United Kingdom Income Tax Calculator 2025
United Kingdom applies 3 progressive tax brackets ranging from 20% to 45% in 2025. Enter your taxable income to see tax owed per bracket, your effective rate and your marginal rate.
Calculator
United Kingdom income tax brackets (2025)
| Taxable income (GBP) | Marginal rate |
|---|---|
| £0 – £37,700 | 20% |
| £37,700 – £112,570 | 40% |
| £112,570 – and above | 45% |
Tax-free allowance: £12,570. Employee social contributions: 8%. England and Northern Ireland rates; personal allowance tapers above GBP 100,000 (not modelled). NI is 8% between thresholds, 2% above (simplified).