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. 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. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Credit unions perform the function of social protection in a vital for people sphere of financial services. They care about improving the financial literacy of the population, are working on the formation of their members and their employees. Since the early 80's started the process of consolidation of credit unions, leading to a decrease in their number with a simultaneous increase in the total number of members. 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. Standards by which credit unions build their work do not coincide with the standards and regulations of consumer cooperation of the usual type. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.