The article deals with the analysis of relationships between tax competition and entrepreneurship development in Eastern European and Baltic countries during 2006-2017. Incomplete nature of tax systems reforming in these countries forms preconditions for their participation in cross-country tax competition in investment flows reallocation. The main instrument of the tax competition includes tax rates, which are defined by convergence tendencies in the studied countries. Other factors of the research are tax burden levels on the enterprise, tax administration indices and macroeconomic indicators. The entrepreneurship development at the country’s level is characterized by a number of new businesses, the duration of their life cycle and their ...