International application for an Australian child support assessment form (CS1665)

Use this form to apply for an Australian child support assessment if you’re living outside Australia, excluding New Zealand.

Different rules apply for child support if you’re living in New Zealand. There are specific child support arrangements between Australia and New Zealand. Contact New Zealand Inland Revenue for more information.

If you live in a reciprocating jurisdiction you need to submit your application through your court or administrative maintenance authority.

If you live in a non-reciprocating jurisdiction email us the completed form and any other relevant information.

Read more about reciprocating jurisdictions for child support, and confirm if we have an agreement with the country you live in.

Reciprocating child support authorities

Reciprocating child support authorities should email the completed form and any other relevant information to us.

If you live in Australia

If you live in Australia applications for child support assessments can be completed online. Read more about child support assessments, including collection and payment options.

If you use assistive technology because of a disability or impairment we provide help for assistive technology users of forms.

Page last updated: 27 August 2017