Off-shoring is a wide-spread instrument for strategic management of companies. According to OECD, 60% of global trade is carried out among subsidiaries of multinational companies. This thesis describes possibilities and methods of using off-shoring which are supported by examples of real companies. The thesis does not deal with off-shoring in the form of production transfer to another state, but with off-shoring in the form of earmarking certain activities, such as purchasing, sale, financing, intellectual property, which are the ways to real cost reduction by means of tax optimisation. Tax savings can thus be used for reducing direct production costs in situations when the production cannot be transferred or when investment costs of such transfer would be too high. It can be also used for off-shoring the production activity.

Personal income tax with the focus on tax exemptions and possibilities of tax reductions This thesis deals with the problematics of the personal income tax. The focus of this thesis is on possibilities of reductions of the tax or the tax base and on tax exemptions. The thesis is divided into six chapters. The first chapter explains the general concept of taxes, the history of taxes and the characteristics of the tax law. The author devoted the second chapter to the income tax, especially to its characteristics and its statutory regulation. Nowadays all regulation of the personal income tax is contained in one act, Act no. 586/1992 Coll., Income Tax Act. However, in the past the situation was different and therefore it is necessary to mention also the previous regulation, which was scattered into several acts and other legal regulations. The present Income Tax Act has been valid and effective for almost thirty years and it has been amended to a greater or smaller degree several times. The author mentions these amendments in connection with particular issues throughout the whole thesis in order to compare the present and the previous regulation. The third chapter deals with the theoretical view of taxes. The author writes about the characteristics of taxes in general and also about the special...

Cette thèse a pour objet de voir en quoi la fiscalité est devenue à la fois un outil de gestion et de stratégie pour le développement des entreprises à tous les niveaux de leur existence juridique. Il s'agira de mettre cette affirmation en perspective avec les mécanismes mis en place par les Etats afin de lutter contre la fraude, l'évasion ou l'optimisation fiscale agressive, la fiscalité étant devenue un enjeu majeur de la politique économique des différents Etats notamment depuis la crise de 2008. Nos travaux s’intéresseront donc aux différents mécanismes utilisés par les entreprises afin de limiter leur charge fiscale et sur les solutions à envisager pour une meilleure gouvernance fiscale à la fois d'un point de vue législatif mais également de celui de la pratique des entreprises. / Le résumé en anglais n'a pas été communiqué par l'auteur.

The aim of this thesis is tax optimisation of legal income tax. Several options are suggested about how to diminish tax liability of an enterpreneurial subject. Out of many options, the most advantageous way was shown to be providing a grant for public utility purposes and acquisition of long-term tangible property. If the company decides for donation of money for public utility purposes or another suggested option of tax optimalisation, the amount of money paid into the state budget of the Czech Republic will decrease.

The subject of this diploma thesis is the tax optimisation of a selected business entity. The thesis aims at finding the most optimum tax solution possible, especially of corporation income tax in order that the selected entity has as low tax liability as possible. The diploma thesis is divided into a theoretical and practical part, each of which is divided into individual chapters and subchapters, dealing with specific problems. The introduction of the theoretical part includes basic terms relating to tax issues, general data on the taxation system of the Czech Republic. The following and, simultaneously, most comprehensive chapter is devoted to corporation income tax, namely for the reason that the practical part deals with alternatives of optimisation of corporation income tax. In these chapters I proceeded mainly from the current wordings of tax laws and other specialised publications. The practical part of the thesis provides, one by one, suggestions of individual alternatives for reducing tax liability, which are subsequently theoretically explained and practically calculated. When calculating the individual alternatives I proceeded on the basis of exact data and details that the selected enterprise had been provided to me. Thanks to it, I had the opportunity to obtain a good knowledge of its internal functioning, economic situation but also the ownership structure. A summary of these resultant alternatives is then given in chapter 7. It exactly shows what impact each of the alternatives would have on the enterprise{\crq}s tax liability and what the tax liability would amount to if all the alternatives proposed were used.

Pour lutter efficacement contre les phénomènes de fraude et d'évasion fiscales internationales favorisés par l'opacité des juridictions offshores et l'attractivité des paradis fiscaux, Je législateur a eu recours aux présomptions. Cette technique juridique a pour caractéristique de modifier la dialectique de la preuve en faveur de l'administration, qui n'est plus tenue de faire la démonstration de la fraude ou de l'évasion, mais seulement d'un ou de plusieurs faits connexes à l'infraction frauduleuse ou au fait d'optimisation fiscale abusive. En pratique, le législateur a souvent eu recours à des présomptions à la force renforcée, renversant directement le fardeau de la preuve sur le contribuable qui est d'emblée tenu d'établir la preuve d'un fait connexe exonératoire à l'infraction ou au fait abusif. Pour muscler leur efficacité, le législateur a également introduit des présomptions irréfragables, au couperet définitif. Les présomptions simples caractérisées par une clause anti-abus centrée sur l'objet ont pour particularité de faire peser sur le contribuable la charge d'une preuve qualitativement supérieure. Ces présomptions, dont l'actionnement est conditionné à la preuve d'un fait connexe par l'administration, représentent une catégorie hétérodoxe de dispositifs présomptif renforcés, obligeant le contribuable à faire un effort d'analyse sur les finalités des opérations, ce qui revient à lui faire supporter la charge de la preuve de l'absence d'abus de droit. L'emploi des présomptions se heurte essentiellement aux droits et liberté économiques communautaire et conventionnels, obligeant Je législateur à adapter les dispositifs présomptifs à ces contraintes. / In order to struggle efficiently against tax avoidance and tax evasion tendencies, enhanced by offshore jurisdictions, often lacking transparency, and tax havens with their attractive conditions, the lawmaker has enabled rebuttable and conclusive presumptions to be used in suing cases. These legal tricks favour Tax administrations in winning the argument, since those are no longer required to bring compelling evidence of tax avoidance or tax evasion. It is enough to prove a fraud, an offence or an aggressive tax optimisation process with one or several connected facts. In practice, the lawmaker is often using strengthened standards on presumption to reverse the burden of proof onto the taxpayer, who therefore must provide evidence for any exemptions from responsibility regarding the alleged offence or abuse. To improve these tools efficiency, the lawmaker has also designed conclusive ( or irrebuttable) presumptions. Usual presumptions are characterised by their emphasis on anti-abuse clauses, which oblige taxpayers to bring stronger evidences in lawsuit. For Tax authorities, these are part of a legal arsenal using connected facts against the defensor who carries the burden of proof related to tax monitoring operations in the absence of abuse of rights.

Dans le cadre de l’internationalisation puis de la mondialisation de la sphère économique et financière, les paradis fiscaux se sont développés tout au long du XXe siècle. Emergent à l’abri de la cage de l’Etat-Nation, ce phénomène de déconnexion de la sphère résidente de la sphère d’activité économique effective, a donné lieu à l’émergence de centres offshore, de manière embryonnaire durant la première moitié du XXe siècle, puis à une échelle industrielle sur l’ensemble des secteurs de l’activité économique à partir des années 1950. Les observateurs et les acteurs politiques des pays industrialisés se sont progressivement saisi du sujet dans le cadre de l’appréhension des effets dommageables de la concurrence fiscale internationale. Les difficultés rencontrées dans la lutte engagée à différentes échelles contre ces territoires traduisent l’ambiguïté des relations qu’entretiennent les grands pays industrialisés avec la sphère offshore. / In the framework of the growth and the internationalisation of the financial flows since the beginning of the twentieth century, Tax havens leading positions in the economic and financial environment have become so much important, that many political actors of the well developed countries have tried to assess this phenomenon through the international tax competition studies. Going further in the tax optimisation and tax planning process of the offshore sphere of activity, we can consider that far from being isolated in the sovereignty of a few countries, the offshore financial model is far integrated in the worldwide economic system, which can explain the difficulty and the different means used by the political authority to manage and stop the offshore mechanism through a by territory approach.