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ABN holders can now include 4 additional ANZSIC codes

Businesses can now include up to 4 additional business activities when updating their Australian business number (ABN) details on the Australian Business Register (ABR).

Why update your ABN details

Previously ABN holders had the ability to register only one main business activity. This meant ABNs couldn’t capture the full range of operations undertaken.

In addition, updating your ABN details is important to ensure:

  • the right people have the right permissions to act on behalf of a business

  • government agencies have up-to-date information – which can be used by emergency services or other agencies to contact businesses or provide targeted assistance in times of emergency

  • you’re ready for new government services when they become available

  • your ABN accurately reflects the range of business activities you undertake.


Key changes to ABR details

Business Industry Code

In addition to your main business activity, you can register an additional 4 business activities and the associated Australian and New Zealand Standard Industrial Classification (ANZSIC) code.

Using the right code is important as it ensures you are lodging your return in the right category. You can find your business activities by the Business Industry Code Tool.

Additional business activities

To add business activities, complete the following steps.

  • Log in to the ABR using your myGovID and select Update ABN record.

  • Select ANZSIC and business details then Update ABN record.

  • Select ANZSIC and business details then Additional business activity at

    1. Describing the business activity – type a short description that best describes the business activity to search for in the categories

    2. select the drop-down menu and the Category that best matches your business activity

    3. ANZSIC Code & description – this will automatically update based on what activity and category you have selected.

  • Select Declaration and Submit.

  • To add additional business activities, repeat the steps above from step 2.


How to update your ABN details

The fastest way to update your details is through ABR online services. Log in using myGovID and Relationship Authorisation Manager (RAM).

All changes made to your ABN online will take effect immediately. There are details you can’t change in ABR online services, see What can’t be updated.

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