How we work out your 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.
The child support assessment formula looks at your circumstances to work out how much child support should be paid.
We consider each parent or non-parent carer’s care of the child as part of our child support assessment. This is their percentage of care.
We consider each parent’s income equally when we make a child support assessment. We don’t use income from non parent carers.
We can base some child support assessments on a fixed rate or a minimum rate.
We work out how much child support you pay or receive if you have 2 or more families from past relationships
If you have children from a new family, we reflect this in your assessment.
The easiest way to apply is online. You can set up self service at the same time. Then you’ll be ready to manage your child support online.
Page last updated: 19 September 2019
This information was printed 6 March 2021 from https://www.servicesaustralia.gov.au/individuals/services/child-support/child-support-assessment/how-we-work-out-your-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/individuals/site-notices when using this material.