Australian Business Register

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 registration 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 also:

• Digital ID and RAM for tax professionals
• Access Manager
• Tax Practitioners Board – registration and renewalExternal Link
• Online security
• Technical support

Find out about:

• Departing Australia superannuation payments (DASP) online system