What element of a contract is defined as a bargained-for exchange of value?

The element of a contract defined as a bargained-for exchange of value is consideration.

Consideration is what each party gives, promises, or agrees to give in exchange for the other party’s promise. It can be money, services, property, a promise to act, or a promise to refrain from acting. The exchange distinguishes an enforceable bargain from a gratuitous promise, such as an unenforceable promise to give someone a gift in many circumstances.

Contract law traditionally describes consideration through the bargain-for-exchange idea: the promisor’s promise must induce the promisee’s return promise or performance, and vice versa. The exchange does not usually need to be economically equal; courts generally do not measure whether both sides received the same market value.

A common mix-up is treating consideration as synonymous with payment. Payment is one form, but consideration can also be a service, a legal detriment, or a promise. Offer and acceptance establish mutual assent, while legality concerns whether the agreement’s purpose is lawful; neither term names the exchange of value itself.