[dronacharya]

If you're on a 457 at NSW, you do have to pay 5k per child, per year for them to be able to attend a public school.

Here is the fee schedule: http://www.detinternational.nsw.edu.au/media-assets/trp/fees...

If you choose to then apply for a PR, you're eligible for a partial refund based on your PR grant date.