The Guides to Social Policy Law is a collection of publications designed to assist decision makers administering social policy law. The information contained in this publication is intended only as a guide to relevant legislation/policy. The information is accurate as at the date listed at the bottom of the page, but may be subject to change. To discuss individual circumstances please contact Services Australia.

2.4.4 Child support income


The child support income of both parents is used to calculate their child support assessment.

A parent's share of the parents' combined child support income indicates the share of the costs of the child they are responsible to meet. This is an 'income shares' approach and treats both parents' incomes in the same way.

This section explains how a parent's child support income is calculated and includes information about the rules that apply when income information is not available and when a taxable income is amended.

Child support income components

A parent's child support income is their:

WA ex-nuptial cases

The information in this topic applies to WA ex-nuptial children.

Policy reference: CS Guide 1.2.3 History of application of the CSA Act to WA ex-nuptial cases

Last reviewed: