Is necessary that all shareholders of the credit union were members of a single community, would know each other well enough to enjoy mutual trust. Credit unions perform the function of social protection in a vital for people sphere of financial services. They care about improving the financial literacy of the population, are working on the formation of their members and their employees. 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. The relationship of shareholders with credit union are not client-based, they are co-operative, based on different principles and standards, in particular, on the principles of the law of obligations. Credit unions are competitors of savings institutions, adding interest on deposits of members. This applies to the shares, as well as to additional funds transferred to the account in the credit union. Contributions from of shareholders in credit unions in no way can be considered as borrowed funds, they come from the shareholders and for the shareholders and can not be used to provide services to third parties. Credit unions, like today's credit unions, emerged in the 19th century in Germany as a result of crop failure and famine. Standards by which credit unions build their work do not coincide with the standards and regulations of consumer cooperation of the usual type. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Worldwide credit union movement is represented by regional confederations and national organizations within the World Council of Credit Unions.