Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. Representative organization, leading the coordination work in the field of development of both global and national credit union movement is the World Council of Credit Unions (WOCCU) established in 1971 (headquartered in Madison, USA). Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. To reduce the risk of default on loans members of the credit union shall the joint guarantee. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. As of the January 1, 2012 the national associations and confederations unite more than 196 million members participating in the 51,013 credit unions in 100 countries. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.).