Nowadays a major change in interactions and concepts like independence has led to a transformation in the law of contracts. A clear example can be observed in the continuing expansion of compulsion into contracts (conclusion of compulsory contracts). In the modern law, the phenomenon of compulsory contract is considered to be inevitable, and the law of Iran is no exception. On the account of the fact that this concept has not undergone in-depth analyses neither in Iranian law system nor among the jurists, the study of this system of law in regard to its capacity to accept this phenomenon would be probably a challenging issue. Direct reference to law so as to infer an obligation to enter a contract or resort to one in order to conclude the existence of a type of implied term creating such an obligation is the subject matter of this study.