Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. Corporate credit unions are united on a cooperative basis in the Central Credit Union (US Central Credit Union). To date, credit unions - virtually the only form of financial institution where people can quickly and without any problems get a relatively inexpensive cash loan. Borrowing rate for the credit union is a source of income to cover the administrative costs. All excess funds are returned to members in the form of dividends on savings. The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. 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. National Credit Union Insurance Fund was created by Congress in 1970 to insure deposits of credit union members in the amount of 100 thousand dollars. Income derived from the provision of services to its members, does not become the profit of credit union and is distributed among its members in proportion to their savings. The supreme body of the World Council of Credit Unions is the Assembly, which elects the president and the board of directors of WOCCU. 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.