See the Income Tax and National Insurance taken from your bonus, the effective rate, and what actually lands in your bank.
Salary-sacrifice pension comes out before tax and NI, so the whole amount goes into your pension instead of being taxed.
Estimate for the 2026/27 tax year. Assumes the bonus is paid as cash through PAYE on top of your salary. Student loan and other deductions are not included.
You keep from your bonus
from a bonus - that's in your pocket
deducted from bonus
tax + NI total
Pension top-up
Sacrificing adds the full amount to your pension and saves in tax & NI versus taking it as cash.
Watch out
Estimate only. Your payslip may differ due to tax code, student loan or other deductions.
The Bonus Tax Calculator does more than show a number. Below your result it explains what your figures mean in practice - your effective and marginal rates, any allowances or thresholds you are close to, and the specific steps to take next. Enter your details above and the guidance updates to match your situation.
Do this next, in order
Estimates only - not financial or tax advice. Confirm figures on GOV.UK or with an adviser.
On top of your salary, in .
| Scenario | Bonus | Tax + NI | You keep | |
|---|---|---|---|---|
Bonus Tax Calculator by TaxFly — free UK tax calculators