UK Bonus Tax Calculator
Calculate your take-home bonus after tax, National Insurance, and other deductions with current 2025/26 rates
What This Means
Tax Rate Breakdown:
Action:
How Bonuses Are Taxed in the UK
In the UK, bonuses are treated as part of your regular income and taxed accordingly. The tax rate depends on your total annual earnings, including both salary and bonus.
- Basic Rate (20%): £0 – £37,700
- Higher Rate (40%): £37,701 – £125,140
- Additional Rate (45%): Over £125,140
Your bonus may push you into a higher tax bracket, meaning different portions are taxed at different rates.
National Insurance on Bonuses
Bonuses are also subject to National Insurance contributions, which are calculated based on your earnings in each pay period.
- Class 1 Employee: 12% on earnings between £12,570 – £50,270
- Reduced Rate: 2% on earnings above £50,270
- Employer Contribution: 13.8% on earnings above £9,100
The timing of your bonus payment can affect the National Insurance calculation.
Student Loan Deductions
If you have a student loan, additional deductions will be made from your bonus based on your repayment plan:
- Plan 1: 9% on income above £22,015
- Plan 2: 9% on income above £27,295
- Plan 4: 9% on income above £31,395
- Plan 5: 9% on income above £25,000
These deductions are calculated on your total income, including bonuses.
Maximising Your Bonus
There are legitimate ways to reduce the tax impact of your bonus:
- Pension Contributions: Increase your pension contribution to reduce taxable income
- Salary Sacrifice: Consider salary sacrifice schemes for benefits
- Timing: Discuss timing with your employer if near tax year end
- Childcare Vouchers: Use childcare voucher schemes if eligible
Always consult with a financial adviser for personalised tax planning advice.
Frequently Asked Questions
Bonuses aren’t actually taxed at a higher rate, but they may push your total annual income into a higher tax bracket. Additionally, PAYE calculations might temporarily apply emergency tax codes, making deductions appear higher than they should be.
Any overpaid tax will typically be refunded through your regular payroll or via a tax rebate at year-end.
Yes, increasing your pension contributions is one of the most effective ways to reduce tax on bonuses. Contributions are made before tax, reducing your taxable income.
You can contribute up to 100% of your annual earnings or £60,000 (whichever is lower) into your pension annually, subject to certain conditions.
If too much tax was deducted from your bonus, HMRC will typically refund the overpayment through your next regular payslip once your payroll department processes the correction.
If this doesn’t happen automatically, you can claim a refund directly from HMRC or wait until after the tax year ends for it to be included in your annual tax calculation.
Yes, bonuses are subject to National Insurance contributions just like regular salary. The rate depends on your total earnings and is calculated based on the pay period in which you receive the bonus.
For 2025/26, you’ll pay 12% on earnings between £12,570 and £50,270, and 2% on earnings above £50,270.
For tax purposes, commission payments are treated exactly the same as bonuses – they’re both considered part of your employment income and taxed accordingly.
The main difference is typically in timing and predictability, but the tax treatment remains the same.
Spreading bonuses across multiple pay periods can sometimes help with National Insurance calculations and PAYE processing, but it won’t change your overall annual tax liability.
However, it may help avoid temporary emergency tax deductions and make your take-home pay more predictable. Discuss this option with your employer’s payroll department.