Tax Tool
Marginal Relief Calculator
The flat 19% Corporation Tax rate is a thing of the past. If your company’s profit sits between £50,000 and £250,000, you are subject to the sliding marginal rate, effectively taxing profits in this band at 26.5%.
Enter your projected profit to forecast your exact 2026 Corporation Tax bill. Identify your effective tax rate and plan your expenditure strategically with tax planning support before your year-end.
- Precise calculation of HMRC's 3/200 marginal fraction.
- Instantly see your effective blended tax rate.
£
£0
£300k+
Total Corporation Tax
£28,050
Marginal Relief Band
Marginal Relief Applied
£1,950
Effective Tax Rate
23.38%
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Assumes no associated companies. For a precise calculation tailored to your group structure, please consult us.