Harmonisation of Business and Tax Accounting - the Basis of Efficient Control of Expenditures in the Context of Taxation

The goal of the article is formulation and justification of directions of harmonisation of business and tax accounting with the purpose of optimisation of the process of control of expenditures in the context of taxation. Having analysed, systemised and generalised achievements of the researchers that dealt with the problems of harmonisation of tax and business accounting of expenditures, the article considers existing problems of practical and theoretical character connected with control of expenditures in the context of taxation. In the result of the study the article specifies directions of harmonisation of tax and business accounting of expenditures, namely: it reveals problems with discrepancy between acceptance of expenditures in business and tax accounting; its conducts comparison of cost structures, which are formed in the business and tax accounting in the context of taxation; it reveals discrepancies in the concept mechanism approved by regulatory acts of the business and tax accounting; it points out a necessity of correcting the system of registers, intended for accounting and control of expenditures, with the aim to optimise and increase the control level. In the result of the conducted study the article offers: in order to harmonise and identify the existing tax base - to approve at the legislative level and for practical use the unifying notion "cost of finished / sold products (goods, works or services)"; in order to avoid appearance of "tax differences" - to integrate Tax Code of Ukraine, National Provisions (Standard) of Accounting into a uniform regulatory act; in order to optimise and increase the level of control of expenditures - to identify variants of optimisation of the system of registers intended for business accounting and tax control.