Finance
UK Bonus Tax Calculator
Estimate tax and NI on your bonus, including marginal deductions and the personal allowance taper above 100,000.
Tax on bonus
£2,000.00
NI on bonus
£100.00
Net bonus received
£2,900.00
Effective deduction
42%
The calculation compares take-home pay before and after the bonus, so it reflects marginal tax, NI, and the personal allowance taper above 100,000.
What this tool includes
- Annual salary
- Bonus amount
- Marginal income tax
- Marginal National Insurance
- Net bonus
- Effective deduction rate
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