The child support assessment formula
The child support assessment formula looks at your circumstances to work out how much child support should be paid.
Reciprocating jurisdictions and residency for child support
We have arrangements for child support with a number of countries. We call these reciprocating jurisdictions.
Residence rules for a child support assessment
We can make a child support assessment if at least one parent lives in Australia.
Child support when your child turns 18
Normally child support stops when your child turns 18. If your child's in secondary study, you can apply to extend it to the end of the school year.
Guide for newly separated parents
A list of tasks you may want to do when going through separation.
Compare your child support collection options
Compare the difference between Child Support Collect and Private Collect and choose how you want to receive child support.
Separation details form (MOD S)
Use this form to let us know you’ve separated from your partner.
Child support care percentage estimator
The care estimator is a tool that calculates your care percentage.
Paying child support by Child Support Collect
There are different ways you can make child support payments when you use Child Support Collect.
Parents with 2 or more child support assessments
We work out how much child support you pay or receive if you have 2 or more families from past relationships