Consent and Free Consent in the Law of Contract
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Author’s Note: Understanding the difference between mere consent and free consent is vital for anyone studying contract law. In this article, we break down the concept, relevant legal provisions, and global case laws in a way that is easy to grasp and backed with practical examples.
1. Introduction
Section 10 of the Contract Act 1872 states:
“All agreements are contracts, if they are made by the free consent of the parties.”For a contract to be valid, there must be:
- Consent — an agreement between parties.
- Free Consent — consent that is given voluntarily without any unlawful pressure or misrepresentation.
Lawyers often use the Latin phrase consensus ad idem meaning “meeting of minds” — both parties must agree on the same thing in the same sense.
In order to make a valid contract, it is necessary that there should be (a) Consent and (b) Free Consent. For the formation of a contract, the parties should either have assented or be deemed to have assented to the same thing in the same sense. It is called consensus ad idem
New to contract formation? Start with the Essentials of a Valid Contract and then dive deeper into how free consent keeps agreements enforceable.

2. Relevant Provisions
- Section 13: Defines “consent.”
- Section 14: Defines “free consent.”
- Other connected sections: 15 (Coercion), 16 (Undue Influence), 17 (Fraud), 18 (Misrepresentation), 20–22 (Mistake).
3. Meaning of Consent
Consent has been explained by different authorities:
- Webster’s Dictionary: “To agree or to be willing to do something.”
- Black’s Law Dictionary: “A concurrence of wills; voluntary yielding to the proposition of another.”
- Contract Act 1872, Section 13: “Two or more persons are said to consent when they agree upon the same thing in the same manner.”
Essentials of Consent
- Agreement on the same thing: If one party thinks they’re buying a ‘diamond ring’ and the other party is selling a ‘replica ring’, there is no true consent.
- Agreement in the same sense: Both parties must understand the contract terms in the same way.
- Mutual expression of agreement: There must be clear communication of agreement between both sides.
1. Parties must agree on the same thing.
2. Parties must agree in the same sense.
If one of the parties to an apparent contract, by his own fault, enters into it in a sense different from that in which it was understood by the other party, he may be precluded from setting up that there was no agreement in the same sense.
3. Parties' expressions must be in agreement:
The purpose of the great majority of contracts is to effect an exchange of
promises, or of certain performances. To attain this purpose, there must be
mutual expressions of assent to the exchange.
4. Meaning of Free Consent
Free consent is more than just agreeing — it’s agreeing voluntarily, without any unlawful interference. A mere consent is different from a free consent. For a valid contract, the consent, as explained above, must not only merit being consent but also being a free one, as defined below:
- Case Law (India): Ranganayakamma v. Alwar Setti (1889) — Consent obtained under threat of preventing a funeral was held not to be free.
- Case Law (UK): Barton v. Armstrong [1976] — A contract signed under threat of death was voidable due to coercion.
- Contract Act 1872, Section 14: Consent is free when it is not caused by coercion, undue influence, fraud, misrepresentation, or mistake.
- [London and Lancashire Insurance Co Ltd Vs Vinoy Krishna, 220 IC 379] — Consent is free when the activity of man, by which it is affected, works without obstacles to impede its exercise; such obstacles are named in this section.
- Black's Law Dictionary: Free consent means "voluntary agreement by a person in the possession and exercise of sufficient mental capacity to make an intelligent choice to do something proposed by another".
5. Essentials of Free Consent
(a) Coercion (Section 15)
Coercion means using force or threats to compel someone to agree. It is a Restraint, compulsion, or act of compelling by physical or mental force or arms to repress. In the widest sense, it implies that fear is the motive that coerces the will. Every transaction in this sense is regarded as voidable. In this sense, Coercion would cover every case where a party to an agreement is deprived of the freedom of their will. It is defined in Section 15 of the Contract Act. For example, threatening to harm someone’s property unless they sign a contract.
Example: In Barton v. Armstrong, threats of death made the contract voidable.
For a focused guide with illustrations and remedies, see: Coercion in Contract Law.
(b) Undue Influence (Section 16)
Occurs when one party uses a position of power to dominate another’s will — common in relationships like doctor–patient or lawyer–client. Undue influence is a mental or moral threat. There is undue influence when the influence exerted overpowers the will without convincing the judgment. It is a grip on another's mind.
It may be defined as “the unconscious use by one person of power possessed by him over another in order to induce the other to enter into a contract".
Example: In Royal Bank of Scotland v. Etridge (No 2) [2001], undue influence was established in a guarantee case involving a wife pressured by her husband.
Want the full doctrine, tests, and leading cases? Read Contracts Under Pressure: Undue Influence.
(c) Fraud (Section 17)
Fraud is intentional deception to induce another into a contract. Fraud so clouds the reason that the person defrauded cannot form a rational judgment of the effect of the transaction upon his interest. Consent cannot be said to be free when it has been obtained by fraud.
Example: Selling land by showing forged documents — the buyer’s consent is not free.
Elements, illustrations, and landmark authorities here: Fraud in the Law of Contract.
(d) Misrepresentation (Section 18)
It means misstatement of a fact material to a contract. A mere expression of opinion cannot be called Misrepresentation. If Misrepresentation is made wrongly and intentionally, it is said to be fraud. Misstatement of a material fact — even if unintentional — that induces the other party to contract.
Example: In Derry v. Peek (1889), false statements without reasonable grounds amounted to misrepresentation.
Different types, remedies, and key distinctions are explained in Understanding Misrepresentation in Contract Law.
(e) Mistake (Sections 20–22)
When parties misunderstand a fundamental fact, there is no true agreement. Parties of the contract should agree on the same thing in the same sense. If parties give their consent under any error, there is no agreement. In other words, where the parties have different things in mind or understand the same thing in different ways is not free consent.
Example: If both parties contract for shipment of goods on the “SS Peerless,” but each meant a different ship of the same name, there is no consensus ad idem (Raffles v. Wichelhaus [1864]).
6. Effect of Absence of Free Consent
If consent is not free, the contract becomes voidable — the aggrieved party can either rescind it or affirm it. Without free consent, there is no enforceable agreement.
Confused about remedies and status? See Void and Voidable Contracts (with Examples).
Conclusion
Free consent is the foundation of fairness in contractual relationships. Without it, even the most meticulously drafted agreement loses its legal force. Whether in Pakistan under the Contract Act 1872, in the UK under common law principles, or in the United States under contract statutes and the Restatement (Second) of Contracts, the principle remains universal — no contract is truly valid unless the parties agree voluntarily, without coercion, undue influence, fraud, misrepresentation, or mistake. In global commerce, respecting free consent not only ensures legal compliance but also builds trust, reduces disputes, and fosters long-term partnerships. For students, lawyers, and business professionals alike, understanding free consent is not just an academic requirement — it’s a practical necessity.
Frequently Asked Questions (FAQs)
What is free consent in the formation of a contract?
Free consent means both parties agree voluntarily, without coercion, undue influence, fraud, misrepresentation, or mistake. Without free consent, a contract is not truly valid.
When is consent considered not free?
Consent is not free when it is obtained through threats, abuse of dominance, intentional deception, material misstatement, or where both parties are mistaken about a fundamental fact.
What are examples of coercion, undue influence, fraud, misrepresentation, and mistake?
Coercion: Threatening harm unless a party signs.
Undue influence: A person in a position of trust
overpowers another’s will (e.g., adviser–client).
Fraud: Intentional deception (e.g., forged title).
Misrepresentation: False but non-fraudulent statement
inducing agreement.
Mistake: A fundamental error shared by both parties
about the subject or terms.
How does absence of free consent affect a contract’s validity?
The contract becomes voidable at the option of the aggrieved party. They may rescind (cancel) or affirm the contract and, where applicable, seek restitution or damages.
Why is free consent important in international business?
It builds cross-border trust, reduces disputes and compliance risks, and helps ensure agreements are enforceable in multiple jurisdictions.
What is free consent in the formation of contract?
Under Section 14 of the Contract Act 1872, consent is free when it is not caused by coercion (s.15), undue influence (s.16), fraud (s.17), misrepresentation (s.18), or mistake (ss.20–22).
Briefly discuss Coercion, undue influence, Fraud, Misrepresentation and Mistake.
These are vitiating factors that interfere with true agreement. Coercion and undue influence affect the will; fraud and misrepresentation distort facts; mistake means there is no true meeting of minds on a fundamental fact.
Write a note on Free Consent and Consent.
Consent is agreeing on the same thing in the same sense; free consent is that agreement reached without the vitiating factors listed above. Only then is the contract valid and enforceable.
When Consent considered being free?
Consent is considered free when it is not produced by coercion, undue influence, fraud, misrepresentation, or mistake, and each party acts voluntarily with full understanding of the terms.
How does the absence of free consent affect the Contract?
Absence of free consent renders the contract voidable at the choice of the affected party, who may rescind or affirm it and pursue remedies permitted by law.