In an era that increasingly prioritizes transparency and social accountability, disclosure of Corporate Social Responsibility (CSR) has become an integral part of corporate strategy, including in Islamic banking. CSR is not only related to economic aspects, but must also reflect social, ethical, and sustainability values that are in line with Islamic sharia principles. In Indonesia, Islamic banking is expected to focus not only on profitability but also on the social impact generated from their business activities, which is reflected in CSR disclosure. The purpose of this study was to analyze the implementation of corporate social responsibility (CSR) as measured by the ISR index in Islamic banks in Indonesia using the content analysis method. The population and sample used include the financial statements of Bank Mega Syariah, Bank Syariah Indonesia, and Bank Muamalat Indonesia in 2022-2023. The results of the study show that not all Islamic banks including BMS, BSI and BMI disclose ISR formatively. Only Bank Syariah and Bank Muamalat Indonesia disclose ISR informatively. Bank Mega Syariah does not disclose ISR formatively.