Corporation Tax Calculator
Estimate the corporation tax due on your company profit.
Corporation tax
£17,450.00
- Profit after tax
- £62,550.00
- Effective rate
- 21.81%
2026/27 rates: 19% up to £50,000, 25% from £250,000, with marginal relief in between. Assumes one company and a 12-month period.
v1.0 · Reviewed September 2026
How this is worked out
Profits up to £50,000 are charged at 19% and profits of £250,000 or more at 25%. Between the two, tax is 25% of the profit less marginal relief of 3/200 × (£250,000 − profit).
Worked example
- Taxable profit £80,000
80,000 × 25% = 20,000, less 3/200 × (250,000 − 80,000) = 2,550
£17,450.00, an effective rate of 21.81%
Assumptions and limits
- Assumes one company with a 12 month accounting period. Associated companies divide the £50,000 and £250,000 limits between them, and short periods reduce them.
- Starts from taxable profit, so allowances, reliefs and loss adjustments must already be applied.