This study aims to test empirically whether accounting information systems, system quality and service quality affect the satisfaction of users of mobile banking-based applications for BCA customers. In this study primary data is used. The sample of this study is customers at BCA Bank who download and use Mobile Banking Based Applications using the Slovin formula method. There are 100 respondents who were studied as research samples. This research uses quantitative methods. The research variables used are accounting information systems, service quality system quality, and user satisfaction. The test used is multiple linear regression analysis using the SPSS version 23.0 application program. The results of this study indicate that accounting information system variables, system quality and service quality significantly influence the satisfaction of users of mobile bankingbased applications for BC customers both partially and simultaneously.