£20 an hour is how much a year in the UK?
- Income tax£5,28613.6%
- National Insurance£2,1145.4%
- Take-home pay£31,60081.0%
At the UK full-time pattern of 37.5 hours and 52 weeks, £20 an hour is £39,000 a year. Income tax and National Insurance take £7,400, leaving £31,600 — £2,633 a month. Pay the statutory 5% workplace pension and the net becomes £30,289, £1,310 less, because the pension comes out before income tax.
The same £20 an hour at different weekly hours
Part-time hourly work is not a scaled-down version of full-time work. Each row below is recalculated on its own annual figure, so the tax bill is lower than a straight percentage — at 16 hours a week the personal allowance of £12,570 may wipe income tax out entirely.
| Weekly hours | Hours a year | Annual gross | Income tax | National Insurance | Take-home | Monthly |
|---|---|---|---|---|---|---|
| 16 hours | 832 | £16,640 | −£814 | −£326 | £15,500 | £1,292 |
| 20 hours | 1,040 | £20,800 | −£1,646 | −£658 | £18,496 | £1,541 |
| 25 hours | 1,300 | £26,000 | −£2,686 | −£1,074 | £22,240 | £1,853 |
| 30 hours | 1,560 | £31,200 | −£3,726 | −£1,490 | £25,984 | £2,165 |
| 35 hours | 1,820 | £36,400 | −£4,766 | −£1,906 | £29,728 | £2,477 |
| 37.5 hours | 1,950 | £39,000 | −£5,286 | −£2,114 | £31,600 | £2,633 |
| 40 hours | 2,080 | £41,600 | −£5,806 | −£2,322 | £33,472 | £2,789 |
| 45 hours | 2,340 | £46,800 | −£6,846 | −£2,738 | £37,216 | £3,101 |
| 48 hours | 2,496 | £49,920 | −£7,470 | −£2,988 | £39,462 | £3,289 |
What the workplace pension changes at £20 an hour
Pension contributions work under a net pay arrangement, so they reduce taxable pay but leave National Insurance untouched. At this rate the pension only applies to earnings between £6,240 and £50,270, which is why 8% does not cost 8% of the whole salary.
| Employee contribution | Pension paid | Income tax | National Insurance | Annual take-home | Monthly |
|---|---|---|---|---|---|
| None | — | −£5,286 | −£2,114 | £31,600 | £2,633 |
| 5% | −£1,638 | −£4,958 | −£2,114 | £30,289 | £2,524 |
| 8% | −£2,621 | −£4,762 | −£2,114 | £29,503 | £2,459 |
The employer adds at least 3% on top of your own contribution — money that never appears in these take-home figures because it goes straight into the pension pot.
Student loan at £20 an hour
Repayment is 9% of everything above your plan's threshold (6% for the postgraduate loan), taken from pay rather than from the annual total in one go. At £39,000 a year:
| Plan | Threshold | Rate | Repayment a year | Per month |
|---|---|---|---|---|
| Plan 1 | £26,900 | 9% | −£1,089 | −£91 |
| Plan 2 | £29,385 | 9% | −£865 | −£72 |
| Plan 4 | £33,795 | 9% | −£468 | −£39 |
| Plan 5 | £25,000 | 9% | −£1,260 | −£105 |
| Postgraduate loan | £21,000 | 6% | −£1,080 | −£90 |
5 plans apply at this rate; a borrower is only on one of them, so use the line that matches your loan.
£20 an hour in England versus Scotland
National Insurance and the personal allowance are identical across the UK; only the income tax bands differ. At £39,000 the gap is £55 a year, and it grows quickly above £43,663 where Scotland's higher rate starts.
| Where you work | Income tax | National Insurance | Annual take-home | Difference |
|---|---|---|---|---|
| England, Wales & Northern Ireland | −£5,286 | −£2,114 | £31,600 | — |
| Scotland | −£5,341 | −£2,114 | £31,545 | £55 |
What 7.5 extra hours a week are worth at £20
A 45-hour week at the same rate adds £7,800 of gross pay a year (£650 a month) and £5,616 of take-home (£468 a month). The gap between those two numbers is the marginal rate on the extra hours: 28.0% goes to tax and National Insurance. Note that this is the same rate as normal pay — UK overtime is not taxed at a special rate, it simply adds to the annual total.
If your contract pays overtime at 1.5× after 37.5 hours, the extra hours are worth half again as much gross, and roughly £2,808 more in the hand.
Nearby hourly rates
Is £20 an hour a good wage in the UK?
It is £39,000 a year before tax and £2,633 a month after tax and National Insurance without a pension. Whether that is comfortable depends on housing, region and household size, which this page cannot know — but the effective deduction rate here is 19.0%, so the gross-to-net gap is the part you can plan around.
How many hours is that a month?
37.5 hours a week averages 163 hours a month — a little over 162. Monthly pay is annual pay divided by 12, not four weeks of pay, which is why a month never equals 4 × a weekly figure.
Why does the tax line jump between neighbouring rates?
Because income tax is banded, not flat. Crossing £100,000 starts the personal allowance taper and creates an effective 60% band until £125,140; National Insurance drops from 8% to 2% at £50,270. Hourly rates either side of those points behave differently even when the pay difference is small.