You can access your clients' Australian business number (ABN) details online using the Australian Business Register (ABR).
You can use your Digital ID, such as myID, to log in to the Tax professional servicesExternal Link section on the ABR websiteExternal Link to:
- change secure ABN information (for example, postal address and public officer) and receive confirmation of the change in the same internet session
- apply for a tax file number (TFN)
- register for pay as you go (PAYG) or goods and services tax (GST)
- cancel an ABN.
If your ABN changes
Changes to your tax or BAS agent registrationExternal Link can lead to a change in your ABN.
If this happens, you'll need to make sure:
- your ABN details are updated in the ABR
- the correct ABN is linked to your Digital ID, such as myID in RAM - see myGovID and RAM for tax professionals.
See also