Updating or cancelling your ABN

You have a responsibility to keep your ABN details up to date. You can update your details online or by contacting the ABR. If your business structure changes you may need to cancel your ABN.

• • Update your ABN details
  • How to update your Australian business number (ABN) details. You must update information within 28 days of becoming aware of any changes to your ABN details.
• • Cancel your ABN
  • How to cancel your Australian business number (ABN) if your business has sold, closed down, or stopped operating.
• • Changing your business structure
  • If your business structure changes you may need to cancel your ABN and apply for a new one.