The main problem examined in the current article is the evaluation of tax system. It is suggested that tax systems should be evaluated through the hierarchical evaluation system consisting of primary, partially-integrated and complex-integrated indicators. Primary non-recurrent indicators are classified into three groups and aimed at evaluating a tax system through the prism of a certain aspect. The system is built taking into consideration the requirements of consistency, comparability and simplicity, and aimed at objective and accurate evaluation of tax systems. The synthesis of partially integrated indicators creates preconditions for complex evaluation of tax systems enabling identification of the quality of tax systems and comparison o...