In Australia, a company is a legal person in its own right. The law treats it as an entity separate from the people who own it and run it, a feature lawyers call separate legal personality. That single idea does more work than any other part of company law: it decides whose name goes on the lease, who owes the debt when the business struggles, and who can be sued when something goes wrong.
This article explains what makes a company a legal entity, the moment it becomes one, and what that means day to day for a small business owner. We cover:
- what a legal entity is, and how a company fits the definition
- the moment a company comes into existence
- what a company can do in its own name
- how limited liability works, and where the protection stops
- the misconceptions that cause real trouble
- when a lawyer can help you get the structure right
What a legal entity is
A legal entity is a person or organisation that the law recognises as having its own rights and obligations. It can own property, enter contracts, owe debts, and sue or be sued in its own name. Human beings are legal entities, and so are companies. Section 124 of the Corporations Act 2001 (Cth) gives a company the legal capacity and powers of an individual, both in Australia and overseas.
Other structures do not work the same way. A sole trader and their business are one and the same, so every business debt sits behind the trader's personal assets. A partnership is not a separate legal entity in Australia, and each partner is personally liable for the debts of the partnership. A trust is not an entity at all: the trustee owns the assets and is personally liable, which is why trustee indemnities matter in practice. A company is different. It is a distinct person in the eyes of the law, even when one person owns every share.
The principle is not new. It traces back to the English decision in Salomon v Salomon & Co Ltd [1897] AC 22, and the High Court of Australia has confirmed it as a foundation of company law. In Industrial Equity Ltd v Blackburn (1977) 137 CLR 567, the Court described the recognition of each company's separate personality as a natural consequence of the doctrine that derives from Salomon. That recognition is not watered down by ownership: a company and its sole controller remain distinct persons under Australian law.
The moment it happens: registration with ASIC
A company does not exist until the Australian Securities and Investments Commission (ASIC) registers it. Section 119 of the Corporations Act 2001 (Cth) provides that a company comes into existence as a body corporate at the beginning of the day on which it is registered. Registration is the event that creates the separate legal person; before that day, the company has no legal existence at all.
To register, you lodge an application with ASIC setting out the company's proposed name, type, registered office, directors, shareholders and share structure. If ASIC approves the application, it issues an Australian Company Number (ACN) and a certificate of registration, and the company's name is the name on that certificate. The certificate records the type of company, its ACN, the state or territory in which it is registered and the date of registration.
There is no minimum size for this to work. Section 114 requires only one member, so a proprietary company can validly have a single director who is also the sole shareholder. The company is no less a separate legal entity for being a one-person operation, and it is no more one for having dozens of shareholders.
What the company can do in its own name
Once registered, the company acts in its own name rather than the name of its owners. Concretely:
- Contracts: the company signs the lease, the supply agreement and the employment contracts, and it is the party bound by them.
- Property: assets such as equipment, bank balances, goodwill and intellectual property belong to the company, not to its directors or shareholders.
- Debts: the company owes the money, and creditors look to the company for payment.
- Litigation: legal proceedings are brought by or against the company in its own name.
- Continuity: the company remains in existence until it is deregistered, so directors and shareholders can come and go without ending the entity.
This bundle of rights is the practical content of separate legal personality. It is also why businesses that plan to employ staff, sign leases or take outside investment usually operate through a company: every one of those steps is taken by an entity that can survive the people involved. When a founder leaves or dies, the company keeps trading; the shares pass to someone else, but the contracts and the obligations stay with the company.
The limited liability shield, and where it stops
The most important consequence of separate legal personality is limited liability. Because the company is a separate person, its debts are its own. If the company is sued or becomes insolvent, creditors generally cannot reach the personal assets of its shareholders. In a company limited by shares, a member need not contribute more than the amount, if any, unpaid on their shares: s 516 of the Corporations Act 2001 (Cth).
The shield is real, but it is not absolute. The main places it stops are worth knowing before you rely on it:
- Personal guarantees: If a director or shareholder guarantees a company loan or lease, the lender or landlord can pursue them personally when the company defaults. Guarantees are the most common way the protection is lifted, and lenders routinely ask for them from the directors of small companies.
- Insolvent trading: Directors have a statutory duty to prevent the company from incurring debts while it is insolvent: s 588G of the Corporations Act 2001 (Cth). A director who breaches that duty can be personally liable for the debts the company incurred, and the duty applies whether or not the director knew the company was in trouble, if a reasonable person in their position would have suspected it.
- Breaches of directors' duties: Directors owe duties to the company itself. Using company money for personal purposes, or acting where their interests conflict with the company's, can expose them to personal liability and disqualification.
- Abuse of the corporate form: Where a company is used as a sham or to defraud creditors, courts will not let separate personality protect the abuse, and regulators actively pursue illegal phoenix activity.
How it works in practice
Priya roasts coffee at home and sells at weekend markets as a sole trader. She wants to lease a shop in a laneway and hire two baristas, so she registers Laneway Roasters Pty Ltd with ASIC. On the day of registration, a new legal person exists. The lease is signed by the company. The espresso machine is bought by the company and belongs to the company. The staff are employed by the company.
A customer slips on a wet floor and sues. The claim is against Laneway Roasters Pty Ltd, not against Priya. If the business fails and the company is wound up, Priya loses her shares, but her house, car and savings are not on the line for the company's debts. That is separate legal personality doing its job.
Now add the two details that change the story. Priya signed a personal guarantee on the shop lease because the landlord asked for one, so the landlord can pursue her personally if the company cannot pay the rent. And if Priya keeps ordering coffee beans and drawing a salary while the company is clearly unable to pay its debts, she risks personal liability for insolvent trading. The concept protects her within its boundaries, and only within them.
Common misconceptions
A few misconceptions cause most of the trouble in practice:
- "Registering a company makes my personal assets untouchable": Not quite. The protection operates for shareholders, but directors who give personal guarantees, trade while insolvent or breach their duties put their personal assets at risk. The shield protects against the company's ordinary trading debts, not against every consequence of running it badly.
- "The company is just me under a different name": The company owns its assets, and those assets are not yours. Paying personal bills from the company account is not taking your own money; it can be a breach of directors' duties, and it is one of the fastest ways for the separation to collapse in practice.
- "A one-person company is not a real company": A proprietary company needs only one member (s 114) and one director ordinarily resident in Australia (s 201A). The separate entity exists in full. The High Court's recognition of separate personality applies equally to companies with a single controller.
- "A partnership or trust gives the same protection": Partnerships have no separate legal personality in Australia, so partners are personally liable for partnership debts. A trust is not an entity at all, and the trustee is personally liable. Only a company gives you the separation between the business and the people behind it.
When a lawyer helps
Getting the structure right is where legal advice usually pays for itself. A commercial lawyer can:
- compare a company with a trust or partnership for your specific situation, including the tax and asset protection consequences of each
- draft a constitution tailored to how you want decisions made, or advise on relying on the default replaceable rules in the Corporations Act 2001 (Cth) (ss 135 and 140)
- prepare a shareholders agreement so co-founders and investors agree up front on voting, share transfers and exits
- review personal guarantees and leases before you sign them, so you know exactly where your personal assets are exposed
- advise early when the company is under financial pressure, before insolvent trading exposure builds
A practitioner's job in this area is mostly risk mapping: identifying which entity bears each obligation, which person is on the hook, and what documents need to exist before problems arise. Doing that at setup is far cheaper than fixing it after a dispute or an insolvency, when the choices have already been made.
The question to answer about your own business
When a claim is made or a debt is owed, the practical question is always the same: who is the debtor, and who else can be pursued? The answer turns on which entity signed the contract, whether anyone guaranteed the obligation, and whether the directors complied with their duties.
That is the moment separate legal personality stops being a theory. If you can answer the question for your own business before anything goes wrong, you understand the concept. If you cannot, the cheapest protection available is a conversation with a commercial lawyer before you sign the next contract, lease or guarantee.