Most modern credit unions represent specialized consumer cooperatives of citizens associated by the principle of social community: place of work, place of residence, profession, or any other shared interest. Is necessary that all shareholders of the credit union were members of a single community, would know each other well enough to enjoy mutual trust. Share contributions are transferred to the credit union on the basis of membership for the whole stay of a shareholder as member of the credit union and are the basis of membership. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit.