Home › Opportunities › Valid vs Void vs Voidable Contract: What’s the Difference?
Opportunity

Valid vs Void vs Voidable Contract: What’s the Difference?

H
By Herus
• September 29, 2026 • 7 min read

Under the Indian Contract Act, 1872, not every agreement has the same legal status. Some agreements are fully enforceable, some are void from the beginning, and some remain enforceable until one party chooses to avoid them. The law also distinguishes between illegal transactions and arrangements that are merely unenforceable because of a legal or procedural defect.

Understanding these distinctions is important because the legal consequences of each category are different.

Valid Contract

A valid contract is an agreement that is enforceable by law. Section 2(h) of the Indian Contract Act defines a contract as an agreement enforceable by law. Section 10 provides the principal requirements for an agreement to become a contract. It must generally be made by competent parties with free consent, for lawful consideration and a lawful object, and must not be expressly declared void.

For example, A agrees to sell his car to B for ₹5 lakh. If both parties are competent, their consent is free, the transaction has a lawful object and consideration, and no other legal requirement prevents enforcement, the arrangement constitutes a valid contract.

Void Agreement

A void agreement is an agreement that is not enforceable by law. This is the definition provided by Section 2(g).

The Contract Act declares several categories of agreements void. These include certain agreements affected by mutual mistake of fact, agreements with unlawful consideration or object, agreements in restraint of marriage or trade, uncertain agreements and wagering agreements. A minor’s agreement is another important example. In Mohori Bibee v. Dharmodas Ghose, the Privy Council held that an agreement entered into by a minor was void. The decision remains a leading authority on contractual capacity in India.

A void agreement therefore cannot be enforced simply because the parties had agreed to its terms.

Voidable Contract

A voidable contract is different because it remains legally effective until the party entitled to avoid it exercises that right. Section 2(i) defines a voidable contract as a contract enforceable at the option of one or more parties, but not at the option of the other party or parties.

For example, where a person’s consent has been obtained through fraud, coercion or misrepresentation in circumstances covered by Section 19, the affected party may avoid the contract. Similarly, Section 19A deals with contracts induced by undue influence. The key difference is therefore simple: a void agreement has no enforceability, whereas a voidable contract can continue to operate unless the entitled party chooses to avoid it.

Void Contract

A void contract should not be confused with a void agreement. Section 2(j) provides that a contract which ceases to be enforceable becomes void when it ceases to be enforceable. Thus, a void contract is one that was initially enforceable but subsequently loses its enforceability. Section 56 provides an important example. If performance of a contract subsequently becomes impossible or unlawful because of circumstances covered by the provision, the contract becomes void from that point.

The distinction can therefore be remembered as:

Void agreement → not enforceable.
Void contract → initially enforceable, but later becomes unenforceable.

Illegal Agreement

An illegal agreement involves an unlawful object or consideration. Section 23 states that consideration or object is unlawful where, among other circumstances, it is forbidden by law, defeats the provisions of law, is fraudulent, involves injury to a person or property, or is regarded by the court as immoral or opposed to public policy. An agreement with such an object or consideration is void.

The important distinction is: Every illegal agreement is void, but every void agreement is not illegal.

The Supreme Court explained this distinction in Gherulal Parakh v. Mahadeodas Maiya, where it considered the relationship between wagering agreements and illegality under Section 23. The Court distinguished an agreement that is merely void from one whose object or consideration is unlawful.

Unenforceable Contract

“Unenforceable contract” is not a separate definition in Section 2 of the Contract Act. The expression is generally used where an agreement or contract may otherwise be legally valid but cannot presently be enforced because of a particular procedural, formal or evidentiary defect. The exact consequence depends upon the law creating the requirement. Section 10 itself recognises that other laws may require certain transactions to be in writing, witnessed or registered.

A significant example is the Supreme Court’s 2023 decision in In Re: Interplay Between Arbitration Agreements and the Indian Stamp Act. A seven-judge Bench held that an unstamped or inadequately stamped arbitration agreement was not void merely because of the stamping defect; in the context considered by the Court, the instrument was inadmissible until the defect was cured under the Stamp Act.

Thus, unenforceability should not automatically be treated as voidness.

Valid, Void, Voidable, Illegal and Unenforceable: Difference

TypeMeaningExample
Valid contractEnforceable by lawSale of a car between competent parties
Void agreementNot enforceable from the outsetMinor’s agreement
Voidable contractEnforceable until the entitled party avoids itContract induced by fraud
Void contractContract that later becomes unenforceableContract affected by subsequent impossibility
Illegal agreementAgreement involving unlawful object or considerationAgreement to divide proceeds of fraud
UnenforceableCannot presently be enforced because of a particular legal defectCertain transactions affected by formal or evidentiary defects

The Easiest Way to Remember the Difference

The distinction can be understood by asking what happened to enforceability.

If the agreement satisfies the applicable legal requirements, it is a valid contract. If the law does not recognise it as enforceable, it may be a void agreement. If one protected party has the option to continue or avoid the relationship, it is voidable. If an existing contract subsequently loses enforceability, it becomes a void contract. If the transaction itself has an unlawful object or consideration, it may be illegal. Where enforcement is blocked because of a particular procedural or evidentiary defect, the arrangement may be described as unenforceable, depending on the applicable law.

Common Mistakes in Exams

The most common mistake is calling a minor’s agreement voidable. The principle in Mohori Bibee is that such an agreement is void. Students also frequently use void and illegal as synonyms. They are not the same. Gherulal Parakh is the leading authority for understanding this distinction. Another mistake is calling an unstamped agreement automatically void. The Supreme Court’s 2023 decision concerning arbitration agreements demonstrates that a stamping defect does not necessarily make an agreement void. Finally, void agreement and void contract should not be used interchangeably. Section 2(g) concerns a void agreement, whereas Section 2(j) concerns a contract that subsequently becomes void.

Frequently Asked Questions

Is every void agreement illegal?

No. An agreement can be void without being illegal. Gherulal Parakh v. Mahadeodas Maiya is an important authority on this distinction.

Can a voidable contract be enforced?

Yes. It remains enforceable until the party entitled to avoid it exercises that right.

What is the difference between a void agreement and a void contract?

A void agreement is not enforceable as an agreement, whereas a void contract is a contract that was initially enforceable but later ceased to be enforceable.

Is an unenforceable contract the same as a void contract?

No. “Unenforceable” may describe a transaction affected by a particular procedural or formal defect. A void contract has specifically ceased to be enforceable under the applicable legal rule.

What is the leading case on a minor’s agreement?

Mohori Bibee v. Dharmodas Ghose is the leading authority establishing that a minor’s agreement is void.

Conclusion

The central distinction between these categories lies in the nature and timing of the problem affecting enforceability. A valid contract is enforceable, a void agreement is not enforceable, a voidable contract remains enforceable at the option of the protected party, and a void contract loses enforceability after initially being valid. An illegal agreement involves an unlawful object or consideration, while an unenforceable arrangement may be affected by a specific procedural or evidentiary defect.

For examination purposes, always identify the specific statutory provision and legal consequence rather than using “void,” “illegal” and “unenforceable” interchangeably.

Read our latest beginner’s guide on how to read a bare act

Interested in Contract Law, also read our guide on how to draft a Legal Notice

References

  1. The Indian Contract Act, 1872, Sections 2(g)–(j), 10, 11, 19, 19A, 20, 23–30, 56 and 64.
  2. Mohori Bibee v. Dharmodas Ghose, (1903) 30 IA 114 (PC).
  3. Gherulal Parakh v. Mahadeodas Maiya, AIR 1959 SC 781.
  4. In Re: Interplay Between Arbitration Agreements under the Arbitration and Conciliation Act, 1996 and the Indian Stamp Act, 1899, Supreme Court of India, 13 December 2023.
  5. The Indian Stamp Act, 1899, Section 35.

Know someone who'd be a great fit? Share this with them. Share Opportunity
The LawCademy
Scroll to Top