Innovative Evolution of Ukraine's Payment Banking Systems in the Digital Economy

Abstract

The article examines the development of Ukraine’s banking payment systems in the context of digital transformation and the integration of international fintech platforms. The study aims to assess the current state of the national payment infrastructure, to identify the key technological trends shaping its modernization, and to analyze the impact of international payment services on the banking sector. The methodological framework is based on systemic and institutional approaches, comparative analysis, the generalization of statistical data provided by the regulator, and elements of risk-oriented assessment. The paper identifies trends in the expansion of mobile and contactless payments, tokenization, biometric authentication, and the application of artificial intelligence algorithms in financial services. It substantiates the influence of international platforms on the competitive structure of the banking market, fee policies, and foreign currency inflows. An integral indicator for assessing the transformational impact of international payment platforms on the banking system is proposed, and the risks associated with their integration are systematised according to the criteria of probability and consequences. The ambivalent nature of the impact of international services is demonstrated: while they enhance competition and accelerate digitalization, they also generate regulatory and institutional risks to financial stability. The findings provide a foundation for further academic research aimed at refining methodologies for the quantitative measurement of fintech integration effects, expanding the toolkit for assessing digitalisation risks, and deepening the analysis of the long-term implications of integrating international services for the financial stability and competitiveness of Ukraine’s banking system. Furthermore, the developed methodological approach enables cross-country comparative studies, the modelling of payment infrastructure development scenarios under conditions of intensifying global financial integration, and the evaluation of the adaptability of the national regulatory environment to emerging digital challenges.