Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). The uniqueness of credit unions is that they put together the principles and benefits of financial cooperatives, consumer cooperatives and mutual aid funds, born once by trade unions. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. 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. In the case of default the shareholder - individual will respond with its property and, in addition, is jointly and severally liable with the credit union's commitments. On the consumer credit market in the U.S. credit unions are on the third place after the commercial banks and finance companies and are ahead of savings institutions, not taking into account the loans on real estate. Credit union as a consumer cooperative operates on the principles of equality of all its members.