TaxWedge

England & Wales · 2026/27

£18,000 after tax

A salary of £18,000 in England, Wales & Northern Ireland leaves £16,479.60 a year — £1,373.30 a month. The next £100 you earn is taxed at 28%.

  • Income tax £1,086
  • National Insurance £434.40
  • Effective rate 8.4%
  • Employer cost £19,950
Take-home a year
£16,479.60
£1,373.30 a month · £316.92 a week
Total deductions
£1,520.40
8.4% of gross pay
On your next £100
28%
You keep £72 of the next £100
Cost to employ you
£19,950
Includes £1,950 of employer NI absent from your payslip
The wedge
17.4%
Share of that cost that never reaches you

What matters at £18,000

At this salary the arithmetic is about as simple as UK pay gets, and two thresholds are doing all the work. The first £12,570 you earn is free of income tax and National Insurance alike; everything above it is taxed at 28% combined. There are no tapers here, no charges and no cliffs — which is worth knowing, because it means a rise at this salary is worth more in your hand than the same rise almost anywhere higher up the scale.

Two things are close enough to plan around. A Plan 2 student loan starts taking 9% at £29,385, which is £11,385 above this salary — so if you have one, a rise of that size costs more at the margin than it looks. The higher rate of income tax starts at £50,271, £32,271 away.

Because the personal allowance is a fixed amount rather than a share of your pay, it is worth proportionally more the less you earn. Your effective rate here is 8.4% — well under the 28% headline — and that gap narrows steadily as pay rises.

Where the money actually goes

Your payslip shows £18,000 going in and £16,479.60 coming out. It does not show the £1,950 your employer pays in National Insurance on top — money spent to employ you that you never see. Counting it, the job costs £19,950 and 17.4% of that never reaches you.

  • Take-home £16,479.60 82.6%
  • Your NI £434.40 2.2%
  • Income tax £1,086 5.4%
  • Employer NI £1,950 9.8%

The arithmetic, step by step

Every figure below is amount × rate on the published 2026/27 bands for England, Wales & Northern Ireland.
StepApplied toRateAmount
Gross pay£18,000
Personal allowancetax-free0%−£12,570
Taxable income£5,430
Basic rate£5,430 of it20%£1,086
Income tax£1,086
National Insurance — main rate£5,430 of it8%£434.40
National Insurance£434.40
Take-home pay£16,479.60

Adding the deductions gives £1,520.40, and £18,000 less that is the £16,479.60 take-home above. National Insurance is charged per pay period rather than annually, so a month containing a bonus can pay more than this.

£18,000 a month, a week, an hour

£16,479.60 a year, divided the ways payroll actually pays it.
PeriodGrossDeductionsTake-home
A year£18,000£1,520.40£16,479.60
A month£1,500£126.70£1,373.30
Four-weekly£1,384.62£116.95£1,267.66
Fortnightly£692.31£58.48£633.83
A week£346.15£29.24£316.92
An hour (37.5h week)£9.23£0.78£8.45

A four-weekly payroll pays £1,267.66 thirteen times a year rather than £1,373.30 twelve times — the same annual total, arriving in smaller and more frequent amounts. Hourly assumes 37.5 paid hours a week for 52 weeks.

The rate on your next £100

At £18,000 the rate on further pay is 28%, so the next £100 you earn is worth £72 in your hand and £28 to the Exchequer. An hour of overtime at the implied rate of £9.23 is worth £6.65. Those are the figures a take-home total cannot give you, and they are what a rise, a bonus or a pension contribution is actually priced at.

A £1,000 rise on this salary is worth £720 in your hand — 72.0% of it — or £60 a month. It costs your employer £1,150.

What is close to £18,000

£18,000 sits between two things that matter. £5,430 below you is the personal allowance, and £3,000 above you is the Postgraduate Loan repayment threshold — so this salary is already past one change and approaching another.

The 5 thresholds closest to £18,000, nearest first.
What changesAtFrom here
Postgraduate Loan repayment threshold£21,000+£3,000ahead
Personal allowance£12,570−£5,430passed
Plan 5 repayment threshold£25,000+£7,000ahead
Plan 1 repayment threshold£26,900+£8,900ahead
Plan 2 repayment threshold£29,385+£11,385ahead

Measured against the 2026/27 parameters for England, Wales & Northern Ireland. Distances are on gross pay before any salary sacrifice, because that is the figure every one of these thresholds is tested against.

  • £21,000 — Postgraduate Loan has not started. A borrower pays nothing until £3,000 more, and then 6% of the excess.
  • £12,570 — Above it income tax starts, and the first pound over is taxed while the ones under it are not.
  • £25,000 — Plan 5 has not started. A borrower pays nothing until £7,000 more, and then 9% of the excess.
  • £26,900 — Plan 1 has not started. A borrower pays nothing until £8,900 more, and then 9% of the excess.
  • £29,385 — Plan 2 has not started. A borrower pays nothing until £11,385 more, and then 9% of the excess.

If your pay moved

A swing of ten per cent either way from £18,000 does not cross a single band: the rate on further pay stays at 28% across the whole range from £16,200 to £19,800. That makes this an unusually predictable place to be paid, and it means the arithmetic below scales — a rise of any size in that range is worth the same proportion in your hand.

£18,000 plus or minus ten per cent, and what each does to the rate on further pay.
If pay movedGrossTake-homeChangeNext £100 taxed at
−10%£16,200£15,183.60−£1,296.0028%
−5%£17,100£15,831.60−£648.0028%
+5%£18,900£17,127.60+£64828%
+10%£19,800£17,775.60+£1,29628%

What a pension contribution buys here

There is no threshold within reach below £18,000, so a pension contribution here is not about ducking under anything — it is simply the ordinary trade. Sacrificing £1,000 costs you £720.00 in take-home, because 28% of it was never going to reach you anyway, and puts the full £1,000 into the pot. That is £1,000 of saving for £720.00 of spending power — a ratio of 1.39 to one, and it is the same ratio for every pound until the next band.

With a student loan

A Plan 2 loan takes 9% of everything above £29,385 — which at £18,000 means £0 a year, or £0 a month. It is not a tax, but it leaves the same pay on the same day, so it belongs in the rate you use to decide anything: it moves your next £100 from 28% to 28%.

What a Plan 2 loan changes at £18,000.
No loanPlan 2 loan
Take-home a year£16,479.60£16,479.60
Take-home a month£1,373.30£1,373.30
Repayment a year£0
Rate on your next £10028%28%

Which plan, and what each one takes

No student loan repays anything at £18,000. The lowest threshold of the five is Postgraduate Loan at £21,000, which is £3,000 above this salary, so a borrower on any plan pays nothing at all here. That changes the moment pay crosses it, and it changes by 6% of the excess rather than by a flat amount.

£18,000 elsewhere in the UK

Income tax is devolved to Scotland; National Insurance is not. At £18,000 the two regimes differ by £39.67 a year in take-home and 0 percentage points at the margin — and neither gap is constant, because the two sets of bands cross each other rather than running parallel.

The same £18,000, taxed under each UK income tax regime.
Where you liveIncome taxTake-homeDifferenceNext £100 taxed at
England & Wales£1,086£16,479.6028%
Scotland£1,046.33£16,519.27+£39.6728%

National Insurance is identical everywhere in the UK, so the whole difference is income tax.

Questions people actually ask

How much is £18,000 a year after tax?

£16,479.60 a year — £1,373.30 a month. That is after £1,086 of income tax and £434.40 of National Insurance on the 2026/27 rates for England, Wales & Northern Ireland.

How much is £18,000 a month after tax?

£1,373.30 if you are paid monthly. A four-weekly payroll pays £1,267.66 thirteen times a year instead, and a fortnightly one pays £633.83.

What is the tax rate on £18,000?

Two different numbers, and confusing them is the usual mistake. Your effective rate — total tax and NI over gross pay — is 8.4%. Your marginal rate, on the next £100 you earn, is 28%. The marginal one is what decides whether a rise or a pension contribution is worth it.

What does £18,000 cost my employer?

£19,950. On top of your salary they pay £1,950 of employer National Insurance, which never appears on your payslip. Of that total, 17.4% goes in tax and National Insurance rather than to you.

How much is £18,000 after tax with a student loan?

£16,479.60 on Plan 2 — £0 a year less. Repayment is 9% of everything above £29,385, and it pushes the rate on your next £100 from 28% to 28%.

Is £18,000 enough to pay student loan repayments?

Not on Plan 2, Plan 4 or Plan 1: all three start above this salary, the lowest at £25,000 for Plan 5. If you are on Plan 5 you would repay £0 a year at £18,000; on the others, nothing.

How much more would I keep from a £1,000 rise at £18,000?

£720 — 72% of it, because your marginal rate here is 28%. That is one of the better rates on the whole scale.

One PAYE job, standard tax code, 2026/27 rates, employment income only. What this does and does not model →