Gross and net overtime at time-and-a-half or double time.
Net overtime
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Gross overtime
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Deductions
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Your breakdown
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Overtime is not taxed extra, but it is taxed at the top
There is a persistent myth that overtime is hit by some special punitive tax. It is not. Overtime pay is ordinary income and goes through the same PAYE, USC and PRSI system as your salary. What makes it feel heavily taxed is where it lands. Because overtime stacks on top of your regular earnings, it is taxed at your marginal rate, the rate on your last euro of income. For anyone already over their standard rate cut-off, that means 40 percent income tax, the top 8 percent USC band, and 4.1 percent PRSI all apply to each overtime euro. This tool models that higher-rate stack, which is the situation most overtime earners are actually in.
Building the marginal deduction rate
The combined bite on higher-rate overtime is the sum of three separate charges. Income tax takes 40 percent. USC, at the top band that applies once your total income passes €70,044, takes 8 percent. PRSI takes 4.1 percent. Add them and 52.1 percent of each gross overtime euro disappears in deductions, leaving 47.9 percent in your pocket. One honest note about how this calculator behaves: it applies that top 8 percent USC band to the overtime regardless of which income tax band you pick, so it always models the marginal position of a higher earner. If your total income is genuinely low enough to sit in a lower USC band, your real deduction rate would be gentler than the figure shown.
Ten hours at time-and-a-half on €25
Take someone on a €25 base hourly rate who works 10 hours of overtime at time-and-a-half, already a higher-rate taxpayer. The gross and net break down as follows.
When the multiplier is not the whole story
It is easy to fixate on the multiplier, but two other things change the real value of overtime. First, there is no legal entitlement to a premium rate for overtime in Ireland unless your contract or a collective agreement provides one, so time-and-a-half and double time are negotiated terms, not a statutory right. Always check your contract before assuming the higher multiplier. Second, if the overtime is what tips your annual income across the €44,000 standard rate cut-off, only the portion above that line is taxed at 40 percent, so a lower earner picking up occasional overtime keeps more of it than this higher-rate example suggests. A practical tip: if you regularly work paid overtime, ask whether time off in lieu is an option, since banked rest time is not taxed at all.
Will overtime push me into a higher tax bracket permanently?
No. Ireland does not tax your whole income at a higher rate once you cross the cut-off. Only the income above €44,000 is taxed at 40 percent, and only for as long as you earn it. A month of heavy overtime does not raise the rate on your base salary, and a quieter month simply means less is taxed at the top rate.
Why did my payslip deduct even more than this tool shows?
Usually it is emergency tax or a cumulative PAYE adjustment, not a higher rate on the overtime itself. If your tax credits or cut-off were not applied correctly in the pay period, you can overpay temporarily and it washes out over the year. Check your tax credit certificate on myAccount if the deduction looks off.