How to manage your assessment

How to manage your child support assessment, including what information you need to give us and when to tell us about changes.

A child support assessment works out how much child support should be paid based on both parents' circumstances, including their income and care arrangements for the child.

We use a child support assessment to work out how much child support a parent should pay. You must give us accurate information and tell us if your circumstances change.

Page last updated: 8 October 2026.
QC 43016