The paper aims at disclosing the nature of offshore tools used for the withdrawal of capital from Ukraine, as well as suggesting measures to be undertaken by Ukrainian authorities to improve the current situation. The authors apply comparative analysis to find the data discrepancy between State Statistics Service of Ukraine and Eurostat on export-import operations between Ukraine and the EU to determine the volumes of tax evasion and avoidance in Ukraine. The article states that dynamic internationalization of financial and economic operations of Ukrainian business entities in recent decades had negative effects on national welfare due to their maneuvering of capital between affiliated units via transfer pricing and intensifying their offshorization using transborder movement of commodities, services, and factors of production resulting in the reduction of budget tax revenues, increasing the scale of cross-border outflow of capital, strengthening the strategic control of foreign countries over the production facilities of Ukraine, as well as significantly undermining national tax security, macroeconomic and social balance. Thus, Ukrainian regulatory bodies must take measures aimed at deoffshorization of business activities, structural modernization of the national economy, dynamization of macroeconomic growth, regulation of inflation and increasing the volume of foreign direct investments in Ukraine.