Overtime, bonuses and how they are taxed in Ireland
Reviewed by Mellow Editorial Team, HR & payroll content team
Overtime and bonuses are taxed in Ireland in exactly the same way as regular salary — through the PAYE system, subject to income tax, USC and PRSI. There is no separate rate or special treatment for these payments; they are simply added to the employee's gross pay for the pay period and taxed accordingly.
Why overtime and bonuses are not taxed differently
A common misconception is that overtime or bonuses attract a punitive "extra" tax rate. They do not. Irish tax law treats all employment income the same way. What makes overtime and bonus payments feel heavily taxed is straightforward: they push gross pay higher in a given period, which can move more of that pay into the higher income tax band or into a higher USC band than a normal week or month would.
The rate bands and credits are the same regardless of what type of pay generates the income.
How PAYE applies to these payments
When you add overtime or a bonus to an employee's pay run, your payroll software applies the employee's tax credits and rate bands to their cumulative or week-one income position, depending on how Revenue has instructed you to tax them.
Income tax operates at 20% on income up to approximately €44,000 for a single person, and 40% on income above that. A bonus paid in, say, October sits on top of everything the employee has already earned that year. If they are already at or near the standard-rate cut-off, most or all of the bonus will be taxed at 40%.
USC is charged in bands:
- 0.5% on the first tranche of income
- 2% on the next band
- 3% on the next band
- 8% on income above the highest threshold
Again, because a bonus is added on top of existing earnings, it typically attracts USC at the higher bands.
PRSI (Class A, which covers most employees) is charged at approximately 4.1% from the employee and 11.15% from the employer on gross pay. There are no separate bands to navigate here — the rates apply to all reckonable earnings including overtime and bonuses.
Tax credits reduce the final income tax liability. Ireland does not use a personal allowance system. Credits — such as the personal tax credit and the employee (PAYE) tax credit — are applied after the tax is calculated, not before. They are allocated to each pay period across the year, so a large one-off bonus does not automatically "use up" credits faster.
Practical impact: a worked example in principle
If an employee normally earns within the standard rate band each month, a significant annual bonus paid in a single lump sum may temporarily push their pay well into the 40% band and the upper USC bands for that period. The effective deduction on the bonus itself can therefore look very high — often 50% or more for a higher earner when income tax at 40%, USC at 3%–8% and PRSI at 4.1% are combined.
This is not a mistake. It reflects where the employee sits in their cumulative income position for the year. If you use cumulative basis payroll (the standard approach), Revenue's instructions to your software will ensure credits and bands are applied correctly across the whole year.
Reporting and timing
Under real-time reporting rules, you must submit a payroll submission to Revenue via ROS on or before the date you pay the employee. This applies to bonus and overtime payments just as it does to regular salary. If you are running an out-of-cycle bonus payment, you need to process it as a separate payroll run and submit before the funds leave your account.
Late or missing submissions can generate penalties, so if a bonus is approved at short notice, make sure your payroll process can accommodate the submission deadline.
Employer PRSI on overtime and bonuses
One cost that sometimes catches employers off guard: employer PRSI of 11.15% applies to the full gross payment, including overtime and bonuses. A €5,000 bonus therefore carries an additional employer PRSI cost of approximately €557.50 on top of the gross amount. Build this into your budgeting when approving bonus payments.
What about salary sacrifice or pension contributions?
If an employee makes pension contributions through payroll, those contributions reduce the gross pay subject to income tax and USC (though not PRSI, in most cases). Some employers use this to help employees manage the tax impact of a large bonus — the employee directs some or all of the bonus into their pension rather than taking it as cash, reducing the immediate tax hit. With pension auto-enrolment through My Future Fund being introduced from 2026, the interaction between automatic contributions and variable pay is worth reviewing in your payroll setup.
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