The Republic of Croatia, the Ministry of Finance, the Tax Administration is no exception in the global digitization trend that is transforming all systems. This research paper examines the various digital tools and methodologies that the Ministry of Finance, Tax Administration is integrating into its system to improve efficiency, increase taxpayer satisfaction, and increase revenue collection. Included are the Central Risk Management System (CRMS), Electronic Supervision, Electronic Billing (E-Billing), the Smart Working hybrid work model and Electronic Office Operations, MIN CRMS and Esurveillance use sophisticated algorithms and real-time data to identify risks related to tax obligations and implement remote tax control. E-Collection simplifies the debt collection process, enabling more efficient tax collection. Smart Working enables flexible working conditions, increasing employee satisfaction and productivity. And finally, the purpose of electronic office operations (EUP) is to simplify and digitize administrative tasks and processes within the organization. It aims to improve efficiency, productivity and collaboration by replacing traditional paper-based work processes with digital tools and technologies. This paper concludes that these digital transformations have significantly improved the effectiveness and efficiency of CTA and offers suggestions for further improvement.