Introduction Sustainable development is considered one of the most important economic approaches adopted by countries seeking to achieve balanced growth that ensures the use of current resources without compromising the ability of Al-Mustaqbal generations to meet their needs. In the case of Iraq, sustainable development holds exceptional importance due to the nature of the Iraqi economy, which relies heavily on oil revenues. This makes public finances vulnerable to fluctuations resulting from changes in global oil prices and economic crises. Building a resilient and sustainable Iraqi economy requires a shift from reliance on a single source of public revenue to a more diversified economic model. This model depends on developing productive sectors, stimulating investment, strengthening the role of the private sector, and enhancing human capital, all of which contribute to increasing public revenues sustainably and achieving long-term financial stability. Sustainable Development and Diversification of Public Revenue Sources One of the most significant contributions of sustainable development lies in its ability to restructure the national economy and diversify sources of public income. Heavy reliance on oil revenues ties Iraq’s general budget directly to global market fluctuations, whereas developing sectors such as agriculture, industry, tourism, renewable energy, and digital services can provide new sources of public revenue. Developing non-oil sectors not only increases GDP but also expands the tax base, raises state revenues through the growth of formal economic activity, improves the efficiency of tax and customs collection, and reduces dependence on rent-based revenues. Sustainable Investment as a Driver of Revenue Growth Investment in sustainable development projects represents a key driver for increasing public revenues. Productive projects and modern infrastructure contribute to job creation, increased production levels, and the stimulation of economic activity. Improving the investment environment and attracting both domestic and foreign investments can also enhance Iraq’s capacity to generate added value. For example, investment in renewable energy, manufacturing industries, technology, and modern agriculture not only achieves direct economic benefits but also reduces Al-Mustaqbal government expenditures by improving resource efficiency and enhancing the management of public services. Good Governance and Its Role in Enhancing Revenues Sustainable development cannot be achieved without effective economic and administrative institutions that adopt principles of governance, transparency, and accountability. Improving public financial management, combating waste and corruption, and developing digital systems within government institutions all contribute to increasing revenue collection efficiency and reducing financial losses. Digital transformation in financial and tax administration can also help expand the taxpayer base, improve monitoring of economic activities, and increase non-oil revenues, thereby strengthening the state’s ability to fund development programs and public services. Human Development as the Foundation of a Sustainable Economy Human capital development is a fundamental element in building an economy capable of generating sustainable revenues. Education, vocational training, and the development of digital skills enhance workforce productivity, promote innovation, and create new knowledge-based economic sectors. In light of global economic transformations, investment in people has become just as important as investment in natural resources, as modern economies increasingly rely on knowledge and technology as primary sources of growth and revenue. Towards a More Resilient and Sustainable Iraqi Economy Achieving a resilient and sustainable Iraqi economy requires adopting a long-term strategic vision that links sustainable development goals with fiscal and economic policies. Increasing public revenues should not depend solely on rising oil prices or increased oil production but should be the natural result of diversified and productive economic growth. Thus, sustainable development represents an opportunity to rebuild the Iraqi economy on stronger foundations by strengthening productive sectors, encouraging innovation, improving resource management, and achieving a balance between economic growth and the preservation of resources for Al-Mustaqbal generations. Conclusion The relationship between sustainable development and public revenues is complementary; the more Iraq succeeds in implementing sustainable development policies, the greater its ability to achieve stable and diversified revenues and gradually move away from the risks of a rentier economy. Therefore, adopting sustainable development is not merely an economic option but a strategic path toward building a state that is better equipped to face challenges and achieve economic and social well-being for its citizens.