Front
Back
An online ad says: “First 50 customers who click ‘Buy’ get a laptop for 1 SEK—guaranteed.” A customer clicks ‘Buy’ and pays, but the seller refuses. Is the ad likely an offer or invitation to treat?
Likely an offer if it’s clear, definite, and promises to be bound upon performance; performance/acceptance completes the contract. If it’s mere sales puff or lacks definiteness, it’s invitation to treat. Rule: Clear advertisement with definite promise = offer; performance = acceptance.
Parties email a draft deal and never sign. They nevertheless begin performance: goods delivered, invoices paid for 2 months. When a dispute arises, one party says ‘no signature, no contract.’ Outcome?
A contract can be formed without a signature if the parties’ words and conduct show agreement on essential terms. If they perform as if bound (deliver, pay, start work) despite an unsigned draft, the court can infer acceptance by conduct. So the deal is enforceable on the agreed essentials (and any incorporated terms).
A buyer posts an acceptance letter as the offer contemplated post. Before it arrives, the seller emails: “I revoke.” The buyer’s letter is lost. Is there a contract, and when (if at all) was it formed?
Under the postal rule, acceptance is effective when properly posted, but revocation is only effective when received. So if the offeree posted a valid acceptance before receiving the revocation, a contract forms at posting. The offeror is bound despite the later-arriving withdrawal.
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
Seller quotes on its terms (including a price-escalation clause). Buyer sends a purchase order on its own terms (no escalation). Seller signs and returns buyer’s acknowledgement slip and ships. Costs rise; seller claims extra. Which terms govern?
In a battle of forms, a purported acceptance on different terms is a counter‑offer, and the contract is on the terms last accepted by conduct (‘last shot’). If one party sends its terms last and the other proceeds without objection (e.g., takes delivery/pays), that conduct usually accepts those terms. So the operative terms are the last set put forward and accepted by performance.
Two firms agree on ‘shipment on the Aurora from Shanghai’. Unknown to both, two ships named Aurora sail a month apart. Each party reasonably had a different ship in mind. Enforceable contract?
No. If the parties are not ad idem on a fundamental term and each understanding is reasonable, there is no true agreement and the contract is void. Rule: A valid contract requires agreement on the same thing on the same sense.
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
Fraudster buys goods using a stolen identity. The contract is a written finance/hire-purchase agreement naming the real person. Fraudster resells to an innocent third party before the fraud is discovered. Can the finance company recover the goods?
Yes, if identity was fundamental in a written contract with a named person: the contract can be void for mistake, so title never passes to the fraudster or third party. Rule: Where a contract is made in writing with a specific named person, a mistake as to identity can render the contract void , preventing title from passing. This contrasts with face-to-face contracts (e.g.
Parties orally agree: “We will negotiate in good faith and not talk to anyone else until we reach agreement.” No time limit is stated. One party walks away and sells to a third party. Is the ‘good faith negotiation’ promise enforceable?
Generally no: bare agreements to negotiate in good faith are unenforceable for uncertainty. A lock-out can be enforceable only if sufficiently certain (e.g., fixed period). Rule: Agreements to negotiate (even in good faith) are not enforceable under English law.
Parties discuss a service contract. Client asks Consultant to start work immediately ‘so we don’t lose time’, but negotiations later collapse and no contract is concluded. Consultant has delivered valuable work. What claim/value basis is most likely available?
Consultant may recover a reasonable sum on a restitutionary basis (quantum meruit) for work done at the other party’s request in anticipation of a contract that never materialised. When work is done at another party’s request in anticipation of a contract that never materialises, the performing party may recover a reasonable sum (quantum meruit), even though no contract existed. Therefore, apply the rule to the facts and conclude whether a binding contract/remedy exists.
Parties email a draft deal and never sign. They nevertheless begin performance: goods delivered, invoices paid for 2 months. When a dispute arises, one party says ‘no signature, no contract.’ Outcome?
A contract can be formed without a signature if the parties’ words and conduct show agreement on essential terms. If they perform as if bound (deliver, pay, start work) despite an unsigned draft, the court can infer acceptance by conduct. So the deal is enforceable on the agreed essentials (and any incorporated terms).
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
An agent signs a contract in their own name; the third party has no idea there is a principal. Later, the principal tries to ‘ratify’ and enforce the contract against the third party. Can the principal ratify in these circumstances?
Ratification lets a principal adopt an unauthorized act, treating it as authorized from the outset, but it must be timely and cannot prejudice third‑party rights. So if circumstances have changed or rights have intervened, ratification may be barred. If validly ratified, the principal becomes bound as if the agent had authority.
A contract between A and B states: ‘B shall pay £5,000 to C on completion.’ C is named. B refuses to pay. Can C sue B directly, and when might this be excluded?
Exclusion/limitation clauses are construed strictly and (in many contexts) must pass a reasonableness/unfairness test. So if the clause is wide, unexpected, or heavily one‑sided, a court may interpret it narrowly or strike it down under the statute. The party relying on the clause bears the burden of showing it is effective and reasonable where required.
An agent signs a contract in their own name; the third party has no idea there is a principal. Later, the principal tries to ‘ratify’ and enforce the contract against the third party. Can the principal ratify in these circumstances?
Ratification lets a principal adopt an unauthorized act, treating it as authorized from the outset, but it must be timely and cannot prejudice third‑party rights. So if circumstances have changed or rights have intervened, ratification may be barred. If validly ratified, the principal becomes bound as if the agent had authority.
A collector agrees to sell a rare coin worth £10,000 for £10 because they urgently need cash. Later they regret it and claim lack of consideration. Does ‘too cheap’ mean no consideration?
Consideration requires something of value in the eyes of the law and must move from the promisee, but it need not be adequate. So even a small benefit/detriment can support the promise as long as it is real and not illusory. Without consideration (and absent a deed/estoppel), the promise is not enforceable.
A company asks a consultant to secure a key introduction. Consultant does so. After the deal closes, the company promises a £50k bonus for that introduction, then refuses. Is the act ‘past consideration’ or can it support the promise?
Past consideration is generally not good consideration, but an earlier act can count if it was done at the promisor’s request with an understanding of payment. So if the service was requested and both contemplated remuneration, a later promise can be enforceable. Otherwise the promise is gratuitous and not binding.
A company asks a consultant to secure a key introduction. Consultant does so. After the deal closes, the company promises a £50k bonus for that introduction, then refuses. Is the act ‘past consideration’ or can it support the promise?
Past consideration is generally not good consideration, but an earlier act can count if it was done at the promisor’s request with an understanding of payment. So if the service was requested and both contemplated remuneration, a later promise can be enforceable. Otherwise the promise is gratuitous and not binding.
A parent already has a statutory duty to maintain a child. Another party promises to pay £200/month if the parent keeps the child ‘well cared for and happy’. Later they stop paying, arguing no consideration. Is there consideration?
Part payment of an undisputed debt is not good consideration for a promise to waive the balance, unless an exception applies (e.g., different time/place/method or third‑party payment). So paying less than the amount due (even early) usually does not discharge the rest if the creditor did not receive fresh consideration. The creditor can still claim the remaining balance (subject to any true promissory estoppel on the facts).
A contractor agrees to pay a subcontractor extra to finish on time because delay would trigger a penalty clause and replacement would be costly. Subcontractor is already bound to do the work. Contractor later refuses the extra. Is there consideration for the variation?
Past consideration is generally not good consideration, but an earlier act can count if it was done at the promisor’s request with an understanding of payment. So if the service was requested and both contemplated remuneration, a later promise can be enforceable. Otherwise the promise is gratuitous and not binding.
A written contract contains a ‘No Oral Modification’ clause requiring signed written variations. Parties later agree orally to reschedule payments and act on it. One party later insists the oral variation is invalid because of the NOM clause. What is the likely outcome under the document?
Under the Supreme Court approach, NOM clauses are generally enforceable, so oral variations are usually ineffective unless requirements are met. Rule: Where a party promises extra payment to secure performance of an existing contractual duty, that promise is enforceable if: 1. The promisor obtains a practical benefit , and 2.