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.
In this section
The assessment formula
The child support assessment formula looks at your circumstances to work out how much child support should be paid.
How your percentage of care affects your child support payments
Our child support assessment considers each parent or non-parent carer’s care of the child. This is their percentage of care.
How your income affects your payment
We consider each parent’s income equally when we make a child support assessment. We don’t use income from non-parent carers.
This formula is for parents with only 1 child support assessment.
Fixed and minimum assessments
We can base some child support assessments on a fixed rate or a minimum rate.
Parents with 2 or more assessments
We work out how much child support you pay or receive if you have 2 or more families from past relationships
Assessments for parents with second families
If you have children from a new family, we reflect this in your assessment.
Care percentage estimator
The care estimator is a tool that calculates your care percentage.