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When Is It Fair To Break Promises? Illuminating Promissory Estoppel's Inequity Requirement, Marcus Moore

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Promissory estoppel is an important adjunct to contract law, allowing non-contractual promises to be legally binding under prescribed conditions. These conditions include reliance by the promisee, as the doctrine serves to protect reasonable reliance induced by certain types of promises. Typically, the conditions also include a requirement that it would be inequitable for the promisor to go back on the promise. This inequity requirement reflects the nature of promissory estoppel as a creature of the law of equity. Beyond this, however, considerable uncertainty surrounds the inequity element. For example, there are diverging views as to whether it embodies a distinct …