Abstract
The importance of the research lies in identifying the extent of the impact of taxes on monetary policy represented by money supply in the narrow sense as well as the evolution of tax revenue trends as a percentage of GDP and money supply in the narrow sense as a percentage of Gdp in Iraq for the period 1990-2020. The first topic dealt with the theoretical framework and the reference review of the research, while the second dealt with the tests of the model based on the Eviews12 software package, The results of the research showed the existence of a long-term co-integration relationship that shows the fiscal policy index and the narrow money supply in the State of Iraq. When the ratio of the narrow money supply to GDP deviates during the short term, it corrects by (136 percent) of this deviation per year, that is, the supply of Tight cash takes about eight months to reach its equilibrium value. The researcher recommended the necessity of conducting statistical studies and analyzing tax revenues in each activity of the General Tax Authority’s departments, studying the reasons for the lack of tax revenues in some departments, and developing the necessary treatments and solutions to improve their tax revenues.
