Night-shift premium calculator
| Night rate per hour | £18.00 |
| Base pay (night hours) | £31,200 |
| Premium on top | £6,240 |
At a glance
Your night premium adds about £120.00 a week on top of base pay — £6,240 a year before tax.
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.
Verified: £15 an hour with a 20% night premium, 40 night hours a week, 52 weeks a year.
| Base pay, 40 hours at £15 | £600 per week |
| Night premium, 20% of £15 × 40 hours | £120 per week |
| Total weekly pay on nights | £720 per week |
| Premium alone, per year (£120 × 52) | £6,240 per year |
| Premium alone, per month | £520 per month |
Assumptions and pay data
- The premium is calculated as a percentage uplift on your base hourly rate, applied to every night hour you enter.
- Annual figures assume 52 paid weeks; if your contract is term-time or seasonal, adjust the weeks in the calculator.
- The premium is treated as taxable earnings — it counts toward income tax, National Insurance and usually pension.
- The calculator does not model shift allowances quoted as flat per-shift or per-night sums; convert those to an hourly equivalent first.
How to value a night-shift premium
How to read a night-shift job ad
Job ads describe night premiums in at least four different ways, and they are not interchangeable. “£15/hr + 20%” is a percentage uplift. “£15/hr + £2/hr nights” is a cash uplift. “£2,000 annual night allowance” is a flat sum. “Up to £720 a week on nights” is a total that already includes the premium. Before comparing two ads, convert everything to the same unit — annual pounds is the only one that never lies.
The worked example shows why. Twenty per cent sounds modest until it becomes £120 a week and £6,240 a year. A £2-an-hour cash uplift on 40 night hours is £80 a week, or £4,160 a year. And a £2,000 flat annual allowance on the same hours is worth barely £0.96 an hour — less than half the percentage deal. Employers quote whichever figure flatters the offer; the calculator quotes the one that pays your rent.
Watch for the hours the premium actually applies to. Some contracts pay the uplift only on hours worked between fixed times — say 10pm and 6am — so a 12-hour shift starting at 6pm earns the premium on only half its hours. Others pay it on the whole shift. The difference between those two wordings on a 48-hour week is thousands a year.
- Percentage uplift, cash uplift, flat allowance and all-in weekly totals are four different wordings — convert to annual pounds before comparing.
- 20% on £15/hr across 40 night hours is £120 a week: £6,240 a year.
- £2/hr cash uplift on the same hours is £4,160 a year; a £2,000 flat allowance is about £0.96 an hour.
- Check which hours count as night hours — a 10pm–6am window halves the premium on an evening-start shift.
There is no legal night premium
This surprises people, so it bears repeating: UK law does not require any extra pay for night work. The Working Time Regulations limit night workers to an average of 8 hours in each 24-hour period and require free health assessments, but they say nothing about rates. Your premium is entirely a matter of contract and negotiation.
That has two practical consequences. First, the premium can be changed — an employer that currently pays 30% can consult on reducing it, and new starters can be offered worse terms than existing staff. Get the premium written into your contract rather than relying on custom and practice. Second, the premium counts as ordinary pay for minimum-wage purposes, so an employer cannot use a “premium” to disguise base pay that sits below the legal floor — total hourly pay including the uplift must clear it.
Agency night workers should check whether the premium in the agency's advert matches the hirer's actual rate. The agency sets your pay, and advertised premiums sometimes describe the hirer's rate card rather than what the agency passes on.
Annualise the premium before you decide
Hourly figures flatter small differences and hide large ones. A £1-an-hour premium sounds like pocket money; on 40 hours a week it is £2,080 a year — roughly the cost of a used car, or a month and a half of the average rent. A 10-percentage-point difference in premium between two warehouse offers at £14 an hour is £2,912 a year. Nobody would ignore a £2,912 pay gap quoted directly, but quoted as “20% versus 30%” it barely registers.
Annualising also exposes the trap of the slightly-higher base with no premium. An offer of £16 an hour with no night uplift pays £33,280 a year on 40 hours. An offer of £14 an hour with a 30% night premium pays £37,856. The first advert looks better in 72-point type; the second pays £4,576 more. Run both through the calculator and compare the annual totals, not the headlines.
Remember that the premium usually applies to overtime worked at night too, unless the contract says otherwise — which is one more reason to read the overtime clause alongside the night clause.
- £1 an hour on 40 hours a week is £2,080 a year — annualise everything.
- £14/hr + 30% nights (£37,856 a year) beats £16/hr with no premium (£33,280 a year) by £4,576.
- Compare offers on annual total pay, not on the biggest hourly number in the advert.
- Check whether the premium applies to night overtime hours as well.
Tax, National Insurance and pensions on the premium
The premium is earnings like any other, so it is taxed at your marginal rate — 20%, 40% or 45% depending on where your total pay lands — and it attracts employee National Insurance at 8% up to £50,270 and 2% above. On the worked example, the £6,240 annual premium of a basic-rate taxpayer costs £1,248 in income tax and £499.20 in National Insurance, leaving £4,492.80 of the uplift in hand.
For most people the premium is also pensionable: it counts toward the qualifying earnings on which auto-enrolment contributions are calculated, and salary-sacrifice arrangements apply to it automatically. That is a quiet benefit — the premium is building your pension as well as your pay packet.
The one tax warning that matters: a decent premium can push total pay over a threshold you were comfortably under. Crossing £50,270 moves the slice above it to 40% tax, and crossing £100,000 starts withdrawing your personal allowance. If the premium takes you near a boundary, the take-home calculator shows exactly where you land.
Questions to ask before you accept nights
The premium is only one term in the contract. Ask whether it is consolidated — baked into your hourly rate so it counts toward holiday pay and overtime — or a separate allowance that can be removed more easily. Ask whether it applies during annual leave: holiday pay should reflect the premium if it is part of your normal remuneration, but flat allowances are a greyer area.
Ask what happens on bank holidays and sick days. Some employers pay an enhanced premium on bank-holiday nights; others pay the standard one. Statutory sick pay does not include any premium at all, so a long illness on a premium-heavy contract hurts more than the base rate suggests — income protection insurance is worth a look if nights are your long-term plan.
Finally, ask about the review clause. Premiums set as percentages rise automatically with base-pay increases; premiums set as cash amounts erode with inflation unless they are reviewed. A £2-an-hour uplift agreed in 2022 is worth noticeably less in real terms in 2026.
- Is the premium consolidated into your rate, or a separate allowance?
- Does it apply during annual leave, bank holidays and overtime?
- Sick pay usually excludes the premium — know the gap before you need it.
- Percentage premiums rise with pay deals; cash premiums erode unless reviewed.
About this calculator
What it covers, and what it does not
This calculator values night-shift premiums for employees paid through PAYE in the UK. Enter your base hourly rate, your night premium as a percentage, and your weekly night hours, and it returns the premium per week, per month and per year alongside your total night-shift pay.
It does not convert flat per-shift or annual allowances — translate those to an hourly figure first — and it does not model the Working Time Regulations limits on night hours, which are a scheduling matter for your employer. Tax on the premium is shown at 2026/27 rates; for a full salary picture including the premium, use the take-home pay calculator.
Night-shift premium questions
Is there a legal minimum night-shift premium?
No. UK law limits how night work is scheduled — night workers are generally limited to an average of 8 hours in each 24-hour period — but it sets no minimum uplift. Your premium is whatever your contract says. That is why two warehouses on the same industrial estate can pay 15% and 35% for the same unsocial hours, and why the premium is always worth negotiating.
Is the night premium taxed?
Yes, as ordinary earnings at your marginal rate: 20%, 40% or 45% income tax plus 8% or 2% employee National Insurance, depending on your total pay. On the worked example — £6,240 of annual premium for a basic-rate taxpayer — the deductions are £1,248 income tax and £499.20 National Insurance, leaving £4,492.80. The premium is also usually pensionable.
Does the premium count toward the minimum wage?
Yes. Minimum-wage law looks at your total hourly pay, premium included, so the uplift cannot be used to disguise a base rate below the legal floor. If anything, this protects you: the premium is part of your pay for every statutory purpose, including holiday-pay calculations where it forms part of your normal remuneration.
How do I compare a percentage premium with a cash-per-hour premium?
Convert both to annual pounds on the same hours. Twenty per cent on £15 an hour across 40 night hours is £120 a week, or £6,240 a year. A £2-an-hour cash uplift on the same hours is £80 a week, or £4,160 a year. The percentage wins by £2,080 — a gap that is invisible when you compare “20%” against “£2” in the adverts.
Do I get the premium on overtime worked at night?
Usually, unless your contract says otherwise. Most contracts apply the night uplift to all hours worked during night hours, including overtime, and then apply the overtime multiplier to the uplifted rate — so time-and-a-half on a £15 base with a 20% night premium is 1.5 × £18 = £27 an hour. Check the exact wording: “overtime at 1.5× the night rate” and “overtime at 1.5× base plus night premium” can differ.
What if the premium is a flat amount per shift?
Divide it by the shift length to get the hourly equivalent, then enter that as a cash uplift. A £15 per-shift premium on a 12-hour shift is £1.25 an hour; on an 8-hour shift it is £1.88 an hour. Flat premiums favour short shifts and penalise long ones, which is worth knowing before you volunteer for twelves.
Does night-shift pay affect my pension?
In almost all cases the premium counts as pensionable earnings: it feeds into the qualifying earnings band (£6,240 to £50,270) on which auto-enrolment contributions are calculated, and salary-sacrifice arrangements apply to it. Your 5% employee contribution and your employer's 3% are both slightly higher because of the premium — a small but real long-term benefit of unsocial hours.
I work part-time nights. Does the calculator still work?
Yes — just enter your actual weekly night hours. The premium scales linearly: 20 hours at the worked-example rates gives a £3,120 annual premium instead of £6,240. One part-time caution: if your total earnings sit near the £12,570 personal allowance or the auto-enrolment trigger of £10,000, the premium can be the difference between paying tax or not, and between being enrolled in the pension or not.
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Sources
- gov.uk — Night working hours. Night workers are generally limited to an average of 8 hours in each 24-hour period under the Working Time Regulations; accessed 23 September 2026.
- gov.uk — National Minimum Wage and National Living Wage rates. Night premiums count as pay for minimum-wage purposes — total hourly pay including the premium must clear the legal floor; accessed 23 September 2026.
- gov.uk — Income Tax rates and Personal Allowances. Night premiums are taxed as ordinary earnings at 20%, 40% or 45% in 2026/27; 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.