The economic basis of credit unions - finances of a household. The main objective of the credit union - to ensure financial stability of a household, to ensure the priority of their shareholders' financial interests. The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. In the UK, credit unions are a source of financing of people groups. This tool is not widely used. Credit union as a consumer cooperative operates on the principles of equality of all its members. A potential new member of a credit union must submit a recommendation of shareholders in which the referee becomes a warrant of a future member of the credit union.