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.
http://ato.gov.au/businesses/pathway.asp?pc=001/003/021&mfp=001&mnu=59#001_003_021
Apply for an ABN (Australian Business Number)
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.
http://australia.gov.au/service/apply-for-an-abn-australian-business-number
Lookup an Australian Business Number (ABN)
ABN Lookup provides access to the publicly available information provided by businesses when they register for an Australian Business Number (ABN).
http://australia.gov.au/service/lookup-an-australian-business-number-abn
