Annual Leave Entitlement Ireland: Calculate Correctly

Table of Contents

Who should read this?

Small Irish employers, business owners, and payroll/HR managers dealing with staff scheduling, leave tracking, and compliance.

They'll gain clear steps to calculate entitlements correctly, avoid costly WRC complaints, maintain proper records, and ensure fair pay for annual leave and public holidays.

Key Takeaways

Statutory minimum: 4 weeks paid annual leave for all employees from day one, calculated by best of 3 methods.
Leave year defaults to 1 April-31 March, not calendar year.
10 public holidays; part-time qualify after 40 hours in prior 5 weeks; 4 benefit options.
Pay at normal weekly rate; accrues during sick/maternity; no roll-up allowed.
Common errors: wrong year, ignoring thresholds, poor records lead to WRC fines up to €2,500.

Annual leave and public holidays are two of the most common areas where small Irish employers get caught out. The rules sit across the Companies Act 2014, the Organisation of Working Time Act 1997 and a handful of Workplace Relations Commission (WRC) guidance notes, and the wrong calculation method can leave you underpaying staff for years without knowing. This guide sets out how annual leave entitlement Ireland is calculated, how public holidays interact with leave, and the pay rules that apply to both.

What does the Organisation of Working Time Act require?

The Organisation of Working Time Act 1997 gives every employee a statutory minimum of four working weeks of paid annual leave, regardless of contract type or hours worked. Full-time, part-time, fixed-term, and casual staff are all covered from day one of employment. The Act uses two concepts that small employers regularly mix up. The leave year is the 12-month period used to calculate entitlement, which by default runs from 1 April to 31 March. The accrual period is the time during which an employee earns leave. Contracts can only improve on the statutory minimum, so if your handbook promises 25 days, that figure replaces the 20-day floor.

Please note: The leave year is not the calendar year. If your handbook is silent, the statutory default of 1 April to 31 March applies, not 1 January to 31 December.

How do you calculate annual leave entitlement?

Three methods sit inside the Act, and an employee is entitled to whichever produces the most leave.

Four working weeks for any employee who works at least 1,365 hours in the leave year (not applicable in the year they change employment).
One-third of a working week for each calendar month in which the employee works at least 117 hours.
8% of the hours worked in the leave year, capped at four working weeks.

The 8% method is usually the cleanest choice for part-time and variable-hours staff. A "working week" is not a fixed seven-day block. It is the number of days the employee usually works in a week, which matters when converting an 8% entitlement back into days off. Employees who work eight or more months in a leave year are also entitled to an unbroken two-week block under Section 19(3) of the Act, unless an alternative arrangement is agreed.

How do public holidays work for Irish employers?

Ireland has ten public holidays. For 2026 they fall on 1 January, 2 February (St Brigid's Day), 17 March, 6 April, 4 May, 1 June, 3 August, 26 October, 25 December, and 26 December. Good Friday is not a public holiday.

For each public holiday, the employer chooses one of four benefits for the employee: A paid day off on the day itself A paid day off within the following month An additional day of annual leave An additional day's pay Full-time employees qualify from their first day of employment. Part-time and casual staff qualify once they have worked 40 hours in the five weeks before the public holiday. Missing this threshold is the most common public-holiday payroll error we see in small companies.

Author's tip: Document which of the four public-holiday options applies on your payslips. If you are inspected, the WRC will want to see how the benefit was delivered, not just that something was paid.

What pay applies during leave and public holidays?

Pay during annual leave is the employee's normal weekly rate, which includes regular bonuses, shift premiums, and commission averaged over the previous 13 weeks where pay is variable. It does not include one-off performance bonuses. For public holidays, part-time staff are entitled to one-fifth of their normal weekly pay if the day is one they do not usually work. If an employee leaves mid-leave-year without taking their full entitlement, you must pay out the balance in their final payslip. It is important to note that holiday pay cannot be rolled into an hourly rate. "Rolled-up" holiday pay is not compliant in Ireland.

Sort your leave records before the WRC asks to see them
Open Forest helps small Irish employers set up compliant leave trackers, payslips, and record-keeping systems tied to the WRC's expectations.
Talk to our employment compliance team

What changes for part-time, casual, and variable-hours staff?

Variable-hours staff are the area where most small employers trip up. We advise that you use the 8% method by default and then recalculate monthly, not annually. Zero-hour and "if-and-when" workers accrue leave on actual hours worked, so a month with no shifts produces no accrual, but a busy month can push them above the 117-hour threshold and into the second calculation method. Seasonal workers retain any accrued but untaken leave when they finish a employment contract, and it must be paid out in the final payslip. Rolling averages help when rostering is unpredictable. Track the last 13 weeks and apply that average for any leave paid in the current month.

How does leave interact with sickness, maternity, and parental leave?

Annual leave continues to accrue during certified sick leave, maternity leave, paternity leave, adoptive leave, and parental leave. That surprises many first-time employers. If an employee falls ill during annual leave and produces a medical certificate, the sick days convert back into certified sick leave and the annual leave is restored. Leave can be carried forward by agreement, but the statutory position is that all four weeks must be taken within six months of the end of the leave year. You should be aware that buying out statutory leave is only permitted on the termination of employment, never during ongoing employment. For accurate record keeping of leave, pay, and hours worked, see our guide on document retention rules for Irish companies and the data retention policy requirements under GDPR.

What are the most common employer mistakes?

In our experience, a handful of errors account for most WRC complaints in this area. Running leave on the calendar year while your contracts say otherwise creates a mismatch that benefits no one. Applying the four-week rule to someone who never hits 1,365 hours cuts their entitlement illegally. Ignoring the 40-hour-in-5-weeks threshold for part-time public-holiday benefits is the single most common payslip error. Failing to keep proper leave and working-time records, as required by Section 25 of the Organisation of Working Time Act, can result in fixed‑payment notices, and on prosecution can lead to fines of up to €2,500, even where no underpayment of leave is proven.

What to do next

Annual leave entitlement Ireland looks simple on paper and gets messy in practice the moment you employ variable-hours staff. Pick the right calculation method per employee, track accrual monthly, and keep clean records that the WRC could review tomorrow without you panicking. If your current setup feels fragile, Open Forest can audit your leave and payroll records and help you close any gaps before they become claims. Consider linking your tax-free benefit planning to the €1,500 small benefit exemption while you are at it.

‍

About the Author:

Connect:

Laura Ryan is a practising Barrister at the Bar of Ireland. She graduated from the Honourable Society of King’s Inns in 2024, having previously qualified and practised as a Chartered Accountant in a big four accounting firm.

Legal

April 2026

Annual Leave and Public Holidays in Ireland

Key Takeaways

ROPA: What Irish Businesses Must Document Under GDPR

Subject Access Requests: How Irish Businesses Must Respond

GDPR Vendor Compliance for Irish Startups

Right to Erasure for Irish Businesses

Cap Table Management for Irish Founders

Subscription Agreements for Irish Founders

Irish Website Privacy Policy Requirements

GDPR Data Retention Policies for Irish Companies

Data Breach Notification Under GDPR

GDPR Consent Requirements: How Irish Companies Must Get It Right

Frequently Asked Questions

What is the statutory minimum annual leave in Ireland?

How is annual leave entitlement calculated?

What qualifies part-time staff for public holiday benefits?

Does annual leave accrue during sick or maternity leave?

Can holiday pay be rolled into hourly rates?

Explore our other topics

Register of Beneficial Owners: Complete Irish Guide

Subscription Agreement: Essentials for Irish Founders

Public Limited Companies (PLCs) in Ireland