Preparing for an HR or payroll audit in Ireland
Reviewed by Mellow Editorial Team, HR & payroll content team
Preparing for an HR or payroll audit in Ireland means having your records, submissions and processes in order before someone else checks them for you. Whether the audit is internal, triggered by a Revenue compliance check, or part of a wider due diligence exercise, the same core obligations apply.
What auditors actually look at
An HR or payroll audit in Ireland typically covers three areas: payroll accuracy and tax compliance, employment records and statutory entitlements, and internal process controls.
On the payroll side, Revenue auditors will want to confirm that you have been making real-time payroll submissions on or before each payday through ROS, that PAYE, USC and PRSI have been calculated and remitted correctly, and that employee tax credits have been applied using valid Tax Credit Certificates rather than emergency tax.
For HR records, the focus shifts to employment contracts, working time records, leave records and payslips. Auditors may check that employees are receiving at least 4 working weeks of statutory annual leave, that payslips are issued for every pay period, and that any deductions from pay are lawful.
Get your payroll records straight first
The most common audit findings in Irish payroll relate to incorrect USC banding, misclassification of workers, and gaps in real-time submissions. Before any audit, run a reconciliation between:
- Total gross pay per employee for the year
- The payroll submissions filed with Revenue via ROS
- The amounts actually remitted to the Collector-General
If those three figures do not match, find out why before an auditor does. Small rounding errors or a missed submission are usually fixable through a corrective payroll submission, but unexplained gaps attract more scrutiny.
Check your PRSI class allocation as well. Most employees on a standard employment contract are Class A, with an employee contribution of approximately 4.1% and an employer contribution of approximately 11.15%. Applying the wrong PRSI class — for example, treating a full employee as a self-employed contributor — is a significant compliance failure and one Revenue auditors look for specifically.
On USC, confirm that the correct bands have been applied throughout the year: 0.5% on the first band, then 2%, then 3%, rising to 8% on income above the higher threshold. Errors often arise when employees change status mid-year (for example, starting or ending medical card exemption).
Employment records and contracts
Every employee should have a written statement of core terms within five days of starting, and a full written contract within one month. This is a legal obligation under the Employment (Miscellaneous Provisions) Act 2018. Auditors reviewing employment records will expect to see these in place.
Your working time records need to show hours worked, rest breaks taken and annual leave accrued and used. Under the Organisation of Working Time Act, employers must keep these records for three years. If you cannot produce them, you have no defence against a claim that statutory entitlements were not met.
Check that your leave records reflect the statutory minimum of 4 working weeks' annual leave per year for a full-time employee. Part-time and variable-hours workers have a proportional entitlement calculated using hours worked.
Pension auto-enrolment and what to prepare for now
My Future Fund, Ireland's pension auto-enrolment scheme, is being introduced from 2026. If it has not already enrolled eligible employees in your business, it will soon. An audit carried out in 2026 or 2027 may include checks on whether you have correctly identified eligible workers, whether contributions are being deducted and remitted on time, and whether employees who opted out did so through the correct process.
Start documenting your auto-enrolment decisions now — which employees are eligible, which have opted out, and when — so that the paper trail exists if you need it.
Practical steps before the audit starts
Rather than waiting for an auditor to surface a problem, treat the period before any review as a live reconciliation exercise. A practical checklist:
Payroll submissions: Confirm every pay period has a corresponding ROS submission dated on or before payday. Look for any that were filed late or corrected.
Tax credit certificates: Confirm you hold a valid certificate for each employee. If any are on emergency tax, find out why and resolve it.
Worker classification: Review anyone engaged as a contractor. If they pass the tests for employment (regular hours, integrated into your operation, no financial risk), they should be on payroll. Misclassification is one of Revenue's primary audit triggers.
Record retention: Payroll records must be kept for six years. Employment records under the Organisation of Working Time Act must be kept for three years. Confirm your storage — whether paper or digital — meets these requirements.
Payslips: Every employee must receive a payslip for every pay period. Check that yours show gross pay, all deductions itemised, and net pay. A payslip that does not break out PAYE, USC and PRSI separately is non-compliant.
Running through this list before an audit is called is far less disruptive than doing it under pressure — and it gives you the evidence base to respond confidently if questions arise.
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