Special Assumpsit Law and Legal Definition

Special assumpsit means an action of assumpsit brought on an express contract. Assumpsit is a Latin term, meaning ‘he undertook.’ Special Assumpsit is an action based on the defendant’s breach of an express contract. It is also known as express assumpsit.

An action for expectation damages based on the breach of an express promise or contract to pay a debt may be referred to as a special assumpsit.