Correcting payroll errors in Ireland
Reviewed by Mellow Editorial Team, HR & payroll content team
Correcting a payroll error in Ireland means submitting an amended payroll submission through Revenue's Online Service (ROS) — there is no separate correction form, and the fix happens within the same real-time reporting framework you use for every normal pay run.
How Irish payroll reporting works and why it matters for corrections
Ireland operates a real-time PAYE system. Employers must submit a Payroll Submission Request (PSR) to Revenue on or before each payday. Every PSR contains employee-level detail: gross pay, income tax deducted, USC, and PRSI. Because Revenue receives this data in real time, any error in a PSR is visible to them almost immediately — and it affects the employee's tax record straight away. That's why corrections need to be made promptly and through the correct channel.
The two main correction routes
1. Amend the original submission
If you catch an error before the next pay period, you can submit an amended PSR for the same period. In ROS, you locate the relevant payroll submission, correct the figures, and resubmit. Revenue replaces the original with the amended version. This is the cleanest option when the error is recent and isolated.
2. Correct through the next payroll run
If a pay period has already closed and you're moving on to the next one, you can make an adjustment within that next PSR. You include a correction line for the affected employee that accounts for the under- or over-deduction. Revenue reconciles the corrected year-to-date figures against what was previously reported. This is the more common route when the error is discovered later in the cycle.
In both cases, you are working within ROS — there is no offline correction process or paper form.
What happens with tax, USC and PRSI
Each component of an employee's deductions needs to be corrected separately because they have different rates and different rules.
- Income tax runs at 20% up to approximately €44,000 for a single person and 40% above that. Ireland uses tax credits rather than a personal allowance, so the net tax payable depends on the employee's credit entitlements held on their Revenue Payroll Notification (RPN). If you over- or under-applied tax, correcting the RPN data and resubmitting will recalculate the liability.
- USC is banded: 0.5%, 2%, 3%, and 8% depending on earnings. A correction to gross pay will ripple through to the USC figure, so check each band is applied correctly in your payroll software after any amendment.
- PRSI Class A runs at approximately 4.1% for the employee and 11.15% for the employer. Both figures need to be accurate in the corrected submission because employer PRSI affects what you owe Revenue, not just what you deduct from the employee.
If you have been under-deducting from an employee and they are now aware of the arrears, it is good practice to discuss the recovery timeline with them before the next payroll run. Recovering a large sum in one deduction may cause hardship; spreading it across several pay periods is reasonable and should be documented.
Overpayments to employees
If you paid an employee more than they were owed — whether through a gross pay error or a system fault — you have a legal right to recover the overpayment, but you must handle it carefully under the Payment of Wages Act 1991. The deduction must be notified to the employee in advance, must be proportionate, and should generally not reduce their net pay below the national minimum wage in any given period. A written agreement setting out the repayment schedule is strongly advisable.
On the payroll side, once the employee repays or you recover via deduction, you submit a corrected PSR showing the accurate figures. Revenue updates the employee's record accordingly.
Keeping your records straight
Revenue can audit payroll records going back several years. For every correction you make, keep a clear internal record of: what the original error was, when it was identified, what was submitted to correct it, and the reference numbers from ROS. Your payroll software should generate an audit trail automatically, but it is worth maintaining your own notes alongside it, particularly for anything involving a manual override.
If you run payroll across multiple employees and discover a systematic error — for example, a software configuration that applied the wrong PRSI class — contact Revenue directly through MyEnquiries on ROS before attempting to correct a large volume of submissions. They can advise on the most efficient approach and, in some cases, may agree a bulk correction method rather than requiring individual amended PSRs.
For context on how this fits into a broader multi-country payroll setup, see how Mellow runs payroll across six countries.
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