The article examines the importance of e-commerce in the modern world, as well as the level of its development and legal regulation in the BRICS countries. The author studied the problems of functioning of international electronic commerce during the 2020 coronavirus pandemic. For the purpose of comparative legal research, the legislation on electronic commerce of the Russian Federation, the People’s Republic of China, Brazil, India, and the Republic of South Africa was considered. In the course of the study, it was concluded that the existence of a single normative act regulating exclusively legal relations within the framework of electronic commerce was the most effective way of legal regulation in this area.