Cross-border mergers and acquisitions are a type of foreign direct investment that has many positive effects on the domestic economy such as an increase in public revenues, an increase in employment and import of capital, new technologies, and skills. Due to the positive effects, the states try to attract foreign direct investments through tax incentives which can result in tax competition between them and ultimately in a decrease in tax revenues. In today's globalized world, cross-border mergers and acquisitions lead to greater opportunities to use status changes for tax savings and utilization of tax incentives for foreign direct investment. Tax savings on mergers and acquisitions can be achieved through the exploitation of tax losses of the target company, excessive exploitation of the interest tax shield, and undercapitalization of the acquiring company. Such practices are sought to be reduced to an acceptable level through the rules and standards published in the OECD's publication "Action Plan on Base Erosion and Profit Shifting" and through the "Anti-tax avoidance package at European Union Level". Changes at the global and European level affect the processes of tax due diligence and tax structuring of transactions in terms of requirements for greater compliance with the above-stated publications. Through the process of tax due diligence, the acquiring company wants to know the tax risks that exist within the target company, and in the process of structuring the transaction, the acquiring company wants to design a tax-efficient takeover structure. The subject of this master thesis is the tax aspects of selected status changes of mergers and acquisitions. The primary goal of the master thesis is to investigate and explain the processes of due diligence and structuring of the transaction that needs to be undertaken before the status change to reduce the tax risk to which the acquirer may be exposed. Furthermore, the additional objective is to investigate and explain the connection between cross-border mergers and acquisitions and the international and European framework for the prevention of tax evasion in mergers and acquisitions and their impact on Croatian legislation. The method used in the preparation of this master thesis is the analysis of qualitative data from the relevant literature, i.e. connecting and researching topics and concepts of tax aspects of mergers and acquisitions.