ABN (Australian Business Number)
ABN essentials
Australian Taxation Office information about the Australian Business Number (ABN), a single identifier for all business dealings with the tax office and for dealings with other government departments and agencies.
ABN Lookup
ABN Lookup provides access to the publicly available information provided by businesses when they register for an Australian Business Number (ABN). This page also has a link to the Australian Business Register where you can register for an ABN.
Australian Business Register (Apply for an ABN)
The Australian Business Register (ABR) is a publicly available, online database that contains some of the information that is provided by businesses when they register for an Australian Business Number (ABN). Apply for an ABN and access and update your Australian business number (ABN) details online.
Minors Don't Need an ABN
Businesses are not required to withhold tax from transactions where the supplier is under 18 years of age and the payment does not exceed $120 per week.
