If you employ staff in Ireland, annual leave is not a perk you negotiate — it is a statutory floor set by the Oireachtas in 1997. Every employee, from a full-time permanent hire to a casual worker on a single shift, accrues paid annual leave from the day they start. Get the calculation wrong and you can end up in front of the Workplace Relations Commission (WRC) with three years of underpayments to make good.

This guide walks Irish employers through the four-week statutory minimum under the Organisation of Working Time Act 1997, who is eligible, how holiday pay must be calculated, what the WRC expects you to record, and the pitfalls that show up most often in adjudication decisions.

Key takeaways

The statutory minimum in Ireland is four working weeks of paid annual leave per leave year.
Entitlement accrues from day one — there is no qualifying period.
The standard leave year runs 1 April to 31 March, unless your contract sets a different one.
Public holidays are a separate statutory entitlement and do not count toward the four-week minimum.
Holiday pay must reflect the employee’s normal weekly rate, including regular allowances and a representative average of variable pay.
Records of leave taken must be kept for at least three years under WRC inspection rules.

The statutory entitlement: four working weeks

The Organisation of Working Time Act 1997 (sections 19–23, as amended) sets the floor for paid annual leave in Ireland. An employee is entitled to whichever of the following gives the largest result in any leave year:

Four working weeks in a leave year in which the employee works at least 1,365 hours (excluding leave).
One-third of a working week for each calendar month in which the employee worked at least 117 hours.
8% of the hours worked in the leave year, capped at four working weeks.

A “working week” is the days the employee normally works — not seven calendar days. For an employee who works five days a week, four working weeks equals 20 days. For an employee who works three days a week, four working weeks equals 12 days. The benefit is expressed in time, not in a fixed day count.

For full-time staff with regular hours, method 1 almost always applies and the answer is simply four weeks. For part-time, casual, or irregular-hours employees, method 3 — the 8% accrual — usually produces the entitlement.

The 8% accrual method

The 8% rule is the workhorse formula for any employee whose hours vary. For every hour worked, the employee accrues 0.08 of an hour of paid annual leave. Some worked examples:

A part-time employee who works 20 hours a week for the full leave year accrues 20 × 52 × 8% = 83.2 hours of paid leave (roughly four weeks at 20 hours each).
A casual worker who works 600 hours across the leave year accrues 600 × 8% = 48 hours of paid leave.
A seasonal worker on a six-month contract working 1,000 hours accrues 80 hours.

The 8% accrual is capped at four working weeks per leave year. An employee cannot accrue more than the statutory minimum from this formula alone — although their contract can grant more.

Eligibility: every employee, from day one

There is no minimum service requirement for annual leave in Ireland. The entitlement applies to:

Full-time and part-time employees
Fixed-term and specified-purpose contract employees
Casual and seasonal workers
Apprentices and trainees on contracts of employment
Agency workers (the agency or hirer, depending on who pays the wage, is responsible)

Genuinely self-employed contractors fall outside the Act, but the test for self-employment in Ireland is strict. The Code of Practice on Determining Employment Status, updated by the Department of Social Protection, looks at substance over labels. Misclassifying an employee as a contractor to avoid annual leave is one of the fastest routes to a WRC complaint.

The leave year: when does the clock reset?

The default leave year under the Act runs from 1 April to 31 March. Employers can set a different leave year by contract — many use 1 January to 31 December to align with payroll, or the employee’s start anniversary for rolling balances.

Whichever you choose, document it in the contract of employment. If the contract is silent, the statutory 1 April to 31 March year applies and any disputes will be measured against that calendar.

Public holidays are separate — do not double-count

Ireland has 10 public holidays each year, including the addition of St Brigid’s Day (first Monday in February) from 2023. Public holiday entitlement is governed by section 21 of the Act and is completely separate from annual leave.

For each public holiday, an employee who has worked at least 40 hours in the previous five weeks is entitled to one of the following, at the employer’s choice:

A paid day off on the public holiday
A paid day off within a month
An additional day’s pay
An additional day of annual leave

You cannot satisfy the public holiday obligation by reducing the four-week annual leave minimum. They are stacked, not substituted. For a full breakdown of public holiday rules, see our guide to leave management in Ireland.

Holiday pay: the normal weekly rate

Section 20(2) of the Act requires that annual leave be paid at the employee’s normal weekly rate. For salaried staff on fixed pay, this is straightforward: pay the usual weekly amount.

For employees whose pay varies — shift workers, commission earners, employees with regular overtime — the calculation uses a 13-week reference period immediately before the leave is taken. Weeks of no pay are excluded. The weekly rate for holiday pay is the average of the qualifying weeks.

What must be included in normal weekly rate:

Basic pay
Regular shift premia and unsocial-hours allowances
Regular rostered overtime
Regular commission and productivity bonuses
Board and lodgings paid as part of remuneration

Discretionary annual bonuses and one-off payments do not have to be included. The principle, established through Workplace Relations Commission decisions and reinforced by EU case law on the Working Time Directive, is that an employee should not be financially worse off for taking leave.

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Employer obligations under the Act

The Organisation of Working Time Act 1997 places clear, enforceable duties on every Irish employer:

Provide at least four working weeks of paid annual leave per leave year.
Pay annual leave at the normal weekly rate, including regular variable pay over the 13-week reference period.
Allow at least one unbroken two-week block where the employee has worked at least eight months in the leave year (section 20(1)(c)).
Pay any accrued, untaken leave on termination — there is no equivalent of “use it or lose it” for accrued statutory leave when employment ends.
Keep accurate records of hours worked and leave taken for at least three years, available on request to a WRC inspector under the Workplace Relations Act 2015.
Determine the timing of leave after consultation with the employee, giving at least one month’s notice (section 20(1)(a)).

The employer chooses when leave is taken, but the choice is constrained: you must consult the employee, take account of family responsibilities and rest needs, and you cannot deny the four-week entitlement itself within the leave year.

Carry-over and long-term sick leave

Statutory annual leave is meant to be taken in the leave year it accrues. The Act allows carry-over by agreement — six months is a common contractual limit — but the entitlement does not lapse silently.

There is one important exception. Following the High Court’s decision in Land Tirol and the subsequent statutory amendment, employees who cannot take annual leave because of certified illness can carry it over for up to 15 months after the end of the leave year in which it accrued. If you have an employee on long-term sick leave, do not wipe their balance at the end of the leave year — the Act protects it.

Termination: pay out the balance

When employment ends — whether through resignation, dismissal, redundancy, or expiry of a fixed-term contract — the employer must pay compensation in lieu of any accrued, untaken statutory annual leave. The calculation uses the same normal-weekly-rate principle as paid leave.

This is one of the most common bases for WRC complaints. Employees who feel short-changed at the end of employment have six months (extendable to twelve in limited circumstances) to lodge a complaint. The remedy can be the underpaid amount plus compensation for breach of statutory rights.

Common pitfalls Irish employers fall into

The decisions of the Workplace Relations Commission and the Labour Court repeat the same handful of errors. Watch for these:

1. Counting leave in calendar weeks instead of working weeks

Four “weeks” means four working weeks. For a four-day-a-week employee, that is 16 days, not 20. Crediting them with 20 days is generous; crediting them with 28 days is wrong.

2. Bundling public holidays into the four-week entitlement

Public holidays are a separate entitlement. Telling an employee that ten public holidays are part of their “annual leave” of 30 days breaches section 21.

3. Excluding regular variable pay from holiday pay

If a shift worker earns €600 a week with rostered overtime and unsocial-hours premia, paying €450 of basic pay during their holiday is an underpayment. Use the 13-week reference period.

4. Refusing carry-over for sick employees

An employee on certified long-term sick leave keeps their accrued statutory leave for up to 15 months after the leave year ends. Resetting their balance to zero on 31 March is a breach.

5. No two-week block for eligible employees

If an employee has worked at least eight months in the leave year, they have a statutory right to an unbroken two-week block. Splitting it into singles “for operational reasons” without consultation will not survive a complaint.

6. Inadequate record-keeping

The WRC can inspect leave records on demand. Spreadsheets that get rebuilt every quarter, or paper diaries that go missing, put the burden of proof squarely on the employer. For Irish-specific record-keeping practice, see our employer guide to leave management in Ireland.

FAQ: annual leave in Ireland

How much annual leave am I entitled to in Ireland?

Every employee in Ireland is entitled to a minimum of four working weeks of paid annual leave per leave year, with no minimum service requirement. Many employers offer more by contract — 25 days plus public holidays is a common private-sector norm.

Do public holidays count as annual leave in Ireland?

No. Ireland’s 10 public holidays are a separate statutory entitlement on top of the four-week annual leave minimum.

Can my employer refuse my annual leave request?

An employer can determine the timing of leave after consulting the employee at least one month in advance, taking account of family circumstances and the need for rest. They cannot deny the four-week statutory entitlement itself within the leave year.

How is holiday pay calculated for variable-hours workers?

Holiday pay for employees whose pay varies is the average pay over the 13 weeks immediately before the leave is taken, excluding any weeks of no pay. Regular bonuses, rostered overtime, and shift premia must be included.

What happens to unused annual leave when an employee leaves?

The employer must pay compensation in lieu of any accrued, untaken statutory annual leave on termination. This applies regardless of why the employment ended.

Does annual leave accrue during sick leave?

Yes. Annual leave continues to accrue during certified sick leave, and any leave the employee could not take because of illness can be carried over for up to 15 months after the end of the leave year.

Are part-time workers entitled to the same four weeks?

Yes — but expressed in their working pattern. A three-day-a-week employee gets four working weeks equal to 12 days. The 8% accrual method usually produces the same result for irregular-hours staff.

How Leave Balance helps Irish employers stay compliant

Tracking the four-week minimum, applying the 8% accrual to casual hours, calculating holiday pay over the 13-week reference period, honouring carry-over for long-term sick leave, and producing three years of records on demand for the WRC is exactly the kind of administrative load that grows faster than headcount.

Leave Balance handles it automatically. Configure your leave year (1 April or 1 January), set holiday pay to use the 13-week reference period, let the platform accrue 8% on every recorded hour for casual workers, and trust the audit log to back you up if a WRC inspector knocks. Slack and Microsoft Teams integrations mean leave requests and approvals happen where your team already works. At a flat €10 a month — not per employee — the price stays the same whether you have five staff in Cork or fifty across the country.

For a wider view of Irish leave administration, including sick leave, parental leave, and public holidays, read our leave management in Ireland guide. If you also employ staff in the UK or Australia, see our companion guides to UK annual leave entitlements and annual leave in Australia.