Nine everyday situations where commercial law applies to your small business

Running a small business means making legal decisions every week without stopping to think of them as legal. Quoting a customer, publishing an advertisement, hiring a casual, emailing a client list, signing a lease, invoicing a customer on credit. Most of the time nothing comes of it. When something does go wrong, the outcome usually turns on what was in place before the problem arose: the terms on the invoice, the policy on the website, the registration on the register, the clauses in the lease.

That collection of rules is what commercial law means in practice. It is the body of statutes and contracts that governs how a business deals with its customers, staff, suppliers, premises, data and brand. The main pieces are the Australian Consumer Law in Schedule 2 of the Competition and Consumer Act 2010 (Cth) (the ACL), the Privacy Act 1988 (Cth), the Fair Work Act 2009 (Cth), the Personal Property Securities Act 2009 (Cth) and the Trade Marks Act 1995 (Cth), sitting on top of the general law of contract that applies to every agreement you sign. Each regime is switched on by a particular kind of dealing, and each has its own threshold that decides whether it applies to you at all. The nine situations below show where the switches are.

Nine everyday situations, worked through

Each situation follows the same shape: the facts, the rule that applies, and where it leaves the business.

The ad that promises next-day delivery

A retailer runs a promotion promising next-day delivery nationwide. A regional customer's order arrives five days late, and the customer wants compensation. Section 18 of the Australian Consumer Law prohibits misleading or deceptive conduct in trade or commerce, and an advertisement is conduct of exactly that kind. The test is whether the claim would mislead a reasonable consumer, not whether you intended to deceive, so an honest mistake is still a contravention. The customer can pursue a remedy, the regulator can act, and the business is left rewriting its marketing and its delivery promises at the same time. The lesson is to make every claim you publish one you can actually deliver.

The refund request you would rather refuse

A customer's laptop dies three months after purchase and they ask for their money back. Under the consumer guarantees in Part 3-2 of the ACL, goods must be of acceptable quality, fit for the purpose they are sold for and match their description, and your terms cannot exclude those guarantees. Whether the customer gets a refund depends on the size of the failure. For a major failure, meaning a reasonable consumer would not have bought the goods knowing about the problem, or the goods are substantially unfit and cannot be easily fixed, the customer can choose a refund or a replacement. For a minor failure, you generally get one chance to repair or replace first. A clear refund policy that matches the law saves the argument before it starts.

The one-sided terms nobody reads

A subscription business's standard form contract lets it raise prices without notice and renews automatically for another year unless the customer opts out. Since late 2023 an unfair term in a consumer or small business contract is not merely void, it is unlawful, and proposing one can attract a penalty. The regime reaches most small businesses because it applies where one party has fewer than 100 employees or turnover under $10 million. Automatic renewal without a reminder and unilateral price variation are exactly the kind of clauses regulators target. Drafting terms that reflect how you actually deal with customers, and reviewing each clause for imbalance, is the compliance step that keeps the regime out of your business.

Hiring your first employee

Your first hire is a sales coordinator, and you want to keep the arrangement simple. The moment someone becomes an employee, the Fair Work Act 2009 (Cth) sets minimum terms that no contract can override. The National Employment Standards cover maximum weekly hours, leave entitlements and notice of termination, and most roles also sit under a modern award that fixes the minimum pay rate for that type of work. A written employment contract still matters for everything the legislation leaves to you: duties, probation, confidentiality, IP ownership and what happens when the role ends. What a contract cannot do is trade away a statutory minimum, so a pay rate below the award or leave below the standards is a compliance problem however the document is worded.

The website that collects emails

An online store collects names and email addresses for its marketing list. The Privacy Act 1988 (Cth) and the Australian Privacy Principles apply to businesses with annual turnover above $3 million. Below that line, a business is generally a small business operator and exempt from most of the Act, unless one of the exceptions applies, such as providing health services, being a credit reporting body, or trading in personal information. The practical point is that the line can move: a business that crosses $3 million in turnover, or starts handling health information, becomes subject to the full set of obligations overnight. A privacy policy that says what you collect, why, and how you store it, plus secure handling in practice, is the baseline either way.

The rival with a name too close to yours

A competitor launches with a name confusingly similar to the brand you have spent years building. Your position depends almost entirely on whether your trade mark is registered. Under s 20 of the Trade Marks Act 1995 (Cth), a registered owner holds the exclusive right to use the mark for the goods and services covered by the registration, and can sue for infringement without first proving reputation in the wider market. Without registration you are left with passing off or misleading conduct claims, which require you to prove your reputation and the likelihood of confusion, a slower and more expensive exercise. Registration before the dispute exists is the cheaper path by a wide margin.

Selling on credit and hoping for the best

You supply stock to a retailer on 30-day terms and the retailer goes into administration without paying. If your agreement gives you a security interest in the goods, the Personal Property Securities Act 2009 (Cth) says that interest must be registered on the Personal Property Securities Register (the PPSR) to be protected. Section 44 shows the consequence of skipping registration: a buyer or lessee who searches the register by serial number before acquiring the goods, and finds nothing, takes the goods free of your interest. Registration is what perfects your interest and puts you ahead of later secured parties and, in many cases, ahead of other creditors. The registration needs to exist before someone else registers or buys, so the practical rule is to register at the time of supply, not after the account goes bad.

The lease with surprise outgoings

A shop lease looks affordable until the first quarterly statement adds cleaning, marketing, and air-conditioning charges the tenant never budgeted for. In New South Wales, the Retail Leases Act 1994 gives retail tenants statutory protections that ordinary commercial tenants do not get. The lessor must give a disclosure statement at least seven days before the lease is entered into, and the tenant is only liable for outgoings that the lease specifies and the disclosure statement reveals. Depreciation and the lessor's borrowing costs cannot be recovered. For a non-retail commercial lease, none of this applies by default: every recoverable cost is a matter of negotiation, which is why a review of the lease before signing is the point at which money is saved.

The handshake deal with a supplier

A verbal agreement with a supplier is generally enforceable in Australia, and that is precisely the problem. When delivery dates, quality standards, price adjustments and liability were never written down, each side remembers the deal differently, and the dispute ends up costing more than the arrangement was worth. A written supply agreement fixes the scope, timelines, price, warranties and liability caps up front. When something goes wrong, the conversation is then about the terms of the contract rather than about who said what in a phone call eighteen months earlier.

What the nine situations have in common

The pattern across all nine is that commercial law attaches to the dealing, not to the size or sophistication of the business. The moment you sell to a consumer, the ACL applies. The moment you hire, Fair Work applies. The moment you collect personal information, privacy law is engaged. The moment you supply goods on credit, the PPSR is relevant. What decides your exposure is whether the document or registration that the regime assumes you have was in place before the moment arrived:

• Name the dealing: before any new arrangement, ask which regime it triggers. A sale to a consumer, a hire, a data collection and a supply on credit each bring a different statute with them, and the thresholds differ.
• Know where the thresholds sit: the definitions of consumer, small business operator under the Privacy Act (turnover up to $3 million) and small business contract under the unfair contract terms rules (under 100 employees or turnover under $10 million) mark where protections start and stop.
• Contracts cannot waive statutes: terms that exclude consumer guarantees or undercut National Employment Standards are ineffective, so a well-drafted contract is a supplement to compliance, not a substitute for it.
• Register early, register once: trade marks and PPSR interests are cheap compared with the cost of enforcing unregistered rights after the dispute starts.
• Respect the timelines: a disclosure statement must reach a retail tenant before the lease is signed, and a PPSR registration that happens after the goods are supplied is often too late to help.

When to bring in a commercial lawyer

Most of the situations above are cheap to get right and expensive to get wrong, and that gap is where a commercial lawyer earns their fee. A practitioner would start by mapping your actual operations against the regimes they trigger, then review and redraft the contracts and policies that carry the risk, and identify any registrations or filings that are outstanding. The judgement calls are the ones an article cannot make for you: whether a particular advertisement crosses the misleading line, whether a clause is unfair in context, whether the small business exemptions apply to your structure, and how the outgoings and termination clauses in a lease allocate risk over the life of the deal. An assessment of that kind is usually a conversation, not a litigation, and it is far cheaper before a dispute crystallises than after.

The test that settles most disputes

The question that resolves most of these situations is a simple one: what is being exchanged, and who is the other party? A sale to a consumer engages the ACL and its guarantees. A hire engages the Fair Work minimums. A supply on credit engages the PPSR. A lease of retail premises engages the state protections. Once you can name the dealing, you know the statute, the threshold and the document that the law expects to exist.

Run that test before each new arrangement starts: name the dealing, check the threshold, and put the contract, policy or registration in place first. Businesses that do find that commercial law is mostly invisible. Businesses that find out about it after the dispute begins usually pay for the lesson in the outcome.