Resumen
Summarizing the results of theoretical and empirical research, the paper aims to analyze the impact of tax system on global competitiveness through the following three variables: taxation on incentives to invest; total tax rate and taxation on incentives to work. Summarizing the analysis to the European Union member states, the paper presents rankings and provides interpretations for each case. Luxembourg is the country where there is registered: a) the biggest impact on competitiveness of tax policies supporting investment, b) the largest fiscal affordability (measured by GDP/capita and total tax rate) and c) the most generous labor taxation system in the EU. However, in the ranking realized based on the global competitiveness index Luxembourg ranks on the 22nd place, on the first place being Finland.