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.
Child support assessment
How we assess the amount of child support you need to pay or receive.
Page last updated: 21 December 2022.
This information was printed 21 March 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.