Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). Activity of the credit union consists of organizing mutual financial assistance by meeting the needs of its members in the services of saving and obtaining loans. Credit unions attract people in the first place by the opportunity to get cash loan (credit) - quickly and relatively inexpensively. Typically new members of the credit union become citizens having suretyship or recommendations from their friends - members of the credit union. 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. Credit unions of the open type are still controlled by their members, but at the same time provide services to people who are not its members (external customers). The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. Credit unions base their activities on savings of shareholders, their shares and savings contributions, which make up the fund of mutual financial assistance - a source of cash loans to shareholders. Credit union as a consumer cooperative operates on the principles of equality of all its members.