Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Today in the UK there are about 700 credit unions with assets exceeding 200 million pounds. Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. 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. 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 right to use the services of the credit union have only its members. Worldwide credit union movement is represented by regional confederations and national organizations within the World Council of Credit Unions.