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.
This information was printed 2 December 2023 from https://www.servicesaustralia.gov.au/child-support-assessment. It may not include all of the relevant information on this topic. Please consider any relevant site notices at https://www.servicesaustralia.gov.au/site-notices when using this material.