UK take-home pay calculator — 2026/27
| Gross annual pay | £37,440 |
| Pension contribution | −£1,560 |
| Income tax | −£4,662 |
| National Insurance | −£1,865 |
| Take-home pay | £29,353 |
Uses 2026/27 rates: Personal Allowance £12,570, employee NI 8% to £50,270 then 2%. Pension is modelled as salary sacrifice: it reduces taxable pay for income tax and National Insurance.
At a glance
On £37,440 a year gross, you'd keep about £2,446 a month after income tax, National Insurance and pension.
How reliable is this figure?
This is an estimate, not a payslip preview. It runs on the 2026/27 tax model (Personal Allowance £12,570; employee National Insurance at 8% up to £50,270, then 2%) and the pay dataset named on this page, reviewed 23 September 2026.
Your actual take-home depends on your tax code, contract terms, overtime patterns and any benefits or deductions your employer applies. If a figure here looks surprising, check it against your latest payslip and the HMRC guidance linked under Sources below.
Scotland uses different income tax bands — toggle your nation in the calculator above. Wales follows the England bands.
Worked example: £37,440 plumber salary, 2026/27 (England, auto-enrolment on)
| Gross annual salary | £37,440.00 |
| Auto-enrolment pension (5%) | −£1,560.00 |
| Income tax (20% band) | −£4,662.00 |
| Employee National Insurance | −£1,864.80 |
| Annual take-home pay | £29,353.20 |
| Monthly take-home pay | £2,446.10 |
| Weekly take-home pay | £564.48 |
Assumptions and pay data
- England income tax bands for 2026/27 (6 April 2026 – 5 April 2027)
- Auto-enrolment pension at 5% of qualifying earnings (£6,240–£50,270)
- Full-time employee — not a CIS subcontractor; subcontractor deductions are explained on the CIS and pay page
- No student loan repayments and no other deductions
- Median benchmark: ONS ASHE 2025 provisional, SOC 5315, £18.00/hr and £737.90/week
Making sense of plumber take-home pay
From the hourly median to an annual salary
Hourly rates are how plumbers talk; annual salaries are how tax works. The conversion is hourly rate × weekly hours × 52. At the £18.00 ONS median: a 37.5-hour week is £35,100 a year, the standard 40-hour week is £37,440, a 45-hour week is £42,120, and a 50-hour week is £46,800. Five extra hours a week is worth £4,680 of gross pay a year at the median rate — which is why two plumbers on the same hourly rate can take home very different amounts.
The weekly median adds a wrinkle worth knowing. £737.90 a week annualises to £38,370.80 over 52 weeks — a touch above the £37,440 you get from £18.00 × 40 × 52. The reason is hours: £737.90 divided by £18.00 is just under 41 hours, so the median full-time plumber already works slightly beyond the 40-hour week. When you enter your own hours in the calculator, use the honest average including the regular overtime, not the contracted figure.
Day rates convert the same way. The ~£140–£145 employed day-rate band is £18.00 × 8, and at five days a week for 52 weeks it becomes £36,400 to £37,700 a year — landing right on the £37,440 benchmark. The arithmetic is consistent whichever direction you come at it from, which is a useful check when an agency quotes you a day rate and an employer quotes you a salary.
Call-out income and how it stacks
Emergency call-outs sit outside the salary and the calculator, so add them yourself. An £80 call-out fee taken three times a week is £240 a week of extra gross income; over a full year that is £12,480 on top of the £37,440 salary — £49,920 gross before a penny of tax. Plumbers who grumble about the median while ignoring their call-out book are undercounting their own pay by a wide margin.
Call-out money is taxed as ordinary earnings — there is no special rate for unsocial hours. At the basic rate that means roughly 72p in the pound reaches the bank after 20% income tax and 8% National Insurance, with auto-enrolment pension taking its 5% slice of qualifying earnings on top where the call-outs run through payroll. It is still worth doing; it is just not worth the full £80.
One caution for the self-employed: call-out income received direct from customers has no tax deducted at source. The £12,480 in the example above arrives in full and the tax bill follows later through Self Assessment, so the plumber who spends it all in December meets an unpleasant surprise in January. The employed plumber's call-outs, taxed through PAYE, never create that problem.
Why the median understates gas engineers
The £18.00 median describes the middle of a mixed group. SOC 5315 lumps general plumbers, heating engineers and gas engineers into a single category, and the median cannot tell them apart. General maintenance plumbers cluster around the median; Gas Safe engineers — the ones doing boiler installs and gas fault-finding — cluster above it, pulled up by the £180–£220 typical day rates and by boiler-install price work that the median never sees.
The practical consequence: if you hold Gas Safe registration, the £37,440 default understates you, possibly by a lot. A gas engineer on £42,000 still sits comfortably inside the 20% band, which runs all the way to £50,270 in 2026/27 — the higher salary costs more tax in pounds but not a higher rate on any pound already earned. Enter your actual salary or rate rather than accepting the median as your number.
The same applies to price work. The median is built from employee pay — wages and salaries on payrolls — so the plumber doing boiler installs direct to customers at £400–£700 labour per install is earning in a way the survey barely captures. If price work is a serious slice of your income, the calculator's salary figure should be your total expected gross for the year, not just the day-rate portion.
Part-time and variable hours
Not every plumber works the 40-hour pattern, and the calculator handles the alternatives. At the £18.00 median, a 30-hour week is £28,080 a year; a three-day week at eight hours a day is £22,464. The tax bands do not move — the Personal Allowance of £12,570 applies in full — so part-time plumbers keep a larger share of each pound, with income tax biting only above the allowance.
Variable overtime needs an honest average. A plumber contracted at 40 hours who regularly works 45 should enter 45: that is £42,120 gross at the median rate, not £37,440, and the take-home difference is real money every month. Work it from a few typical months rather than the best or worst week.
Unpaid weeks matter for the self-employed and agency plumbers. Five unpaid weeks in a year turns a £37,440 annualised rate into £33,720 of actual gross — the calculator annualises whatever pattern you enter, so enter the weeks you genuinely expect to work, not 52 by default.
About this calculator
How the tax engine works
Plumber pay sits well inside the basic-rate band, which keeps the tax line simple: in 2026/27 every pound of taxable pay up to £50,270 is taxed at 20%, with the £12,570 Personal Allowance tax-free. The £37,440 worked example pays £4,662.00 of income tax — 20% of £23,310, which is the salary minus the allowance and minus the £1,560 pension contribution. Employee National Insurance runs at 8% between £12,570 and £50,270, giving the £1,864.80 line.
Pension is modelled at the 5% auto-enrolment minimum on qualifying earnings (£6,240–£50,270), which is why the pension line is £1,560.00 rather than 5% of the full salary. Scotland-registered plumbers can switch to the Scottish bands under the calculator, where the rates and thresholds differ from England's. The full band tables are in the UK tax guide linked below.
Reviewed and updated
The pay benchmark and worked example were last reviewed on 23 September 2026 against the ONS ASHE 2025 provisional release. The tax model covers 6 April 2026 to 5 April 2027. If you are comparing a job offer, enter the actual salary and your honest weekly hours — the annualised figure is only as accurate as the hours behind it.
Plumber take-home pay FAQs
What is the take-home pay on a £37,440 plumber salary?
£29,353.20 a year — £2,446.10 a month, £564.48 a week. The worked example deducts £1,560.00 of auto-enrolment pension (5%), £4,662.00 of income tax at the 20% band, and £1,864.80 of employee National Insurance.
£37,440 is the ONS median of £18.00 an hour at 40 hours a week for 52 weeks, so it is the benchmark full-time employed figure for 2026.
How is the £37,440 default salary worked out?
£18.00 (the ONS ASHE 2025 provisional median hourly rate for plumbers and heating installers) × 40 hours a week × 52 weeks = £37,440. It is the standard full-time pattern behind the survey figures.
If your hours differ, the components scale directly: 37.5 hours is £35,100 a year, 45 hours is £42,120, and 50 hours is £46,800 — all at the £18.00 median rate.
I work 45 hours a week, not 40 — what changes?
Your gross becomes £42,120 a year at the £18.00 median rate (£18 × 45 × 52), and your take-home rises accordingly. You stay inside the 20% income tax band, which runs to £50,270 in 2026/27, so the extra hours are taxed at the same rate as the rest.
Enter 45 as your weekly hours in the calculator rather than trying to adjust the £37,440 figure yourself — it annualises your actual pattern.
Are emergency call-out fees taxed differently?
No — call-out income is taxed as ordinary earnings at your marginal rate. An £80 call-out fee three times a week is £240 a week of extra gross income (£12,480 a year), and at the basic rate roughly 72p in the pound reaches the bank after 20% income tax and 8% National Insurance.
There is no special unsocial-hours rate in the tax system. The premium is in the fee the customer pays, not in how the taxman treats it.
I pay tax in Scotland — does this calculator work for me?
Yes. Use the Scotland option under the calculator and the engine switches to Scottish income tax bands, which have different rates and thresholds from England's. The Personal Allowance of £12,570 is the same UK-wide.
National Insurance and auto-enrolment pension work identically in both nations, so only the income tax line moves.
Does the calculator deduct my student loan?
No — the worked examples assume no student loan. In reality, repayments come off after tax and National Insurance as a percentage of earnings above the threshold, which lowers the monthly figure shown here.
If you have a Plan 1, Plan 2 or postgraduate loan, run your salary through the student loan calculator as well and subtract the monthly repayment from the take-home shown here.
I am a CIS subcontractor — can I use this calculator?
Not directly. This calculator models full-time employees with auto-enrolment pension and PAYE tax. CIS subcontractors have 20% deducted from the labour element of each invoice (30% if unregistered), no auto-enrolment pension, and settle the final bill through Self Assessment — a different shape of calculation.
The CIS and pay page works the subcontract maths through with a real invoice example, including the materials exclusion.
Why does the ONS median feel low compared with what plumbers actually earn?
Because the median measures employee pay across a mixed category. It covers general plumbers, heating engineers and gas engineers together, and it misses the two things that lift real earnings: self-employed price work (boiler installs at £400–£700 labour each) and call-out income (£80 a visit adds up fast).
If Gas Safe work, price jobs or call-outs are part of your pattern, enter your actual total gross for the year rather than the £37,440 default — the median is a benchmark, not a ceiling.
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Sources
- ONS — Annual Survey of Hours and Earnings 2025 (provisional). Pay period April 2025, all employees. SOC 2020 5315 "Plumbers & heating and ventilating installers and repairers": median £18.00/hr, £737.90/week. Default gross of £37,440 = £18.00 × 40 hours × 52 weeks. Accessed 23 September 2026.
- GOV.UK — Income Tax rates and allowances 2026/27. Personal Allowance £12,570; 20% to £50,270, 40% to £125,140, 45% above; bands frozen to 5 April 2031 (Autumn Budget 2025). Accessed 23 September 2026.
- GOV.UK — National Insurance rates 2026/27. Employee Class 1: 8% on £12,570–£50,270, 2% above. Accessed 23 September 2026.
- GOV.UK — What you must do as a CIS subcontractor. CIS deduction rates: 20% for registered subcontractors, 30% where unregistered or unverifiable, 0% with gross payment status; deductions are advance payments toward income tax and National Insurance. Accessed 23 September 2026.
These are estimates for guidance only, not financial advice. Figures are taken from the sources listed above and were correct when this page was reviewed. Your actual pay depends on your contract, hours and tax code — check your payslip and HMRC guidance if anything looks off.