What is Consideration must be possible of performance?

Consideration must be possible of performance means that for a contract to be valid, the promises made by the parties must be capable of being fulfilled. This ensures that the obligations outlined in the agreement can realistically be performed under the circumstances. If the performance is impossible from the outset—due to physical, legal, or other constraints—the contract may be deemed unenforceable. Thus, both parties must have the ability to execute their respective promises for the contract to hold.