Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. 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. To reduce the risk of default on loans members of the credit union shall the joint guarantee. The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. Worldwide credit union movement is represented by regional confederations and national organizations within the World Council of Credit Unions.