This study aims to examine the effect of financial technology, financial literacy, and financial behavior on an investor’s investment decisions. The sample in this study is someone who has invested in the capital market at least once and lives in the city of Jakarta. The sample was taken using purposive sampling and obtained from 180 respondents. Data analysis uses SmartPLS3 through an outer, inner model, and hypothesis testing. The external and internal models show the results of all valid research instruments, and reliable and appropriate models are used to explain the dependent variable. The results show that financial technology, financial literacy, and financial behavior positively and significantly impact investment decisions.