What £12 an hour really pays after tax and NI in 2026, with monthly, weekly and daily figures, plus why £12 is now below the minimum wage.
If you have just been offered £12 an hour, or you are already on it and trying to work out what lands in your account, the honest answer is: less than £12 times your hours, and the gap is bigger than most people expect.
There is also a twist in 2026 that changes the whole question. As of April this year, £12 an hour is below the legal minimum wage for adults. So before we get to the take-home maths, it is worth knowing whether you should be on this rate at all.
£12 an hour is a gross rate, the figure before any deductions, and on a standard full-time week it comes to roughly £23,400 a year, of which you keep about £20,368 after income tax and National Insurance in the 2026/27 tax year.
The “roughly” matters because your hours, your tax code, and your pension all move the final number. Let me show the actual workings rather than ask you to trust a headline figure.
From 1 April 2026 the National Living Wage rose to £12.71 an hour for everyone aged 21 and over. That is the legal floor. So if you are 21 or older and your payslip says £12 an hour, you are being paid 71p an hour under the minimum, and your employer is breaking the law.
Over a 37.5-hour week that shortfall is £26.63 a week, or about £1,385 a year you are owed. Over a 40-hour week it is £28.40 a week.
The rate is still legal in a couple of cases. For workers aged 18 to 20, the minimum is £10.85 an hour, so £12 is above it. For under-18s and apprentices in their first year, the minimum is £8.00. Everyone else aged 21 and up should be on at least £12.71.
Here is what I would check first: your age band against the rate, then your last few payslips. If you are 21 or over and stuck at £12, raise it with your manager or payroll. You can also report underpayment to HMRC, and they can recover arrears going back up to six years. The official checker lives at gov.uk/minimum-wage-different-types-work.
For the rest of this guide I will treat £12 as your actual rate, because plenty of people are on it, including some who should not be.
Three numbers do all the work in 2026/27, and they have not changed from last year because the thresholds are frozen:
Now the worked examples. I am assuming tax code 1257L, which is the standard code for someone with one job and the full allowance.
A 37.5-hour week is the most common full-time pattern in retail and hospitality.
Some warehouse and security contracts run a 40-hour week.
This is the one that surprises people.
At 20 hours you keep every pound, because you never cross a threshold. Push up to 30 hours and the picture shifts: £18,720 gross, £1,722 in tax and NI combined, and £16,998 take-home. The extra 10 hours a week add gross pay but the first slice above £12,570 finally gets taxed.
If you think in shifts rather than salaries, here is the same full-time pattern broken down per day. On a 37.5-hour week spread over five days, that is 7.5 hours a day, or £90 gross before anything comes out. After tax and NI, a worked day is closer to £78 in your pocket. An eight-hour shift at £12 is £96 gross and about £83 net. Two of those overtime hours at the end of a week feel small on the payslip precisely because that slice is taxed at the full 20% plus 8%, leaving you roughly £17 of every extra £24 you earn.
The most common mistake I see is multiplying the hourly rate by a full-time week and treating that as your pay. Two things break that sum.
First, deductions. At 40 hours, the difference between the £24,960 gross headline and the £21,491 you actually take home is nearly £3,500 a year. That is real money people forget when budgeting around a new job.
Second, the hours rarely hold steady. Shift work means some weeks you get 42 hours and some weeks you get 28. If your contract guarantees fewer hours than you actually work, your reliable income is the contracted figure, not the busy-week figure. Budget on the floor, not the ceiling.
There is a third quiet deduction too: your workplace pension. Under auto-enrolment, most employees pay 5% on qualifying earnings, which on a £23,400 salary is about £72 a month out of your pay. That lowers your take-home to roughly £1,625 a month, but unlike tax it is your money, going into your own pot with an employer top-up on top.
If your take-home does not match the figures above, run through these in order.
To pressure-test your own figure, check your tax code first, then apply the same two steps by hand: 20% income tax and 8% National Insurance on everything you earn above £12,570 in the year.
What changed: the legal minimum. £12 an hour went from “low but legal” in 2024 to “below the floor for adults” in April 2026, because the National Living Wage climbed to £12.71. That is the single biggest fact about this rate now.
What did not change: the tax maths. The personal allowance is still £12,570, the basic rate is still 20%, and employee National Insurance is still 8%. These have been frozen since earlier in the decade and are set to stay frozen through April 2028. So the deductions on £12 an hour this year are the same shape as last year. Only the legality of the headline rate moved.
If you want to see exactly what £12 an hour pays at your real hours and tax code, the NetPay app does the calculation for you, including National Insurance, pension and student loan. Free to download.
See your real take-home pay in seconds
NetPay does this maths for every shift, invoice and payslip, automatically.
Download the app now
On a full-time 37.5-hour week, £12 an hour is £23,400 a year gross, which works out at about £1,697 a month take-home after income tax and National Insurance in the 2026/27 tax year. On a 40-hour week it is roughly £1,791 a month. Part-time hours keep more of each pound because you stay under the tax thresholds.
From 1 April 2026 the National Living Wage is £12.71 an hour for workers aged 21 and over, so £12 an hour is below the legal minimum for that age group. It can still be legal for 18 to 20 year olds, where the minimum is £10.85, or for under-18s and apprentices at £8.00. If you are 21 or over and paid £12 an hour, your employer is underpaying you.
On a 37.5-hour week, £12 an hour is £450 gross and about £392 take-home once income tax and National Insurance come out. On a 40-hour week it is £480 gross and roughly £413 take-home. The exact figure depends on your tax code and any pension contributions.
Not always. If you work about 20 hours a week at £12 an hour, that is £12,480 a year, which sits just under the £12,570 personal allowance, so you pay no income tax and no National Insurance. Above roughly 20 hours a week you start paying both.
Want to see your actual take-home pay?
NetPay UK works out your real net pay after tax, NI, pension and salary sacrifice, for hourly, shift and variable-income workers. Free to download.
Download the app now
A note on financial advice: NetPay UK calculates take-home pay based on official HMRC tax rules. This article reflects rules in force at the time of publication (4 June 2026). Tax rules change. For complex situations, consult a qualified UK accountant or visit gov.uk/income-tax.
