Typically, donor contributions to the credit unions are targeted and used in the same statutory requirements and restrictions as the Mutual Financial Aid fund as a whole. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. 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. In the credit union compensation for use of the loan (interest) is a source of compensation for savings. Initially, the target groups of credit unions were farmers (Raiffeisen), and now they include both individuals (credit unions), and organizations. 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.