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.
This formula is for parents with only 1 child support assessment.
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 care estimator is a tool that calculates your care percentage.
Any child support you receive can affect how much Family Tax Benefit (FTB) Part A you get.
Page last updated: 16 October 2018