Web services registration
The ABN Lookup web services allow you to integrate ABN Lookup validation and data into your own applications. Access to the ABN Lookup web services is free
To register for access to the ABN Lookup web services:
We will process your application and e-mail you an authentication GUID (Globally Unique Identifier) which is required
to access the ABN Lookup web services.
The following answers to common questions will help you to understand whether the ABN Lookup web services will meet your needs.
Can I update my ABN details using the ABN Lookup web services?
No, you cannot update your ABN details or apply for an ABN using the ABN Lookup web services. For more information see
Do I need to be register for access to the web services to search ABN Lookup?
No, you do not need to register for access to the web services to search the ABN Lookup web site. To search ABN Lookup, simply enter an ABN/ACN or name
in the box in the top right of each screen and press search.
provides additional search options.
If you have multiple ABNs or names to lookup, the free
ABN Lookup tools