Microfinance is a dominant strategy used to promote rural development around the world. Rather than directly track its impact on borrowers, however, microfinance institutions rely on indicators of financial performance adopted from commercial banking as proxies for positive social impact. Yet, as critical research has shown, the industry depends on coercive peer pressure, social shaming and various forms of gendered exploitation to achieve its high rates of loan repayment. This article maintains that there is a need to investigate how the microfinance industry's own indicators of impact contribute to the ways microfinance can harm borrowers. Based on qualitative research in Cambodia during 2021 and 2022, the article demonstrates how financial performance indicators, most notably portfolio quality, both hide and exacerbate the ways that borrowers juggle debt between formal and informal lenders. In making this argument, the article advances critical scholarship on microfinance by showing how microfinance repayment structures debt‐juggling practices in ways that put borrowers at greater risk of over‐indebtedness. As a result, the microfinance industry is able to claim that it successfully helps to alleviate poverty, even as it accumulates profits by appropriating wealth from poor and low‐income households across the global South.