Your pay and bonus

Your pay
More optionsOptional. The defaults suit most people; change these if your situation is different.
Where you live
You are paidOptional

Free to use. Your details are not saved to an account.

Your summary

Your bonus after tax£3,874of your £5,000 bonus
You keep£3,874
Income Tax£1,000
National Insurance£126

Of a £5,000 cash bonus, £1,126 goes in deductions, so you keep 77%.

23% deductedPaid in one monthEngland, Wales or NI

THE COMPLETE PICTURE

Your results in detail

Income Tax£1,000
National Insurance£126
Bonus month pay£6,867After deductions
Share kept77%
What we assumed
Tax year
2026/27
Tax code
1257L, cumulative
Paid
Monthly, bonus in one month
Student loan
No student loan

Not right for you? Change it under More options.

Where your bonus goes

Every pound of the bonus, split by who gets it.

You keep£3,874
Income Tax£1,000
National Insurance£126

Your bonus month payslip

A normal month next to the month the bonus is paid. National Insurance and student loan are worked out on each payment on its own.

ItemNormal monthBonus month
Gross pay£3,750.00£8,750.00
Income Tax-£540.50-£1,540.50
National Insurance-£216.16-£342.50
Take-home£2,993.34£6,867.00

Cash or pension?

The same bonus, taken as cash or paid into your pension by salary sacrifice.

OptionWhat you get
Take it all as cash£3,874
Pay it all into your pension£5,000+£1,126 more

Pension money is taxed when you draw it, though usually a quarter can be taken tax-free. Some employers also add the National Insurance they save.

Worth knowing

What this bonus does to your tax position.

If the bonus month looks over-taxed

PAYE is cumulative, so the tax on your bonus usually evens out over the year. If you have an emergency tax code or start a job mid-year, it may not, and HMRC refunds any overpayment after the tax year ends.
What you'd keep from different bonuses
BonusYou keepShare kept
£1,000£75475%
£2,500£1,92477%
£5,000£3,87477%
£10,000£6,82868%
£20,000£12,62863%
£50,000£30,02860%

2026/27 rates. Estimates assume your salary is paid evenly and the bonus arrives in one month.

Free Bonus Tax calculator by SumAtlas. Estimates only, not financial advice.