Wize University Introduction to Finance Textbook > Cost of Capital
Weighted-Average Cost of Capital
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The Weighted-Average Cost of Capital
Cost of Capital
- The weighted average cost of debt and equity.
- This includes bonds, other long-term debt, common equity, and preferred equity.
- The more capital that is raised through a specific channel, the most significant the cost of that channel will be to the average.
- Weights are based on the market values of debt and equity.
- Represents the average cost of every dollar of capital a firm controls.
Capital Structure
- The proportion of a company's capital (assets) that is financed through debt and equity.
- Typically measured using the debt-to-equity ratio
- Changes to capital structure affect a firm's cost of capital when the cost of debt and equity are different.
Weighted-Average Cost of Capital Formula

Formula Break-Down
- RI: After-tax cost of debt
- RP: Cost of preferred equity
- RE: Cost of common equity
- D: Market value of debt
- P: Market value of preferred shares
- E: Market value of common shares

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Example: Cost of Capital
ABC Inc. has a debt-to-equity ratio is 60%. The company's cost of debt is 7% and its the cost of equity is 12%. What is the weighted average cost of capital if the company is subject to a 35% tax rate?
Practice: Weighted-Average Cost of Capital
The debt-to-equity ratio for XYZ Corporation is 120%. The cost of debt is 8% and the beta of the company's stock is 1.2. What is the weighted-average cost of capital if the risk free rate is 3%, the market's expected return is 10% and the tax rate is 40%?
Round your final answer to 2 decimal places and enter a percentage.
Example: Cost of Capital
You have obtained the following information on the ABC Inc.
- Book values: assets = $250,000; common equity = $25,000; preferred stock = $150,000 and debt = $75,000. Coupons on debt are paid once a year.
- Number of shares outstanding: 10,000 common and 25,000 preferred
- Market prices per share: common stock $25, preferred $10
- Preferred dividend $1.00 per share; coupon rate on debt is 8%; ABC does not pay dividends on its common stock
- Beta of the stock is 1.25
- Yield to maturity of debt is equal to the coupon rate
- Tax rate is 35%, risk free rate is 2%, and expected return on the market is 15%.
Calculate the weighted average cost of capital (WACC) or the ABC Inc.
Practice: Cost of Capital
- XYZ Corp. as 100,000 15-year 10% annual coupon bonds that were issued 6 years ago. The current YTM on the bonds is 7%.
- XYZ Corp. also has 10,000,000 outstanding common shares with a beta of 1.2, the common shareholders expect to receive a dividend of $2 next year and 5% more per year indefinitely.
- The company also has 500,000 outstanding preferred shares with a dividend rate of 4%, the preferred shares are currently trading at 92% of par value.
- The standard deviation of the TSX returns is 19%, the expected Return on the market portfolio is 9%, T-bills are yielding 5% and the company's tax rate is 40%.
What is the WACC?
Round your final answer to 2 decimal places and enter a percentage.
| The WACC is | % |