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Abstract
This study aims to analyze the influence of Profitability, Firm Size, Leverage, and Liquidity on Sustainability Report disclosure in companies listed on the LQ45 Index during the 2021–2024 period. The research is motivated by the increasing emphasis on sustainability practices in Indonesia following the implementation of POJK 51/2017, while the level of sustainability reporting among companies remains inconsistent. A quantitative approach using secondary data was applied, obtained from annual reports and sustainability reports of 18 selected companies, resulting in 72 observations. Data analysis was conducted using Fixed Effect regression, selected based on the results of the Chow Test and Hausman Test. The findings reveal that Firm Size and Liquidity have a positive and significant effect on Sustainability Report disclosure, while Profitability and Leverage show no significant influence. Simultaneously, all independent variables significantly affect the disclosure level. These results highlight that company size and liquidity conditions are key factors driving sustainability transparency among LQ45 companies.