New Zealand Holidays Act Year-End Checklist: OWP, AWE, and Anniversary Roll-Overs

Most leave-management year-end checklists assume an org-wide leave year that ends the same day for everyone. The Holidays Act 2003 in New Zealand does not work that way. Each employee’s annual leave entitlement rolls over on their employment anniversary — meaning your “year-end” is actually 200 different mini year-ends spread across the calendar.

This is the single biggest reason Holidays Act compliance is hard. Here’s a practical checklist for getting it right.

Why anniversary-based entitlement matters

Section 16 of the Holidays Act entitles employees to four weeks of paid annual holidays “after the end of each completed 12 months of continuous employment.” That phrase — each completed 12 months — is what makes the system anniversary-based.

Concretely:

• An employee who started 14 March 2024 becomes entitled to their first 4-week annual leave entitlement on 14 March 2025.
• That entitlement does not reset on 1 January or 1 April.
• The next 4 weeks accrue on 14 March 2026, and so on.

For a 50-person company, you have 50 different roll-over dates and 50 different recalculation moments — not one.

OWP and AWE: the calculation that has to be right

When an employee takes annual leave, you pay them the higher of two values:

• Ordinary Weekly Pay (OWP) — what the employee would normally earn for a working week, calculated either from the employment agreement or from a four-week average of gross earnings.
• Average Weekly Earnings (AWE) — gross earnings over the previous 52 weeks divided by 52.

The “higher of” rule means a payroll system that computes only one of the two will systematically underpay employees whose hours or earnings vary. Holidays Act non-compliance is overwhelmingly an OWP/AWE problem — MBIE audits have recovered hundreds of millions in back-pay from major employers over the last decade because their systems used a single formula instead of the higher-of pair.

A correct OWP/AWE calculation depends on having the right 52-week and 4-week earnings windows on the leave-taken date — which is why anniversary roll-overs and leave-taken events both trigger recalculations.

The year-end checklist

Even though the legal entitlements roll over by anniversary, most NZ companies still run an annual operational checkpoint to keep things in order. Here’s what to cover.

1. Audit anniversary dates and entitlement balances

For every employee, confirm:

• Continuous employment start date (this is the date that drives anniversaries — not the most recent rehire if there was a break).
• The most recent anniversary roll-over and the entitlement applied at that point.
• Whether the employee has taken leave since the most recent anniversary, and whether the balance reflects that correctly.

2. Recalculate OWP and AWE for all leave taken in the last year

This is the audit step that catches most underpayment problems. For every block of annual leave taken in the last 12 months:

• Recompute OWP at the leave-taken date.
• Recompute AWE for the 52 weeks ending the day before leave was taken.
• Confirm the higher of the two was actually paid.

If your payroll system has been using only one of the two formulas, you will find back-pay obligations here. Address them.

3. Check sick leave entitlement progression

Sick leave entitlements changed on 24 July 2021 — moving from 5 to 10 days per year for new entitlements. If you have employees who passed their post-2021 entitlement anniversary, confirm they received the 10-day entitlement, not the legacy 5.

4. Reconcile alternative holidays (lieu days)

Employees who work on a public holiday that would otherwise be a working day for them are entitled to an alternative holiday (a “lieu day”) at full daily pay. These do not expire and must be honoured.

Confirm:

• Every public holiday worked in the last 12 months has the lieu-day entitlement recorded.
• Any lieu days taken were paid at relevant daily pay (not OWP/AWE).
• Any unused lieu days remain on the balance.

5. Bereavement and family violence leave compliance

Both have statutory minimums and specific eligibility rules. Confirm that any usage in the last 12 months was recorded, paid at the correct rate, and not deducted from annual leave.

6. Document any closedown periods

If your business uses an annual closedown period (typically over Christmas/New Year), the rules around timing of leave during closedown are specific and require a 14-day written notice. Confirm that any closedown processes were followed and documented.

Where Leave Balance helps

The year-end leave declaration in Leave Balance respects anniversary-based entitlement out of the box. When you run a year-end dry-run for a NZ team:

• Each employee’s roll-over date is computed independently from their continuous service start.
• OWP and AWE are recomputed at the relevant boundaries and surfaced in the preview.
• Lieu days and unused alternative holidays appear as separate buckets in the dry-run output.
• Compliance with sick leave entitlement progression is flagged where employees have passed the 24 July 2021 boundary.

The dry-run is the part that matters: you can see the full picture before committing, share the preview with payroll, and apply per-employee overrides where edge cases require them.

Common Holidays Act mistakes

Treating annual leave like a calendar-year accrual. It’s anniversary-based. Calendar-year accrual will systematically misstate balances.

Using OWP only, not the higher of OWP and AWE. This is the single most common cause of back-pay liability. Always compute both.

Skipping the 52-week earnings window for AWE. AWE is a 52-week look-back, not a “since you started this year” calculation. Variable-hours employees in particular need this right.

Ignoring lieu days. They’re a separate entitlement that doesn’t expire. They must be tracked separately from annual leave.

Forgetting sick leave entitlement timing. The 10-day entitlement applies to new entitlements arising after 24 July 2021 — not retrospectively to balances accrued before.

The bigger point

Holidays Act compliance isn’t a year-end task — it’s a continuous obligation. But year-end is the right time to audit the continuous obligation, catch underpayments before they grow, and recalibrate any process that drifted during the year.

If your audit produces a back-pay finding, address it promptly. MBIE’s enforcement record shows that voluntary remediation is treated very differently from issues found during an audit.