Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. Credit unions attract people in the first place by the opportunity to get cash loan (credit) - quickly and relatively inexpensively. The number of shareholders of a credit union is limited and formalized by a list. Limit of the number is defined by the assembly and such assembly establishes the charter. 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. Members of credit unions place in credit unions usually free fund balances, ie those that remain after expenses devoted to education of children, the acquisition of new properties, additional pension benefits, etc. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one 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 cooperatives and credit unions exist in many different forms. The main differences relate to the nature of the membership and the opening of a credit institution. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Today, the World Council of Credit Unions is represented as members four regional confederations and twelve national associations.