Register GST and ITW tax types

You can register or reactivate your client's registration for goods and services tax (GST) and income tax withholding (ITW) using the BAS Agent Portal.

Where to start

Once you have logged into the portal, enter your client's Australian business number (ABN) on the homepage under Your clients and select Client details from the drop-down menu.

Select the Registrations radio button to view the tax type summary and add a tax type.

Alternatively, you can find your client using the Client directory.


When registering a tax type using the portal:

  • you must select an activity statement account, and
  • your client must have an active ABN.

You cannot register a tax type:

  • for a deceased client
  • for government-type entities
  • where the client's account is insolvent
  • if the tax type already exists on another account.

After you finish

Registering your client for GST and ITW using the portal will update records immediately.

Log in to the BAS Agent Portal
Last modified: 08 Jul 2015QC 26588