Анна Іванова, О.І. Вацлавський
The article examines the theoretical and practical foundations of tax management transformation in the digital economy. It analyses the impact of digitalisation, platform business models, electronic commerce, digital financial services, and virtual assets on the evolution of tax administration. Particular attention is paid to international digital taxation mechanisms, including the OECD/G20 BEPS Project, the Two-Pillar Solution, Digital Services Tax, and the DAC7 Directive, which are shaping a new architecture of global tax governance. The transformation of the digital economy is considered as a factor that requires a shift from traditional tax administration towards a more adaptive, technology-driven, and internationally coordinated model of tax management. The growing mobility of digital business activities and cross-border financial flows further increases the importance of integrated approaches to tax information, risk management, and fiscal regulation. The study substantiates the growing role of fiscal innovations and advanced digital technologies, including Big Data, Artificial Intelligence, Blockchain, Cloud Technologies, Predictive Analytics, and integrated digital platforms, in improving tax administration, strengthening risk-oriented control, enhancing tax transparency, and supporting data-driven decision-making within the Smart Tax Administration framework. The current stage of digital transformation of Ukraine's tax management system is analysed through the implementation of the taxation mechanism for electronic services supplied by non-residents ("Google Tax"), the development of the Diia City legal regime, and the expansion of digital services provided by the State Tax Service of Ukraine. The paper identifies the main institutional and technological challenges of digital tax management and proposes strategic priorities for its further development based on international tax transparency standards, digital integration, and modern information technologies. Particular emphasis is placed on the need to combine technological modernisation with regulatory adaptation and institutional capacity building in order to ensure the coherence of Ukraine's tax system with the evolving global digital tax environment. The implementation of these approaches will contribute to increasing the efficiency of tax administration, expanding the tax base, strengthening fiscal sustainability, and ensuring the successful integration of Ukraine into the global digital tax environment.