Unilateral Contract vs Voidable Contract in Law - What is The Difference?

Last Updated Feb 2, 2025

A voidable contract is a legally binding agreement that one party has the option to either enforce or rescind due to certain defects, such as misrepresentation, undue influence, or fraud. This flexibility protects your interests by allowing you to void the contract if unfair circumstances affected consent. Explore the rest of the article to understand how voidable contracts impact your legal rights and obligations.

Table of Comparison

Aspect Voidable Contract Unilateral Contract
Definition A contract valid until voided by one party due to legal defects. A contract where one party makes a promise in exchange for an act by another.
Parties Two parties with the option to affirm or rescind. One promisor and one promisee, where only one party's promise is active initially.
Enforceability Enforceable unless voided by the aggrieved party. Enforceable only upon completion of the requested act.
Examples Contracts with minors, contracts under duress. Reward offers, contests, insurance policies.
Right to Rescind Aggrieved party may rescind or ratify the contract. No rescission option until the act is performed.
Mutuality Mutual promises are exchanged with possible defects. Promise made by one party, performance by another.

Definition of Voidable Contract

A voidable contract is an agreement that is legally binding but may be declared invalid by one party due to factors such as fraud, misrepresentation, or duress. Unlike unilateral contracts, which involve one party making a promise in exchange for an act by another party, voidable contracts allow the injured party to either enforce or rescind the agreement. The legal capacity to void the contract typically arises from the presence of a defect that undermines the contract's validity but does not automatically render it null.

Definition of Unilateral Contract

A unilateral contract is a legally binding agreement where one party makes a promise in exchange for the other party's performance of a specific act, without an obligation for the second party to act unless they choose to do so. In contrast, a voidable contract is a valid agreement that one party can legally rescind or cancel due to factors like misrepresentation or duress. The core distinction lies in the unilateral contract's one-sided promise contingent on action versus the voidable contract's potential for annulment by one party.

Key Features of Voidable Contracts

Voidable contracts are agreements where one party retains the right to either enforce or void the contract due to factors like misrepresentation, undue influence, or incapacity. These contracts remain valid and enforceable until the aggrieved party chooses to rescind them, distinguishing them from unilateral contracts, which involve a promise in exchange for a specific act and become enforceable once the act is performed. Key features of voidable contracts include the presence of legal grounds for avoidance, the option for the affected party to ratify or annul the contract, and the preservation of contract validity pending the aggrieved party's decision.

Key Features of Unilateral Contracts

Unilateral contracts involve a promise made by one party in exchange for the other party's performance of a specific act, highlighting the element of acceptance through action rather than mutual agreement. These contracts become binding only when the requested act is completed, contrasting with voidable contracts which may be legally enforceable but subject to cancellation by one party due to factors like misrepresentation or coercion. Key features of unilateral contracts include the irrevocability of the offer once performance begins, the absence of a promise by the offeree until the act is performed, and the legal obligation arising solely upon the fulfillment of the stipulated condition.

Differences in Legal Enforceability

Voidable contracts allow one party to rescind obligations due to factors like misrepresentation or duress, granting the injured party the option to enforce or void the agreement. Unilateral contracts become legally enforceable only when the specified act is completed by the offeree, creating a binding obligation solely upon performance. The key difference lies in voidable contracts' conditional enforceability based on consent validity, whereas unilateral contracts enforce promises contingent on full performance.

Examples of Voidable Contracts

Examples of voidable contracts include agreements entered into under duress, misrepresentation, or undue influence, where one party retains the right to rescind the contract. In contrast, unilateral contracts involve one party making a promise in exchange for the other party's performance, such as a reward offer for finding a lost pet. Voidable contracts maintain validity until annulled, whereas unilateral contracts become binding upon the completion of the requested act.

Examples of Unilateral Contracts

Unilateral contracts involve a promise in exchange for an act, such as a reward offer for finding a lost pet or a payment promise for completing a specific task like painting a house. These contracts become binding only when the requested performance is fully executed, distinguishing them from voidable contracts, which may be invalidated due to factors like misrepresentation or coercion. Understanding examples like reward advertisements and service completion agreements clarifies the nature of unilateral contracts in legal and practical contexts.

Grounds for Contract Voidability

Voidable contracts can be invalidated due to factors such as misrepresentation, undue influence, coercion, fraud, or mistake, allowing the affected party to rescind the agreement. Unilateral contracts become binding only when the specified offeree performs the requested act, and disputes generally arise from non-performance rather than grounds for voidability. Grounds for voidability emphasize protecting parties from unfair consent, whereas unilateral contracts primarily focus on acceptance through action rather than mutual exchange of promises.

Rights and Obligations of Parties

A voidable contract allows one party the right to enforce or rescind the agreement due to factors like misrepresentation or undue influence, placing obligations on the other party only if the contract is affirmed. In contrast, a unilateral contract establishes an obligation solely when the specified performance is completed by the offeree, granting the offeror the right to demand performance but no obligation before it occurs. The key distinction lies in the enforceability options and when rights and obligations are triggered for each party under these contract types.

Practical Implications in Business Law

Voidable contracts allow one party to rescind the agreement due to factors like misrepresentation or undue influence, providing flexibility in resolving disputes without immediate nullification of the contract. Unilateral contracts involve a promise in exchange for performance, activating obligations only when the requested act is completed, often used in reward offers or performance-based agreements. Understanding these distinctions helps businesses manage risk, enforce obligations effectively, and navigate contract disputes with clarity in practical legal scenarios.

Voidable Contract Infographic

Unilateral Contract vs Voidable Contract in Law - What is The Difference?


About the author. JK Torgesen is a seasoned author renowned for distilling complex and trending concepts into clear, accessible language for readers of all backgrounds. With years of experience as a writer and educator, Torgesen has developed a reputation for making challenging topics understandable and engaging.

Disclaimer.
The information provided in this document is for general informational purposes only and is not guaranteed to be complete. While we strive to ensure the accuracy of the content, we cannot guarantee that the details mentioned are up-to-date or applicable to all scenarios. Topics about Voidable Contract are subject to change from time to time.

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