ABR Registry

What is the ABR?

The Australian Business Register (ABR) is the authoritative government database of all registered Australian business entities. It is maintained by the Australian Taxation Office (ATO) and contains registration status, entity type, GST registration, and address information for every ABN holder.

The ABR is publicly accessible at abr.business.gov.au.

What Osapher checks

Every ABN verification queries the live ABR API — not cached data. Osapher retrieves:

• ABN registration status (Active/Cancelled)
• Legal entity name
• Entity type classification
• GST registration status
• Registered state or territory
• Registration date
• Trading name (if registered)

ABN format

An ABN is an 11-digit number. When calling the Osapher API, pass the ABN as digits only — no spaces or hyphens:

// Correct
{ "queryValue": "YOUR_ABN_HERE" }

// Also accepted (Osapher strips formatting)
{ "queryValue": "YOUR_ABN_HERE" }

Registry fields

Disclaimer

ABR data reflects the state of the registry at the time of the API call. Registry data may lag behind real-world events. Osapher is not responsible for the accuracy of data provided by the Australian Business Register. Use verification results to support — not replace — your own compliance processes.