A unilateral contract is a one-sided agreement where only one party is bound, and it becomes enforceable once the other party completes a specific action, like claiming a posted reward. A bilateral contract is a two-sided agreement where both parties exchange promises and are bound from the start, like ordering a meal at a restaurant. The core difference is how many parties are obligated, and when.
Consider a simple example of a unilateral contract: a reward offered for the return of a lost dog. In this scenario, the owner of the lost dog announces publicly a reward for anyone who successfully locates and returns the missing pet. Until the dog is found and returned, the owner is under no legal obligation to fulfill the promise of the reward. The individual seeking to claim the reward can only do so by fulfilling the condition stipulated in the contract, which is finding and returning the lost dog. Once this condition is met, the contract becomes enforceable, and the owner is obligated to provide the promised reward.
On the other hand, bilateral contracts are the more common type of contract encountered in everyday life. Unlike unilateral contracts, bilateral contracts involve mutual promises exchanged by both parties, resulting in reciprocal obligations. A quintessential example of a bilateral contract can be found in the dining experience at a restaurant.
When you dine at a restaurant, you implicitly enter into a bilateral contract with the establishment. By sitting down and ordering a meal, you are making an implied promise to pay for the food you consume. Similarly, the restaurant undertakes an obligation to provide you with the meal you ordered in exchange for the payment you will make upon receiving the bill.
Although no formal contract may be signed, the actions and conduct of both parties constitute a binding agreement recognized by the courts. In this transaction, both parties derive benefits: the diner receives a meal, and the restaurant receives compensation for providing the food and service.
An essential characteristic of contracts is consideration. Consideration is the benefit that each side will receive from participating in the transaction. For the unilateral contract example of the lost dog, there is consideration in that contract as well. The dog owner gets his dog returned to him and the individual who returns the dog receives some sort of compensation for his time and effort.
In both unilateral and bilateral contracts, the principle of offer and acceptance remains fundamental. In unilateral contracts, the offer is extended by the party promising payment or reward upon the completion of a specified task, while acceptance occurs when the other party fulfills the required condition. Conversely, bilateral contracts involve a reciprocal exchange of promises, with offer and acceptance occurring simultaneously.
Additionally, it's essential to recognize that while unilateral contracts may appear one-sided initially, they are treated as real and legally binding contracts once the specified task is completed. Upon fulfillment of the condition, both parties are considered to have obligations to one another, one party has already completed their obligation by fulfilling their task and now the other party must fulfill its promise to compensate.
In summary, while unilateral contracts involve one party making a promise contingent upon the completion of a specified task, bilateral contracts entail mutual promises exchanged by both parties. Understanding the distinctions between these contract types is crucial for navigating various legal and commercial transactions effectively.
If you need help drafting or reviewing a unilateral or bilateral contract, our Utah business attorneys can make sure your agreement is clear, enforceable, and protects your interests. Contact Sumsion Business Law to talk with an attorney.
Q. What is a unilateral contract?
A. A unilateral contract is an agreement where one party promises something in exchange for another party performing a specific act. Only the party making the promise is bound, and the contract becomes enforceable once the act is completed.
Q. What is a bilateral contract?
A. A bilateral contract is an agreement in which both parties exchange promises and take on obligations to each other. Most everyday contracts, from employment agreements to purchase orders, are bilateral.
Q. What is the main difference between a unilateral and bilateral contract?
A. In a unilateral contract, only one party is obligated until the other performs an act. In a bilateral contract, both parties are obligated the moment promises are exchanged.
Q. Is a reward offer a unilateral or bilateral contract?
A. A reward offer is a classic unilateral contract. The person offering the reward is only obligated to pay once someone completes the requested act, such as returning lost property.
Q. Are unilateral contracts legally binding?
A. Yes. Once the requested act is performed, a unilateral contract is fully binding and enforceable, and the offering party must provide the promised payment or reward.