Until now, taxes are still the main instrument in fiscal policy in Indonesia. Meanwhile, zakat, which has considerable potential, has not yet become an instrument of fiscal policy. Maximization and efficiency can be achieved if the synergy of zakat and taxes is maximized. This study, it will examine how the synergy of zakat and taxes is when viewed from the objectives of fiscal policy, namely maintaining stability and developing the country's economy, improving the quality of human resources, maintaining price stability, and increasing investment. Qualitative methods were used in this study and library research as an exploratory approach and study. The results of this study are: First, the synergy of zakat and taxes can complement each other and can help achieve fiscal policy goals, and can reduce the risk of problems that can come at any time, such as inflation and economic recession. Second, zakat and taxes both have the same potential and can synergize together in helping achieve fiscal policy goals.