It is widely acknowledged that internal audits should have a value-adding component for all types of companies. This study systematically investigated the effect of internal audit function on the market value of public listed companies in Indonesia. The panel data technique used was based on the data extracted from 44 listed companies over five years (2015 -2021), with 308 observations. The empirical results revealed the Percent Audit Committee (PAC) has a significant and positive impact on market value. The Number of Certified Members (NCM) has no significant effect on market value, while the Percentage of Implemented Findings (PIF) has a significant and positive impact on the market value of companies. Size, leverage, and return on investment (ROI) have a significant impact on the market value of companies. The study offers extended implications in the empirical literature using a different measure of internal audit function characteristics from an emerging market perspective for different organisations. This study provides important implications for investors, managers, researchers, and auditors. Finally, the results of this research may be used by analysts, investors, and other strategic decision-makers in Indonesia to enhance the competitiveness and viability of the country's financial market. The findings will encourage policymakers to enact effective regulations, which could boost Indonesia's financial markets' efficiency and performance.
