This diploma thesis deals with topic called Application of creditor´s claim in to the insolvency proceeding. Attention is paid on handling with this debt in the time between registration and review procedure, on which is this debt validated or rejected. This thesis is also focused on characteristics of each type of debt and their registration. The main focus of this thesis is on analysis of the topic - defects of registrations and its consequences on the creditors claim in insolvency proceeding. Part of this thesis is also detailed analysis of each disclaiming act and each person which can do this act. After that are studied consequences of these disclaiming acts. There is also compared current legislation with the old one and used jurispru...