The process of using technological advances to change different facets of business, industry, and life is known as “digitalization.” It entails incorporating digital technologiesTechnology into routine tasks and then changing those tasks to increase productivity, efficiency, and creativity. The creation, management, and study of capital, investments, and other financial resources fall under the vast umbrella of finance. The process of digitalizing finance includes using technologiesTechnology like cloud computing, blockchain, AI, mobile applications, online banking websites, and big data analytics to enhance the speed, availability, efficiency, security, and accessibility of financial operations. The transition to digital finance has brought about substantial transformations in the procedures that people can handle their finances, interact with financial institutions, and obtain financial services. Digitalization has increased transparency, accessibility of income. Digitalization has shifted paper currency to paperless digital currency. All these have come up on digital platform and hence resulted in more of income tax return and more of tax revenue decline in non-traceable or hidden income. Sustainable DiFi alludes to the integration of online financial technologiesTechnology with sustainabilitySustainability principles to support economic activities that are environmentally, socially, and economically viable. This strategy takes advantage of technological advancement to mobilize, manage, and distribute financial resources in ways that support sustainable developmentSustainable development goals (SDGsSDGs), mitigate climate changesClimate change, and promote environmental conservation. This paper emphasizes the relationship between digitalization and income in the Indian economy using several variables like GINI coefficient, digital payment transactions, GDP indicator, FDI, Direct and Indirect tax, etc. This study focuses on the transformation brought about by digitalization and how it narrowed income gap and helped in economic growthEconomic growth. Based on the variable’s secondary data, the study shows the implication of DiFi on growth of Indian citizen income as there are decline in Gini, increase in digital payment transactions, increase in tax revenue of Government. Furthermore, the implications of digitalization of finance for expansion of Indian economy as a whole.