Contact us

If you need more help read our online guides or call us.

You can call the Child Support Enquiry Line.

We’ll ask you some questions. You’ll need to know:

  • your Child Support Reference Number
  • if you’ve used the app in the past
  • if you’re using 3G, 4G or a wireless network (Wi-Fi)
  • if you’re using the latest version of the app
  • the type of device and operating system you're using
  • if you’ve set your phone to a foreign language
  • if you can sign in to your Child Support online account - if not, the date you last signed in.

Contact numbers available on this page.

Child Support enquiry line

Use this line if you have a question about child support or need to report a change in your circumstances. Let us know if you need an interpreter and we’ll arrange one for free.

Monday to Friday 8:30 am to 4:45 pm

There are other ways you may want to contact us.

Page last updated: 7 August 2026.
QC 51809