The purpose of the article is to identify the characteristic problems arising at financing the political parties in the CIS countries. On the basis of general scientific methods of cognition, as well as comparative legal, formal legal and other problems of financing of political parties are revealed. These problems are connected with the fact that: the legislation of the CIS member states is characterized by the lack of a single concept of financing of political parties; direct state financing of political parties in the CIS countries is built primarily in the interests of pro-presidential parties; the legislator pays insufficient attention to indirect state financing; private financing of political parties in most CIS countries gives priority to commercial organizations. The obtained results will serve for further development of the Institute of political parties financing and its place in the system of the Russian law, as well as for the improvement of the Russian legislation on parties.