Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. 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. Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. In some cases, the initiators of credit unions can be trade unions, associations such as social support centers and others. Standards by which credit unions build their work do not coincide with the standards and regulations of consumer cooperation of the usual type. Credit unions are financial institutions, financial cooperatives of citizens, and in this capacity they are above all associations of people, not unification of capitals, which is typical, for example, for public companies.