When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. National Credit Union Insurance Fund was created by Congress in 1970 to insure deposits of credit union members in the amount of 100 thousand dollars. 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. Credit cooperatives and credit unions exist in many different forms. The main differences relate to the nature of the membership and the opening of a credit institution. Credit unions encourage the proper use of shareholders savings, developing social programs (education, health, recreation, housing, etc.).