Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. The difference between credit unions and banks is clearly is apparent when comparing the structure of assets and liabilities of credit unions and banks. In the case of default the shareholder - individual will respond with its property and, in addition, is jointly and severally liable with the credit union's commitments. In some cases, the initiators of credit unions can be trade unions, associations such as social support centers and others. Credit unions historically formed as a special form of social support, initially taken upon themselves the social mission of protecting the interests of citizens in the field of financial services.