Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. 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. Credit union is created by a group of members who pursue a common interest. Agreeing to make regular contributions, they create a fund from which can borrow money for investments and replenishment of working capital at favorable interest rates. At the organization of the credit union it is important that people know each other and know the extent to which each of them is trustworthy. 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 UK, credit unions are a source of financing of people groups. This tool is not widely used. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity.