Bonus Tax Calculator UK 2026/27 | How Much of My Bonus Do I Keep?

Your Bonus Details

Enter your salary and bonus amount

Gross Annual Salary (excl. bonus) *

Bonus Amount *

Tax Region

Tax Year

Student Loan Plan

Your Bonus Tax Breakdown

Based on your inputs

Gross Bonus—

Income Tax on Bonus—

National Insurance on Bonus—

Student Loan on Bonus—

Net Bonus (Take-Home)—

Effective Tax Rate on Bonus—

You Take Home

£0

of your bonus

💡 Tip: Sacrificing your bonus into a pension avoids income tax and NI entirely. See Pension Sacrifice Calculator →

Estimate only. Your actual tax depends on your tax code and other income. Not financial advice.

Bonus Tax Calculator FAQs

Your bonus is added to your regular salary and taxed through PAYE. This means it is subject to income tax at your marginal rate (20%, 40%, or 45%) and National Insurance. If the bonus pushes you into a higher tax band, part of it will be taxed at the higher rate.

Yes. The most effective way is to sacrifice some or all of your bonus into your pension. This avoids both income tax and National Insurance on the sacrificed amount. Some employers allow this — ask your HR team about bonus sacrifice arrangements.

Yes. Student loan repayments are calculated on your total income above the threshold, which includes bonuses. If your bonus pushes you above the threshold, you'll repay a percentage of the excess on your bonus too.