comparative study of the effect of Covid 19 on contractual obligation

Numerous legal questions have been raised about the outbreak of the deadly epidemic Covid 19, which requires legal systems to answer these questions. For example, this pandemic has led governments to take various measures to better ensure the health of their people. This has led to drastic changes in the economy and greatly affected contractual relations between people. In order to meet the legal needs of all, legal systems have come up with ways to regulate new laws for keeping public interest and avoid corruption, to establish justice and order. In this article, an attempt has been made to consider the views of various legal systems in the face of severe economic changes caused by Covid 19 in order to discard the principle of binding effect of contracts, paying attention to excuses and their impact on the contract and explain the effect of hardship on contract performance. Finally It should be analyzed the remedies of dissolution, suspension and adjustment based on the accepted principles in different legal systems.In the context in question ,Islamic law, as a legal system based on principles, rules and regulations, especially in the field of transactions in order to provide the interests of the people and avoid corruption, includes regulations that express the remedies (dissolution, suspension and adjustment)