To get a loan in the credit union a shareholder must be not only a formally adopted there, but necessary pay in cash contributions, the amount and order of payment of which approved by the General Assembly and fixed by the charter. 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. Principles of cooperative democracy and interaction were adequate to the purposes for which people joined credit unions. The number of shareholders of a credit union is limited and formalized by a list. Limit of the number is defined by the assembly and such assembly establishes the charter. 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. To reduce the risk of default on loans members of the credit union shall the joint guarantee. In the UK, credit unions are a source of financing of people groups. This tool is not widely used. The right to use the services of the credit union have only its members. Credit unions base their activities on savings of shareholders, their shares and savings contributions, which make up the fund of mutual financial assistance - a source of cash loans to shareholders.