Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. 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. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. 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. At the organization of the credit union it is important that people know each other and know the extent to which each of them is trustworthy. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations.