Gender pay gap reporting in Ireland
Reviewed by Mellow Editorial Team, HR & payroll content team
Gender pay gap reporting is a legal requirement for employers in Ireland above a certain headcount threshold, not a voluntary exercise. Here is what you need to know to comply, interpret your data honestly, and act on what you find.
Who must report, and when
Ireland's Gender Pay Gap Information Act 2021 requires employers to publish gender pay gap reports on an annual basis. The obligation is phased in by employer size.
Employers with 150 or more employees were first required to report in 2022. Employers with 50 or more employees came into scope in 2024. The Government has signalled that the threshold will eventually drop to 50 employees as a permanent baseline, bringing a significant portion of Irish workplaces into scope.
The reporting cycle works like this: you choose a snapshot date in June, calculate the relevant figures using payroll data from that date, and publish your report within six months — so by November of the same year at the latest. You are also required to publish a statement explaining the reasons for any gap and what measures, if any, you are taking to address it.
What you are required to calculate
The regulations require you to report several metrics, not just a single headline figure. These include:
- Mean and median gender pay gap — the difference in average hourly pay between men and women, expressed as a percentage
- Mean and median bonus gap — the difference in bonus payments received
- Mean and median hourly remuneration gap for part-time employees
- Mean and median hourly remuneration gap for temporary employees
- The proportion of men and women receiving bonuses and benefits in kind
- The proportion of men and women in each pay quartile — lower, lower-middle, upper-middle and upper
Pay quartile data is often the most revealing part of a report. A modest mean pay gap can mask a significant concentration of women in lower-paid roles and men in senior or highly paid positions.
The difference between a pay gap and unequal pay
These two concepts are frequently conflated, and the distinction matters.
Unequal pay means paying a man and a woman differently for doing the same or equivalent work. That is unlawful under the Employment Equality Acts.
A gender pay gap is a broader statistical measure. It compares average pay across your entire workforce, regardless of role or seniority. A company can have equal pay in the legal sense — every individual is paid fairly for their role — and still have a significant gender pay gap if, for example, most senior roles are held by men and most part-time or lower-paid roles are held by women.
Understanding this distinction is important when you write the explanatory statement that accompanies your report. Attempting to explain away a gap without engaging honestly with its causes tends to damage rather than protect your reputation.
Interpreting your numbers
A gap in favour of men (meaning men's average pay is higher) is reported as a positive percentage. A gap in favour of women is reported as a negative percentage. Neither automatically indicates wrongdoing, but both warrant an honest explanation.
Common legitimate drivers of a pay gap include occupational segregation (certain functions being predominantly male or female), a higher proportion of women in part-time roles, fewer women in senior leadership, and gaps in bonus eligibility across different business functions. These are structural issues, not excuses — they point to where remediation efforts should focus.
When writing your explanatory statement, be specific. Generic statements about "commitment to diversity" carry little weight. Refer to your actual quartile distribution, your bonus eligibility policy, and any concrete steps you are taking — for example, changes to flexible working access, structured pay review processes, or targeted progression support.
Practical steps to prepare
Start with your payroll data. You need clean, accurate records of hourly pay, bonuses, benefits in kind, and employment type for every employee on your snapshot date. Payroll errors or inconsistent job categorisation will distort your figures, so it is worth auditing your data before the June snapshot date rather than after.
Categorise employees correctly. Part-time and temporary employees must be reported on separately. Make sure your HR system records these distinctions accurately.
Assign pay quartiles correctly. Rank all employees by hourly pay from lowest to highest, then divide into four equal groups. The proportion of men and women in each group is what you report.
Publish in a prominent place. There is no central government register where reports are submitted; you are required to publish on your own website and to notify the Irish Human Rights and Equality Commission (IHREC) that you have done so. IHREC has the power to investigate non-compliance and, where employers repeatedly fail to report, can seek a court order compelling publication.
Running payroll accurately across different employment types — permanent, part-time, temporary — is the foundation that makes gender pay gap reporting tractable. If your payroll data is fragmented or inconsistent, that is the first thing to fix.
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