G'day @BhagyaA 👋
You might be unaware, but there are three different models for Purchased Leave (at 16m 40s) 🤓
Perhaps you use the second model? Where the employee/employer agree to sacrifice pre-tax salary and then pay it back when an absence is taken? If that's the case, then if they terminate without exhausting the balance, you refund it back to the employee as refund of salary sacrifice 😉
As with most lump sums, it's marginally taxed as per Schedule 5.
Deanne