The Master thesis deals with the analysis of tax havens, their origin and operating mechanisms. The thesis will elaborately describe individual entities advantaged in terms of taxes and specific ways of using offshore and onshore centers in order to achieve tax optimization, ownership anonymity, property protection or any other partial goal. The first part is theoretical and some basic terms related to this topic are defined in it. In the second part, the practical use of tax havens is discussed. In the first chapter, I described four selected jurisdictions in detail, and in the second and third chapters, I specifically illustrated how a company founded in an appropriately chosen tax haven can be utilized in achieving a predetermined goal