Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. A potential new member of a credit union must submit a recommendation of shareholders in which the referee becomes a warrant of a future member of the credit union. 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. International cooperation has been particularly felt since the days when Alphonse Desjardins began the activity on development of credit union movement in North America. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. Credit unions appeared in England in the 19th century. In 1844 a group of workers from Rochdale established the first cooperative. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations. Credit union as a consumer cooperative operates on the principles of equality of all its members.