We present empirical evidence on gender differences in wage returns on firmspecific experience (job tenure) and general experience. We find that overall returns on an extra year of labor market experience are lower for women than men. However, a decomposition analysis shows that the return on job tenure is substantially lower for women than it is for men, and that the return on general experience is higher for women than it is for men. These findings are consistent with the hypothesis that despite their growing attachment to the labor market, women are less likely to invest in job-specific skills or to self-select into jobs with backloaded compensation because women are more prone to job separations than their male counterparts. The lower estimated returns on tenure for women could also be due to employer discrimination in hiring, and the provision of training and promotion opportunities within firms.