Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. To date, credit unions - virtually the only form of financial institution where people can quickly and without any problems get a relatively inexpensive cash loan. Specialization of credit unions to provide financial services to its shareholders requires a particularly strict regulation of membership and acceptable activities. A potential new member of a credit union must submit a recommendation of shareholders in which the referee becomes a warrant of a future member of the credit union. 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.