Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
Choosing a business structure is one of the first big decisions you’ll make as a founder in Australia. It shapes your legal risk, tax position, credibility with customers and investors, and how smoothly you can scale.
Most small businesses start as either a sole trader or a company. Both can work brilliantly - it really depends on your goals, your risk profile and where you’re heading over the next 12–24 months.
In this guide, we’ll break down the practical differences in plain English, compare costs and admin, explain liability and asset protection, and walk you through a simple setup pathway so you can move forward with confidence.
What’s The Difference In Australia?
The key difference is legal separation. A sole trader is you, operating the business as an individual (you can also register and trade under a business name). A company is a separate legal entity registered with the Australian Securities & Investments Commission (ASIC). That separation sits behind most of the practical pros and cons you’ll weigh up.
Sole Trader At A Glance
- You operate as an individual using your Australian Business Number (ABN).
- Setup is quick and low cost, and ongoing admin is lighter.
- Profits are taxed at your personal marginal tax rates.
- You have unlimited personal liability for business debts and claims.
Company At A Glance
- The company is a separate “legal person” with its own Australian Company Number (ACN), owned by shareholders and managed by directors.
- There’s more setup and ongoing compliance (ASIC obligations, company records, and an annual review).
- Profits are taxed at the company tax rate and can be retained for reinvestment or paid out as dividends.
- Limited liability usually protects your personal assets, subject to important exceptions for directors.
It’s also worth noting a business name isn’t a structure - it’s simply a trading name you can register as a sole trader or a company. If you’re weighing up identity and registration issues, this comparison of a business name vs company name is a helpful starting point.
Taxes, Costs And Admin: How Do They Compare?
While your tax outcome depends on your personal circumstances (and you should speak with an accountant for tailored advice), there are some clear structural differences to keep in mind.
Set-Up Costs
- Sole trader: Applying for an ABN is free. If you trade under a name that isn’t your personal name, you’ll also pay a fee to register a business name.
- Company: ASIC charges a registration fee, and you’ll need foundational documents (such as a constitution and registers). Many founders prefer a done-for-you Company Set Up so everything is correct from day one.
Ongoing Compliance And Admin
- Sole trader: Simpler bookkeeping, your individual tax return, and Business Activity Statements (BAS) if registered for GST.
- Company: Company tax return, ASIC annual review fee, and proper company records (minutes, registers). Directors must also meet legal duties. If a director lives overseas, check the Australian resident director requirements before you incorporate.
Tax At A High Level
- Sole trader: Profits are taxed at your personal marginal rate. This can be efficient at lower income levels but scales as your total income grows.
- Company: Profits are taxed at the company rate. You can retain profits for growth or distribute dividends (which may carry franking credits). You’ll still pay personal tax on any salary or dividends you receive.
GST And Other Registrations
Most businesses must register for GST when their GST turnover is $75,000 or more (projected or actual) in a 12‑month period. Some industries must register regardless (for example, ride-sourcing and most taxi services). Not-for-profits have a higher threshold. GST obligations are similar across structures - the difference is in how profits are taxed and reported.
PAYG withholding applies if you pay employees or some contractors. Superannuation and payroll tax may also be relevant as you grow. Because tax is highly fact-specific, it’s sensible to get accounting advice early so you set things up correctly.
Do You Need An ABN To Invoice?
Strictly, you can issue an invoice without an ABN, but the payer may be required to withhold tax at the no‑ABN withholding rate (currently 47%). In practice, if you’re carrying on an enterprise in Australia, getting an ABN is standard and often expected by customers. You’ll also need an ABN to register for GST.
Liability, Risk And Asset Protection
This is the big one for many founders. Your structure changes how risk flows to your personal assets if the business faces debt or a claim.
Sole Trader Liability
There’s no legal separation between you and the business as a sole trader. If the business can’t pay a debt or a claim is made, creditors can pursue your personal assets (for example, your car or home).
Insurance can reduce some risk, and solid customer and supplier contracts help. But legally, your personal and business liability are the same.
Company Liability
A company is a separate legal entity. Shareholders generally have limited liability and are only at risk up to the amount they invested for their shares. This can provide a meaningful layer of protection for your personal assets if the business runs into trouble.
However, there are important exceptions. Directors can be personally liable in certain situations - such as providing a personal guarantee, trading while insolvent, or failing to meet obligations around tax and superannuation. Good governance and accurate records matter just as much as your choice of structure.
Perception And Deal-Making
Many customers, suppliers and investors are used to dealing with companies. In some industries and larger contracts, a company structure can look more established and may make it easier to negotiate terms (for example, including reasonable liability caps in your standard customer agreement).
Growth And Funding: Will Your Structure Hold You Back?
Think about where you want your venture to be in 12–24 months. If you expect to grow, hire, or bring on a co‑founder or investors, a company often makes the path smoother.
Ownership And Decision-Making
Companies can issue shares, appoint directors and set rules through a Company Constitution. Where there’s more than one founder, a Shareholders Agreement can clarify ownership, how decisions are made, how new shares are issued and what happens if someone exits.
Plenty of businesses also adopt or update a Company Constitution so the rules match how the founders want to operate as the company grows.
Bringing In Capital Or Key Talent
Raising capital typically requires a company structure so you can issue shares or options and provide appropriate investor documentation. If you want to incentivise key hires, equity or an options plan is far easier to manage within a company than as a sole trader.
Exiting Or Selling
Companies lend themselves to clean exits. You can sell shares in the company or sell business assets through a structured process. As a sole trader, the business and you are the same legal person, which can make a sale or partial exit more complex.
Brand And IP Protection
Regardless of structure, it’s smart to protect your brand from the start. Registering a trade mark for your brand name or logo can prevent others using it in Australia. When you’re ready, you can move to register your trade mark to secure your brand assets.
Step-By-Step: Choosing And Setting Up Your Structure
Here’s a straightforward pathway you can follow. Not every step applies to every business - treat this as a practical checklist.
1) Clarify Your Goals And Risk Profile
- Map your short-term (6–12 months) and medium-term (1–3 years) goals.
- Identify risks: contract risk, product liability, debt or finance, regulatory exposure, cash flow.
- Decide whether keeping costs ultra‑low (sole trader) or building in protection and scalability (company) matters more right now.
2) Choose Your Structure
- Sole trader if you want minimal setup, you’re testing a concept, and exposure is relatively low.
- Company if you want limited liability, plan to grow or hire, or will engage in larger contracts and partnerships.
3) Register The Essentials
- ABN: Apply for an ABN if you’re carrying on an enterprise in Australia. It’s standard practice and required for GST registration.
- Business name or company: If you’re trading under a name that isn’t your personal name, register a business name. If you’re incorporating, register the company with ASIC. If you want a smooth, done‑for‑you setup, consider a guided Company Set Up.
- Directors and officeholders: Confirm director eligibility and any residency rules early, especially if a founder is overseas. Check the Australian resident director requirements to avoid delays.
- Tax registrations: Register for GST when required, and set up PAYG withholding if you’ll pay staff.
4) Put Your Core Legal Documents In Place
- Customer Terms / Service Agreement: Set clear rules with clients covering scope, deliverables, fees, IP and liability caps. If you sell services or products, a tailored Goods or Services Agreement can save headaches later.
- Privacy Policy: If you collect personal information (for example, website enquiries, bookings or marketing data), publish a compliant Privacy Policy and use clear collection notices.
- Website or App Terms: If you operate online, use website terms to set acceptable use and limit risk.
- Supplier / Contractor Agreements: Lock in timelines, quality standards, IP ownership and liability with consistent contracts.
- Shareholders Agreement (companies): If there’s more than one founder or you plan to raise capital, put a Shareholders Agreement in writing early.
- Company Constitution (companies): Ensure your Company Constitution matches how you want to run the company.
5) Protect Your Brand And IP
- Search your proposed name and check for conflicts in your industry.
- Register trade marks for your brand name and logo to secure your rights across Australia.
- Use non‑disclosure agreements (NDAs) when sharing sensitive information before deals are signed.
6) Build Operational Foundations
- Finances: Open dedicated bank accounts. Separating personal and business finances is best practice for sole traders and essential for companies.
- Insurance: Consider cover appropriate to your risk profile (public liability, professional indemnity, cyber).
- People: If you’re hiring, issue proper Employment Contracts and put baseline policies in place from day one.
7) Stay Compliant
- Sole trader: Track income and expenses, lodge BAS (if GST‑registered) and your annual individual tax return.
- Company: Maintain registers and minutes, lodge your company tax return, pay the ASIC annual review fee, and ensure directors meet their duties.
When Should You Switch From Sole Trader To Company?
There’s no one-size-fits-all answer, but common triggers include approaching higher personal tax brackets, signing larger customer contracts, hiring staff, taking on external debt or investment, or wanting clearer separation between your personal and business finances.
If you’re unsure, speak with an accountant about tax and a lawyer about risk and contracts. Many founders start as sole traders to test an idea and then incorporate once revenue and risk increase.
Key Takeaways
- A sole trader is fast and low-cost to set up, but there’s no separation between you and the business - you’re personally liable for debts and claims.
- A company is a separate legal entity that usually provides limited liability, greater credibility and cleaner pathways for investment and growth.
- Tax outcomes differ by structure and your circumstances. Sole traders pay personal marginal rates; companies pay the company rate and can retain or distribute profits - speak with an accountant for tailored tax advice.
- Consider your 12–24 month plan. If you’ll grow, hire or bring in co‑founders or investors, a company typically gives you the structure you’ll need (often paired with a Shareholders Agreement and fit‑for‑purpose Company Constitution).
- Whatever you choose, put core protection in place early: clear customer terms, a compliant Privacy Policy, supplier agreements and brand protection through trade marks.
- Get your foundations right from day one. Changing structures later is possible, and it’s easier if your records, contracts and registrations are already in good order.
If you’d like a consultation on choosing between a sole trader and a company - and getting the legal setup right for your goals - you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.







