20 Hours a Week After Tax 2025-26
National Minimum Wage (£12.21/hr) · Gross: £12,698/year
Your earnings exceed the £12,570 Personal Allowance — Income Tax and NI apply on the excess.
You pay 20% Income Tax and 8% NI on earnings above £12,570.
Tax breakdown — 20 hours/week at NMW 2025-26
| Item | Annual | Monthly | Weekly |
|---|---|---|---|
| Gross earnings | £12,698 | £1,058 | £244 |
| Personal Allowance (tax-free) | £12,570 | £1,048 | £242 |
| Income Tax | −£26 | −£2 | −£1 |
| National Insurance | −£10 | −£1 | −£0 |
| Net take-home | £12,662 | £1,055 | £244 |
A note on National Insurance for students
NI kicks in above £12,570/year (£242/week) — students are subject to National Insurance on earnings above this threshold, exactly like any other worker. There is no NI exemption for students. The rate is 8% on earnings between £12,570 and £50,270. If you earn below £12,570/year, you pay zero NI.
Personalised insights — 20 hours/week at NLW
Working 20 hrs/week at the £12.21/hr National Living Wage, your £12,698 annual gross is 0.53× the full-time NLW benchmark (£23,810 at 37.5h/week). You are using 100% of your £12,570 Personal Allowance, so you keep 100p per £1 and lose £0 of tax per working day. On the same 20-hour schedule you would earn £10,400 on the under-21 rate (£10.00/hr) and only £7,852 on the apprentice rate (£7.55/hr) — being 21+ on the full NLW is 61% more than the apprentice rate (+£4,810/year) and +£2,262/year vs the under-21 rate. Term-time only (~30 weeks/year instead of 52) shifts your gross to £7,326 — take-home ~£7,326. Adding 1 hr/week year-round would add £457 to your annual net. If you can tuck away 20% of your monthly take-home (£211/month) into a Stocks & Shares ISA, the full £20,000 allowance fills in 95 months — compounding from age 18-22 is the single biggest head-start a student can give their future self.
Scotland comparison
Scotland uses different income tax bands (19% Starter rate, 20% Basic, 21% Intermediate). For lower earners below the Personal Allowance, both regions result in identical take-home pay.
Frequently asked questions
Do students pay income tax on 20 hours a week?
At 20 hours/week at NMW (£12.21/hr), your annual gross is £12,698, which is above the £12,570 Personal Allowance. You pay Income Tax of £26 on earnings above the allowance.
Do students pay National Insurance working 20 hours a week?
Yes. National Insurance applies on earnings above £12,570/year (£242/week). On £12,698/year you pay £10 in NI at 8%.
Can I work 20 hours a week without paying tax?
Not quite. At 20 hours/week at £12.21/hr, your annual gross (£12,698) exceeds the £12,570 Personal Allowance. You pay Income Tax of £26 and NI of £10.
What is the student Personal Allowance?
There is no special student Personal Allowance — all UK residents get the same standard Personal Allowance of £12,570 for 2025-26. This is the amount you can earn before paying Income Tax. Students get exactly the same allowance as everyone else.
What is the annual equivalent salary for working 20 hours a week?
Working 20 hours/week at the National Minimum Wage (£12.21/hr) gives an annual gross of £12,698. Your annual take-home after tax is £12,662. This is based on 52 weeks per year — if you only work term-time (around 30 weeks), your actual gross would be approximately £7,326.
How does the NMW compare to the full National Living Wage for students working 20 hours a week?
The National Minimum Wage rate depends on your age. Workers aged 21+ earn the National Living Wage of £12.21/hr — giving £12,698/year at 20 hours/week. Workers aged 18-20 earn £10.00/hr — giving £10,400/year. Workers aged 16-17 and apprentices in year one earn £7.55/hr. Your net take-home of £12,662/year is based on the £12.21/hr NMW rate.