If you’ve just worked extra hours and you’re staring at your payslip wondering whether the numbers add up, you’re not alone. Overtime Pay UK Overtime pay UK rules trip up a lot of employees — and quite a few employers too. Overtime Pay UK There’s no single legal formula that applies to every job, and the tax side of things confuses people even more, because overtime often pushes you into a higher tax bracket for that pay period even if your annual salary doesn’t change much Overtime Pay UK.
This guide walks through exactly how overtime pay works in the UK: what you’re legally entitled to, how your employer is supposed to calculate it, and how tax and National Insurance actually apply to those extra hours. Overtime Pay UK We’ll use real examples throughout so you can see the maths in action, not just the theory Overtime Pay UK.
Visit Now: https://www.taxsal.com/
What Counts as Overtime in the UK?
Overtime is any time you work beyond your normal contracted hours. That sounds simple, but the details matter.
There’s an important point that catches many workers off guard: UK law does not require employers to pay extra for overtime. Unlike some countries with a fixed “time and a half” rule written into legislation, the UK leaves overtime pay largely up to the employment contract.
What the law does guarantee is:
- You must be paid at least the National Minimum Wage or National Living Wage for every hour worked, including overtime hours, once averaged across the pay period.
- Your average working week (including overtime) generally shouldn’t exceed 48 hours, unless you’ve signed an opt-out agreement under the Working Time Regulations.
- Whatever overtime terms exist should be clearly set out in your contract or staff handbook.
So the real question isn’t “what does the law say I get paid for overtime” — it’s “what does my contract say.”
Contractual vs Non-Contractual Overtime
This distinction matters more than most people realise, especially when it comes to holiday pay and tax.
| Type | Description | Must It Be Paid? |
|---|---|---|
| Contractual overtime | Overtime that’s guaranteed and expected under your contract | Yes, at the agreed rate |
| Non-contractual (voluntary) overtime | Extra hours you can choose to work, often offered ad hoc | Only if agreed at the time; rate is discretionary |
| Compulsory overtime | Overtime your employer can require you to do, but isn’t guaranteed to offer | Paid only when it happens, at the agreed rate |
If overtime is a regular, expected part of your role, it usually needs to be factored into your holiday pay calculations too — something a lot of smaller employers get wrong.
How Is Overtime Pay Calculated?
Since there’s no statutory overtime rate in the UK, the calculation depends entirely on what your employer has agreed to pay. Overtime Pay UK That said, most UK employers follow one of a few common structures Overtime Pay UKOvertime Pay UK.
Common Overtime Pay Rates
- Flat rate – Overtime paid at your normal hourly rate, no extra premium.
- Time and a half – 1.5x your normal hourly rate. Overtime Pay UK This is the most common rate for weekday overtime.
- Double time – 2x your normal hourly rate, typically reserved for Sundays, bank holidays, or overnight shifts.
- Time off in lieu (TOIL) – Instead of extra pay, you bank the hours and take equivalent time off later.
Step-by-Step: Working Out Your Overtime Pay
Here’s how to calculate it yourself if you’re paid hourly, or salaried with a set overtime rate.
Step 1: Work out your normal hourly rate.
If you’re salaried, divide your annual salary by the number of contracted hours you work in a year Overtime Pay UK.
Example: Salary of £28,600 a year, working 35 hours a week (1,820 hours a year). £28,600 ÷ 1,820 = £15.71 per hour
Step 2: Apply your overtime multiplier.
If your contract offers time and a half: £15.71 × 1.5 = £23.57 per overtime hour
Step 3: Multiply by overtime hours worked.
If you worked 6 hours of overtime this month: £23.57 × 6 = £141.42 gross overtime pay
This gross figure is what gets added to your payslip before tax and National Insurance are deducted — which brings us to the part most people actually get stuck on.
How Is Overtime Taxed in the UK?
Here’s the bit that confuses almost everyone: overtime is taxed exactly the same way as your normal salary. Overtime Pay UK There is no separate “overtime tax rate” and no special deduction that applies only to extra hours.
What changes is your total taxable income for that pay period, and that can push you — temporarily — into paying a higher rate of tax on part of your pay Overtime Pay UK.
Rea More: GREAT Scholarships UK 2026 — Eligibility, Application Process & Deadlines Explained
Income Tax on Overtime
Your overtime earnings are added to your regular gross pay for that period and taxed under the normal Income Tax bands, using your tax code Overtime Pay UK.
For the 2025/26 tax year, the standard bands are:
| Band | Taxable Income | Tax Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Basic Rate | £12,571 to £50,270 | 20% |
| Higher Rate | £50,271 to £125,140 | 40% |
| Additional Rate | Over £125,140 | 45% |
(Scotland has different bands and rates — worth checking separately if you’re a Scottish taxpayer.)
If your overtime pushes your monthly pay high enough that year-to-date earnings cross into the next band, HMRC’s PAYE system will tax that portion at the higher rate — but only for that period. It evens out over the tax year through PAYE, so a big overtime month doesn’t permanently move you into a higher bracket; it just feels that way when you see the deduction.
National Insurance on Overtime
Overtime pay also counts toward your National Insurance contributions (NICs). Overtime Pay UK For most employees, Class 1 NICs are calculated as:
- 0% on earnings up to the Primary Threshold
- 8% on earnings between the Primary Threshold and the Upper Earnings Limit
- 2% on earnings above the Upper Earnings Limit
Because NICs are calculated per pay period (not cumulatively like Income Tax), a month with a lot of overtime can mean a noticeably bigger NIC deduction that specific month, even though your average NIC rate across the year balances out differently than Income Tax does.
Worked Example: Overtime and Take-Home Pay
Let’s say Sarah earns £2,383 gross per month in her normal salary and picks up an extra £200 in overtime one month.
| Normal Month | Overtime Month | |
|---|---|---|
| Gross pay | £2,383 | £2,583 |
| Income Tax (approx.) | £238 | £278 |
| National Insurance (approx.) | £143 | £159 |
| Take-home pay | £2,002 | £2,146 |
Notice that Sarah doesn’t keep the full £200 — after tax and NI, she keeps roughly £144 of it. Overtime Pay UK That’s a completely normal result and not a sign of an error; it simply reflects marginal tax and NI rates applying to the extra income, same as any pay rise would Overtime Pay UK.
Does Overtime Affect Your Tax Code?
No — your tax code itself doesn’t change because of overtime. Your tax code determines your tax-free Personal Allowance, and that stays fixed regardless of how many hours you work. What changes month to month is simply your taxable pay, which then determines how much of your income falls into each band.
Overtime and Pension Contributions
If you’re enrolled in a workplace pension, overtime pay is usually included in your pensionable earnings — but this depends on how your scheme is set up.
- Qualifying earnings basis: Overtime is typically included, since it counts as part of your gross pay Overtime Pay UK.
- Basic salary only basis: Some schemes only calculate contributions on your base salary, excluding overtime entirely.
It’s worth checking your pension scheme’s rules directly, since this affects both your contribution and your employer’s matching contribution.
Overtime and Universal Credit or Other Benefits
If you receive Universal Credit or other income-related benefits, extra overtime earnings in a given assessment period can reduce your benefit payment for that period, since Universal Credit is calculated based on actual earnings reported through PAYE (Real Time Information). Overtime Pay UK A month of heavy overtime could mean a smaller Universal Credit payment the following month, even if your overtime isn’t a regular thing Overtime Pay UK.
Can Your Employer Refuse to Pay Overtime?
Yes, in most cases — unless your contract guarantees payment for overtime. If overtime is voluntary and non-contractual, your employer isn’t legally obliged to pay for it beyond ensuring your average pay across the relevant period still meets minimum wage requirements.
If you believe you haven’t been paid correctly for overtime you’re contractually owed, the usual steps are:
- Check your written contract or staff handbook for the overtime clause.
- Raise it informally with your manager or HR first.
- Request a written breakdown of your pay calculation.
- If unresolved, raise a formal grievance.
- As a last resort, contact ACAS or consider an Employment Tribunal claim for unlawful deduction of wages.
Overtime Pay UK: Key Takeaways
- There’s no statutory overtime rate in the UK — it depends entirely on your contract.
- Overtime is taxed at the same Income Tax and NIC rates as your normal salary; there’s no special “overtime tax.”
- A big overtime month can temporarily push part of your pay into a higher tax band, but this evens out through PAYE over the year.
- Contractual overtime should be included in holiday pay calculations.
- Overtime may or may not count toward pension contributions, depending on your scheme.
- If you’re on Universal Credit, extra overtime earnings can reduce your benefit payment for that assessment period.
FAQ’s
Is overtime taxed more than normal pay in the UK?
No. Overtime is taxed using the same Income Tax bands and National Insurance rates as your regular salary. It can feel like it’s taxed more heavily if it pushes part of your pay into a higher band for that period, but the rate itself isn’t different.
Is my employer legally required to pay overtime?
Only if your contract says so. UK law doesn’t set a statutory overtime rate, though your total pay must still average out to at least the National Minimum Wage or National Living Wage.
What is the average overtime rate in the UK?
Time and a half (1.5x your normal hourly rate) is the most common rate for weekday overtime, with double time often applied to Sundays or bank holidays. However, this varies by employer and industry.
Does overtime count towards holiday pay?
If overtime is regular and contractual, it generally should be included when calculating holiday pay. Purely voluntary, occasional overtime is less likely to be included, though case law in this area has evolved over the years.
Can I refuse to work overtime?
If overtime is non-contractual and voluntary, yes. If your contract includes a compulsory overtime clause, you may be required to work it, subject to the 48-hour average working week limit (unless you’ve opted out).
Will overtime push me into a higher tax bracket permanently?
No. Income Tax under PAYE is calculated cumulatively across the tax year, so a one-off high-overtime month doesn’t permanently shift your tax bracket — your overall annual income determines your effective tax rate.
Does overtime affect my student loan repayments?
Yes. Student loan repayments are calculated based on your gross earnings above the relevant threshold, so a higher-overtime pay period will typically mean a slightly larger repayment that period.
How do I calculate my overtime pay if I’m salaried?
Divide your annual salary by your contracted annual hours to get your hourly rate, then apply your overtime multiplier (e.g. 1.5x) to that rate for each overtime hour worked.
Is time off in lieu (TOIL) taxed?
No, because TOIL isn’t a cash payment — you’re simply taking paid time off later using your normal pay rate for those days, so it’s taxed as ordinary salary when you take the leave, not separately.
What should I do if I think I’ve been underpaid for overtime?
Start by checking your contract, then raise it with your employer or HR in writing. If it’s not resolved, you can contact ACAS for free advice or consider an Employment Tribunal claim for unlawful deduction of wages.