The convenience experienced by youth in accessing online services has an impact on their shopping behaviour. The child tends to be excessive in buying the things they want. This consumptive behaviour can be influenced by several things, one of which is self-esteem. Some previous studies have shown inconsistent results in explaining the effect of self-esteem on consumptive behaviour. This study aims to determine the influence of self-esteem on consumptive behaviour in adolescent pay-later users. The method used in this study is a quantitative method with 150 respondents, 100 female and 50 male, aged 18-21 years old male and female who live in Jakarta. The data collection technique used was purposive sampling using the self-esteem scale from Rosenberg, which has been adopted by Maroqi to measure self-esteem and the consumptive behaviour scale. The data analysis technique used is a simple regression test. The results obtained in this study are the B coefficient value of 0.022 with a probability value of 0.023, which indicates that there is a positive influence between self-esteem and consumptive behaviour. This means that the higher the self-esteem possessed by youth, the higher the consumptive behaviour. Based on the regression in this study, it was found that the R Square value was 0,035 with a significant level of 0,023. This shows that self-esteem has an effect on consumptive behaviour by 3,5%.