What Is Consideration in Contracts?

Consideration is one of the core requirements for forming a legally binding contract in England and Wales. It forms the “exchange element” of a bargain, ensuring that each party provides something of value in return for what they receive. Without consideration, a promise is generally not enforceable in contract law, even if it is clearly expressed.

The doctrine distinguishes enforceable agreements from gratuitous promises and plays a central role in commercial disputes, contract variations, and claims for breach of contract in the County Court and High Court.

Definition of Consideration

Consideration is traditionally defined as:

“Some right, interest, profit or benefit accruing to one party, or some forbearance, detriment, loss or responsibility given, suffered or undertaken by the other.”
(Currie v Misa (1875))

In practical terms, consideration means:

• A benefit received by one party, or
• A detriment suffered by the other party,
  as part of a mutual exchange.

This requirement ensures that contracts are based on reciprocal obligations rather than one-sided promises.

Why Consideration Is Required

The law requires consideration to:

• Distinguish binding contracts from informal promises
• Confirm that parties intended a commercial or legal exchange
• Provide evidence of mutual assent
• Prevent enforcement of purely gratuitous promises

It is a key safeguard in English contract law, particularly in business agreements where financial and operational risks are significant.

The Core Principle: “Price of a Promise”

Each party must provide something in return for the other party's promise. This is often described as the “price of a promise”.

Examples include:

• Paying money in exchange for goods or services
• Providing services in exchange for payment
• Agreeing to refrain from doing something (forbearance)

Even small or symbolic value can be sufficient if it forms part of a genuine bargain.

Key Legal Principles of Consideration

1. Consideration Must Have Legal Value

Consideration must have some legal or economic value, but it does not need to be equal or fair in value.

• A small payment can support a large obligation
• Courts do not assess commercial adequacy

For example, nominal payments (sometimes called “peppercorn consideration”) can still be valid if agreed as part of a contract.

2. Consideration Must Be Sufficient, Not Adequate

The law focuses on sufficiency rather than fairness:

• Sufficient: recognised by law as having value
• Adequate: equal in economic value (not required)

This principle supports freedom of contract in commercial dealings, allowing businesses to set their own pricing structures.

3. Consideration Must Move From the Promisee

Only a party who provides consideration can enforce a contractual promise. A third party who does not contribute consideration generally cannot sue on the contract.

This principle reinforces the link between contractual rights and obligations.

Types of Consideration in Contract Law

1. Executed Consideration

This occurs when one party performs an act in response to a promise.

Example:

• Payment is made after delivery of goods

2. Executory Consideration

Both parties make promises to be performed in the future.

Example:

• A contract for future delivery of services in exchange for future payment

3. Past Consideration (Generally Invalid)

Consideration must normally be given in exchange for the promise. Acts performed before a promise is made are not valid consideration.

Example:

• Doing work first and later being promised payment usually does not create a binding contract

The rule was confirmed in cases such as Re McArdle (1951).

Existing Duties and Consideration

Pre-existing contractual duties

Performing an existing contractual obligation is generally not valid consideration for a new promise. This was established in Stilk v Myrick.

However, modern law has developed exceptions.

Practical benefit rule

A promise to pay more may be enforceable where the promisor obtains a practical commercial benefit.

This principle was recognised in Williams v Roffey Bros & Nicholls (Contractors) Ltd (1991), where avoiding delay and penalty costs was treated as valid consideration.

Part payment of debt

A promise to accept less than the full amount of a debt is generally not binding unless supported by fresh consideration.

This rule is associated with Foakes v Beer (1884)

In such cases:

• Paying part of a debt does not discharge the full liability
• Additional consideration is required for the creditor's promise to waive the balance

Exceptions to the Consideration Requirement

Although consideration is fundamental, there are limited exceptions:

1. Promissory estoppel

A promise may be enforced where:

• One party relies on it, and
• It would be unfair to allow withdrawal of the promise

This is generally used as a defensive mechanism in disputes rather than a basis for a standalone claim.

2. Deeds

Certain formal agreements, known as deeds, are binding without consideration if properly executed.

Common in:

• Property transactions
• Guarantees
• Certain commercial contracts

Consideration in Commercial Contracts

In business contexts, consideration commonly arises in:

• Supply and service agreements
• Employment contracts
• Franchise and licensing arrangements
• Contract variations and renegotiations

Courts examine whether each side has provided something of value, particularly in contract amendments where disputes frequently occur.

Common Disputes Involving Consideration

1. Contract variations

Whether additional payment is supported by new consideration.

2. Unpaid invoices or partial payments

Whether debt settlement agreements are binding.

3. Informal business agreements

Whether emails or verbal assurances constitute enforceable bargains.

4. Performance disputes

Whether extra work or delay avoidance constitutes valid consideration.

Time Limits for Claims Involving Consideration Issues

Claims arising from disputed contracts must generally be brought within:

• 6 years under the Limitation Act 1980 (simple contract claims)
• 12 years for contracts executed as deeds

Failure to act within these time limits typically bars enforcement.

Practical Steps in Disputes Involving Consideration

When consideration is disputed, parties typically:

1. Review the contract or communications in full
2. Identify what each party provided in the exchange
3. Assess whether performance was pre-existing or new
4. Examine whether variation terms were agreed clearly
5. Consider whether promissory estoppel or other doctrines may apply
6. Evaluate evidence such as emails, invoices, or conduct

Final Thoughts

Consideration is a fundamental requirement of enforceable contracts in England and Wales. It requires that each party provides something of legal value as part of a mutual exchange. While the traditional rules remain strict-particularly regarding past consideration and existing duties-modern case law has introduced flexibility in commercial contexts, especially where practical benefits arise. Understanding how consideration operates is essential for assessing contract validity, enforcing agreements, and resolving business disputes.