Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. 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 right to use the services of the credit union have only its members. A credit union on its own initiative order is created by citizens (individuals) to solve their financial problems that they could not solve in other financial institutions.