In this paper, improvement of fiscal control through the introduction of administrative and economic innovations in the monitoring work of tax authorities is reviewed. A management novation is being formed, which contains the composition of tax audit management tools, it allows to create control mechanism for the actions of tax authorities, including innovative control procedures. In the framework of economic novation, an economic-mathematical model of multi-factor regression of the effectiveness assessment of field inspection is created, which allows formalizing the procedure of estimation and level of expert subjectivity of perception. In model construction, the most significant stand out factors which have a serious impact on the effecti...