Annual leave calculator (accrual, balance and payout).

Four weeks a year is 4/52 of every ordinary hour you work, which is 0.0769 hours of leave per hour. On a 38-hour week that is 2.923 hours a week, 152 hours a year. Eligible shiftworkers get five weeks, which is 5/52, or 3.654 hours a week on the same hours. Part-time employees accrue the same fraction of their own smaller hours - not a smaller fraction.

No. Leave accrues on your ordinary hours only, so overtime, however much of it you work, adds nothing to your balance. It does accrue while you are on paid leave - including annual leave itself and paid personal leave - and generally does not accrue during unpaid leave.

No. Casual employees do not accrue paid annual leave, and that is precisely what the 25% casual loading on the hourly rate is compensating for. If your work has become regular and predictable you may be eligible to convert to permanent employment, which starts the accrual.

No, and assuming it is will overstate your balance by nearly a fifth. Leave loading applies where an award or enterprise agreement provides for it. Plenty of salaried and award-free roles have none. Check the instrument that covers you rather than the internet.

Unused annual leave paid out on resignation, or cashed out while you are still employed, is added to your income and taxed at marginal rates - so a large balance can push part of the payment into a higher bracket. Paid out on a genuine redundancy it is withheld at a flat 30% plus the 2% Medicare levy instead, which is usually better. Either way it is squared up in your tax return.

Often, yes. Most modern awards allow an employer to direct an employee to take annual leave once the balance is excessive - commonly more than 8 weeks, or 10 for shiftworkers - with written notice and a reasonable period. There are also rules about shutdowns. The specifics live in your award or agreement.