Getting an ABN is free through the Australian Government's Business Registration Service. Here's how to do it right the first time.

Step 1: Check you're entitled

You need to be carrying on a business or enterprise — not just planning one in the distant future, and not working as an employee. The ABR explains this on its ABN entitlement page. This is the most common reason applications are refused.

Step 2: Choose your structure

Most individuals start as a sole trader. Partnerships, companies and trusts have extra steps — a company, for example, must be registered with ASIC first to get an ACN.

Step 3: Gather your information

  • Your TFN (strongly recommended for sole traders)
  • Your personal details and residential address
  • A clear description of your business activity
  • Your business address and start date
  • Whether you'll register for GST

Step 4: Apply online

Complete the application on the Business Registration Service. Answer the activity questions specifically — "food delivery with my own bicycle" is better than "services".

Step 5: Get the outcome

If all information is correct, many applicants get their ABN as soon as they submit. Some applications are reviewed, which can take up to 20 business days. See how long it takes to get an ABN.

Mistakes that lead to refusal or review

  • Applying as an employee rather than a business
  • A vague business activity description
  • Details that don't match ATO records (name, date of birth, TFN)
  • Choosing the wrong business structure

Optional extras

  • Business name — registered with ASIC, for a fee, if you trade under a name other than your own.
  • GST — required from $75,000 turnover a year, optional below that.

Applying yourself is free. If you'd like us to check your entitlement and details first, see our ABN registration service (99–199 AUD).