Commercial life runs on communication. A price appears on a website. A supplier sends a quotation. A customer asks for a best price. A project manager says “that should be fine” in a site meeting. A buyer appoints three suppliers to a panel. Each of these can be harmless, or each can create a commitment that one party did not intend and the other relied on.
Most disputes about whether a deal was done do not arise from bad faith. They arise because one party thought it was exploring while the other thought it had been promised something. The gap is usually avoidable. It comes from not being clear about what state a conversation is in: information, invitation, negotiation or commitment.
This article explains, in general terms, the ideas Australian contract law uses to decide when a promise becomes binding, and turns them into practical habits: knowing which mode a communication is in, being clear about whether an arrangement is meant to be binding, making sure a changed deal includes something in return, and understanding what a framework or panel agreement does and does not commit to. It is general information, not legal advice. Whether a particular arrangement is binding depends on its facts and the law, so take advice from a lawyer on anything significant.
From information to commitment
It helps to think of commercial communication as moving through stages:
- Information: describing facts, products or indicative prices.
- Invitation: inviting the other party to make an offer or start a discussion.
- Negotiation: proposing terms, with further agreement expected.
- Offer: a clear promise the sender is prepared to be bound by if the other party accepts.
- Acceptance: agreement to the offer, creating a contract if the other elements are present.
The law generally treats many everyday communications as invitations rather than offers. Goods on a shelf, most advertisements, auctions and requests for tenders are usually treated as invitations to make an offer. A statement of a price in response to a question may be information rather than an offer to sell at that price. But labels do not decide the matter. An unusually specific and serious promise in an advertisement, or a tender process that promises to follow particular steps, can be treated differently. What matters is the substance and context.
Separately from contract law, the Australian Consumer Law prohibits misleading conduct and practices such as advertising goods at a price when the business does not intend to supply reasonable quantities at that price. So “it was only an invitation” is not a complete answer to how prices are advertised.
A simple test before sending
Before sending a significant commercial message, ask four questions:
- What do we intend this to do: inform, invite, negotiate or commit?
- Does the wording match that intention?
- Does the sender have authority to make this kind of commitment?
- What would happen if the other party immediately replied “accepted”?
The last question is a useful practical check. If an immediate acceptance would surprise the sender, the message is not clear enough.
Everyday phrases that sound like commitments
In project delivery and sales, ordinary phrases can carry far more weight than intended:
- “We can proceed on that basis.”
- “Consider it approved.”
- “Start Monday.”
- “We accept your revised price.”
- “That won’t be a problem.”
The answer is not to make every conversation stiff and formal. It is to make sure the people who talk to customers and suppliers understand the difference between operational discussion and commercial commitment, and know who has authority to commit.
Was the arrangement meant to be binding?
Not every agreement is a contract. The law asks whether the parties intended to create legal relations, judged objectively from what was said and written, the subject matter, what was at stake and how the parties behaved. In Australia, a 2002 High Court decision moved away from relying on simple presumptions, such as treating family arrangements as automatically non-binding and commercial ones as automatically binding, towards looking at all the circumstances.
For a business, the practical lesson is that relationship labels do not settle anything. A loan between family members to fund the business, recorded in the accounts and repaid on terms, may look very different from a casual family promise. A document between two companies that expressly says it is not binding may not be binding, even though both are businesses.
Five things tend to indicate seriousness:
- Subject matter: money, property, employment, project work or investment.
- Language: words such as “agree”, “shall”, “binding”, “non-binding” or “subject to contract”.
- Formality: whether it is written, signed, minuted or recorded.
- Conduct: whether the parties have acted as though obligations exist.
- Consequences: whether failure would cause significant loss.
The safest habit is to label significant preliminary documents clearly: binding, non-binding, or binding only once stated conditions are met. And for each, be clear about what each party may do in the meantime.
A changed deal needs something in return
For a simple contract to be enforceable, each party’s promise is generally supported by something of value from the other: money, a promise, an act or giving something up. Lawyers call this consideration. It does not need to be a fair price, but it does need to be real, and it generally needs to be given in exchange for the promise rather than before it.
This matters most when deals change under pressure:
- Paying more for the same work. If a supplier is behind schedule and the customer promises extra money for doing what the supplier was already obliged to do, the position can be uncertain. Courts have sometimes recognised a practical benefit to the customer, but it is risky to rely on that.
- Promises after the event. If work has already been done and a payment is promised afterwards, that later promise may not be enforceable in the usual way, because nothing was given in exchange for it.
- Accepting less. A creditor agreeing to accept less than the full debt may or may not be bound, depending on what else accompanies the concession, such as earlier payment.
The practical habit is simple: never approve a changed deal without stating what changes on both sides. If the customer pays more, what does it get: new scope, an earlier date, extra support, a changed responsibility? If the supplier concedes something, what does it receive? Writing this down makes the change clearer, more enforceable and easier to judge commercially. Some arrangements are made by deed, a formal document that can be binding without consideration, but deeds have their own execution requirements, so take advice before relying on one.
A panel or framework is not a purchase commitment
Buyers often appoint suppliers to a panel, standing offer or master agreement. These usually set the terms for future work without committing to any particular volume. Many expressly say there is no minimum quantity and no exclusivity. A supplier can win the right to receive future work without winning any work at all.
This creates two different expectations:
- The buyer may believe it has secured good terms and kept the freedom to use other suppliers.
- The supplier may invest in staff, stock or equipment expecting a pipeline that was never promised.
For suppliers, distinguish forecast volume from committed volume, and be careful about investing on the strength of a forecast. For buyers, be clear about what is and is not committed, and recognise that suppliers will price the uncertainty or limit how much capacity they hold. Flexibility has value, but someone pays for unused capacity. Options such as minimum commitments, reservation fees or tiered pricing can share that cost more deliberately. The standing offers and schedule-of-rates agreements article covers how these arrangements work in practice.
Authority matters
Many unintended commitments come from people who sound authoritative but have no authority to commit. A project manager agrees to a variation, a salesperson promises a delivery date, or a senior person tells a supplier a contract will “definitely” be renewed while the business is still deciding. Whether such statements are legally binding is a separate question, but they create exposure and damage relationships either way.
Make authority clear inside the business: who can make offers, accept variations, sign contracts and commit to volumes, and up to what value. And make sure external communication matches the internal decision status.
A worked example
This is an illustration. A signage manufacturer with 18 staff is appointed to a national retailer’s supplier panel under a master agreement. The agreement states there is no minimum volume and no exclusivity, and that each job will be ordered by a separate purchase order. In the tender, the retailer estimated that about 120 store refits a year might be required across the panel.
The signage firm’s sales manager treats the appointment as a win worth about 120 jobs a year, hires two additional staff at a combined cost of about $140,000 a year and buys $45,000 of material stock. In the first six months, the firm receives 14 purchase orders, well below the 60 it had planned for. The master agreement made no promise of volume, and the estimate in the tender was only an estimate.
During one rollout, the retailer’s project manager asks for completion two weeks earlier than the purchase order requires. The firm’s project manager replies by email: “No problem, consider it done.” The firm then works weekends to meet the new date and afterwards asks for an acceleration fee. The retailer declines, pointing to the email. The firm’s position is weak: it agreed to the change without asking for anything in return, and the request for payment came after the work was done.
The owner introduces three changes:
- Panel appointments are recorded as options, not revenue. Investment decisions are based on purchase orders received and realistic conversion of forecasts, reviewed quarterly.
- Variations are priced before they are agreed. Any request to change scope, timing or responsibility is answered with what will change on both sides, in writing, before work starts.
- Authority is clarified. Project managers can discuss changes but only the operations manager can agree variations above a set value, and email templates distinguish “we can look at this” from “we agree”.
The two new staff are redeployed to other customers while panel volume builds, and the next acceleration request is priced and accepted before the weekend work begins.
How this applies to a small Australian business
Small businesses often negotiate quickly, informally and through many channels, which makes clarity about commitments especially valuable. Practical steps:
- Know which mode a message is in: information, invitation, negotiation or offer.
- Use the “accepted” test before sending significant messages.
- Label preliminary documents as binding, non-binding or conditional.
- State what changes on both sides before agreeing any variation or concession.
- Ask for something in return before doing extra work, not afterwards.
- Treat panel appointments as options until orders arrive.
- Clarify who can commit the business, and to what value.
- Check advertised prices and promotions against ACCC guidance.
- Get legal advice on significant agreements, variations, guarantees and anything you are unsure about.
The matching the contract to the work article covers choosing a contract structure that fits the relationship.
Signals worth watching
- Disputes that begin with “I didn’t mean it that way”.
- Variations agreed in meetings or messages with no written record of what changed.
- Requests for payment after extra work has already been done.
- Suppliers or staff treating forecasts as promises.
- People without authority using approval language.
- Significant arrangements with family members or related businesses that are not documented.
Common mistakes
- Treating every price or quote as an offer, or none of them.
- Using commitment language casually.
- Agreeing changes without stating what each side gets.
- Investing on the strength of a panel appointment.
- Relying on trust instead of clear documents for significant arrangements.
- Leaving authority to commit unclear.
Frequently asked questions
Is a quotation an offer? It depends on its wording and the circumstances. Many quotations are intended as offers capable of acceptance within a stated period; others are indicative. State clearly on your quotations whether they are offers, how long they are valid and what terms apply.
Does “subject to contract” mean nothing is binding? Often it signals that the parties do not intend to be bound until a formal contract is signed, but the effect depends on the circumstances and the parties’ conduct. If you are relying on it, take advice.
Can an email create a binding contract? It can, if the elements of a contract are present. Treat important emails with the same care as letters.
What should a variation record include? The original position, the change, what each party gives and receives, any change to price or time, who approved it and the date.
We are on a panel and have received little work. What can we do? Talk to the buyer about expected demand and how work is allocated, keep your investment in line with actual orders and consider whether the panel remains worth the cost of being ready.
Questions to ask
- Can our staff tell the difference between information, negotiation and an offer?
- Who in our business can make binding offers and agree variations?
- Are our preliminary documents clearly labelled?
- When we agree a change, can we state what we receive in return?
- Are we investing on the basis of forecasts rather than commitments?
- Which significant relationships rely on trust rather than clear documents?
Bringing it together
A commitment can be created sooner than people expect, or be smaller than they assume. Be clear about which mode each communication is in, test significant messages by imagining an immediate “accepted”, label preliminary documents, state what changes on both sides of any revised deal and treat panel appointments as options rather than revenue. Clear authority and clear wording do not make business slower. They prevent the disputes that do.
Source: KEVOS notes, drawing on teaching material on contract formation, intention to create legal relations, consideration and framework agreements. Examples and figures in this article are illustrations. This article is general information, not legal advice.
