The article suggests revised methodology of evaluation of the tax relieves' efficiency adequate to the conditions of
relieves granting in the Russian Federation. The issues of functioning of tax relieves are closely connected with the
problem of enhancement of the methodology of their efficiency evaluation. In that case, when the relief has no
social return or it is economically inefficient, such relief cannot fully perform its role as the most mobile tool of
fiscal regulation. Besides, inefficient tax relieves result not only in direct shortfall in budget revenues, but also to
such phenomena as decrease in competitiveness of goods (works, services) and in market motivation of
economic entities, which do not use tax relieves; to slowdown of the rates of economic growth, to strengthening
of social inequality and tensions in the society, etc. Monitoring of the stimulating mechanisms' efficiency is
necessary for optimization of the effective tax relieves, and this is one of the important tasks designated in the
Basic Concepts of the Tax Policy of the Russian Federation (BCTP) for 2013-2015 and then transferred into the
BCTP for 2014-2016.