I thought this exemple in the budget papers was a good one :
"Natasha is not currently working and receives an income support payment, but is studying in order to better her chances of future employment. Her two year old daughter attends a local long day care centre which currently costs $78.50 per day. By 2017‑18 the cost is $90 per day.Natasha’s annual income of less than $65,710 in 2017‑18 means she will be eligible for assistance under the Child Care Subsidy, and further ‘top‑up’ under the Additional Child Care Subsidy.
As this assistance is activity tested, Natasha would be able to access 50 hours of child care per week as she is studying for 49 or more hours per fortnight (compared to the maximum of 36 hours per week allowed for approved study activities under the current system). Natasha would be subsidised for up to 95 per cent of child care costs, leaving her only five per cent ($22.50 per week) out of pocket."