Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. At the organization of the credit union it is important that people know each other and know the extent to which each of them is trustworthy. 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. 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. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.).