This diploma thesis explores aspects of new Insolvent Law which has come into effect and is in accord with current legislation in Czech Republic. In the theoretical part there is a description of an Insolvent Proceeding process in accord with current legislation and a description of Insolvent Registry as a new evidence of subjects in the Insolvent Proceeding. The practical part of the thesis concerns with a solution of the bankruptcy in several chosen business subjects in accord with the Insolvent Law. Specifically this part describes particularities of chosen subjects and possibilities of their bankruptcy. It also inspects practicable forms of the bankruptcy in accord with current legislation, concrete applications of the Insolvent Law and effects to employees in the specific business subject. In the end of every described case there is an evaluation of chosen solutions of a bankruptcy according to Insolvent Law conditions.