Women in political office outperform men in legislative activity and constituent services. Scholars have identified two potential explanations for this overperformance: women are higher quality candidates when they run for office and women face elevated voter expectations to win elections. We use the presence of term limits to examine how these two justifications for women's overperformance produce downstream effects. While designed to strike a blow to entrenched systems of power, term limits reduce the time that legislators spend on constituent service and legislative output, including bill sponsorship, votes, and committee work. We use the effects of term limits as a tool for understanding the two paths to women's overperformance, using data on over 6000 legislators serving in term‐limited states. We find more evidence for the quality candidate hypothesis than the voter expectations hypothesis. While term limits degrade men's performance in office, women officeholders continue to overperform even under this institutional constraint. Our findings that women's overperformance is more likely due to their higher quality have implications for efforts to increase the representativeness of political bodies, the quality of representation in state legislatures, and the gendered consequences of institutional reforms.