Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. First Credit Union was savings unprofitable institution, or rather credit cooperative, providing services to its members. 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. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Over 30% of the assets of credit unions are investments in government securities, certificates of deposit of banks and savings loan associations, as well as in the parent credit unions, and other risk-free investments. In the credit union compensation for use of the loan (interest) is a source of compensation for savings.