Introduction
In the law of contract in England and Wales, the formation of a binding agreement requires a clear offer and a corresponding acceptance. The statement that "acceptance must be communicated" is the cornerstone of this principle. The general rule is that an acceptance has no legal effect until it is brought to the attention of the offeror. This essay will argue that while this rule provides essential certainty in contract formation, it is not an absolute principle. The courts have developed significant exceptions, most notably the postal rule, which demonstrate that the law prioritises commercial convenience and fairness in certain situations over a rigid requirement for communication. Therefore, the statement is an oversimplification of a more nuanced area of law.
The General Rule of Communication
The fundamental reason for requiring communication of acceptance is to ensure both parties are aware that a contract has been formed. It would be unjust to bind an offeror to an agreement they did not know existed. This principle was clearly articulated by Lord Denning in Entores Ltd v Miles Far East Corporation [1955]. He used the analogy of two people making a contract across a river; if the offeree shouts their acceptance but an aircraft flies overhead preventing the offeror from hearing, there is no contract until the acceptance is repeated and heard. This illustrates that the onus is on the offeree to ensure their message is received.
The law also prevents an offeror from imposing a contract on an unwilling offeree through silence. In Felthouse v Bindley (1862), an uncle wrote to his nephew offering to buy a horse, stating "If I hear no more about him, I consider the horse mine". The nephew did not reply, and the court held that his silence did not constitute acceptance. This confirms the rule that acceptance must be a positive act communicated to the offeror, protecting the offeree's freedom to reject an offer without having to take action.
The Postal Rule Exception
The most significant departure from the general rule is the 'postal rule', established in Adams v Lindsell (1818). This rule states that where post is a reasonable method of communication, acceptance is effective at the moment the letter is correctly posted, not when it is received by the offeror. This means a contract can be formed without the offeror being aware of it. The justification for this rule was based on commercial convenience at a time when postal communication was slow and unreliable; it provided the offeree with certainty that a contract had been formed, allowing them to proceed with performance.
However, the postal rule can create unfair outcomes for the offeror. In Household Fire Insurance Co v Grant (1879), a contract was formed when the acceptance letter was posted, even though it was lost in the post and never reached the offeror. This demonstrates the potential for the rule to bind an unsuspecting party. In recognition of this harshness, the courts have limited the rule's application. It only applies when it is reasonable to use the post, and it can be excluded by the offeror. For instance, in Holwell Securities Ltd v Hughes [1974], the offer required "notice in writing to the offeror", which the court interpreted as meaning actual communication was required, thereby displacing the postal rule.
Other Qualifications to the Rule
The nature of the offer can also waive the need for communication. In unilateral contracts, where one party makes a promise in return for an act, the performance of the act itself is deemed to be the acceptance. The famous case of Carlill v Carbolic Smoke Ball Co [1893] established that the company, by making a public offer of a reward, had waived the need for Mrs Carlill to communicate her acceptance before she started using the smoke ball as instructed. Requiring communication in such cases would be impractical and defeat the purpose of the offer.
With modern, instantaneous forms of communication like email, the courts have generally returned to the principle of actual receipt. In Brinkibon Ltd v Stahag Stahl mbH [1983], the House of Lords held that for instantaneous communications, acceptance occurs when and where the message is received by the offeror. This aligns with the reasoning in Entores and provides greater certainty. However, questions remain about when an email is "received" – for example, when it arrives in an inbox during office hours or only when it is read – showing that the law continues to adapt to new technologies.
Conclusion
In conclusion, the statement that "acceptance must be communicated" is correct as a general principle of contract law. It provides clarity and protects the offeror from being bound to a contract without their knowledge. However, this essay has demonstrated that the rule is not absolute. The postal rule stands as a major, though increasingly criticised, exception created for historical commercial reasons. Furthermore, the waiver of communication in unilateral contracts shows the law’s pragmatic approach, adapting the rules to fit the context of the agreement. The law on communication of acceptance is therefore a balance between the need for certainty for the offeror and the need for convenience and fairness for the offeree. The general rule is the starting point, but its exceptions are essential to its practical application.
References
- Adams v Lindsell (1818) 1 B & Ald 681
- Brinkibon Ltd v Stahag Stahl mbH [1983] 2 AC 34
- Carlill v Carbolic Smoke Ball Co [1893] 1 QB 256
- Entores Ltd v Miles Far East Corporation [1955] 2 QB 327
- Felthouse v Bindley (1862) 11 CB (NS) 869
- Holwell Securities Ltd v Hughes [1974] 1 WLR 155
- Household Fire Insurance Co v Grant (1879) 4 Ex D 216
- Thomas v BPE Solicitors [2010] EWHC 306 (Ch)
