Rules of the Law of Contract (OCR A-Level Law): Revision Notes

Rules of the Law of Contract

Contract law forms a crucial part of private law in England and Wales, dealing with legally binding agreements between parties. Understanding the fundamental rules governing contracts is essential for comprehending how agreements are formed, maintained, and enforced through the legal system.

What is contract law?

Contract law is an area of private law that governs agreements between parties. These agreements can range from everyday transactions, such as purchasing goods in a shop, to complex multi-million-pound business arrangements.

The fundamental purpose of contract law is to ensure fairness in how agreements are created and, when necessary, how they are enforced by the courts. Over centuries, the rules have evolved through common law (judge-made law), statutory law (Acts of Parliament), and parliamentary intervention, adapting to meet the changing needs of society.

Key characteristics of contract law

Contract law operates as a system of strict liability. This means that once parties enter into a contract, they are expected to honour their commitments. The principle can be summarised as "agreements are meant to be kept". If one party breaches the contract, they will be held liable for damages regardless of whether they intended to cause harm or were at fault. There is no consideration of fault or mitigation – a breach is a breach, whatever the circumstances.

When disputes arise and parties wish to resolve their conflict through the courts, the burden of proof falls on the claimant (the party bringing the claim). They must prove their case on the balance of probabilities – meaning they must show it is more likely than not that the defendant has breached the contract. A breach of contract occurs when a party fails to carry out any of their obligations under the agreement, or carries them out improperly.

Formation of a contract

A contract is defined as an agreement between two parties which is binding in law and therefore enforceable in court. When parties create a valid contract, both acquire legal rights that can be enforced or compensated through the courts, provided strict rules have been followed.

The evolution from "gentleman's agreements"

Historically, agreements were often made "in good faith" through what was known as a gentleman's agreement. Under this approach, parties would be bound by honour and a handshake, with any subsequent problems resolved through integrity rather than litigation. However, modern contract law has moved beyond this informal approach to create a more structured framework.

Addressing inequality of bargaining power

Over the past fifty years, contract law has developed significantly to address inequality of bargaining power. This is particularly important in relationships between businesses and private individuals, where businesses may have greater resources and influence. Sometimes businesses put pressure on individuals to comply with unfair terms or ignore breaches. The law now seeks to maintain a balance between parties and ensure fair treatment.

Essential elements of a contract

In its purest form, a valid contract consists of three key elements:

1. An agreement – comprising a valid offer followed by a valid, unconditional acceptance of that offer (acceptance means unconditional agreement to all the terms of an offer)

2. Intention to create legal relations – distinguishing between agreements meant to be legally binding and those that are not

3. Consideration – something of value exchanged between the parties

Distinguishing legally enforceable agreements

Not every agreement we make in daily life is intended to be legally enforceable. For example, if you arrange to meet a friend at the cinema and they fail to arrive, you cannot sue them for breach of contract. This is because neither party intended to create a legally binding agreement. While you might feel upset or angry, the law recognises that filling the courts with cases about "broken promises" between friends would be impractical and inappropriate.

To determine whether an agreement is legally enforceable, contract law distinguishes between two categories:

Social and domestic arrangements – these carry a presumption of no intention to create legal relations (for example, agreements between family members or friends)

Commercial or business agreements – these carry a presumption of intention to create legal relations

Both categories operate under a rebuttable presumption – an assumption in law that can be overturned if contrary evidence is presented.

Contract terms

Once a contract is formed, its terms become the binding elements that parties must perform. Terms are the individual statements made by the contracting parties which form the contents or subject matter of the contract.

Understanding what terms are

Consider this example: Jamil tells his friend Chris that he will sell his electric scooter for £500. The basic terms of this contract would be:

• The item being sold is an electric scooter
• The price is £500

Once these terms are agreed upon, they become the binding part of the contract. Both parties must perform according to these terms for the contract to be fulfilled. If Jamil delivers a non-electric push scooter instead, or if he demands £600 after Chris has accepted, there would be a prima facie breach of contract.

Types of terms

Contract terms can be categorised in two ways.

By their source:

• Express terms – these come directly from the parties themselves through their negotiations and agreements
• Implied terms – these are presumed to form part of the agreement even if not explicitly stated
• Imputed terms – these are inserted by operation of law, such as through consumer protection legislation

By their importance:

• Conditions – these are fundamental terms that go to the root of the contract. A breach of a condition gives the injured party the right to terminate the contract and claim damages
• Warranties – these are lesser terms, generally descriptive in nature. A breach of warranty entitles the injured party to damages but not to terminate the contract

Vitiating factors

Even when a contract appears to have all the necessary elements for valid formation – offer, acceptance, consideration, and intention – there may still be hidden defects that affect its validity. These defects are called vitiating factors (from the word "vitiating", meaning invalidating). Vitiating factors can invalidate a contract even when, at the time of formation, both parties appear satisfied with the agreement.

How vitiating factors operate

Vitiating factors create two types of invalid contracts:

Void contracts – these were never valid from the start. The contract is treated as if it never existed, and neither party has any obligations under it

Voidable contracts – these are valid until one party chooses to avoid them. The contract remains in force unless and until the affected party exercises their right to set it aside

The two most common vitiating factors are misrepresentation (where one party makes a false statement that induces the other to enter the contract) and economic duress (where improper pressure is applied to force agreement).

Discharge of a contract

Discharge refers to the ending of a contract. Understanding how contracts come to an end is crucial for determining when parties' obligations cease.

Methods of discharge

Discharge by performance – this is the most common and desirable way for a contract to end. It occurs when both parties complete all their obligations under the contract, fulfilling their respective promises.

Discharge by frustration – this occurs when the contract cannot be performed due to events outside either party's control. When a frustrating event happens, the contract ends automatically at that point. However, the doctrine of frustration has limits and cannot be used in all circumstances where performance becomes difficult or expensive.

Discharge by breach – when one party fails to perform one or more of their contractual terms, a breach occurs. In such cases, the primary obligations (what the parties originally agreed to do) are replaced by secondary obligations (such as paying damages to the injured party).

Remedies for breach of contract

When a breach of contract occurs, the law provides remedies to compensate the injured party. These remedies fall into two distinct categories, each with different characteristics and availability.

Common law remedies

Damages are the most frequently awarded remedy in contract law. They involve a payment of money to compensate the injured party for their loss. If the claimant proves their case, damages are granted as of right – the court must award them.

There are three basic types of damages:

Unliquidated damages – the amount is not pre-agreed and must be determined by the court based on the loss suffered

Liquidated damages – the parties agree in advance (within the contract itself) what amount will be paid if a particular breach occurs

Quantum meruit – meaning "what it is worth", this is a reasonable sum of money paid for services in contracts where no exact sum was stipulated

Equitable remedies

While damages are effective in many cases, sometimes monetary compensation alone cannot adequately address the injured party's loss. For this reason, equitable remedies have developed. Unlike common law damages, these are awarded at the court's discretion – even if the case is proven, the judge may choose not to grant them if circumstances do not warrant it.

The four main types of equitable remedy are:

Specific performance – a court order requiring the defendant to carry out their obligations under the contract

Rescission – the contract is set aside and both parties are returned to their pre-contractual position

Injunction – a court order preventing a party from doing something (prohibitory injunction) or requiring them to do something (mandatory injunction)

Rectification of a document – the written contract is corrected to reflect what the parties actually agreed

Choosing the appropriate remedy

When considering remedies, it is important to understand that not all remedies are available in every situation. Common law damages are available as of right, but equitable remedies depend on the specific circumstances of the case and the judge's discretion. Factors such as the nature of the contract, the type of breach, and the conduct of the parties will influence which remedy is most appropriate.