Cancel/re-apply for an ABN

The Australian Business Register (ABR) External site maintains the information available through ABN Lookup and is responsible for cancelling and issuing ABNs.

  • To re-apply for (reactivate) your ABN:
    • If your ABN has been cancelled, you will need to re-apply for an ABN. Please refer to keeping the ABR up-to-date External site on the ABR website for more information.
    • Only when you have been issued with an ABN, will it show as 'active' on ABN Lookup.
  • To cancel your ABN
    • You must inform the Australian Business Register (ABR) if you have ceased trading or your business has been sold. Please refer to cancel your ABN External site on the ABR website for more information.
    • Only when your ABN has been cancelled on the ABR will it show as 'cancelled' on ABN Lookup.

As ABN Lookup cannot cancel or issue an ABN, please contact the ABR External site for further assistance.