Samusevych I. Reforming of tax system of Ukraine in conditions of tax competition

This paper summarized the researches of the essence, structure and function of the tax system; improved approach to understanding the nature of tax competition and systematized its model. Conceptual bases of tax system development in conditions of tax competition are proved; the list of European countries - Ukraine potential tax competitors of Ukraine is identified and current trends of convergence in their tax systems are investigated. Optimal levels of tax burden (total, on individuals and on company) for Ukraine are defined. Directions of reform of tax administration and local taxation in Ukraine are proposed.