Today in the UK there are about 700 credit unions with assets exceeding 200 million pounds. Credit union services are available only to its shareholders. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars The value of credit unions is not limited to the role of the economic agent - they are an important element of the social structure and a factor of social stability and progress. 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 some cases, the initiators of credit unions can be trade unions, associations such as social support centers and others. 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.