The Australian Business Number (ABN) is a single identifier used for all dealings with the Australian Taxation Office and other business entities and agencies.

Do You need an ABN?

Businesses need an ABN and GST registration to claim GST credits for any GST paid on goods/services you have used in your business. Where your business invoices for goods or services you will need to quote your ABN to prevent other businesses from withholding tax from the payment at the highest marginal rate.

An ABN is necessary to interact with the ATO on GST, the Diesel and Alternative Fuels Grants Scheme, Luxury Car Tax and Wine Equalisation Tax. Similarly, businesses that need to apply to the Tax Office for endorsement as gift deductible recipients or income tax exempt charities will need an ABN. You can also use an ABN to interact with the Australian Tax Office on the PAYG system and Fringe Benefits Tax.

To be entitled to an ABN, you must be:

  • A Company registered under Corporations Law in Australia and business entities carrying on an enterprise in Australia

  • A non-profit organisation with a turnover of $150,000+ (for GST purposes)

  • A superannuation fund

  • Certain entities (sole traders, companies, partnerships, trusts and superannuation funds) can apply for an ABN on line