Credit unions attract people in the first place by the opportunity to get cash loan (credit) - quickly and relatively inexpensively. Income received by the credit union shall be distributed among the shareholders or spent for the depreciation of services, that is, are the most effective means of meeting the needs of shareholders. Until the 70's there was a proliferation of the U.S. credit unions due to the increase of their number and the number of shareholders, although it must be acknowledged that there was also and a qualitative growth. In the UK, credit unions are a source of financing of people groups. This tool is not widely used.