How to Become a Sole Trader in Australia: Step-by-Step

What is a sole trader?🔗

A sole trader is the simplest and cheapest business structure in Australia: no separate legal entity, no ASIC annual review fees, no complex paperwork. You and the business are the same legal entity, so you have full control and keep all the profits. The trade-off is that you are personally liable for all business debts and claims, so your personal assets are on the line, and you pay tax at individual marginal rates rather than a flat company rate. It is the right call for the vast majority of people just getting going.

Do you need to register as a sole trader?🔗

Here is the bit that surprises people: there is no formal registration process to become a sole trader. You become one simply by starting to operate a business. What you do register for are the specific things below (an ABN, sometimes a business name, and GST if you hit the threshold), but there is no government form that says "I am now a sole trader". Compare that to a company, which needs ASIC registration, directors and ongoing compliance.

The setup, step by step🔗

1. Get a Tax File Number (TFN) if you do not already have one (most residents do). It is free from the ATO and you need it to apply for your ABN.
2. Apply for a free ABN at abr.gov.au (about 15 minutes). Quote it on every invoice, because without it clients are legally required to withhold 47% of your payment. See the ABN guide if yours lapsed.
3. Register a business name with ASIC only if you want to trade under a name other than your own legal name ("Jane Smith" needs none; "Bright Spark Electrical" does). It costs about $47 for one year or $108 for three, and note a business name gives no legal protection.
4. Register for GST if your annual turnover is or will be $75,000 or more (or register voluntarily to claim GST credits). Then you charge 10% and lodge a BAS.
5. Open a separate bank account and start simple bookkeeping from day one; see do you need a business bank account.
6. Issue proper invoices and keep records for five years; our invoicing guide covers the required fields.

Your tax and super🔗

You report all business income in your individual tax return (not a separate business return) and pay tax on your net income at individual marginal rates plus the Medicare levy. Once your tax bill passes a threshold the ATO puts you on PAYG instalments (quarterly prepayments that prevent a nasty lump sum), so set aside roughly 30 to 40% of net income from the start.

Insurance to consider🔗

Because you have unlimited personal liability, insurance is essential risk management even though it is rarely legally required. Public liability covers injury or property damage caused by your work (essential for tradies and anyone visiting or hosting clients). Professional indemnity covers claims that your advice or services caused a financial loss (essential for consultants, designers, IT and similar). Income protection replaces part of your income if illness or injury stops you working, which matters because a sole trader has no sick leave at all; premiums are generally tax-deductible.

Sole trader vs company: the honest comparison🔗

Most people overthink this. Start as a sole trader, get moving, and revisit a company once you are consistently earning above roughly $100,000 or your work carries real liability risk. Our sole trader vs company guide digs into the numbers.

Frequently asked questions🔗

Sources🔗

1. Australian Business Register, applying for an ABN
2. ATO, starting a business
3. business.gov.au, register a business name
4. business.gov.au, types of business insurance

General information only, not financial, legal or tax advice. It does not take your circumstances into account. Fees, thresholds and rules change, so verify current details with the ATO, ABR and ASIC or a registered tax agent before acting.