The teacher shortage in Indonesia highlights the importance of sustaining motivation within the country’s education workforce. Using quantitative methods, the study examined the factors that influence teachers’ motivation to stay in the profession. The findings showed that the majority of Indonesian respondents are highly motivated to keep teaching. This is reflected in their favorable perceptions of the core and contributing motivational factors investigated in the research. Inferential statistics also revealed that the length of teaching, instructional hours, use of personal money for professional development, total grade levels taught, and hours spent traveling have associations with motivation levels. Test of difference in means showed statistically significant differences in the means according to frequency of salary increase, provision of teaching and learning resources, availability of school facilities, highest educational attainment, history of promotion, and frequency of promotion. Using hierarchical regression analysis, the study constructed a model to predict teacher motivation to remain in their profession, integrating both motivational factors, demographic characteristics and work-related variables. Several policy suggestions to address the findings were also offered.