Indebitatus Assumpsit Law and Legal Definition

Indebitatus assumpsit means ‘being indebted’ or ‘to have undertaken a debt’. It is a common law form of action. At common law, a form of action founded in contract in which the plaintiff alleges that the defendant has undertaken a debt and has failed to satisfy it. The indebitatus assumpsit action is in the nature of an action of debt and applicable only for recovery of damages for detention or loss. [Spratt v. M'Kinney, 4 Ky. 595 (Ky. 1809)].