Borrowing rate for the credit union is a source of income to cover the administrative costs. All excess funds are returned to members in the form of dividends on savings. To reduce the risk of default on loans members of the credit union shall the joint guarantee. The relationship of shareholders with credit union are not client-based, they are co-operative, based on different principles and standards, in particular, on the principles of the law of obligations. Taking a decision to join a credit union, citizens create an organization through which they participate in the shared savings by mutual crediting and joint (collective) use of personal savings. Credit cooperatives and credit unions exist in many different forms. The main differences relate to the nature of the membership and the opening of a credit institution. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.). A credit union on its own initiative order is created by citizens (individuals) to solve their financial problems that they could not solve in other financial institutions.