What is the Australian Business Register (ABR)?

The Australian Business Register (ABR) is an extensive database of identity information provided by businesses when they register for an Australian business number (ABN).

The ABR makes it easier for businesses and all levels of government to interact using a unique identifier – the ABN.

The ABR provides instant online access to ABN details and transactions, allowing you to:

check and verify information such as goods and services tax (GST) registration status of other businesses for ordering and invoicing
register for an ABN and other tax obligations such as GST and pay as you go withholding.
apply for a tax file number (non-individuals only)
access your own ABN details and update them as required, and
apply to cancel your ABN.

The ABR was established under s.24 of the New Tax System (Australian Business Number) Act 1999.