Finding the variables determining the degree of voluntary disclosure in the annual reports of banking companies listed on the IDX between 2018 and 2020 is the aim of this study. A total of forty-two banks were chosen using a purposive sampling technique. The data was assessed using multiple linear regression. The study discovered that firm size had no effect on voluntary disclosure at a significance threshold of 0.010, which is closer to the usual criterion of 0.05. However, listing age and foreign ownership had a substantial impact on voluntary disclosure (p = 0.000, <0.05).
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