Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. The uniqueness of credit unions is that they put together the principles and benefits of financial cooperatives, consumer cooperatives and mutual aid funds, born once by trade unions. Is necessary that all shareholders of the credit union were members of a single community, would know each other well enough to enjoy mutual trust. The main advantage of credit unions consists in transparency, controllability, governance for shareholders. The value of credit unions is not limited to the role of the economic agent - they are an important element of the social structure and a factor of social stability and progress. 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. The right to use the services of the credit union have only its members.