Apply for an ABN in Australia.
Operating a business in Australia typically involves choosing the right structure, obtaining a TFN, and applying for an Australian Business Number (ABN). The ABN is your unique 11-digit identifier across the ATO and the wider business environment.
Apply for an ABN in Australia.
Operating a business in Australia typically involves choosing the right structure, obtaining a TFN, and applying for an Australian Business Number (ABN). The ABN is your unique 11-digit identifier across the ATO and the wider business environment.
What is an ABN and why you need one
The ABN identifies your business to government and other organisations. You'll need one to register for GST, claim energy grants credits, deal with other businesses on invoices, withhold at the correct rate, and operate as a substantive entity. Without an ABN, payers may withhold tax at 47% from amounts owed to you.
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How to apply for an ABN
Applicant name and contact details
Trading and postal addresses
Business structure (sole trader, company, partnership, trust)
A detailed description of business activity
Information about associated parties (directors, partners, trustees)
How we help you make it happen.
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ABN entitlement is tested objectively — you must be genuinely carrying on (or commencing) an enterprise in Australia. You're typically eligible if you are:
- Carrying on a business in Australia
- Running an enterprise (including a profession, trade, vocation or one-off commercial activity)
- Supplying goods or services in the Australian market
- A company registered under the Corporations Act in Australia
