EN
Important role in defining entrepreneur has the objective aspect. The basic problem in this respect concerns the definition of economic activity. The study is an attempt to comment on the remarks on economic activities covered primarily in the Act on freedom of economic activity. In this respect, the author stresses that the definition of economic activity has previously been regulated by the Act on business activity and the Act on business law, which had been in force in Poland since the late eighties until the entry into force of the Act on freedom of economic activity. The author also made an analysis of characteristics of such economic activities as: gainful activity, organized activities and the activities carried out continuously. The article discusses comprehensively way to conduct business or professional activity by entrepreneur. In addition to examining the development of normative acts, the article shows decisions of the Supreme Court and the Supreme Administrative Court, and the views of doctrine.