Does a Sole Trader need an ABN?

Yes, a sole trader in Australia needs an ABN to legally operate their business and enjoy the associated benefits.
Here’s why:

Eligibility for an ABN 🧾

  • Intention to Engage in Commercial Activity: You must plan to run a business, not just a hobby.
  • Profit Intention: Your business should aim to make a profit.
  • Regular Activity: The work should be done regularly or recurrently.
  • Business-like Manner: Your activities should be systematic and organised, similar to other businesses in your trade.
  • Business Plan: Having a plan shows your commitment.
  • Relevant Knowledge or Skill: You should have expertise in your field.

Why You Need an ABN 🤔

  • Tax Invoices: To be paid correctly, you need to issue tax invoices with an ABN.
  • Withholding Tax: Without an ABN, clients must withhold tax at the highest rate from your payments.
  • Professionalism: An ABN makes your business look professional, helping you win clients.
  • Domain Names: An ABN allows you to register a .com.au domain, enhancing your online presence.
  • Business Name Registration: You need an ABN to register a business name, making your business look more credible.

ABN and GST 💼

  • Turnover Threshold: If your annual turnover is $75k or more, you must register for GST.
  • BAS Requirements: Having an ABN doesn’t mean you have to lodge a Business Activity Statement (BAS) unless you’re registered for GST.
  • Tax Return: As a sole trader, you only need to lodge one tax return, which includes your business income.

Other Considerations 💭

  • Business Insurance: Your insurance will be in your personal name, and your ABN might be noted on your policy.
  • Employing Workers: Sole traders can employ staff, but many accountants recommend a different structure (e.g., Pty Ltd) if you start hiring.

Do I need an ABN? 🔍

Yes, you need an ABN if you’re running a business in Australia. An ABN (Australian Business Number) is essential for legally operating your business, issuing tax invoices, avoiding withheld taxes, registering a business name, and appearing professional to clients. It also allows you to register for GST if your turnover exceeds $75k annually.


Tradiespace Can Help:

We have a selection of top-tier accounting providers specialising in tradie businesses. We’ve sourced the top tradie accounting providers to make it easy for you.

Visit our Accounting page to learn more about trades business accounting and to find or be matched with the best accounting provider for your needs.

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For more personalised advice, consult an accountant. While this information provides a general overview, your accountant can offer guidance tailored to your specific situation.

Does a Sole Trader need an ABN? Here’s the lowdown!

Editorial review: July 31, 2025
Adam Goodfellow is the founder of Tradiespace, Australia’s central trades hub helping business owners save money on software, finance, insurance, tools, and business essentials through exclusive partner deals and comparisons.

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