This article analyzes the model of revenue sharing between capital owners (shahibul maal) and managers (mudharib) in the context of managing Islamic educational institutions in Indonesia. This study explores the implementation of sharia economic principles, especially mudharabah and musharakah contracts, in the financial governance of Islamic educational institutions. Research shows that the implementation of a sharia-based revenue-sharing model can improve the transparency, fairness, and financial sustainability of Islamic educational institutions. However, its implementation still faces challenges in the form of limited understanding of the concept of sharia economics, confusion in cooperation agreements, and lack of standardization of the revenue-sharing mechanism. This article offers recommendations for the development of a fairer and more sustainable outcome-sharing model for Islamic educational institutions in Indonesia.