£21 an hour at 37.5 hours a week is £40,950 a year, or £33,004 after tax — £2,750 a month.
What £21 an hour actually pays
£21 per hour over 37.5 hours a week is roughly £40,950 gross per year before deductions. The estimate below annualises the hourly rate, shows take-home pay after PAYE-style deductions, and notes how hours, pension, student loan, region, and tax-code assumptions can change the result.
Both figures are editable. Annual pay and take-home follow from them.
Take-home a year£33,004
Gross
£40,950
Income Tax
£5,676
National Insurance
£2,270
Take-home a month
£2,750
Of £40,950.00 gross a year: Income Tax £5,676.00, National Insurance £2,270.40, Take-home £33,003.60.
Saving £140 a month — about 5% of this take-home — becomes £9,265.06 in five years at an example 4%: try the savings calculator.
2026/27 rates, England, Wales and Northern Ireland, no student loan. Open the full calculator to change region, student loan or pension method.
Payslip showing different figures? The payslip checker works out what your pay and tax code should have produced and shows which assumption could explain the gap.
Estimated take-home pay
Hourly rate£21
Gross annual salary£40,950
Monthly take-home£2,750
Weekly take-home£635
£40,950 on a 1257L tax code in England/Wales/Northern Ireland, 2026/27: no pension, no student loan, without postgraduate loan, no bonus, and no other income. Personal Allowance taper is applied where the shared salary engine has enough information; real payslips can differ.
This is the twenty-one pounds per hour example at 37.5 hours a week. It annualises the hourly rate first, then applies PAYE-style deductions so the gross hourly rate and take-home pay are kept separate.
Hourly calculation details
Value
What it means
Gross pay annualised from hourly rate
£21 x 37.5 hours x 52 weeks = £40,950
The hourly rate multiplied by weekly hours and 52 weeks to create the gross annual estimate.£21 x 37.5 hours x 52 weeks = £40,950
Selected hours per week
37.5
The weekly hours used to annualise the hourly rate.
Annual salary at 37.5 hours
£40,950
Gross annual salary if the hourly rate is worked for 37.5 hours each week.
Annual salary at 40 hours
£43,680
Gross annual salary if the hourly rate is worked for 40 hours each week.
Taxable income used for Income Tax
£28,380
The income amount passed into PAYE Income Tax bands after the Personal Allowance and supported adjustments.£40,950 gross pay - £0 taxable pension reduction - £12,570 Personal Allowance + £0 tax-code adjustment = £28,380
Estimated annual take-home
£33,004
Estimated pay left across the full tax year after the listed deductions.£40,950 gross pay - £7,946.40 deductions = £33,003.60
Estimated monthly take-home
£2,750
The annual take-home estimate spread evenly across 12 months.£33,003.60 ÷ 12 = £2,750.30
Income Tax
£5,676
Estimated PAYE Income Tax after annualising the hourly pay.
National Insurance
£2,270
Estimated employee Class 1 National Insurance after annualising the hourly pay.
Total deductions
£7,946
Income Tax, employee National Insurance, pension, and student-loan deductions included in the estimate.£5,676 Income Tax + £2,270.40 National Insurance + £0 pension + £0 student loans = £7,946.40
PAYE method after annualising the hourly rate
Gross pay spread monthly
£40,950 ÷ 12 = £3,412.50Annual gross salary divided evenly across 12 months before deductions.
Taxable income used for Income Tax
£40,950 gross pay - £0 taxable pension reduction - £12,570 Personal Allowance + £0 tax-code adjustment = £28,380This is the income figure passed into the Income Tax bands. Tax-code adjustments and pension method can change it.
Total annual deductions
£5,676 Income Tax + £2,270.40 National Insurance + £0 pension + £0 student loans = £7,946.40The deductions included in the take-home estimate.
Annual take-home pay
£40,950 gross pay - £7,946.40 deductions = £33,003.60The estimated pay left after the listed annual deductions.
At £21.00 an hour and 37.5 hours a week, a full year comes to £40,950 gross and about £33,004 after Income Tax and National Insurance. Each hour worked is therefore worth roughly £16.92 in the bank rather than the £21.00 on the contract.
That is £8.29 an hour above the £12.71 National Living Wage for people aged 21 and over, which adds up to about £16,165 a year at these hours.
One extra hour a week at this rate is £1,092 a year gross. Whether that is worth it depends on the band the extra pay falls into: this salary sits £9,320 below the £50,270 higher-rate threshold, so overtime is taxed at the basic rate.
Checks worth making on £21 an hour
Assumptions used here
Assumptions used here
Tax/source year
2026/27
Region
England/Wales/Northern Ireland
Tax code basis
1257L where the page uses PAYE defaults
Pension basis
No pension deduction unless this example says otherwise
Student loan basis
No student loan unless selected in this example
Hourly basis
£21 per hour, 37.5 hours a week
What changes this result
What changes this result
Still in the basic rate band
£28,380 of this salary is taxed, all at the basic rate, and there is £9,320 of headroom before the higher-rate threshold at £50,270. A rise inside that headroom keeps roughly 72p in the pound after tax and National Insurance.
Pension is cheap here
Basic-rate relief means £100 into a pension costs about £80 of take-home pay. Salary sacrifice reduces National Insurance too, so the real cost is often lower again.
Pension contribution
Changing the rate or method can change taxable income, National Insurance and take-home pay.
Tax code and region
Scottish Income Tax, Welsh codes, emergency tax or a non-standard tax code can move the result.
Thresholds to be aware of
Thresholds to be aware of
Minimum-wage context
Compare hourly examples with the current National Minimum Wage or National Living Wage category where relevant.
Useful comparisons
Useful comparisons
35 hours
Useful for part-time or shorter full-time contracts.
PayBreakdown does not decide payroll correctness, lender approval, benefit entitlement or employer compliance, and does not give regulated financial, mortgage, debt, tax, payroll or legal advice.
What the £21 an hour estimate assumes
The figures on this page are worked from £21 an hour, using the values below. Open the calculator if your hourly rate or hours differs.
£40,950 a year at 37.5 hours a week, or £43,680 at 40 hours. Both figures are gross, before Income Tax and National Insurance come off.
What is £21.00 an hour after tax?
On a 37.5-hour week, £21.00 an hour is roughly £2,750 a month or £33,004 a year after tax, using 2026/27 rates on a standard tax code with no pension or student loan.
How much is £21.00 an hour a month?
About £3,413 gross a month at 37.5 hours a week, which is around £2,750 after tax and National Insurance. Monthly pay varies slightly because months differ in length; the figure here spreads the year evenly.
Is £21.00 an hour a good wage in the UK?
It works out at £40,950 a year at 37.5 hours. Whether that is comfortable depends heavily on where you live and your housing costs, but comparing the £2,750 monthly take-home against your rent or mortgage plus bills is the most useful test.
Last updated 2026-08-27. Checked by Sean Elsmore. Rates last checked against GOV.UK on 2026-08-07. Estimates are for planning and should be checked against official records where the decision matters.