Bonus Tax Calculator UK 2026/27
See exactly how much of your bonus you keep after income tax and National Insurance.
£
£
You keep
£3,600
from your £5,000 bonus
Tax on bonus
£1,400
Effective rate
28%
Breakdown
Gross bonus£5,000
Income tax on bonus-£1,000
National Insurance on bonus-£400
Net bonus£3,600