Legal Definitions - unifactoral obligation

Unifactoral Obligation

An obligation created by one party. It refers to a legal or moral duty to do or not do something that is imposed by law, contract, promise, social relations, courtesy, kindness, or morality. It is a duty that is binding on one party only.

• A promise made by a person to donate money to a charity is an example of a unifactoral obligation. The person is bound by their promise to donate the money, but the charity is not obligated to do anything in return.
• Another example is a unilateral contract, where one party makes a promise to do something in exchange for an act by the other party. For instance, a reward offered for finding a lost item is a unifactoral obligation because the person who lost the item is not obligated to do anything in return.

The examples illustrate the definition of unifactoral obligation by showing that it is a duty that is binding on one party only. In both cases, one party is obligated to do something without any obligation on the other party to reciprocate. This is different from a bilateral contract, where both parties are obligated to perform certain actions.