Starting a new business is a big milestone. But before you sell your first product or sign your first client, you’ll need to choose the right business structure. In Australia, many people start as a sole trader while others register a proprietary limited (Pty Ltd) company.
This choice affects your tax setup, your admin responsibilities, and how risk is handled if something goes wrong. The goal is to pick the structure that fits your current budget and where you want the business to go next.
Quick Answer: What’s The Difference?
- Sole Trader: you and the business are legally the same person.
- Company (Pty Ltd): the business is a separate legal entity with its own obligations.
Legal Entity Differences: You vs The Business
What Is a Sole Trader?
When you operate as a sole trader, there is no legal separation between you and your business. You typically use your own TFN for tax dealings and you personally sign contracts. If there’s a dispute, the claim is usually against you, not a separate entity.
What Is a Pty Ltd Company?
A proprietary limited company is treated as its own “legal person.” It can own assets, enter contracts and take on debts in its own name. This legal separation is one reason many people choose a company structure once their business grows.
Limited vs Unlimited Liability (And What It Really Means)
Sole Trader: “Unlimited Liability”
As a sole trader, you’re generally responsible for business debts and legal obligations personally. Practically, that means if the business can’t meet its obligations, creditors may pursue recovery through the usual legal processes because there is not a separate entity standing between you and the business.
Company: “Limited Liability” Is Helpful But Not Absolute
A company structure can limit shareholder liability in many situations, however this protection is not a blank cheque. Directors can still face personal liability in some scenarios, especially if legal duties aren’t met (for example issues involving employee entitlements or insolvent trading).
Important Practical Note (Often Missed): Personal Guarantees.
Even with a Pty Ltd company, banks, suppliers, and landlords may ask you to sign a personal guarantee, especially for commercial leases. If you sign one, you may personally be on the hook even though the business is a company.
Setup And Ongoing Costs: Sole Trader vs Company
Sole Trader Costs
Being a sole trader is usually the cheapest way to start. ABN registration is typically free and admin is simpler because business income is usually handled through your individual tax return.
Company Costs (Pty Ltd)
A Pty Ltd company has higher setup and ongoing compliance costs.
For the 2025–2026 period, the ASIC registration fee for a proprietary company was $611. Companies also have ongoing obligations (including an annual review fee and more detailed record-keeping) which often increases accounting and admin costs over time.
Tax Basics (General Guidance – Not Personal Advice)
Sole traders are taxed at individual marginal tax rates which increase as profits rise. Companies are taxed differently depending on eligibility and circumstances and the main advantage is often around how profits are retained and distributed, not just “saving tax.”
Tax outcomes depend on your total income, business model, and how you pay yourself so it’s best to treat this as general information and get advice tailored to your situation.
Scalability: Bringing In Partners, Investors, and Staff
If your plan is to grow, raise capital, or bring in partners – a company structure is usually more flexible because it can issue shares and formalise ownership. It can also support employee equity arrangements more easily than a sole trader setup.
NSW-Specific Triggers People Forget (But Matter As You Grow)
If you’re operating in NSW, there are compliance triggers that start to matter as you hire staff and scale. For example:
- NSW Payroll Tax Threshold: $1,200,000
- Workers’ Comp/ICare Wages Threshold: $7,500 (as a trigger for mandatory workers’ compensation insurance through iCare)
These don’t automatically mean “you must incorporate,” but they do signal when you should review structure and compliance as the business grows.
When To Consider Moving from Sole Trader To A Company
You don’t need to get everything perfect on day one. Many businesses start as sole traders, then switch later.
You may want to review moving to a company structure if:
- You’re taking on higher-value contracts (higher risk exposure)
- You’re hiring staff and managing more compliance
- You’re signing a commercial lease (and may be asked for a personal guarantee)
- You want to bring in investors or partners
If You Do Switch, Here’s What’s Often Involved
Common steps include registering the company, applying for a new ABN/TFN for the company, transferring the business name (if relevant) and updating contracts/leases into the company’s name.
The Verdict: Choosing The Structure That Protects Your Future
Choosing between sole trader vs company is a balance between simplicity now and protection + scalability later. A sole trader structure is a practical, lean way to start, while a Pty Ltd company can make more sense once risk, contracts, staff or growth plans become serious.
If you’re unsure, it’s worth getting advice before you lock in a structure – especially if you’re entering leases, hiring or restructuring an existing setup. For expert advice on selecting and registering the right structure for your needs, reach out to the team at SlaterWatts Lawyers today.