 1 April 2026, with Marginal Relief between £50,000 and £250,000.
Estimate · figures checked 23 Oct 2026 · guidance, not advice · sources
- Short periods cut the limits by days in the period over 365.
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Questions
What are associated companies?
Companies under the same control as yours. They divide the limits between them: with 3 others, the limits are £12,500 and £62,500.
What does it leave out?
Dividends from other companies, which count towards the limits; losses and reliefs; and ring fence profits from oil.
Where the figures come from
The rates in force, checked 23 October 2026:
- Corporation Tax rates: 19% up to £50,000, 25% over £250,000
- Rates and allowances for Corporation Tax: the 3/200 standard fraction for 2026
- Marginal Relief, associated companies and short accounting periods
Updated