How Overtime Pay Is Taxed in the UK 2026/27

You put in extra hours, check the following payslip, and feel like you barely broke even. Overtime pay is one of the most common sources of payslip confusion in the UK, and the frustration is understandable. The deductions can seem disproportionate, the take-home feels smaller than expected, and some workers genuinely wonder whether working overtime is worth it financially.

The short answer is that overtime is not taxed differently from your regular salary. It goes through PAYE like any other earnings. The reason it can feel heavily taxed is down to how PAYE projects your income each month, not a penalty for extra hours worked. Understanding that distinction makes the whole thing considerably easier to plan for.

This guide explains exactly how overtime is taxed in the UK, walks through realistic examples at different salary levels, and covers the practical steps to check whether your payslip figures are correct.

Overtime pay in the UK is taxed through PAYE at the same income tax and National Insurance rates as your regular salary. There is no special overtime tax rate. The deductions can appear larger in an overtime month because PAYE uses your elevated monthly earnings to project your annual income, which may temporarily push some earnings into a higher tax band. This usually self-corrects in subsequent months.

Key Takeaways:

• Overtime is taxed as normal income through PAYE, not at a special rate
• Income tax self-corrects over the year if overtime pushes you into a temporary higher band
• National Insurance on overtime is final and does not self-correct
• Student loan deductions increase in overtime months and do not self-correct
• Every pound of overtime increases your take-home pay, even if the increase is proportionally smaller
• Higher rate tax only applies to earnings above the threshold, not all your income

Is Overtime Taxed Differently in the UK?

No. HMRC does not operate a separate tax rate for overtime. Overtime earnings are employment income, and they are subject to income tax and National Insurance through PAYE in exactly the same way as your contracted hours. There is no surcharge for extra hours, no special levy, and no HMRC rule that makes overtime inherently less tax-efficient than regular pay.

What does happen is that overtime increases your gross earnings for the pay period in which it is paid. PAYE then calculates tax on that elevated figure. If the increase is significant, it can temporarily push your monthly earnings into a band where a higher tax rate applies, or it can increase your National Insurance and student loan deductions for that month. The effect on your take-home pay can feel noticeable even when the underlying rules are working exactly as intended.

How PAYE Calculates Tax on Overtime

To understand why overtime can feel heavily taxed, it helps to know what PAYE is doing behind the scenes each pay period.

The Monthly Projection

For a monthly-paid employee, PAYE takes your gross pay for that month, multiplies it by twelve, and uses the result as an estimate of your annual income. It then calculates the income tax due on that projected annual figure and deducts one-twelfth of it from your pay.

In a normal month, this works smoothly. Your regular salary multiplied by twelve equals your actual annual income, and the tax deducted is proportionate. In an overtime month, your gross pay is higher than usual. PAYE still multiplies it by twelve, which produces an inflated annual projection. If that projection crosses a higher tax band threshold, PAYE will apply the higher rate to the portion of earnings above the threshold, even if your real annual salary never comes close to that band.

In subsequent months, when your gross pay returns to normal, PAYE's cumulative calculation recognises that the year-to-date tax paid is ahead of where it should be. It adjusts by deducting less income tax in those following months until the balance corrects. Over the full tax year, the total income tax you pay on overtime earnings is correct for your actual annual income.

The 2026/27 Income Tax Bands

For an employee earning £2,800 per month in a normal month, PAYE projects annual earnings of £33,600. All taxable earnings fall within the basic rate band. In an overtime month where gross pay rises to £3,800, the projection becomes £45,600. Still within the basic rate band, so the deductions increase proportionally but no higher rate tax applies.

However, if the same employee has a particularly heavy overtime month and earns £4,500 gross, PAYE projects £54,000. That crosses the higher rate threshold of £50,270. PAYE will apply 40% to the portion of that month's taxable earnings above the monthly equivalent of the higher rate threshold. In reality, this employee's annual salary does not reach £50,270, so the higher rate tax will self-correct over the rest of the year.

National Insurance on Overtime

National Insurance is calculated per pay period and does not carry a cumulative year-to-date correction. The 2026/27 employee Class 1 NI rates are 8% on monthly earnings between £1,047.50 and £4,189.17, and 2% above £4,189.17. When overtime increases your monthly gross above these thresholds, the higher NI deduction for that month is final. It does not reduce in subsequent months to compensate.

However, there is a nuance worth knowing. Once monthly earnings exceed £4,189.17 (the monthly equivalent of the Upper Earnings Limit), the NI rate drops from 8% to 2% on any additional earnings. This means overtime that pushes earnings above that threshold attracts a lower NI rate on the excess, not a higher one. Workers in lower salary brackets pay 8% NI on their overtime earnings. Those in higher brackets who already exceed the Upper Earnings Limit in their regular pay only pay 2% NI on overtime.

Student Loan Deductions

Student loan repayments are calculated on gross earnings above the plan threshold for each pay period separately, with no cumulative adjustment. An overtime month increases the deduction for that specific month. These repayments represent the correct amount owed on those earnings and do not self-correct in later months.

Pension Contributions

Whether pension contributions are deducted from overtime pay depends on your employer's scheme rules. Some schemes calculate contributions on all earnings including overtime. Others base contributions only on contracted salary. If overtime is included in qualifying earnings, your pension deduction in an overtime month will be higher than usual.

Does Working Overtime Actually Cost You Money?

This is one of the most persistent misconceptions about overtime taxation in the UK. Some workers believe that earning more through overtime can somehow reduce their net income, perhaps by pushing them into a higher tax band and leaving them worse off overall. This cannot happen under the UK income tax system.

Income tax in the UK is marginal. The higher rate of 40% only applies to earnings above £50,270 per year, not to all of your income. If overtime pushes your earnings above that threshold, only the portion above £50,270 is taxed at 40%. Everything below it continues to attract the same rates as before. Your take-home pay always increases when you earn more, even if the increase is proportionally smaller than you expected after deductions.

The correct framing is not that overtime costs you money but that each additional pound earned above a threshold is subject to a higher marginal rate. A basic rate taxpayer working overtime keeps approximately 72p in every additional pound after income tax and NI. A higher rate taxpayer keeps around 58p. Both are still financially better off from the overtime work.

Real UK Overtime Tax Examples

The following examples use 2026/27 rates for employees in England, Wales, or Northern Ireland on a standard 1257L tax code. Pension is excluded unless stated. Use our income tax calculator for figures specific to your salary and circumstances.

Example 1: Basic Rate Worker, £28,000 Salary

Kezia earns £28,000 per year, which is £2,333 per month. In March she works significant overtime and her gross pay rises to £3,100 for the month.

Kezia earned £767 in overtime and took home approximately £552 extra. The deductions on the overtime earnings were roughly £215, split between income tax (£153) and NI (£61). Her annual income including the overtime month stays well within the basic rate band, so no higher-rate tax applies and no correction is needed in subsequent months.

Example 2: Worker Near the Higher Rate Threshold, £45,000 Salary

Marcus earns £45,000 per year (£3,750 per month). He works considerable overtime in June and his gross pay for that month reaches £5,500. PAYE annualises this as £66,000, which crosses the higher rate threshold of £50,270.

Marcus earned £1,750 in overtime and received approximately £1,029 extra in his account. The income tax in June is higher than usual because PAYE temporarily treated some earnings at 40%. In July and August, assuming normal salary months, his PAYE deductions will be slightly lower than usual as the cumulative system corrects the year-to-date position. His total income tax for the year remains accurate for a £45,000 plus overtime salary.

His NI deduction increased only slightly in the overtime month because his regular salary already occupies most of the 8% band. The overtime earnings that push him above £4,189 per month attract only 2% NI, which is why the NI increase is proportionally small.

Example 3: Higher Rate Taxpayer, £60,000 Salary

Rachel earns £60,000 per year (£5,000 per month). She already pays higher rate income tax on part of her salary. When she works overtime, those additional earnings are also taxed at 40% because her income already exceeds the higher rate threshold.

Rachel earned £1,500 in overtime and received approximately £870 extra. She keeps roughly 58p in every additional pound, with 40% income tax and 2% NI applied to the overtime earnings. Unlike Marcus, there is no temporary higher rate effect that will correct itself later. Rachel genuinely pays 40% on her overtime because her annual income already exceeds £50,270. The deductions in her overtime month are final and correct.

Example 4: Overtime With a Student Loan

Tom earns £32,000 per year and has a Plan 2 student loan. His regular monthly gross is £2,667. He works overtime and earns £800 extra in a particular month, making his gross pay £3,467.

The Plan 2 threshold is £29,385 per year, or £2,448.75 per month. In a normal month Tom pays 9% on £218.25 (£2,667 minus £2,448.75), which is approximately £20. In his overtime month, his student loan deduction becomes 9% of £1,018.25 (£3,467 minus £2,448.75), which is approximately £92. The extra £72 in student loan deductions represents the correct repayment on the overtime earnings above the threshold. It is not refunded in future months.

Use our student loan repayment calculator to see the monthly deduction for your plan and any monthly earnings figure including overtime.

Example 5: Overtime With Pension Contributions

Anna earns £38,000 per year and contributes 5% to her workplace pension via salary sacrifice. Her scheme includes overtime in qualifying earnings. In a month where she earns £600 in overtime, her pension contribution on the overtime is 5% of £600 = £30. Because her contributions are salary sacrifice, the pension deduction reduces her taxable gross. She saves approximately £6 in income tax and £2.40 in NI on that portion. The net cost to her take-home pay from the pension deduction on overtime is £21.60 rather than £30.

Why Overtime Feels Heavily Taxed

Several factors combine to make overtime deductions feel disproportionate.

The PAYE Projection Effect

As explained above, PAYE uses your current month's earnings to estimate your annual income. An elevated overtime month produces an elevated projection, which can temporarily trigger higher-rate tax even for basic rate workers. The tax corrects itself over the year, but the month-on-month variation in deductions can be disorienting.

All Deductions Landing Together

When overtime increases your gross pay, every percentage-based deduction increases proportionally. Income tax, NI, pension, and student loan all go up simultaneously. Seeing multiple larger deductions at once makes the combined effect feel larger than any individual component would suggest.

Comparing Gross With Net

If you know you worked £800 of extra hours, you instinctively compare the gross figure with the net payment you actually receive. The gap between £800 earned and perhaps £580 received feels significant, even though it reflects normal deduction rates. The same comparison applied to your regular salary would produce a similar ratio, but because regular pay is spread across twelve identical months, the effect is less visible.

Non-Cumulative Deductions

NI and student loan deductions in an overtime month are permanent. They do not self-correct the way income tax does. This means even after the income tax position has normalised in later months, the NI and student loan amounts from the overtime month remain deducted. The total amount deducted over the year on overtime earnings is correct, but the non-cumulative deductions create a real cost in the overtime month that is not recovered.

Overtime vs Salary: What You Actually Keep

These figures exclude pension contributions and student loan deductions, which vary by individual. A Plan 2 student loan adds a further 9% reduction on earnings above the threshold. A 5% salary sacrifice pension contribution reduces take-home further but reduces the tax and NI base too, so the net cost is lower than the gross contribution percentage suggests.

Common Overtime Tax Mistakes

Assuming Overtime Has a Special Tax Rate

There is no HMRC rule that taxes overtime at a higher rate. The deductions are the same income tax and NI rates that apply to all earnings. The reason deductions appear larger in an overtime month is the PAYE monthly projection, not a special penalty.

Thinking You Can End Up Worse Off From Working Overtime

This cannot happen under the UK marginal tax system. Higher rate tax only applies to the portion of earnings above the threshold, not to all your income. Every additional pound of overtime earnings always increases your take-home pay, even if the marginal increase is smaller than expected after deductions.

Expecting NI to Self-Correct

Income tax does self-correct cumulatively through PAYE. NI does not. Workers who see their income tax return to normal in the months after an overtime period sometimes wonder why their overall take-home pay does not fully bounce back. The NI and student loan deductions from the overtime month are permanent and correct for those earnings.

Not Accounting for Pension on Overtime

If your pension scheme includes overtime in qualifying earnings, your pension deduction in an overtime month will be higher. Workers who forget this are sometimes surprised by the additional reduction in take-home pay. Check your scheme documentation if you are unsure whether overtime is included in qualifying earnings.

Confusing PAYE Timing With Permanent Over-Taxation

When income tax deductions look unusually high in an overtime month, the first instinct is often to assume a payroll error. In most cases the calculation is correct for that specific month. If you want to verify, compare your actual year-to-date income tax with what the correct annual tax should be for your year-to-date earnings. Our income tax calculator can help you make that comparison.

How to Check Your Overtime Pay Is Taxed Correctly

1. Identify your total gross pay for the overtime month. This should appear clearly on your payslip and include your regular pay plus any overtime additions. Our guide to reading your PAYE payslip explains where each figure appears.
2. Calculate your expected income tax for that month. Subtract your monthly personal allowance of £1,047.50 from the total gross. Apply 20% to taxable earnings up to £4,189.17. Apply 40% to any taxable earnings above that up to the additional rate threshold. Compare with your payslip.
3. Check your National Insurance deduction. Apply 8% to monthly earnings between £1,047.50 and £4,189.17, and 2% to anything above. Use our National Insurance calculator to get the figure for your overtime month gross quickly.
4. Verify your pension contribution rate. If your scheme includes overtime, the contribution should be your agreed percentage applied to the full gross pay. If it seems higher or lower than expected, check your scheme documents or speak to HR.
5. Check your student loan deduction. Apply 9% (or 6% for postgraduate loans) to the amount your gross pay exceeds your plan threshold for that month. Use our student loan calculator if you want a quick check.
6. Compare your tax code with HMRC. If your tax code looks unusual, such as an emergency W1/M1 or 0T code, that can amplify the deductions in an overtime month. Log into your HMRC personal tax account at gov.uk/personal-tax-account to check. Our guide to checking your tax code covers the steps.
7. Look at the following month's payslip. If higher-rate tax was temporarily applied due to the PAYE projection, the following month's income tax should be noticeably lower than usual as the cumulative system corrects. If it is not lower and your normal salary has returned, raise it with your payroll team.

Can You Reduce the Tax on Overtime?

Overtime earnings are subject to the same tax rules as all earnings, so there are no overtime-specific reliefs. The options that reduce tax on regular salary also apply to overtime.

Salary Sacrifice Pension Contributions

If your employer supports salary sacrifice and your scheme includes overtime in qualifying earnings, any pension contributions taken from overtime are deducted from your taxable gross before income tax and NI are calculated. This reduces the tax base on the overtime earnings. For a basic rate taxpayer contributing 5%, every £100 of overtime directed to the pension saves £5 in income tax and £4 in NI on top of the actual pension contribution. Use our pension tax relief calculator to see the combined effect for your contribution rate and salary.

Checking Your Tax Code Is Correct

An incorrect tax code, particularly an emergency code applied to your main job, makes overtime deductions larger than they should be. If you are on a 0T or BR code in error, the temporary higher-rate tax in an overtime month will be more pronounced and may not self-correct as expected. Getting your code corrected before an overtime-heavy period is worthwhile. See our guide to sudden tax code changes for the most common reasons codes shift unexpectedly.

Hourly Rate Awareness

If you want to understand your effective hourly rate including the after-tax value of overtime hours, our hourly rate calculator converts salary to an hourly figure and can help you work out the net value of additional hours at your current marginal tax rate. This is particularly useful if you are weighing up whether to take on extra shifts or comparing different pay arrangements.

Overtime Pay for Self-Employed Workers

Self-employed workers do not have PAYE deducted at source. Additional hours worked simply increase your gross income for the year, which in turn increases your self assessment tax and Class 4 NI liability. The same marginal rate logic applies: more income means more tax, but you always keep a portion of every extra pound earned.

Self-employed workers pay Class 4 NI at 6% on profits between £12,570 and £50,270, and 2% above that. Income tax applies at the same rates as for employees. The difference is that self-employed workers pay it annually through self assessment rather than monthly through PAYE, which means the financial impact of a busy period is felt as a lump sum payment rather than as monthly payslip deductions. Our self-employed tax calculator can show you the combined income tax and NI liability on any profit level.

Final Thoughts

Overtime pay is not taxed differently from regular earnings in the UK. The same income tax rates and National Insurance rules apply, and the deductions that appear on your payslip in an overtime month follow the same logic as any other month where your gross pay is higher than usual. The reason the amounts can look disproportionate is the way PAYE projects monthly earnings across the year, not any special overtime-specific rule.

Income tax deductions will self-correct through PAYE in subsequent months if the projection overestimated your annual income. NI and student loan deductions do not self-correct and represent the correct amount owed on those earnings. And while the deductions can feel substantial, every pound of overtime always increases your take-home pay. That is a product of the UK's marginal tax system, not an exception to it.

To check how much you should be keeping from overtime at your salary level, use our income tax calculator with your overtime month gross as the input. Our National Insurance calculator can verify the NI deduction separately, and our hourly rate calculator is useful for understanding the after-tax value of additional hours at different pay rates. If your overtime deductions look genuinely wrong rather than just larger than expected, our guide to reading your PAYE payslip covers every deduction line in detail.

Official Sources and Further Reading

GOV.UK Official Guidance:

• PAYE and employee tax - Official guidance on how PAYE works
• Income Tax Rates and Allowances - Current tax bands and thresholds
• National Insurance rates - Employee and employer NI rates
• Student loan repayments - Repayment thresholds and plans

This guide provides general information about overtime pay and tax for 2026/27. Individual circumstances vary. For personalised advice about your specific situation, consult a qualified tax adviser or accountant. Always check GOV.UK for current rates and guidance.