Essential terms of a contract and the clauses every Australian business agreement needs

You have just received a draft contract from a client, supplier or partner, and you are about to sign it. The instinct is to check the numbers and skim the rest, but the clauses in the middle decide what happens when the job runs late, the invoice goes unpaid or the relationship sours.

A contract does one thing: it fixes, in advance, who does what, what each side gets, what happens when something goes wrong and how the deal ends. It replaces the fog of a handshake arrangement with agreed rules, and while the law will imply some terms into any contract, the express clauses you agree on do the heavy lifting. This guide walks through the clauses every Australian business contract needs, what each one should say, and the traps that make them unenforceable.

The essential clauses, clause by clause

Who the contract actually binds

The first clause identifies the parties, and it is the one people get wrong most often. A contract binds the legal entity named in it, not the trading name on the letterhead. If you contract with Smith's Plumbing but the entity behind it is Smith Plumbing Pty Ltd, you may find yourself chasing a business that does not exist.

Company: use the full registered name and ACN, not the trading name, and check ASIC records for who the directors are.
Trust: a trust is not a legal entity; the contract should name the trustee, for example ABC Pty Ltd as trustee for the ABC Unit Trust.
Partnership or sole trader: name the partners or the individual, and confirm who is authorised to sign.

The execution block matters just as much. Under s 127 of the Corporations Act 2001 (Cth), a company executes a document when it is signed by two directors, or a director and the company secretary, or, for a proprietary company with a sole director who is also the sole secretary, that director. A signature page that does not match this leaves you with a document whose enforceability is in doubt.

What "done" looks like

Scope is the clause that describes the goods or services being supplied, and it deserves more drafting time than any other. The contract should define the deliverables, the milestones, the quality standard and, critically, how the other side signals acceptance. Phrases like "reasonable support" and "deliver promptly" are invitations to argue.

Acceptance criteria: spell out what must happen for the work to be treated as complete, and how long the other side has to raise defects.
Milestones: tie stage payments to agreed deliverables so progress is measurable.
Rejection process: what happens when work is rejected, who fixes it and at whose cost.

Vague scope does not usually make a contract void, but it makes disputes expensive. A court will try to give effect to the deal by looking at industry practice and prior dealing, which is a slow and unpredictable way to find out what you agreed to.

How the price is calculated and when you get paid

This clause fixes the pricing model, whether fixed fee, hourly rate, unit price or retainer, plus how and when invoices are issued, the payment deadline and the accepted methods. Interest on overdue invoices is whatever the contract says it is, so a clause that sets a rate is your protection against slow payers. That rate must not be a disguised punishment. Under the penalty doctrine, a fee that is extravagant and unconscionable when compared with the genuine interest in being paid on time can be struck down, as the long-running ANZ late-payment fee litigation shows (Paciocco v Australia and New Zealand Banking Group Ltd [2015] FCAFC 50).

Late payment interest: set a rate and state when it starts accruing, and keep it defensible as a genuine cost of late payment.
GST: state whether prices are inclusive or exclusive of GST.
Security: for credit sales, consider a director's guarantee or a registered security interest rather than relying on payment terms alone.

When the work starts, runs and renews

A term clause sets the commencement date, the duration and whether the arrangement is a fixed project or an ongoing relationship. If the contract renews automatically, state the notice period for opting out and put a reminder in your calendar. An evergreen clause that locks a party in for another year is a common complaint.

Fixed term: an end date, and what happens at expiry: renewal, or conversion to an ongoing arrangement.
Automatic renewal: requires notice to stop, and the party who drafted it usually benefits from silence.
Rolling contracts: how either side brings the arrangement to an end.

Watch the unfair contract terms regime here. Under s 23 of the Australian Consumer Law (the ACL), set out in Sch 2 to the Competition and Consumer Act 2010 (Cth), a term of a standard form consumer or small business contract is void if it is unfair, and regulators can now seek penalties for proposing such terms. An auto-renewal clause that traps a small business with no reasonable exit is exactly the kind of term that gets challenged.

How either side gets out

Termination is the clause people hope never to use, which is why it is so often skipped. The common law is strict: a breach only justifies termination if it is a breach of a condition, or a sufficiently serious breach of an intermediate term that it deprives the innocent party of substantially the whole benefit of the contract (Koompahtoo Local Aboriginal Land Council v Sanpine Pty Ltd [2007] HCA 61). An express clause can give you clearer rights, so it is worth having.

Termination for breach: state which breaches are serious enough to end the deal, and give a right to remedy within a set period.
Termination for convenience: lets either side end the deal on notice. If you are the supplier, make sure you are paid for work done to that point.
Insolvency: a right to terminate if the other party goes into liquidation or administration, which protects you from trading with a company that cannot pay.
Suspension: a right to stop work for non-payment without ending the contract entirely.

An exit clause should also deal with what happens afterwards: handover of materials, return of property and confidential information, final invoicing, and which obligations survive termination. Without these, the end of the relationship is where disputes start.

Who carries the goods between dispatch and payment

If you supply goods, the contract should say when delivery is complete, when risk passes to the buyer and when title passes. These are different things: risk can pass on delivery while title is retained until payment.

Retention of title is a clause worth understanding. It lets a supplier keep ownership of goods until they are paid for, but under the Personal Property Securities Act 2009 (Cth) that arrangement is a security interest, and if it is unperfected it is vulnerable. If the buyer goes into liquidation or administration, an unperfected security interest vests in the buyer, meaning the "retained" goods become part of the pool the liquidator distributes. Registration on the PPSR is what makes the protection real, and it is a small step that decides whether you get paid or join the unsecured creditors.

Delivery terms: who arranges and pays for freight and insurance.
Risk: who bears loss or damage while goods are in transit.
Title and security: pair any retention of title clause with PPSR registration so it survives the buyer's insolvency.

How much each side can be liable for

A limitation of liability clause caps the exposure if something goes wrong. The common shape is a monetary cap, often the amount paid under the contract in the previous 12 months, plus an exclusion of indirect and consequential loss. It is also the clause most often drafted badly, either capped so low that no one would insure against it or written to exclude everything.

The ACL constrains what you can exclude. Under s 64 of the ACL, terms that purport to exclude, restrict or modify the consumer guarantees are void, and that is non-negotiable for consumer transactions. There is one important drafting door: under s 64A, where goods or services are not of a kind ordinarily acquired for personal, domestic or household use, liability for failure to comply with the performance guarantees can be limited to repairing or replacing the goods or resupplying the services. If you deal mostly with business customers, s 64A gives you a compliant way to cap remedy exposure. If you sell to consumers, you cannot.

Cap: a dollar figure, usually tied to fees paid, with carve-outs for fraud, wilful misconduct, IP infringement and breach of confidentiality.
Indirect and consequential loss: define what counts, because courts interpret these words narrowly.
Insurance: cap your liability at a level your insurer will actually cover.

Who owns the work and who can use it

If the engagement creates intellectual property, the contract must say who owns it. Ownership is not automatic: work created by a contractor belongs to the contractor unless assigned, and a client who pays for a website or a logo does not automatically own the copyright in it.

Pre-existing IP: each side keeps what it brought to the deal.
New IP: assign ownership to the client, or keep it and grant a licence, with the scope of that licence stated: purpose, exclusivity, territory and duration.
Third-party IP: who is responsible if the work infringes someone else's rights, usually covered by an indemnity from the supplier.

An indemnity clause allocates specific risks to one party, such as losses from IP infringement or damage caused by negligence. Draft them narrowly and link them to risks the party can actually control, because a broad indemnity is a blank cheque.

Secrets and personal information

A confidentiality clause protects commercial information, pricing, client data and trade secrets. It should define what is confidential, list what is excluded such as information already in the public domain, state how long the obligations last, and require the return or destruction of materials on request. It is the clause that lets you share a customer list with a prospective buyer or a developer without giving it away.

Privacy is a separate layer. The Privacy Act 1988 (Cth) and its Australian Privacy Principles apply to APP entities, which generally includes businesses with an annual turnover above $3 million. Under s 6D, a business whose turnover for the previous financial year was $3 million or less is a small business and is exempt, with important exceptions: the exemption does not apply to health service providers, credit reporting bodies and businesses that handle tax file number information, among others. Even if you are exempt, major customers and platforms increasingly require suppliers to maintain privacy practices and a privacy policy as a condition of engagement.

What happens when a dispute breaks out

A dispute resolution clause sets out the ladder: good faith negotiation, then mediation, then court or arbitration. It should also state the governing law and the jurisdiction where disputes will be heard, usually your home state. Without it, a dispute over a contract performed across state lines raises the preliminary question of which state's courts hear the matter and which law applies, which is time and money spent before the actual fight starts.

Negotiation: a short period for the parties to resolve the issue directly, with senior people involved.
Mediation: a neutral third party, non-binding, often a requirement before litigation.
Forum: exclusive jurisdiction in a chosen state, plus the governing law stated.

Changing the deal and passing it on

Contracts change in practice, and the variation clause decides whether those changes count. A clause requiring variations to be agreed in writing, with the price impact stated, is the standard defence against scope creep. An assignment clause states whether either side can transfer the contract or subcontract the work, which matters when a client sells its business or a supplier wants to outsource the job. Also include an entire agreement clause, which stops either party relying on earlier emails and promises, and a severability clause, which keeps the rest of the contract alive if one term is void, for example an unfair term struck out under the ACL.

Optional clauses that earn their place

These clauses are not essential in every deal, but each becomes worth including when a specific risk is present.

Survival clause: keeps confidentiality, IP, indemnities and liability limits operating after termination. Include it whenever the relationship ends with obligations still running.
Restraint of trade: a non-solicitation clause stopping a departing contractor or employee from poaching your customers or staff. Keep it narrow and time limited, because courts will not enforce restraints that go beyond protecting genuine goodwill.
Liquidated damages: a pre-agreed amount payable for delay, useful in construction-style deals. It must be a genuine pre-estimate of loss, not a penalty.
Director's guarantee: worth including when you extend credit to a small proprietary company, because the company may have few assets. It must be signed by the director personally.
Force majeure: suspends obligations during events outside either side's control, such as natural disasters or supply disruptions. Define the events and what happens if they persist.

How an Artificer Legal lawyer would review your contract

This is where a lawyer earns the fee. When we review a contract for a client, we start with the parties and the execution block, because a contract against the wrong entity is a contract you cannot enforce. We then check the scope and acceptance terms, because every other clause is measured against them. Next we test the limitation of liability against the ACL: whether the cap is commercially sensible, whether the exclusion of indirect loss survives, and whether the drafting uses the s 64A door for business supplies. We look at termination from your side of the table, making sure a termination for convenience clause does not let the other side walk away mid-project without paying for work done. We confirm IP ownership matches the commercial deal, and we check whether any security interest, such as retention of title, has been registered on the PPSR. Finally we reorder the negotiation: entity and scope first, then price and payment, then liability, termination and IP, so the commercial deal is locked before the legal risk clauses are traded.

Why "done" needs a definition

If one drafting choice separates a contract that works from one that does not, it is the definition of what done looks like. The parties, the price and the deadline are usually written down. What is often missing is the point at which the work is treated as complete and accepted. That single gap drives most disputes: the supplier believes the job is finished, the client believes it is not, payment stops, and the termination and liability clauses are dragged into a fight that the scope clause should have prevented. Draft the acceptance criteria before you negotiate anything else, and the rest of the contract has something to hold onto.

Everything else follows from there. Name the right parties, define the deliverables and the sign-off, fix the price and payment terms, decide how the deal ends, cap liability within what the ACL allows, allocate IP and confidential information, and agree where disputes will be heard. A contract that does those things in plain English will protect you in the ordinary running of the business and, when something goes wrong, give you a clear path to resolution. When you are not sure a clause does what you need, have a lawyer check it before you sign. A fixed-fee review is cheaper than a dispute.