In recent decades, many credit unions began to resort to such form of service as Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. 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 union services are available only to its shareholders. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. National Credit Union Insurance Fund was created by Congress in 1970 to insure deposits of credit union members in the amount of 100 thousand dollars. Income derived from the provision of services to its members, does not become the profit of credit union and is distributed among its members in proportion to their savings. In the case of default the shareholder - individual will respond with its property and, in addition, is jointly and severally liable with the credit union's commitments. The relationship between credit unions and shareholders arise from the membership and are not customer relationship. The right to use the services of the credit union have only its members.