Acceptance of Unilateral Contract

Acceptance of Unilateral Contract: Understanding the Key Elements

A unilateral contract is a legal agreement where one party promises to perform an action upon the completion of a specific task by another party. Unlike a bilateral contract where both parties exchange promises, in a unilateral contract, only one party makes a promise, and the other party accepts the offer by completing the specified task. The acceptance of a unilateral contract is a crucial step in the contract formation process. In this article, we will take a closer look at the elements of acceptance in a unilateral contract.

Definition of Acceptance

Acceptance in a unilateral contract refers to the completion of the specified task by the party to whom the offer has been made. The offeror, the party making the promise, must clearly communicate the terms of the offer, including the task that the offeree, the party accepting the offer, must perform. The offeree must complete the task in the manner indicated in the offer.

Acceptance must be Unequivocal

In a unilateral contract, acceptance must be unequivocal. It must demonstrate a clear intention to accept the offer. The offeree must communicate their acceptance in a manner that leaves no room for doubt or ambiguity. For example, if the offer requires the offeree to perform a specific action, such as completing a task, they must do so without hesitation and in compliance with the terms of the offer.

Acceptance Must be Communicated

In a unilateral contract, acceptance must be communicated to the offeror. The offeree must inform the offeror that they have completed the specified task and have accepted the offer. The communication may be in the form of a written or verbal confirmation. If the acceptance is not communicated to the offeror, the contract is not deemed to have been formed.

Acceptance Must be Timely

Acceptance of a unilateral contract must be timely, which means that the offeree must complete the specified task within the timeframe stated in the offer. The timeframe for the completion of the task must be reasonable, and failure to complete the task within the stipulated timeframe may lead to a breach of contract.


In conclusion, the acceptance of a unilateral contract is a critical element in the contract formation process. It requires the offeree to complete the specified task in the manner indicated in the offer, communicate their acceptance to the offeror, and do so within a reasonable timeframe. As a professional, it is important to understand the key elements of acceptance of a unilateral contract so that you can effectively communicate these concepts to your readers.