This paper focuses on the growing importance of digital payment systems in facilitating the evolution of contemporary economies through increased efficiency and transparency in transactions as well as greater financial inclusiveness. Moreover, the comparison of the adoption and consequences of digital payments in advanced economies and EMDEs is analyzed. The development of technologies such as artificial intelligence and the Internet of Things contributes to increased efficiency, reliability, and safety of payments while posing threats that must be addressed. The paper considers the economic implications of digital payment systems, paying particular attention to their development in EMDEs, where the use of digital payments has been growing rapidly since 2014. In EMDEs, the percentage of adults using digital payments grew dramatically from 2014 to 2021. This paper considers the link between digital payment adoption and economic development by analyzing GDP per capita, total factor productivity, and employment in the informal economy. The paper also considers the role of central banks in fostering digital financial systems by providing efficient payment infrastructure and inclusive monetary policies. Overall, the study investigates whether digital payments have supported financial inclusion, economic modernization, and sustainable economic growth.