The aim of this study is to find the model of capital structure influencing a firm’s performance. The capital structure is proxied by Short Term Debt to Total Assets Ratio, Long Term Debt to Total Assets Ratio, Total Debt to Total Assets Ratio, Short Term Debt to Total Equity Ratio, Long Term Debt to Total Equity Ratio, and Total Debt to Total Equity Ratio. The firm’s performance is measured by the Gross Profit Margin, the Net Profit Margin, the Return on Assets, the Return on Equity, the Current Ratio, the Quick Ratio, the Sales Growth, and lastly, the Stock Price. The result of the regression analysis shows that the Short Term Debt to Total Assets Ratio and the Long Term Debt to Total Assets Ratio are the best indicators of capital structure which significantly influence the firm's performance, as measured by the Current Ratio.