Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). The economic basis of credit unions - finances of a household. The main objective of the credit union - to ensure financial stability of a household, to ensure the priority of their shareholders' financial interests. Principles of cooperative democracy and interaction were adequate to the purposes for which people joined credit unions. In the U.S. credit unions timely and full repayment of loans is a common phenomenon. Unpaid and delinquent loans are not more than 3% of their amount. 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. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars 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.