The purpose of this research was to test and obtain empirical evidence that audit quality, independent commissaries, institusional ownership, and audit committee are influential to the cost of capital that is the cost of equity and the cost of debt. The dependent variables of this research were the cost of equity andt the cost of debt, while the independent variables were audit quality, independent commissaries, institusional ownership, and audit committee. This research utilized 52 manufacture companies listed in BEI (Indonesia Stock Exchange) in 2013-2015 as the samples. The sampling technique was purposive sampling. The hypothesis was tested by using double regression test. The test of the first model showed that the audit quality negatively influenced the cost of equity and that the audit committee positively influenced the cost of equity. Moreover, the independent commissaries and institusional ownership did not influence the cost of equity. The test of second model proved that institusional ownership positively influenced the cost of debt. Moreover, the audit quality, independent commissaries, and audit committee did not influence the cost of debt.