Law · Year 12 · Contract Law · Summer Term

Formation of a Contract: Consideration and Intention

Investigate the crucial elements of consideration and the intention to create legal relations. You will explore what constitutes valid consideration and how courts determine whether an agreement was intended to be legally binding.

TL;DR:Discover the crucial ingredients that transform a simple promise into a legally binding contract: the 'price' of the promise and the genuine intention to be bound by it.

• National Curriculum Attainment Targets
• A-Level Law (AQA/OCR/Edexcel): Contract Law - Formation of Contract

About This Topic

This topic delves into two of the three essential elements required for the formation of a legally binding contract in English law: consideration and the intention to create legal relations. It builds directly upon students' prior knowledge of offer and acceptance. The focus is on understanding the 'bargain' element of a contract, where each party must provide something of value. Key principles explored include the rule that consideration must be sufficient but need not be adequate, the invalidity of past consideration, and the complexities surrounding promises to perform existing duties. Landmark cases such as Stilk v Myrick, Williams v Roffey Bros, and the rule in Pinnel's Case, along with the equitable doctrine of promissory estoppel, form the core of this section.

Furthermore, the topic examines the crucial, yet often overlooked, element of intention. Students will learn how the courts apply rebuttable presumptions to determine whether the parties intended their agreement to be enforceable by law. This involves a critical distinction between social and domestic agreements, where the presumption is against legal intention (e.g., Balfour v Balfour), and commercial agreements, where the presumption is strongly in favour of it (e.g., Edwards v Skyways). Understanding how these presumptions can be rebutted with clear evidence is vital for applying the law to problem scenarios, a key skill for A-Level Law assessments.

Key Questions

1. Explain the concept of 'sufficiency' versus 'adequacy' of consideration.
2. Analyse the legal presumptions regarding the intention to create legal relations in social and commercial agreements.
3. Evaluate the rule in Pinnel's Case and its development through subsequent case law on part-payment of a debt.

Learning Objectives

• Define the legal meaning of 'consideration' and explain its function in forming a contract.
• Analyse the rules governing the sufficiency of consideration, including past consideration and the performance of existing duties.
• Explain the legal presumptions concerning the intention to create legal relations in social and commercial contexts.
• Apply the principles of consideration, intention, and promissory estoppel to analyse legal problem scenarios.
• Evaluate the development and application of the rule in Pinnel's Case and its relationship with promissory estoppel.

Key Vocabulary

Consideration	The price for which the promise of the other is bought; something of value in the eyes of the law given in exchange for a promise.
Intention to Create Legal Relations	The necessary intent by the parties to an agreement for it to be legally binding and enforceable in a court of law.
Promissory Estoppel	An equitable doctrine which can prevent a person from going back on a promise which is not supported by consideration, typically used as a defence.
Sufficiency	The legal principle that consideration must have some real, tangible value in the eyes of the law, as opposed to 'adequacy', which refers to its market value.
Rebuttable Presumption	A starting assumption made by a court that is taken to be true unless a party comes forward with evidence to prove otherwise.

Watch Out for These Misconceptions

Common Misconception

Consideration must be fair or of equal value to what is being received.

What to Teach Instead

The law requires consideration to be 'sufficient' (something of value in the eyes of the law), but it does not need to be 'adequate' (of equal market value). The courts will not protect someone from a bad bargain, as shown in Chappell & Co v Nestlé Co Ltd where chocolate wrappers were deemed sufficient consideration.

Common Misconception

Any promise made in a business setting is automatically a binding contract.

What to Teach Instead

While there is a very strong presumption of an intention to create legal relations in commercial agreements, this can be disproven (rebutted). If the parties use exceptionally clear wording to state the agreement is 'binding in honour only', the courts will respect this and find no contract, as in Rose and Frank Co v JR Crompton & Bros Ltd.

Common Misconception

Promissory estoppel can be used to start a lawsuit and claim damages.

What to Teach Instead

Promissory estoppel is an equitable doctrine that is generally used as a defence, not a cause of action. It is often described as a 'shield, not a sword', meaning it can stop a party from going back on their promise, but it cannot be used to create new rights or sue for payment.

Active Learning Ideas

Case Study Analysis

Case Law Carousel

Students rotate through stations, each with a summary of a key case (e.g., Chappell v Nestlé, Merritt v Merritt, Stilk v Myrick). They must identify the legal principle regarding consideration or intention and explain its application in the case.

45 min·Small Groups

Case Study Analysis

Problem Question Deconstruction

Present a classic problem question involving part-payment of a debt. Students work in pairs to create a detailed plan for an answer, identifying the relevant legal issues (Pinnel's Case, promissory estoppel) and the key cases they would apply.

30 min·Pairs

Case Study Analysis

Rebutting the Presumption Debate

Divide the class into two teams. One side argues that a given social agreement (e.g., a promise between siblings) should be legally binding, while the other argues against it, focusing on finding evidence to rebut the standard presumption.

25 min·Whole Class

Real-World Connections

• Employment contracts: An employee's work is consideration for the employer's promise to pay a salary, a classic commercial agreement with a strong presumption of legal intention.
• Family loans: Agreements between family members often raise questions about intention. Courts must examine the evidence to decide if it was a gift or a legally enforceable loan, as in Jones v Padavatton.
• Retail promotions: A 'buy one, get one free' offer involves consideration from the customer (buying the first item) and demonstrates the business's intention to be bound by the offer.
• Settling a bill with a builder: If you dispute a £5,000 bill and offer £4,000 in 'full and final settlement', the rule in Pinnel's Case becomes relevant if the builder later sues for the remaining £1,000.
• Making a pledge to a charity: This is generally not a contract as the donor receives no consideration from the charity for their promise, making it an unenforceable promise of a gift.

Assessment Ideas

Quick Check

Use mini problem scenarios on whiteboards where students must identify whether consideration is valid (e.g., past, existing duty) and justify their answer with a case name.

Peer Assessment

A timed essay question requiring students to critically evaluate the statement: 'The doctrine of consideration is now so riddled with exceptions that it has become meaningless'.

Quick Check

A full A-Level style problem question where students advise a fictional client on whether a series of agreements are contractually binding, requiring application of both consideration and intention rules.

Frequently Asked Questions

Why is performing an existing public duty not considered good consideration?

This is because the promisor is already legally obliged to perform that duty, so they are not providing anything new of value in exchange for the promise. Allowing this would risk public officials extorting money for doing their jobs. However, if they go above and beyond their public duty, as in Glasbrook Bros v Glamorgan County Council, that can be valid consideration.

What is the real difference between consideration and intention to create legal relations?

Consideration is the 'bargain' element of the contract; it is the tangible thing of value (an act, a promise, or forbearance) that each party gives. Intention is about the parties' mindset; did they subjectively intend for their agreement to have legal consequences and be enforceable in court? Both are separate and essential requirements.

How can the rule in Pinnel's Case be avoided in practice?

The common law rule that part-payment of a debt is not good consideration for a promise to forgive the whole debt can be avoided. This can be done by paying a smaller sum before the due date, paying with a different item (the 'horse, hawk, or robe' principle), or paying at a different location at the creditor's request. Furthermore, the equitable doctrine of promissory estoppel may prevent the creditor from claiming the remainder.