Void Agreement vs Illegal Agreement under the Indian Contract Act, 1872: Section 2(g) and Section 23, Collateral Transactions and the Consequences of Illegality

Every illegal agreement is void, but not every void agreement is illegal. Between the immediate parties the two look identical, because neither can be sued upon. The difference shows itself elsewhere: in what happens to a transaction that is collateral to the main one, in whether money already paid can be recovered, and in whether consequences beyond the civil law follow. The distinction is therefore practical rather than terminological, and it is decided by asking whether the arrangement merely fails the test of enforceability or additionally offends Section 23.

1. The Two Categories

The Act itself uses only the word void. It nowhere defines an illegal agreement, and Section 23 speaks of a consideration or object that is unlawful. The category of illegality is therefore a judicial construction built on Section 23, and an agreement is illegal when its object or consideration falls within one of the six heads that section lists. The relationship between the two categories is one of inclusion: illegality is a subset of voidness, and the subset carries additional consequences.

1.1 The six heads of unlawfulness

1. Forbidden by law. The agreement does what a statute prohibits. Prohibition may be express, or may be inferred from the imposition of a penalty where the penalty was intended to prohibit the act rather than merely to tax it.
2. Of such a nature that, if permitted, it would defeat the provisions of any law. The agreement is not itself prohibited, but its performance would necessarily entail transgressing a statutory scheme. An arrangement to transfer a licence that the governing statute makes personal falls here.
3. Fraudulent. The object is to deceive a third person, as where parties agree to divide the proceeds of a fraud or to defeat creditors.
4. Involves or implies injury to the person or property of another. An agreement to assault a person, or a bond by a debtor to serve the creditor without wages until repayment, falls here.
5. Immoral. The courts have confined this head largely to sexual immorality and interference with the marital relationship, and have declined to widen it into a general moral supervision of bargains.
6. Opposed to public policy. The widest head, comprising trading with an enemy, stifling prosecution, maintenance and champerty in their objectionable forms, trafficking in public office, agreements interfering with the course of justice, and agreements in unreasonable restraint of personal liberty.

2. Void but Not Illegal

A large class of agreements is void without being in any sense unlawful. The Act declares them void as a matter of legislative policy about enforceability, not as a matter of disapproval of the parties' conduct.

• Agreements by a minor, void under Sections 10 and 11. There is nothing unlawful about contracting with a minor; the law simply declines to enforce the bargain.
• Agreements affected by bilateral mistake of fact, void under Section 20. The parties were honest and merely at cross purposes.
• Agreements in restraint of marriage or of trade, void under Sections 26 and 27, and agreements in restraint of legal proceedings, void under Section 28 to the extent stated.
• Uncertain agreements, void under Section 29 because the court cannot ascertain what was promised.
• Wagering agreements, void under Section 30 but expressly not made illegal.
• Agreements without consideration, void under Section 25 subject to its three exceptions.
• Agreements to do an impossible act, void under the first paragraph of Section 56.

2.1 The wagering illustration

Wagering is the standard illustration of the distinction because the Supreme Court has worked it through in terms. In Gherulal Parakh v. Mahadeodas Maiya, AIR 1959 SC 781, the Court held that a wagering agreement is void under Section 30 but is not unlawful within Section 23, and that the object of a partnership formed to enter into wagering transactions is therefore not unlawful. The consequence is that collateral claims survive: a partner may sue for contribution, and a person who lends money to another to enable him to pay a wagering debt may generally recover the loan, because the loan is collateral to an agreement that is void but not forbidden.

3. Void and Also Illegal

Where the object or consideration falls within Section 23, the agreement is void and the law goes further: it treats the transaction as one the legal system will not touch at all.

4. The Decisive Consequence: Collateral Transactions

The practical difference between the two categories lies almost entirely here. A transaction is collateral when it is subsidiary to, or facilitates the carrying out of, another agreement. The rule was stated with precision by the Orissa High Court in Rajat Kumar Rath v. Government of India, and reflects the settled position: a void agreement has no legal effect between the immediate parties, while an illegal agreement has the further effect that transactions collateral to it become tainted with illegality and are in consequence unenforceable. Where an agreement is merely collateral to another which, though void, is not prohibited by law, it may be enforced as a collateral agreement.

4.1 Recovery of money paid under an illegal agreement

The general rule is that a party cannot recover money paid or property transferred under an illegal agreement, because the claim would require him to found his case on the illegality. Three recognised departures should be noted. Where the parties are not in pari delicto, that is not equally at fault, as where one was induced by fraud, duress or the abuse of a fiduciary position, the less guilty party may recover. Where the party repents and withdraws before the unlawful purpose has been substantially carried out, restitution may be allowed. And where the claimant can make out his title without relying on the illegal transaction at all, his independent claim is not defeated.

5. Partial Illegality and Severance

Section 24 supplies the rule for mixed agreements: if any part of a single consideration for one or more objects, or any one or any part of any one of several considerations for a single object, is unlawful, the whole agreement is void. Severance is possible only where the lawful and unlawful parts rest on distinct and separable considerations, so that the lawful promise can stand on its own without the support of the unlawful one. Where the consideration is single and indivisible, the taint runs through the whole and nothing survives.

6. The Position Stated Shortly

1. Section 2(g) defines a void agreement as one not enforceable by law; Section 23 identifies the six heads on which a consideration or object is unlawful.
2. Every illegal agreement is void; every void agreement is not illegal. Illegality is a subset carrying extra consequences.
3. Minority, bilateral mistake, restraint of marriage or trade, uncertainty, wagering, absence of consideration and initial impossibility all produce voidness without illegality.
4. Gherulal Parakh: a wager is void under Section 30 but not unlawful under Section 23, so collateral claims survive.
5. Wagering is unlawful, and collateral transactions are tainted, in Gujarat and Maharashtra by virtue of the Bombay Wagers (Amendment) Act, 1865.
6. Brij Mohan: an agreement contravening a statutory prohibition is unlawful and void, and part performance does not cure it.
7. Pearce v. Brooks: a supplier who knows of the immoral purpose cannot recover, which illustrates the taint on collateral dealings.
8. Money paid under an illegal agreement is generally irrecoverable, subject to the exceptions for parties not in pari delicto, timely repentance, and claims independent of the illegality.
9. Section 24 voids the whole agreement where any part of a single consideration is unlawful; severance is possible only where the considerations are distinct.
10. Section 23 looks at the object of the agreement, not the motive of a party.

7. Related Topics and Provisions