Add or cancel someone to act for you

Find out how to set up or cancel a Child Support acting arrangement.

You can set up or cancel a Child Support in a couple of ways.

Setting up an arrangement

Setting up a Child Support acting arrangement is a joint process by both you and the person who will act for you.

Form

You can set up an acting arrangement using the Representative authority form.

We’ll then set up the arrangement for you.

Letter of authorisation

If you can’t access the representative authority form, you can send us a letter of authorisation.

You need to sign and date the letter.

A letter of authorisation should include:

  • enough information to identify the person who will act for you
  • what details they can discuss with us
  • the date the arrangement will end.

You can submit the letter of authorisation one of these ways:

Phone

You can set up the arrangement by calling us on the Child Support enquiry line.

Cancelling an arrangement

You can cancel an arrangement at any time.

If you have a Child Support online account that is linked to myGov, you can cancel the arrangement online.

If you can’t cancel the arrangement online, you can call the Child Support enquiry line.

Page last updated: 26 March 2026.
QC 83777