Operational and financial sustainability have, over time, remained as issues in the microfinance industry. The microfinance industry is struggling to gain self-sufficiency in Pakistan due to non-performing loans and operating costs. Simultaneously, deliberation on corporate social responsibility is also considered in academic literature and organizational practices. However, studies on CSR and financial performance in the microfinance sector are scarce, especially in Pakistan. CSR will develop customer attraction and loyalty, employee attraction, motivation and commitment, MFIs' reputation and access to capital, and (...) eventually build financial performance. Interviews were conducted with branch managers of microfinance institutions to test previous questionnaires. A self-administered survey was conducted to collect data from the managers of the microfinance banks operating in Punjab. Descriptive and inferential statistics were performed to answer research questions using Smart PLS. Most of the microfinance institutions believe in social responsibilities but lacks fund allocation and approval from higher management, and results are in line with prior studies. These empirical findings lead to the perception that CSR is not a barrier performance in microfinance banks as they have access to capital. The results indicated a strong positive correlation between CSR and the financial performance of the MFIs. CSR also positively correlates with customer retention, employees' motivation and attraction, and business reputation. CSR was associated with access to capital but was found to be weak. The research also narrated the limitation and practical implications of the study. The study also discusses further research directions. (shrink)