The purpose of this study is to determine the effect of mudharabah financing, musyarakah financing, murabahah financing, and ijarah financing on net income at Islamic Bank in Indonesia. The sample in this study used Islamic Banks in Indonesia which include Bank Muamalat Indonesia, Bank BRI Syariah, Bank BNI Syariah, Bank Syariah Mandiri, Bank Bukopin Syariah, and Bank BCA Syariah. This research used multiple regression. The result of this study showed that mudharabah financing, murabahah financing, and ijarah financing has a significant positive effect on net income. While musyarakah financing has a significant negative effect on net income at Islamic Bank in Indonesia.