Company vs Trust vs Sole Trader
What each structure actually changes — risk, tax flexibility, admin load and where growth gets harder.
Three structures, three different bargains
Choosing a business structure is really choosing a bundle of trade-offs: how exposed you are personally, how flexibly profits can be dealt with, how much administration you carry, and how easy it is to bring in partners, lenders or buyers later. Here's what each bundle looks like in practice.
Sole trader
You and the business are legally the same person. Registration is quick, running costs are minimal, and your tax return is just your personal return with a business schedule.
- Upside: cheapest to set up and run; losses in early years may offset your other income (subject to ATO rules); total control with no formalities.
- Downside: unlimited personal liability — business debts and legal claims reach your personal assets. All profit is taxed in your hands at personal marginal rates, with no ability to spread or retain it. Selling or bringing in a partner means restructuring.
It suits testing an idea, low-risk service work, and side businesses. It suits far less well once you hire staff, sign leases or carry real liability.
Company
A company is a separate legal person. It owns the assets, signs the contracts and carries the debts; you're a shareholder and director.
- Upside: limited liability (with important exceptions — directors keep personal duties and can be liable for things like unpaid employee entitlements and insolvent trading). Profits are taxed at the company rate — the ATO publishes the current rates — and can be retained to fund growth rather than distributed. Shares make it straightforward to add co-owners, issue equity to staff or sell the business.
- Downside: ASIC registration and annual fees, a separate tax return, and director obligations that are genuinely enforced. Taking money out has rules — loans to shareholders are tightly regulated, so "borrowing from the company" casually creates real problems.
Discretionary (family) trust
A trust isn't a legal entity so much as a relationship: a trustee (often a company) holds assets and runs the business for the benefit of beneficiaries, and can decide each year how to distribute the profit among them.
- Upside: flexibility to distribute income across family beneficiaries each year, which can be tax-effective depending on everyone's circumstances; a layer of asset protection when structured well; potential access to certain capital gains concessions (eligibility rules apply — confirm with the ATO or your adviser).
- Downside: the most complex and costly of the three to establish and administer. Trusts generally can't retain profits without tax consequences, distributions to some beneficiaries are penalised, losses are trapped inside the trust, and banks and investors often find trusts awkward to deal with. The trust deed itself matters enormously and is easy to get wrong.
Comparing them where it counts
- Personal risk: sole trader is fully exposed; company and trust (with a corporate trustee) contain most business risk, though never all of it.
- Tax flexibility: trust is most flexible year to year; company allows retention at a flat rate; sole trader has none.
- Admin burden: sole trader lightest, company moderate, trust heaviest.
- Growth and exit: company is the natural vehicle for outside investment and sale; the others usually restructure into one eventually.
Many established SMEs end up with combinations — for example a trading company owned by a family trust. That's also where back-office complexity multiplies: multiple entities mean multiple sets of books, BAS lodgements and inter-entity loans to keep clean, which is a coordination job in itself — the kind of drag we describe in the coordination tax.
Before you decide
Structure choices interact with tax law, family law and succession in ways that depend entirely on your situation, and restructuring later can trigger duty and tax costs. Treat this page as a map of the terrain, then get specific advice from your accountant or lawyer before committing. If the structure conversation is really a symptom of everything running through you personally, it may be worth reading about founder dependency too.