How to cancel your Australian business number (ABN) if your business has sold, closed down, or stopped operating.

Changes to the Australian Business Register (ABR) will allow up to 4 extra business activities to be recorded against your Australian business number (ABN).

If you were prompted to visit this page during your ABN application process, contact us on 13 92 26 to complete your application.

Government agencies can only apply for an ABN using a paper form.

You can request that your ABN details not be disclosed publicly.

You can update your details online or by contacting the ABR. If your business structure changes you may need to cancel your ABN.

You can update your client's details online via Tax Agent services or by contacting the ABR. If their business structure changes their ABN may need to be cancelled.

If you’re a director of a company in Australia, you must apply for a director ID. Find out who needs to apply and how.