Rapid digital transformation in various sectors has changed how individuals interact with technology, including in essential services such as fuel purchases. While the MyPertamina app promises to revolutionize access to subsidized fuel, its adoption has fallen short of expectations, raising curiosity about the underlying factors influencing user uptake. This study aims to explore the factors that influence the adoption of the MyPertamina application using the Unified Theory of Acceptance and Use of Technology (UTAUT) framework. The methodology used is a quantitative approach through distributing questionnaires to MyPertamina users. The analysis results showed a significant relationship between performance expectations, government regulations, and the reliability of institutional sources on behavioral intentions and adoption. However, factors such as effort expectancy, awareness, perceived financial cost, technological infrastructure support, government regulation and institutional privacy concerns did not show a significant impact towards behavioral intention and adoption. The findings highlight the importance of improving user perceptions of the app’s performance and ensuring the reliability of institutional sources for increase behavioral intention and adoption. Additionally, refining regulatory and enhancing app features for a smoother refueling experience are crucial in encouraging broader usage. By addressing these factors, stakeholders can implement more effective strategies to increase the adoption.