ABN Lookup gives you free access to public Australian Business Number (ABN) information from the Australian Business Register.
You can use it to:
- check if an ABN is active or cancelled
- see the business type and GST status
- view public details provided to the ABR
- see historical trading names (where available).
No login is needed.
Doing multiple searches? Use ABN Lookup tools to help you.
Who ABN Lookup is for
ABN Lookup can be used by:
- The public - to check a business before buying
- Businesses - to check suppliers, partners or their own details
- Accountants, tax agents and advisers - to verify business information
- Government agencies - to confirm business identity.
Manage an ABN
To apply for, update or cancel an ABN, go the Australian Business Register (ABR) 
.
Keep your ABN details up to date
Accurate ABN details help government agencies confirm your identity and check if you are eligible for grants and emergency support.
You must update your ABN within 28 days if your details change or your business stops operating.
Your ABN may be cancelled if records show you are no longer carrying on a business.
ABN data for your systems
Use our free web services to validate ABNs, pre-fill forms and keep your information accurate and up to date. Learn more about our ABN Lookup web services.