Bonus tax in Ireland: why the deductions look high

This guide explains how PAYE, USC and PRSI can stack in a bonus month. It is written for scenario planning, and your payslip can differ based on payroll settings and personal circumstances.

Open the calculator Bonus calculator

What usually causes the “shock”

PAYE moves into the higher band when the bonus pushes taxable income higher.
USC bands can change within the same payslip, so the extra euro is charged at a higher USC rate.
PRSI still applies on the bonus in many employee scenarios.

How to estimate bonus take-home

Run your base salary scenario in the calculator (monthly view).
Add the bonus by increasing gross salary for a scenario comparison.
Compare the change in net pay and the change in each deduction line.

FAQ

Why is my bonus taxed at a high rate in Ireland?

A bonus is usually taxed like salary, but it can push your income into higher PAYE and USC bands for that payslip. When PAYE, USC, and PRSI all apply on the same payment, the combined marginal deduction can look very high.

Is bonus taxed differently from salary?

In many payroll setups, a bonus is treated as normal taxable pay. The difference you see is usually because a large one-off payment crosses thresholds in a single month, not because a separate “bonus tax” exists.

How can I estimate the take-home amount of my bonus?

Model two scenarios: (1) salary only and (2) salary plus bonus. Compare the change in net pay and the change in PAYE, USC and PRSI. Use the annual view for budgeting and the monthly view for payslip-style scenarios.

Recommended Next Steps

All Tools