Your accrued annual leave is preserved in hours when you move from full-time to part-time in Australia. The balance is not cut, not recalculated, and not paid out unless you agree to it. What changes is future accrual, which drops to match your new ordinary hours — and the number of working days each banked hour now buys you.
The confusion is almost always about units. People think in weeks; the Fair Work Act thinks in hours. Once you switch to hours, the whole thing resolves in one line of arithmetic.
Key Takeaways
- Annual leave accrues on ordinary hours worked and accumulates from year to year. Reducing your hours does not touch hours already banked (Fair Work Ombudsman).
- A clause, policy or spreadsheet that shrinks an accrued balance because hours dropped is forfeiture, and it is void under the Fair Work Act.
- The dollar value stays the same. What changes is how many part-time days that balance covers — usually more, not fewer.
- Future accrual moves to the new pro-rata rate from the date the hours change, not retrospectively.
Does Your Leave Balance Get Cut When You Go Part-Time?
No. Annual leave accrued under section 87 of the Fair Work Act 2009 is an accrued entitlement. It accumulates from year to year, and there is no lawful mechanism for an employer to reduce it because your ordinary hours changed.
The error that produces the “my leave got cut” complaint is a conversion done in weeks. Someone reasons: she had four weeks; she’s now part-time; four weeks of part-time is fewer hours; so her balance should shrink. That reasoning takes a banked entitlement and re-prices it downwards. It’s the same thing as forfeiting leave, and it doesn’t survive contact with the Act.
The correct model is a bank account. The hours in it are yours. Changing your hours changes the rate of deposits, not the existing balance.
Worked Example: 38 Hours a Week Down to 20
Sam has worked full-time for three years: 38 ordinary hours a week, 7.6-hour days, base rate $32.00/hour. She has 152 hours of annual leave accrued and untaken. From 1 August she moves to part-time: 20 hours a week across five 4-hour days.
Here is the same balance, before and after.
| Full-time (before) | Part-time (after) | |
|---|---|---|
| Accrued balance | 152 hours | 152 hours |
| Length of a working day | 7.6 hours | 4 hours |
| Balance expressed in days | 20 days | 38 days |
| Balance expressed in weeks | 4 weeks | 7.6 weeks |
| Base rate | $32.00/hour | $32.00/hour |
| Dollar value of the balance | $4,864 | $4,864 |
| Annual accrual going forward | 152 hours/year | 80 hours/year |
Three things to read off that table.
The balance did not move. 152 hours before, 152 hours after, $4,864 either way.
A “day” got shorter, so the balance goes further. Sam can now be away from work for 38 rostered days on the same bank. Nothing was created — a 4-hour absence simply costs 4 hours instead of 7.6.
Future accrual halved, correctly. From 1 August she accrues on 20 ordinary hours a week: 20 × 4 = 80 hours a year. That’s the pro-rata rule working as intended, and it applies from the date of the change, not backwards over her three full-time years.
The version that’s unlawful
If Sam’s employer had “converted” her four weeks into four part-time weeks — 20 × 4 = 80 hours — she would have lost 72 hours, worth $2,304. That is not a recalculation. It’s a deduction from an accrued entitlement, and it’s void.
If it has already happened, the fix is to restore the hours, not to argue about intent. Under Australia’s wage theft provisions, deliberate underpayment of entitlements has been a criminal offence since 1 January 2025.
What Actually Changes on the Day You Switch
Four things move, and it helps to name them separately:
- Accrual rate. Recalculated to your new ordinary hours from the effective date.
- The value of one leave day. A day of absence now consumes fewer hours, because your rostered day is shorter.
- Personal/carer’s leave. Same mechanics. Ten days for a full-time employee is 76 hours; the accrued hours carry across and future accrual becomes pro rata.
- Public holiday payment. You’re paid for public holidays that fall on days you would ordinarily work. Change which days you work and you change which public holidays you’re paid for — a real financial effect that has nothing to do with your leave balance.
What does not change: the balance itself, its dollar value at an unchanged hourly rate, or your right to be paid out every accrued hour when employment ends.
Should You Take or Cash Out Leave Before Going Part-Time?
Usually there’s no need, and often no benefit. Since the balance is preserved in hours at the same hourly rate, holding it costs you nothing in value.
Two exceptions are worth thinking about:
- If your hourly rate is also dropping as part of the change — for example, a move to a different role rather than just fewer hours — then leave taken before the change is paid at the higher rate. Leave taken after is paid at the base rate applying when you take it.
- If your award pays annual leave loading and the loading clause is tied to your actual base rate, the same timing logic applies to the 17.5%.
Cashing out is not a free option. It’s only available if your award or enterprise agreement permits it, needs a separate written agreement each time, and you must be left with at least four weeks of accrued leave afterwards. Our guide to cashing out annual leave in Australia sets out the conditions.
Frequently Asked Questions
Does long service leave work the same way?
No, and this is the genuine exception. Long service leave is state and territory legislation, not the Fair Work Act, and several schemes calculate the payment using an average of your ordinary hours over a defined period — often the last 12 months, or an average across five years and the whole period of service, whichever is greater. A move to part-time late in your service can therefore change what your long service leave pays. Check your state’s scheme in our state-by-state long service leave guide.
What if I go from part-time back to full-time?
The same rule in reverse. Accrued hours carry across untouched, and future accrual rises to match the new ordinary hours. Your balance will now cover fewer working days, because each day is longer — again, no value has been lost.
Do I need a new employment contract?
You need a written record of the change: the new ordinary hours, the days and times you’ll work, and the effective date. For award-covered part-time employees, most awards require the agreed pattern of hours to be recorded in writing before work starts under it.
Does my accrued balance get paid out when I switch?
Not automatically, and not at the employer’s election. A payout on a change of hours would be a cash-out, which requires award permission and your written agreement. If the change is a genuine termination and re-engagement rather than a variation, different rules apply and everything accrued must be paid out.
What This Means for You
Do one check the week the change takes effect: open the employee’s record and confirm the accrued balance is still expressed in hours, and that it hasn’t moved. Then confirm the accrual rate has changed and the effective date is right. Those two checks catch essentially every version of this error.
Systems that store leave in days are the root cause. Leave Balance holds every balance in hours and re-bases the accrual rate when an employee’s ordinary hours change, so the banked figure survives the switch untouched. For the wider comparison, see our guide to full-time vs part-time leave entitlements in Australia.
This article is general information, not legal advice. Check the modern award or enterprise agreement that applies to your workplace, or get advice from an employment lawyer.
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