Most of the country works on the same arithmetic: 8.67 weeks of paid leave after 10 years with one employer — two months, accrued at about 0.87 weeks a year, and roughly 4.33 more weeks for every 5 years after that.
The outliers are worth knowing. South Australia and the Northern Territory accrue 13 weeks per 10 years — half as much again as everyone else. Victoria and the ACT unlock the leave at 7 years instead of 10, so a Victorian with 7 years of service can take their 6 weeks while a Queenslander with the same service can only get a payout in limited circumstances.
The second thing that differs is the pro-rata payout— what happens if your job ends before the full milestone. NSW and the ACT start it at 5 years; everywhere else it's 7. But the conditions matter: in Victoria, SA and WA nearly any termination qualifies, while in NSW, QLD, TAS and the NT a plain resignation usually pays nothing unless it's driven by illness, incapacity or pressing necessity.
Leave is paid at your ordinary ratefor ordinary hours — overtime and most allowances don't count, though shift workers and variable-hours employees often get an averaged rate. Awards, agreements and portable industry schemes (construction, cleaning, community services) can replace these rules entirely.