摘要:The aim of this paper is to investigate transparency report (TR) disclosure and determinants of TR delay, using Croatian listed companies and audit firms who audited Croatian listed companies in 2015. TR disclosure is measured using the TR index whereas the TR delay is measured as the number of days between the financial year-end and the publication date of the TR by an audit firms. We first analyzed the position and difference between audit firm indicators and types of audit firm using the following: number of certified auditors, number of employees, average net salary, total revenue, net profit, net working capital, total assets, total capital and financial ratio. Second, we used the TR index to determine the existence of TR elements and whether the audit firm made a disclosure. Finally, we used multiple regressions for modelling the TR delay as a function of the following variables: number of certified auditors, number of audits per year, return on assets and the TR index. Our results indicate that based on the TR index only 32% audit firms are transparent. Furthermore, the TR delay is shorter when audit firms have a greater number of certified auditors and a higher TR index, i.e. when audit firms incorporate more elements into the TR.