There are five essential elements necessary for legally binding contract formation: •
Agreement between the parties. There cannot be a unilateral contract. •
Consideration (a bargain requirement: generally, the supply of money, property or services or a promise to undertake, or not undertake a particular act in exchange for something of value); •
Capacity to enter legal relations (e.g. of sound mind and legal age); •
Intention by the parties to enter into legal relations (private non-commercial agreements between family members may not indicate intention to enter a legally binding contract and therefore may not be enforceable); and •
Certainty (the contract has to be complete, certain, clear and binding). The absence of any of these elements will signify either that there is in law no agreement or that the agreement is not enforceable as a contract. In most jurisdictions contracts do not need to be represented in writing and oral contract are as enforceable as written contracts. However, there are a number of exceptions that have been created by statute follow from the
Statute of Frauds 1677 (UK) and were principally designed to reduce
fraud. Examples are marine insurance which is not enforceable unless it is documented in writing. Also consumer credit must be documented in written form with a copy provided to the consumer. Similar formalities are required for the sale of land. The courts however will intervene so that the
Statute of Frauds is not made an instrument of fraud.
Agreement The existence of an agreement between the parties is usually analysed through the rules of offer and acceptance. This may be expressed as a clear indication ("offer") by one party (the "offeror") of a willingness to be bound on certain terms. accompanied by a communication by the other party (the "offeree") to the offeror of an unqualified assent to that offer ("acceptance"). It is distinguished from an "
invitation to treat", which is a request to others to make offers to engage in negotiations with a contract in mind. Items displayed for sale are invitations to treat. An offer is also distinguished from "mere puff". or on the other hand be made to anyone who, before it is withdrawn, accepts the offer, or to the public at large. either by the offeror or a third person acting with the offeror's authority. In some circumstances, the difference between an offer and an invitation to treat can be hard to recognise. For example, in property auction cases the auctioneers language should generally be constructed to be inviting bids, as opposed to offering the house. According to the New South Wales Supreme Court case of
AGC (Advances) Ltd v McWhirter, withdrawing a properties reserve price during an auction does not obligate the sale. This is different to the British case,
Barry v Davies which found that if an auctioneer removes the reserve, they are bound to sell to a bona fide purchaser. An acceptance of the offer resulting in a binding contract must take place with knowledge of the offer and an intention to accept the offer. Although acceptance need not be express and may be implied from conduct, it must correspond with the offer; be unequivocal; and in general, be communicated to the offeror. Silence cannot be requested by the offeror to be, or used by the offeree as a method of communication for acceptance. A purported acceptance will also be ineffective if made at a time when the offer has lapsed by virtue of time; if it is made subject to a contingency and that contingency ceases to exist; if the offeror dies and the offeree has notice of this fact; by the revocation of the offeror or the rejection by the offeree. Furthermore, it is important to note that the postal rule is an exception to the general rule that acceptance of an offer takes place when communicated to the offeror. Under the rule, acceptance of an offer is effective as soon as it is posted, notwithstanding it may be lost in the delivery process and not received by the offerer. However, the postal acceptance rule does not extend to instantaneous telecommunication methods, such as telephone, facsimile, and, presumably, emails. This means that, where acceptance is communicated electronically, contract is formed when and where acceptance is received, rather than at the moment it is posted. Transactions via electronic communications are now governed by statute. However, the rules of offer and acceptance are merely "an aid to analysis", and may sometimes prove inconclusive or artificial. A contract can be made without an identifiable offer and acceptance, provided the parties have manifested their mutual assent. Consideration can be anything from money to a promise to undertake or not undertake a particular act, even a mere peppercorn could suffice. In Australian law, the question of sufficiency of consideration does not refer to 'adequacy' as it is not the role of the judge to determine and value whether something is adequate or valuable or not. "Consideration" in this context means that a promise is given in return for a promise received. The usage of the word derives from expressions such as: "I will give you ten pounds in consideration of the apples you are delivering to me." Generally past consideration is not sufficient consideration but a past service performed at the request of the promisor with an implication they will be paid for is sufficient consideration for a subsequent promise to pay for them. Illusory Consideration: An agreement may be held as void if a vital provision is deemed to be illusory. That is, that one part has a discretion either to the performance or to the content of that provision. Note, if one party has some latitude or discretion as to the manner in which certain agreed provisions will be effected, but that discretion is limited, then the provisions are not illusory. drunks, and the mentally impaired may not possess adequate capacity however the ordinary reasonable person is presumed by default to have contractual capacity. Where there is a lack of capacity to contract, an agreement may be rendered void. while parties to social or domestic agreements are presumed not to intend legal consequences. Such presumptions determine who bears the
onus of proof. Preliminary agreements become apparent when parties enter into an agreement, however that is yet to have been formalised in a more intricate agreement which will be signed by both parties. Where one party later refuses to continue with the agreement, the question thus arises whether the first agreement was intended to be enforceable. In
Masters v Cameron the High Court held three possibilities to be available; • The parties are immediately bound to the bargain, but they intend to restate the deal in a more formalized contract that will not have a different effect; or, • Parties intended to be immediately bound, however their performance of terms is suspended until their intention is formalised through conclusion of legal documentation; or, • Parties do not intend to be immediately bound, instead they intend to be bound only when a properly drawn contract has been signed. There is a prima facie presumption that this third category is evident where the phrase 'subject to contract' has been utilised. • The parties intend to immediately bound by the terms agreed upon and expect to create a further contract as a replacement for the initial contract which will contain additional terms (if agreed upon). Although the fourth category may seem similar to the first
Masters v Cameron category, the distinction is the formal contract may differ in effect from the initial agreement. The topic of certainty encompasses three related and often overlapping problems: • The agreement may be
incomplete because the parties have failed to reach agreement on all of the essential elements or have decided that an essential matter should be determined by future agreement; • The agreement may be
uncertain because the terms are too vague or ambiguous for a meaning to be attributed by a court; • A particular promise may be
illusory because the contract effectively gives the promisor an unfettered discretion as to whether to perform the promise. The case law reflect the tension between, on the one hand, the desire to hold parties to their bargains in accordance with the principle
pacta sunt servanda and, on the other hand, the courts' reluctance to make a bargain for the parties. Although there have been differences in Australian judicial opinion as to the role of the court in giving effect to a contract, in general the courts give primacy to the need to uphold agreements, particularly executed agreements and commercial arrangements. == Terms ==