This article examines the role and significance of taxes in the formation of state budget revenues. Taxes are considered the primary source of government income, ensuring the financial stability and effective functioning of public institutions. The study analyzes the structure of tax revenues, their share in the state budget, and their impact on macroeconomic stability and economic growth. Special attention is given to the tax system reforms implemented in developing economies, including Uzbekistan, and their role in increasing budget revenues. The research also highlights the importance of improving tax administration, expanding the tax base, and ensuring transparency in tax collection processes. Based on the analysis, practical recommendations are proposed to enhance the efficiency of tax policy and strengthen the revenue potential of the state budget.