The article aims to determine the relationship between the Indonesian state and the Islamic economy related to the influence of the Indonesian government's Islamic political economy in the development of sharia economic practices in society, especially in the reform era. The research method used in this study is a qualitative approach with the type of library research. The data sources used are secondary data sources, obtained from the collection of documentation related to the development of Islamic economic politics in Islamic banking in the reform era in Indonesia. The data that has been collected is analyzed through content analysis and the validity of the data is checked through triangulation of secondary data sources. This article uses the political theory of Islamic economics in the reform era and the theory of the development of sharia banking regulations by Dr. Itang, M.Ag. This article finds that the influence of the State of Indonesia with its political economy oriented to the Islamic economic system in developing Islamic economic practices is very significant. This also shows that there is a rapid progress in the practice of Islamic economics, especially in the field of Islamic banking, which is increasingly attracting the whole community to invest in Islamic banking because the formal regulations are very clearly stated in the Act. In addition, the development of Islamic political economy has also greatly influenced the development of other non-banking Islamic financial institutions, such as sharia insurance, sharia capital markets, sharia bonds, sharia mutual funds, and Islamic microfinance institutions, and Islamic public finance after the Indonesian state supported them in many things, especially through formal regulation.

The application of Profit Equalization as an effort to mitigate the risk of returns on Islamic financial institutions, especially Islamic banking is still being a question for practitioners and academics, some groups support and some groups criticize, so this research aims to examine the application of the Profit Equalization Reserve (PER) as an effort to mitigate the risk of returns in Islamic banking perspective of third main principle,  namely الْمَشَقَّةُ تَجْلِبُ التَّيْسِيْرِ, Method in this study is a qualitative method with secondary data processing taken from literatures which related to PER management. This research shows that the risk of returns is masyaqqoh al 'azimmah, which is a serious difficulty and can affect the continuity of the Islamic banks activities. So, rukhshoh is needed which in this problem is the application of income smoothing without mitigation or with mitigation (PER), PER in this case is Takhfif Taqdim which is, risk mitigation efforts before they arise. The result of this research is that PER application is permissible and legitimate as long as it does not violate the Shari'a and Islamic economic principles, meaning that all of reports and information must be conveyed clearly to customers so as to avoid gharar elements.