UK · Free calculator
Bonus tax calculator
Estimate how much tax and NI you pay on a UK work bonus.
Your figures
Rates updated 2026-04-06. Results update as you type.
Compares full-year tax with and without the bonus.
- Bonus in your pocket
- £2,160.00
- Income tax on bonus
- £600.00
- NI on bonus
- £240.00
- Effective deduction rate
- 28%
Bonus split
- You keep £2,160.00
- Tax £600.00
- NI £240.00
How this calculator works
Net bonus is the difference in annual take-home with and without the bonus.
£3,000 bonus on £38,000
Salary £38,000 plus a £3,000 bonus in England.
Assumptions & sources
- Rates for UK tax year 2026/27.
- Employee Class 1 National Insurance only (not self-employed).
- Does not include marriage allowance, Blind Person’s Allowance, or other reliefs.
- Pension contributions modelled as a simple % of gross (relief at source unless salary sacrifice is selected).
Frequently asked questions
If the bonus takes taxable income across a band threshold, part of it may be taxed at a higher rate. This calculator compares pay with and without the bonus.
Estimates only
Handy Money Tools provides illustrative figures, not personalised financial or tax advice. Verify
important decisions with official sources or a qualified adviser.
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