£18 an hour is how much a year in the UK? Full-time gross, income tax, National Insurance and your real 2026/27 monthly take-home, worked through.
If you have just been offered £18 an hour, or you are weighing up a job that pays it, the first question is almost always the same: £18 an hour is how much a year, and how much of that actually lands in my bank account?
The honest answer is that it depends on your hours, but the maths is simple once you know the 2026/27 tax rules. Here is the full picture, worked through with real numbers, so you can see your gross salary and your genuine take-home before you say yes.
Your annual gross pay is just your hourly rate multiplied by the hours you work in a week, multiplied by 52 weeks. The reason people get different answers is that “full time” is not a fixed number of hours in the UK.
Three common patterns:
So when someone asks what £18 an hour annual salary is, the safe answer is “between roughly £32,760 and £37,440, depending on the contracted week”. For the worked examples below I will use the 37.5-hour week (£35,100) as the main case, because it is the most common, then show the 40-hour version.
One thing worth checking on your contract: whether your paid week includes breaks. An unpaid 30-minute lunch on a 40-hour shift pattern quietly turns a “40-hour” job into a 37.5-hour paid one, and that changes your annual figure.
Gross pay is only half the story. Two deductions come off nearly everyone’s wage before it reaches you: income tax and National Insurance. For 2026/27 the rules are the same as the year before, because the thresholds are frozen.
Here is what applies on the standard tax code, 1257L, which gives you the full £12,570 personal allowance:
Gross salary: £35,100
Take-home: £35,100 − £6,308.40 = £28,791.60 a year.
That is about £2,399 a month, or roughly £554 a week, before any pension or student loan.
Gross salary: £37,440
Take-home: £37,440 − £6,963.60 = £30,476.40 a year, or about £2,540 a month.
Notice that the extra 2.5 hours a week lifts your gross by £2,340 but your take-home by only about £1,685. That gap is the 28% you hand over in tax and National Insurance on those top-up hours. It is not a penalty for working more, it is simply the standard rate applying to every pound above your allowance.
Whether £18 an hour is good is partly personal, but there are a few objective anchors that help you judge it.
First, it is comfortably above the legal floor. The 2026/27 National Living Wage for workers aged 21 and over is £12.71 an hour. At £18 you are earning about 42% more than the minimum, which puts you clearly in the middle band of UK hourly pay rather than at the bottom.
Second, it keeps you out of higher-rate tax. Even on a 40-hour week, £37,440 is well under the £50,270 point where the 40% rate starts for 2026/27. Every hour you work at £18 is taxed at the basic 20%, so your take-home stays predictable and you keep 72% of each additional gross pound after tax and National Insurance.
Third, context matters. £18 an hour stretches very differently in Sunderland than in central London, and a role with guaranteed 40-hour weeks is worth more than one where hours get cut in a quiet month. If your income swings week to week, the annual figure above is a ceiling, not a promise, so plan against your realistic average hours rather than your best week.
It helps to see £18 next to the rates just below and above it, because a pay bump sounds bigger than it feels once tax and National Insurance take their share. All three figures below use the standard 37.5-hour week and tax code 1257L.
Moving from £15 to £18 an hour lifts your gross by £5,850 but your take-home by roughly £4,212, because 28% of every extra pound goes to tax and National Insurance. It is still a real raise, just not the full headline number. The same logic runs the other way when hours get cut: losing a few hours a week costs you less in take-home than the gross drop suggests, which is small comfort but worth knowing when a rota changes.
If your role pays overtime, those extra hours are taxed at exactly the same 20% and 8% while you stay under £50,270, so an overtime hour at £18 is worth about £12.96 in your pocket. Time-and-a-half at £27 an hour nets around £19.44 for each of those hours.
The numbers above assume the simplest case: one job, tax code 1257L, no other deductions. A few common things reduce what actually reaches you.
Workplace pension. If you are auto-enrolled, the standard employee contribution is 5% of qualifying earnings. On £35,100 that is a meaningful monthly chunk, though it is your money going into your pension rather than tax. It lowers your take-home but not your net worth.
Student loan. On Plan 2, you repay 9% of everything you earn above the threshold. If you are on a repayment plan, expect another deduction on top of tax and National Insurance.
The wrong tax code. If you have just started the job and your employer has not received your P45, you might be put on an emergency code or on 1257L with W1 or M1 attached, which can mean overpaying tax at first. It usually corrects itself, and you can read how to check and fix it in our guide to the 1257L tax code. If you are on something like BR or 0T, more of your pay is being taxed than it should be.
A second job. If £18 an hour is your second income, that job is often taxed at BR, meaning 20% comes off from the first pound because your personal allowance is already used by your main job.
For anyone earning around £18 an hour, the useful news is that almost nothing changed for the 2026/27 tax year. The personal allowance is still £12,570, the higher-rate threshold is still £50,270, National Insurance is still 8% in the main band, and the basic rate is still 20%. These have been frozen since 2021 and are set to stay frozen for several more years.
What did move is the wage floor beneath you. The National Living Wage rose to £12.71 an hour from 1 April 2026, up from £12.21. That does not affect your £18 directly, but it narrows the gap between minimum-wage roles and yours, which is worth remembering next time you negotiate.
Because the tax thresholds are frozen while wages rise, more of any pay increase gets taxed over time. It is a slow effect, but it is why a pay rise can feel smaller in your bank account than it looks on paper.
If you want to see your own £18 an hour take-home pay for your exact hours, tax code and pension, the NetPay app works it out for you, including National Insurance, student loan and salary sacrifice. Free to download.
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On a standard 37.5-hour week, £18 an hour works out at £35,100 a year gross. On a 40-hour week it's £37,440, and on a 35-hour week it's £32,760. The figure changes with your contracted hours, so always multiply your real weekly hours by 52.
At £18 an hour on a 37.5-hour week (£35,100 a year) with the standard 1257L tax code, you take home about £28,792 a year, or roughly £2,399 a month, after income tax and National Insurance. Pension or student loan deductions would lower that further.
£18 an hour is well above the 2026/27 National Living Wage of £12.71, so it sits comfortably in the middle of the UK pay range. Whether it feels good depends on your hours, location and outgoings, but it keeps a full-time worker clear of the higher-rate tax band.
No. Even on a 40-hour week, £18 an hour is £37,440 a year, which is below the £50,270 higher-rate threshold for 2026/27. You would need to work heavy paid overtime, well beyond full time, before any of your pay reached the 40% band.
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.
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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 (16 July 2026). Tax rules change. For complex situations, consult a qualified UK accountant or visit gov.uk/income-tax.
