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Home/Resources/How to Register for an ABN in Australia
Business Essentials

How to Register for an ABN in Australia

Monday 23 March 2026·5 min read
How to Register for an ABN in Australia

Getting your business off the ground in Australia requires several crucial steps, and one of the very first is securing your Australian Business Number (ABN). Whether you’re a sole trader, partnership, company, or trust, understanding abn registration australia is key to operating legally and smoothly. This guide breaks down everything you need to know about ABN registration-from eligibility to application, and what to do once you’ve received your ABN.

What is an ABN and Why is it Important?

An Australian Business Number (ABN) is an 11-digit identifier issued by the Australian Business Register (ABR), managed by the Australian Taxation Office (ATO). It serves as a unique identity for your business and is essential for:

  • Registering for Goods and Services Tax (GST)
  • Dealing with the Australian Taxation Office (ATO) and other government agencies
  • Invoicing clients and claiming GST credits
  • Registering a business name with ASIC (Australian Securities and Investments Commission)
  • Opening business bank accounts and applying for loans

Without an ABN, your business activities can be hampered by tax withholding and compliance issues.

2.3 million
Number of active ABNs as of 2023
Reflecting the vibrant and diverse business environment in Australia

Who is Eligible for ABN Registration in Australia?

Before applying, you need to confirm your eligibility. You can register for an ABN if you:

  • Are carrying on or starting an enterprise in Australia (including sole traders, partnerships, companies, trusts, and non-profits)
  • Have a business structure registered in Australia
  • Are a foreign resident carrying on business in Australia or making supplies connected with Australia

Keep in mind:

  • If you’re an employee only with no other business activity, you generally don’t need an ABN.
  • Registering for an ABN does not automatically register your business name - you need to register with ASIC separately if you trade under a name other than your own.

Step-by-Step Guide to ABN Registration Australia

Registering for an ABN is a straightforward process that you can complete online in under 30 minutes. Here’s how:

1

Step 1: Gather Required Information

Before you start, prepare the necessary details: - Your tax file number (TFN) - Details of your business structure (sole trader, partnership, company, trust) - Business activity and main business location - Contact details and date business started

2

Step 2: Apply Online via the Australian Business Register

Visit the official ABR website (abr.gov.au) and complete the online ABN application form. The process is free if done directly through the ABR.

3

Step 3: Review and Submit

Double-check your details for accuracy before submitting. Errors can delay processing or cause issues with tax compliance.

4

Step 4: Receive Your ABN

Most ABNs are issued immediately upon successful application, but some may require further review by the ATO.

Tip
Applying directly through the official ABR website is the safest and most cost-effective method. Avoid third-party services that charge unnecessary fees.

What to Do After You Get Your ABN

Congratulations! Once you have your ABN, there are a few essential next steps to ensure your business is compliant and ready to operate:

  • Register for GST if your annual turnover is $75,000 or more (or $150,000+ for non-profits).
  • Register a business name with ASIC if you’re trading under a name other than your own.
  • Set up record-keeping systems for tax and accounting purposes.
  • Open a business bank account using your ABN to separate personal and business finances.
  • Consider securing a professional domain name for your website. Platforms like Dotto offer a wide selection of domain names ideal for Australian businesses looking to build their brand online.

ABN Registration and State-Specific Considerations

While ABN registration is handled federally through the ABR, certain business activities may require state or territory licenses or permits. For example:

  • New South Wales (NSW): Tradespeople and builders may need licenses from NSW Fair Trading.
  • Victoria (VIC): Food businesses must register with local councils.
  • Queensland (QLD): Certain industries require permits from the Office of Fair Trading or other regulators.

Checking your state’s business portal can ensure you meet all local compliance requirements alongside ABN registration.

Common ABN Registration Mistakes to Avoid

Many new business owners trip up on minor but costly errors during ABN registration:

  • Using incorrect business structure details
  • Forgetting to declare your main business activity
  • Applying for an ABN before officially starting your business
  • Neglecting to register for GST when required

Double-check all information and seek advice from a trusted accountant or business advisor if unsure.

Important
Keep your ABN details up to date. Changes in business structure, address, or activity require notification to the ABR within 28 days to avoid penalties.

Summary and Final Thoughts

Registering for an ABN is an essential step in establishing your business in Australia. It unlocks access to tax benefits, business credibility, and compliance with government regulations. By following the steps outlined above and staying informed about your obligations, you set your business up for success.

Key Takeaways
  • An ABN is required for most business activities in Australia.
  • You can apply online for free via the ABR website.
  • Register for GST if your turnover meets the threshold.
  • Keep your ABN details current and meet state-specific licensing requirements.
  • Consider securing a professional domain name through providers like Dotto to establish your online presence.

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