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. 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. The economic basis of credit unions - finances of a household. The main objective of the credit union - to ensure financial stability of a household, to ensure the priority of their shareholders' financial interests. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Historically, credit unions have grown from the experience of credit cooperatives, but they took the experience of organizations of mutual aid of citizens by moving methods of social self-protection from labor and toward consumption. In the UK, credit unions are a source of financing of people groups. This tool is not widely used. Corporate alliances are intermediaries between credit unions and financial markets.