Sole Trader vs Company in Australia: Which Business Structure Suits You?

Sole trader vs company is one of the first real decisions every new Australian business owner faces, and it usually gets made in a hurry. Someone lands a first client, needs an ABN by Friday, and picks whatever is quickest. That works for a while. Then revenue grows, a contract asks for insurance, or a supplier wants a personal guarantee, and suddenly the structure matters a lot.

Your business structure in Australia shapes how much tax you pay, who is on the hook when something goes wrong, how much paperwork lands on your desk, and how easy it is to bring in a partner or sell later. A sole trader setup is cheap and simple, but it leaves your house and savings exposed. A Pty Ltd company offers limited liability and a flat company tax rate, but it costs more to run and comes with legal duties that regulators actually enforce.

That last point is where most guides go quiet. Plenty of people have treated a company as a shield for bad behaviour, from stripping assets out of a failing business to skipping tax and staff entitlements. Courts and regulators have jailed, fined and banned directors for exactly that.

This article compares both structures using 2026-27 figures, walks through real enforcement cases, and gives you a practical way to decide which option fits your business today and where it is heading.

What Is a Sole Trader in Australia?

A sole trader is simply you, running a business in your own name or under a registered business name. There is no separate legal entity. You own the assets, you sign the contracts, you keep the profit, and you carry every debt. It is the most common and cheapest business structure in Australia, and for many freelancers, tradies and side hustlers it is the right place to start.

Setting up takes minutes:

1. Apply for an Australian Business Number (ABN) through the Australian Business Register. It is free.
2. Register a business name with ASIC if you trade under anything other than your own name (about $47 for one year from 1 July 2026).
3. Register for GST once your annual turnover hits $75,000, or earlier if you choose.
4. Open a separate bank account so business and personal money do not blur together.

How a Sole Trader Is Taxed

A sole trader does not lodge a separate business return. Business profit goes into your individual tax return and is taxed at your marginal tax rate, plus the 2% Medicare levy. From 1 July 2026, the rate on income between $18,201 and $45,000 dropped from 16% to 15%, and it falls again to 14% from 1 July 2027, according to the ATO’s summary of the new personal tax cuts.

Taxable income (2026-27)	Marginal rate
$0 to $18,200	Nil
$18,201 to $45,000	15%
$45,001 to $135,000	30%
$135,001 to $190,000	37%
$190,001 and over	45%

At lower incomes this is a good deal. You get the $18,200 tax-free threshold and low-income offsets that a company never gets. The catch is at the top end: once profit climbs past $135,000, every extra dollar is taxed at 37% or 45% before Medicare, whether you spend it or leave it in the business.

Two more tax realities trip people up. First, sole traders cannot pay themselves a wage; you just draw money, and the whole profit is taxed. Second, if the business makes a loss, the non-commercial loss rules may stop you offsetting it against salary from a day job unless you pass certain tests.

Personal Liability: The Big Catch

This is the part people underestimate. As a sole trader you have unlimited liability. If a customer sues you, a supplier goes unpaid, or the ATO chases a debt, they can come after your personal assets: savings, car, and potentially your home. Insurance helps, but it does not cover unpaid trade debts or tax.

For a web designer working from a laptop, that risk is small. For a builder signing six-figure contracts, it can be life-changing.

What Is a Company (Pty Ltd) in Australia?

A proprietary limited company (Pty Ltd) is a separate legal entity under the Corporations Act 2001. It can own property, sign contracts, borrow money, and sue or be sued in its own name. Shareholders own it, directors run it, and in a small business those are often the same one or two people.

The key word is separate. The company’s debts belong to the company, which is where limited liability comes from. As the rest of this article shows, that protection has real limits.

How to Set Up a Company

1. Choose a name and check it is available on the ASIC register.
2. Appoint at least one director who ordinarily lives in Australia, and make sure every director has a Director ID.
3. Decide on shareholders and how many shares each holds.
4. Adopt the replaceable rules or a company constitution.
5. Register with ASIC (Form 201) and pay the fee. From 1 July 2026 a standard Pty Ltd costs $636 to register.
6. Get an Australian Company Number (ACN), then apply for an ABN, TFN and GST registration for the company.

After that, ASIC charges an annual review fee of $342 for a proprietary company from 1 July 2026, with late fees if you miss it. Add a separate company tax return, bookkeeping, and usually an accountant, and a small company commonly costs a few thousand dollars a year to run properly.

Company Tax Rate and How Owners Get Paid

Most small companies are base rate entities (aggregated turnover under $50 million and no more than 80% passive income) and pay a flat 25% company tax rate. Larger or mostly passive companies pay 30%.

That 25% only applies to profit the company keeps. Owners still need to get money out, and there are only a few legal ways to do it:

• Salary or wages as an employee of the company, taxed at your personal rates, with PAYG withholding and super.
• Dividends, usually franked, so you get a credit for the 25% the company already paid and top up to your marginal rate.
• Loans from the company, which must follow strict Division 7A rules or they get treated as unfranked dividends.

In plain terms, a company does not make tax disappear. It lets you defer some tax and smooth income across years.

Director Duties Are Not Optional

The moment you become a director you take on legal duties: act with care and diligence, act in good faith in the company’s interests, do not misuse your position or company information, and do not let the company trade while insolvent. You must keep proper financial records for seven years. Breaching these duties can lead to civil penalties, disqualification, and in serious cases criminal charges. Section five covers what that has looked like in practice.

Sole Trader vs Company: 7 Key Differences

Here is the sole trader vs company comparison at a glance, using 2026-27 settings.

Factor	Sole trader	Company (Pty Ltd)
Legal status	You are the business	Separate legal entity
Liability	Unlimited, personal assets exposed	Limited, with major exceptions for directors
Tax rate	Personal rates, 0% to 45% plus Medicare	25% (base rate entity) or 30%
Setup cost	ABN free, business name about $47	$636 ASIC registration plus advice
Yearly running cost	Low, one personal return	$342 ASIC fee, company return, bookkeeping
Control	Total, one decision maker	Directors and shareholders, formal records
Growth and exit	Hard to add owners or sell	Issue or sell shares, easier to bring in investors

1. Liability and Asset Protection

This is the headline difference in any sole trader vs company debate. A company’s creditors generally cannot chase your personal assets. But banks almost always ask small company directors for personal guarantees, landlords do the same on leases, and the ATO can make directors personally liable for certain unpaid taxes. Limited liability protects honest owners from bad luck. It does not protect anyone from their own bad conduct.

2. Tax: A Worked Example

Take a consultant with $150,000 profit in 2026-27. Figures are rounded and ignore super, offsets and accounting fees.

• As a sole trader: income tax of about $36,570 plus $3,000 Medicare levy, so roughly $39,570 in total.
• As a company paying a $90,000 salary and keeping $60,000: personal tax and Medicare on the salary come to about $19,320, and company tax on the retained $60,000 is $15,000. Total roughly $34,320, with $45,000 left inside the company.

That looks like a $5,000 win, but read the fine print. The $45,000 is not yours yet. When it is paid out as a dividend you top up the tax to your marginal rate. The company also costs more to run, which can eat a big chunk of the saving. The real benefit shows up when you genuinely want to retain profits to grow the business, buy equipment, or even out a lumpy income over several years.

One more trap: if your income comes mainly from your own personal skill or effort (think a solo IT contractor billing one client), the personal services income (PSI) rules can treat that income as yours anyway, wiping out the company advantage.

3. Setup and Running Costs

A sole trader can start for close to nothing. A company costs $636 to register and $342 a year to keep on the ASIC register, before accounting fees. For a business earning $40,000, those costs are hard to justify.

4. Paperwork and Compliance

Companies need minutes for key decisions, a share register, separate bank accounts, a company tax return, and ASIC updates within 28 days of most changes. If you employ staff, you run payroll for yourself as well. Sole traders mostly deal with a BAS (if registered for GST) and one tax return.

5. Control and Decision Making

A sole trader decides everything. In a company, decisions belong to the board and shareholders. For a one-person company that is a formality, but it matters the moment a co-founder or investor joins.

6. Funding, Growth and Selling

Investors buy shares, so they need a company. Banks and big clients often see a Pty Ltd as more established. Selling a company can be as simple as transferring shares, while a sole trader has to sell individual assets and goodwill.

7. Paying Yourself and Super

Sole traders have no compulsory super for themselves, which means many retire with very little. A director drawing a salary from their own company is generally an employee for superannuation guarantee purposes, which forces some saving but adds cost and admin.

The Legal Realities: What Past Illegal Activity Teaches Us

The honest version of the sole trader vs company question includes this: a company is not a magic shield. Australian regulators have spent the past decade pursuing people who used companies to dodge debts, tax and worker entitlements. The cases below come from ASIC, ATO and Fair Work Ombudsman actions and court decisions.

Illegal Phoenix Activity

Illegal phoenixing happens when a company is deliberately run into the ground or liquidated to avoid paying creditors, tax or staff, and the same business keeps running through a new company with the same people behind it. It is one of the main reasons regulators look hard at small company directors.

• Allan Saunders (Queensland, 2018): the sole director of Metropolitan Design pleaded guilty to 13 counts of breaching director duties after directing payments owed to the business into his personal account just before it collapsed. ASIC said his actions were designed to deny the ATO money it was owed. He received a 12-month jail sentence and was released on a good behaviour bond (ASIC media release 18-351MR).
• A Sydney sole director of nine companies: lodged false business activity statements between 2008 and 2011, defrauding the Commonwealth of $3.4 million. He was sentenced to six years in jail and ordered to pay $1.8 million in reparations. The ATO described it as classic phoenix behaviour: companies liquidated to avoid creditors and tax, with new companies running the same business under the same owners.
• Gene Farrelly (Queensland, 2023): disqualified by ASIC for five years after five construction and real estate companies collapsed owing more than $20 million. ASIC found he transferred a business to a related entity for no consideration.
• Mr Toyoda (NSW, 2023): disqualified for three years after indebted hospitality businesses were sold to new companies, which ASIC treated as illegal phoenix activity at the more serious end.

Director Penalty Notices: When Company Debt Becomes Personal

Many small business owners only learn about the director penalty regime when a letter arrives. Under it, directors become personally liable for a company’s unpaid PAYG withholding, net GST and superannuation guarantee charge. The ATO explains that once you are appointed, you are responsible for making sure these are lodged and paid on time, and that resigning does not erase liabilities that arose while you were in the chair (ATO guidance on director penalties).

Timing matters. If the company reports PAYG withholding or GST more than three months late, or never reports it, the penalty can generally only be cleared by paying the debt in full. Placing the company into administration will not help at that point. Law firm Astris reports the ATO issued more than 84,000 director penalty notices in 2024-25.

The lesson for anyone weighing sole trader vs company is blunt: the tax a company collects from staff and customers is not company money to spend. Treat it as held in trust.

Sham Contracting

Some businesses try to cut costs by calling employees “contractors” and asking them to get an ABN. That is sham contracting, and it applies whether you are a sole trader or a company hiring people.

• Australian Sales and Promotions (2016): a charity fundraising company was penalised $100,000 and its director $24,000 after misclassifying a backpacker as a contractor, even though the underpayment had been fixed.
• Quest South Perth Holdings: dismissed housekeepers and a receptionist, then re-engaged them as contractors doing the same work. The High Court ruled against the company in 2015, and penalties of $58,740 followed (Fair Work Ombudsman media release).
• A Pizza Hut franchisee (2018): $216,700 in penalties for sham contracting delivery drivers, plus giving false records to investigators.

Sole Traders Are Not Off the Hook

Sole traders cannot phoenix a company, but that is not a free pass. Because there is no separate entity, every tax debt, every fine and every court judgment is personal from day one. The ATO also targets undeclared cash income and false deductions, and a sole trader who employs people faces the same wage, super and sham contracting laws as any company.

What These Cases Have in Common

1. Money that belonged to someone else (the ATO, staff, creditors) was treated as the owner’s.
2. Records were poor, missing or false.
3. Problems were hidden instead of dealt with early.
4. The structure did not protect the people involved. In most cases it made the consequences worse, because directors carry duties that sole traders do not.

Which Business Structure Suits You? Sole Trader vs Company Scenarios

There is no single right answer to sole trader vs company. The best structure depends on risk, profit, growth plans and how much admin you are willing to carry. These four examples show how the decision usually plays out.

Scenario 1: The Freelance Designer

Priya earns about $65,000 a year designing logos and websites from home. She has no staff, low risk, and spends almost everything she earns. Sole trader makes sense. A company would add $2,000 or more in yearly costs to save little or no tax, and PSI rules would likely apply anyway.

Scenario 2: The Growing Builder

Tom runs a building business with four employees and signs contracts worth hundreds of thousands of dollars. One defect claim or a bad debt from a developer could wipe out his family home. A company is the stronger choice, paired with good insurance, a separate trust account for tax, and an accountant who checks his BAS and super lodgements every quarter.

Scenario 3: The Café Owner

Sam is signing a five-year lease and hiring casual staff. A company limits exposure on trade debts, although the landlord will probably still ask for a personal guarantee. The bigger risk here is staff compliance: award rates, super and correct classification. Getting those wrong is what has landed many hospitality operators in court.

Scenario 4: The Side Hustle

Jess sells handmade candles on weekends and earns $8,000 a year. She should stay a sole trader, keep clean records, and revisit the question if the hobby turns into a full-time business.

When to Switch From Sole Trader to Company

Many owners start as sole traders and move into a company later. Consider switching when several of these are true:

• Profit is consistently above roughly $120,000 to $150,000 and you want to keep some in the business.
• You are hiring staff or taking on contracts with real liability.
• A partner, co-founder or investor wants to come in.
• Large clients or tenders prefer dealing with a company.
• You plan to sell the business one day.

Switching means registering the company, transferring assets and contracts, and updating your ABN, GST and insurance details. Small business restructure rollover relief may let you move assets without an immediate capital gains tax bill, but the rules are technical. This is the point to pay a registered tax agent or lawyer, because a messy transfer can create the very tax problems you were trying to avoid.

Questions to Ask Before You Decide

1. If the business failed tomorrow, what personal assets could I lose?
2. Will I keep profit in the business or spend it all?
3. Is my income mostly from my own personal effort?
4. Am I prepared to keep company records and meet director duties every year?
5. Do I need to bring in other owners or investors within the next few years?

This article is general information, not legal or financial advice. Talk to a registered tax agent or business lawyer about your own situation before you register.

Conclusion: Making the Sole Trader vs Company Call

The sole trader vs company decision comes down to risk, profit and responsibility: a sole trader structure is cheap, simple and tax-friendly at modest incomes, but it puts every personal asset on the line, while a Pty Ltd company offers limited liability, a 25% base rate, easier growth and a cleaner exit in exchange for $636 to register, $342 a year in ASIC fees, more paperwork and legal duties that regulators enforce hard, as the phoenixing prosecutions, director penalty notices and sham contracting penalties above make clear, so start with the structure that matches your business today, keep tax and staff money separate from day one, revisit the choice as profit and risk grow, and get a registered tax agent to check your numbers before you commit.