Corporation Tax Calculator

Corporation Tax (CT) is charged on the taxable profits of limited companies trading in the UK. From April 2023, the UK introduced a new two-rate system: 19% for small profits and 25% for large profits, with marginal relief for profits between £50,000 and £250,000

The calculator uses the standard published formula for corporation tax. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, British pounds, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.