The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. Credit unions perform the function of social protection in a vital for people sphere of financial services. They care about improving the financial literacy of the population, are working on the formation of their members and their employees. 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. 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. The supreme body of the World Council of Credit Unions is the Assembly, which elects the president and the board of directors of WOCCU. Unlike banks, in order to use the services of a credit union, you have to become its member, having written an application and having paid thus shares and membership fee.