Tax Facts - Australian Business Number
              The Australian Business Number (ABN) provides a single identifier when dealing with the tax office or other government departments and agencies. You need an ABN when interacting with the ATO regarding:
              
                - GST (eg to claim GST credits)
 
                - The Diesel and Alternative Fuels Grants Scheme
 
                - Luxury Car Tax
 
                - Wine Equalisation Tax 
 
                - Applying for an endorsement as a deductible gift recipient
 
                - Applying for an endorsement as an income tax exempt charity  
 
              
              NOTE: You can also use an ABN to interact with the ATO on the PAYG system and Fringe Benefits Tax.
              To qualify for an ABN, you must be a company registered under Corporations Law in Australia or a business entity carrying on an enterprise in Australia. You will need an ABN if:
              
                - Your GST turnover is $75, 000 or more
 
                - You are a nonprofit organisation with a GST turnover of $150, 000 or more
 
                - You need to be endorsed as a gift deductible recipient
 
                - You need to be endorsed as an income tax exempt charity  
 
              
              MORE: See the ABN Essentials section of the ATO website.