The authors disclose the essence of tax planning for domestic enterprises in the conditions of development of the economy in the context of the Fourth Industrial Revolution. Foreign experience as to approaches to interpretation of the phenomenon of «tax planning» is studied. It is substantiated that the existing modern approaches to the definition of the term of «tax planning» should be divided by the characteristics of purpose and subordination. The work contains a further elaboration of conceptual-categorical apparatus of taxation theory by closer defining of «tax planning», where, contrary to existing developments, it is proposed to assess the impact of elements of the current tax system on the efficiency of financial-economic activities of enterprises. A theoretical analysis of modern trends of tax planning is carried out and it is determined that the existing conditions of operation of enterprises are such phenomena as: digitalization of economic processes, robotization of business processes, influence of other factors of the Fourth Industrial Revolution and growth of uncertainty and level of risks for economic entities. According to the results of the research, it is defined that all these phenomena will affect the process of taxation of enterprises at the micro level due to the acceleration of data processing processes and changes in tax planning objects. The article explains the directions of further research on this topic, namely, the development of an economic-mathematical model of the influence of elements of the tax system in the context of the trends of the Fourth Industrial Revolution, which becomes relevant in modern conditions of tax planning.