In 1908. the spread of credit unions has reached the United States. In 1935 President Roosevelt signed the state Charter on credit unions, which became a law. Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. Credit union services are available only to its shareholders. 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 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. Credit Union - one of the most attractive financial institutions for the public being a non-profit alternative to banks.