Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Typically, donor contributions to the credit unions are targeted and used in the same statutory requirements and restrictions as the Mutual Financial Aid fund as a whole. In recent decades, many credit unions began to resort to such form of service as Credit union is created by a group of members who pursue a common interest. Agreeing to make regular contributions, they create a fund from which can borrow money for investments and replenishment of working capital at favorable interest rates. 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 main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. Credit unions base their activities on savings of shareholders, their shares and savings contributions, which make up the fund of mutual financial assistance - a source of cash loans to shareholders. Unlike banks credit unions limit their activities to a closed circle of people. Corporate alliances are intermediaries between credit unions and financial markets.