Use this form to provide us with an estimate of your income where it is different from the income used for your current child support assessment.
You must download our forms to fill them in. We have help available if you use assistive technology or if you need a translator or interpreter. Find out how to use our forms.
Download and complete the Estimate of income for use in Child Support Assessment form.
Use your Child Support online account through myGov to submit this form online.
This information was printed 31 March 2026 from https://www.servicesaustralia.gov.au/cs1670. It may not include all of the relevant information on this topic. Please consider any relevant site notices at https://www.servicesaustralia.gov.au/site-notices when using this material.