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Formation of a Contract: ACCA LW Guide

Understand the core elements of contract formation for the ACCA LW exam. Learn about offer, acceptance, consideration, and intention with clear examples.

8 min readACCA Study Guide

Formation of a Contract: ACCA LW Guide

A contract is a legally binding agreement between two or more parties. For the ACCA LW exam, you must be able to identify if a valid contract has been formed by analysing the presence of four key elements: agreement (offer and acceptance), consideration, intention to create legal relations, and capacity.

Why this actually matters

When you're studying after a long day at work, you need to know what to focus on. Understanding contract formation isn't about memorising definitions, it's a core skill that underpins many other LW topics and prevents you from losing easy marks by misidentifying a fundamental legal principle.

Structured breakdown

To determine if a valid contract exists, you must systematically check for these four elements. An examiner expects you to work through them logically.

  • Agreement (Offer and Acceptance): Agreement is the first step. It consists of a clear, unequivocal offer from one party (the offeror) and a corresponding, unqualified acceptance from the other party (the offeree). An offer must be distinguished from an 'invitation to treat' (ITT), which is merely an invitation for others to make offers. For example, goods in a shop window are an ITT, not an offer.
  • Consideration: This is the price paid for the promise. Each party must provide something of value to the other. Consideration must be 'sufficient' but need not be 'adequate'. This means it must have some legal value, but the courts won't interfere if you've made a bad bargain. Past consideration is generally not valid consideration.
  • Intention to Create Legal Relations: The parties must have intended their agreement to be legally binding. There is a rebuttable presumption that commercial or business agreements are intended to be legally binding. Conversely, for social or domestic agreements (e.g., between family members), the presumption is that there is no intention to create legal relations.
  • Capacity: The parties must be legally capable of entering into a contract. This means they must not be minors (with some exceptions for 'necessaries'), mentally incapacitated, or intoxicated to the extent that they cannot understand the nature of the agreement.

Worked example

Here is a typical scenario you might see in your exam. We will break it down step-by-step to show the expected layout and thinking.

Scenario: Ahmed places an advert in his local newspaper: "For sale: ACCA Law textbook, excellent condition. £20. First come, first served. Contact 0123456789." Priya sees the advert, calls the number, and says, "I accept your offer to sell the textbook for £20." Ahmed tells her he has already sold it to Daniel who offered him £25.

Required: Advise Priya whether a valid contract was formed between her and Ahmed.

Workings:

Step 1: Identify the legal issue. The core issue is whether the advert placed by Ahmed constitutes a legal offer or merely an invitation to treat (ITT).

Step 2: State the relevant legal rule. The general rule, established in Partridge v Crittenden, is that adverts in newspapers are invitations to treat, not offers. An exception exists for unilateral offers (e.g., a reward for a lost dog), as seen in Carlill v Carbolic Smoke Ball Co, but this advert does not fit that pattern as it is not a promise in return for an act, but a notice for a bilateral transaction.

Step 3: Apply the rule to the scenario.

  • Ahmed's advert is an invitation for potential buyers to make offers to him. It is not a definite promise to sell to anyone who contacts him; it is an invitation to negotiate.
  • Priya's phone call, where she says, "I accept your offer...", is legally an offer from Priya to Ahmed to buy the textbook for £20.
  • At this point, Ahmed is free to either accept or reject Priya's offer.

Step 4: Conclude. No contract was formed between Ahmed and Priya. Ahmed's advert was an invitation to treat. Priya made an offer, which Ahmed did not accept. Therefore, Ahmed is not in breach of contract.

Marking Logic:

  • 1 mark for correctly identifying the advert as an Invitation to Treat.
  • 1 mark for citing a relevant case, such as Partridge v Crittenden.
  • 1 mark for correctly identifying Priya's response as an offer.
  • 1 mark for the final, correct conclusion that no contract was formed.

If you're working full-time

You don't have time to read every case ever decided. Focus your limited energy on the landmark cases for each element of formation, like Carlill v Carbolic Smoke Ball Co and Partridge v Crittenden. For a 1-hour study session this week, create a one-page summary chart with the four elements of a contract as headings. Under each, list the key rule and one case example. This is an efficient way to build a strong foundation without getting lost in detail.

Common mistakes

  • Confusing an invitation to treat with a unilateral offer.
  • Forgetting that consideration must move from the promisee but not necessarily to the promisor.
  • Incorrectly applying the presumptions for intention to create legal relations (e.g., assuming a business agreement is not binding).
  • Stating that consideration must be "adequate" - the rule is it must be "sufficient".
  • Failing to distinguish between a counter-offer (which destroys the original offer) and a request for information (which does not).
  • Believing that past consideration is valid consideration. It is not.
  • Overlooking the "postal rule" for acceptance and its specific conditions.

How examiners think

Examiners are not trying to trick you with obscure law. They are testing your ability to apply fundamental principles to a practical scenario. A good answer is not a long essay on the history of contract law. It is a structured, logical application of the rules.

What scores marks:

  • Structure: Use the IRAC (Issue, Rule, Application, Conclusion) method, as shown in the worked example. It shows you can think like a lawyer.
  • Precision: Naming the key elements (offer, acceptance, consideration, intention) and relevant cases.
  • Application: Explicitly linking the legal rules to the facts of the scenario. Don't just state the law; show how it resolves the problem.

What doesn't score marks:

  • Vague statements like "there was probably an agreement".
  • Rote learning definitions without applying them.
  • Discussing irrelevant areas of law.
  • Writing a long introduction before getting to the point.

FAQ

Calm summary

This week, your goal is not to master all of contract law. It is to create a solid, one-page reference sheet for contract formation. Focus on the four core elements and the key case for each. Use the worked example in this article as a template for how to structure your answers in the exam. This single page will give you a reliable tool to tackle problem questions with clarity and confidence, even when you are tired.

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Frequently Asked Questions

What is the difference between an offer and an invitation to treat?

An offer is a definite promise to be bound by specific terms, while an invitation to treat (ITT) is an invitation to others to make offers, like goods displayed in a shop.

How much detail on case law do I really need for the LW exam?

You do not need to know hundreds of cases; focus on the main one or two landmark cases for each key principle, such as *Carlill v Carbolic Smoke Ball Co* for unilateral offers.

Is a verbal agreement as valid as a written one?

Yes, for most types of contracts, a verbal agreement is legally binding, provided the four elements of formation can be proven. However, some contracts, like those for the sale of land, must be in writing.

What if I can't remember the exact case name in the exam?

If you forget the name, describing the facts and the legal principle from the case is often enough to still get the mark. The principle is more important than the name.

How do I know I'm ready to move on from this topic?

You are ready when you can consistently apply the four-part test (offer/acceptance, consideration, intention, capacity) to a simple scenario question and arrive at the correct conclusion, as in the worked example.

What happens if a contract is made with a minor?

Contracts with minors are generally not binding on the minor, except for contracts for 'necessaries' (like food or clothing) or beneficial contracts of service (like apprenticeships).

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