Bonus Tax Calculator

Our bonus tax calculator shows your net bonus after income tax and NI. Bonuses are taxed as regular income — added to your annual salary and taxed at your marginal rate. Higher-rate taxpayers pay 40% on bonus income above £50,270.

Enter your regular annual salary first — this determines which band your bonus falls into. Then add the bonus amount. The calculator adds both together to find the marginal rate applicable to the bonus portion. If your salary is in the basic rate band but your bonus pushes annual income above £50,270, the excess is taxed at 40%. The results show your net bonus after income tax and NI so you know exactly what lands in your account. Employer NI on the bonus is shown for reference — useful for employers and for employees considering salary sacrifice on bonus payments, where employer NI saved is sometimes shared. Bonus timing matters: a new tax year resets all thresholds and allowances.