This paper proposes a four-dimensional risk index model for designing internal audit programs in the public sector. The model integrates legal, financial, resource, and organizational risks to provide a comprehensive framework for risk-based audit planning. Through simulation involving hypothetical departments, the study demonstrates that aggregate risk scores can mask the diversity and specificity of underlying risk categories. By decomposing audit risk into distinct dimensions, the model enhances audit targeting, supports transparent decision-making, and aligns with international internal audit standards. It also proves particularly useful in environments with limited data availability. The model’s adaptability and clarity make it suitable for both manual and automated audit planning processes. While future enhancements could include dynamic weighting and digital integration, the model as presented already offers a robust and practical approach to prioritizing internal audit activities and improving public sector governance outcomes.

This research examines international experiences in the development of the internal audit system in the public sector. In particular, it analyzes the organization of audit activities in line with international standards, the role of technological integration, and the factors that guarantee auditors’ independence. Drawing on the practical experiences of Malaysia, South Africa, Germany, and other countries, the study highlights the measures taken to enhance the effectiveness of internal audit and their outcomes. Based on this, relevant recommendations have been developed to improve the internal audit system in Uzbekistan. This scientific research contributes to expanding opportunities for transparency in public administration, strengthening financial discipline, and ensuring the rational use of resources.

In the article, a study was conducted on the organization and implementation of the internal audit service in the public sector. Based on the study of the current state of the internal audit organization and foreign experience, suggestions and recommendations were made on the implementation of the internal audit service in different foreign countries and the mechanism of its operation in our republic.