Corporate governance principles in a company consist of fairness, transparency, accountability
and responsibility. Companies with fully implemented corporate governance principles are expected
to reduce costs and increase corporate value. It is believed that increasing corporate value can be achieved
by minimizing the cost of capital. When examined from these aspects, the value of the enterprise
can be increased by reducing capital costs with corporate governance principles in this study, the
relationship between the corporate governance of insurance companies and their capital structures
has been examined. Financial indicators of insurance companies traded in Borsa Istanbul from 2014
to 2021 are used as data. The financial leverage ratio (total debt/total assets) is considered as the dependent
variable and the proportion of foreign members, the proportion of female members, and the
proportion of independent members as dependent variables are considered as independent variables
in the study. Panel regression analysis was applied as the evaluation method, and it was seen that the
ratios of foreign members, independent members and female members positively affected the capital
structure. It has also been observed that the variable that most influences the capital structure is the
proportion of foreign members.