Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. 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. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. 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. The specifics of credit unions and, in some sense, their uniqueness lies in the fact that they work not for profit and do not appropriate profit.