The diploma thesis is focused on the issue of mergers. The work provides the accounting, tax and legal perspective of mergers. The aim of this diploma thesis is the elaboration of a detailed comparative analysis of mergers realized in the territory of the Czech Republic in 2017. The introductory part describes the basic theoretical aspects of mergers, including their legal and tax treatment, individual forms and motives for their realization. At the beginning of mine own work is outlined the selection of statistical criteria, the way of obtaining and evaluation of data. The presentation of the results of the work is divided into two parts; the first part analyzing the mergers carried out in 2017 from many points of view, such as the represe...