Child support assessment

How we assess the amount of child support you need to pay or receive.

The formula we use to work it out is in Australian law.

If you disagree with a decision, find out when you can object to a Child Support decision.

We’re reviewing assessments based on provisional income between 2011 and 2018. Read more about what to do if you got a letter about your closed child support case.

Page last updated: 28 March 2024.
QC 21911