Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Credit Union - one of the most attractive financial institutions for the public being a non-profit alternative to banks. Today, the World Council of Credit Unions is represented as members four regional confederations and twelve national associations.