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. First Credit Union was savings unprofitable institution, or rather credit cooperative, providing services to its members. The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Credit unions of the open type are still controlled by their members, but at the same time provide services to people who are not its members (external customers). In the case of default the shareholder - individual will respond with its property and, in addition, is jointly and severally liable with the credit union's commitments. Shareholders in corporate organizations are basic credit unions, besides the same union can be a shareholder of several corporate organizations. 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.