You can cancel your Australian business number (ABN) online using AUSkey or Manage ABN Connections. All changes you make online to your ABN will take effect immediately.
You should cancel your ABN if your business:
If you're unable to cancel your ABN using the link above, contact us or lodge a form by mail.
Cancelling an ABN will cancel:
Before you cancel your ABN, ensure you meet any lodgment, reporting and payment obligations with any government agencies you deal with.
Note: If you want to cancel your pay as you go withholding, you must cancel it before you cancel your ABN.