What Overtime Is Actually Worth
The multiplier applies to the whole hour, entitlement depends on your contract rather than staying late, and it is not taxed at a special rate.
Three things about overtime are widely misunderstood, and all three cost people money in different directions.
The multiplier applies to the whole hour
Time and a half at 15 an hour means 22.50 per overtime hour. Not 15 plus 7.50 of extra on top.
This sounds obvious written down and is regularly got wrong when people estimate a week’s pay in their head. Work 48 hours at 15 with a 40-hour threshold:
basic 40 x 15 = 600
overtime 8 x 22.50 = 180
gross 780
Your effective rate for that week is 16.25 an hour. Not 15, and not 22.50.
Entitlement depends on your contract, not on staying late
This is the one that catches people out, and it varies enormously.
| Where | Statutory position |
|---|---|
| United States | Time and a half beyond 40 hours a week for non-exempt employees under federal law. Some states add daily thresholds. |
| United Kingdom | No statutory overtime premium at all. Pay is whatever your contract says, provided the average stays above minimum wage. |
| EU | The Working Time Directive caps average weekly hours but leaves premiums to member states and contracts. |
| Australia | Set by the relevant award or agreement, commonly 1.5x then 2x. |
| India | Typically twice the ordinary rate under the Factories Act for covered workers. |
The UK position surprises people regularly. There is no legal right to extra pay for extra hours. Many contracts include a clause requiring “reasonable additional hours” with no premium, which makes your effective hourly rate a far more useful number than your salary.
Salaried does not automatically mean no overtime
In the US, entitlement turns on being classified exempt or non-exempt, which depends on your duties and salary level rather than simply being paid a salary.
Misclassification is common and recoverable, sometimes for years of back pay. If you are salaried, working long hours and doing largely non-managerial work, the classification is worth checking rather than assuming.
The tax misconception
Overtime is not taxed at a special rate. It is ordinary income.
The belief that it is comes from withholding. Payroll systems often calculate deductions as though every paycheque reflected your usual earnings, so a big overtime week gets withheld as if you earned that much every week. That pushes more into higher bands temporarily. It corrects over the year or at filing.
You may genuinely cross into a higher marginal band, but only the portion above the threshold is taxed at the higher rate. Extra work never leaves you with less money. If it appears to, you are looking at withholding rather than tax.
Working out what it is really worth
Overtime raises your weekly pay and lowers your effective hourly rate for the week, because the extra hours are paid at a premium but your life is not.
More usefully: run your salary through the salary converter using the hours you actually work rather than your contracted ones. A 60,000 salary is 28.85 an hour at 40 hours. At 50 hours it is 23.08, and you have taken a 20% pay cut that appears on no payslip and gets discussed in no review.
For unpaid overtime, that calculation is the whole story. For paid overtime, the question is whether the premium compensates you enough for the hour, which is a personal judgement the arithmetic can inform but not answer.
Keep your own record
Payroll errors are usually genuine and only ever corrected when someone notices.
- Record actual start and finish times the same day, not from memory at the end of the month
- Note breaks separately, including ones you did not get to take
- Check every payslip against your own figures
- Keep your own copy rather than relying on a system your employer controls
The time duration calculator handles shifts crossing midnight and converts to the decimal hours payroll uses, which is the other place errors hide. Eight hours thirty minutes is 8.5 on a payslip, not 8.30. Reading it as 8.30 undercounts you by eighteen minutes a shift, or roughly an hour and a half a month on a five-day week.
Gross pay only, before tax and deductions. Overtime entitlement depends on your contract and local law, and nothing here is employment advice.
Sources
Every factual claim above traces to one of these. Follow them rather than taking this article's word for it.
- Rates and thresholds for employers HM Revenue and Customs
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