Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. First Credit Union was savings unprofitable institution, or rather credit cooperative, providing services to its members. The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. To reduce the risk of default on loans members of the credit union shall the joint guarantee. 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 relationship between credit unions and shareholders arise from the membership and are not customer relationship. Credit unions are financial institutions, financial cooperatives of citizens, and in this capacity they are above all associations of people, not unification of capitals, which is typical, for example, for public companies.