Estimate of income for use in Child Support Assessment form (CS1670)

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.

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.

To fill in this form digitally you will need a computer and Adobe Acrobat Reader, or a similar program. You can download Adobe Acrobat Reader for free. If you can’t complete the form digitally, you can print it, complete it by hand and return it to us following the instructions on the form.

If you have a disability or impairment and use assistive technology, you may not be able to access our forms. If you can’t, please use self service, request someone to deal with us on your behalf, or contact us. We can help you access, complete and submit them.

Page last updated: 17 November 2022