An MNC has total assets of 100 million and debt of 20...

An MNC has total assets of $\$ 100$ million and debt of $\$ 20$ million. The firm's before-tax cost of debt is 12 percent, and its cost of financing with equity is 15 percent. The $\mathrm{MNC}$ has a corporate tax rate of 40 percent. What is this firm's cost of capital?

Key Concepts

Corporate Tax Shield

The corporate tax shield is a benefit derived from the tax-deductibility of interest expenses on debt. This benefit effectively lowers the cost of debt financing because the tax savings reduce the company’s overall tax burden, an important factor when calculating the after-tax cost of debt.

Capital Structure

Capital structure pertains to the mix of debt and equity financing used by a company to fund its operations and growth. The relative weights of debt and equity influence the company's risk profile and its cost of capital, and optimizing this mix is key for maximizing value.

Cost of Debt

The cost of debt is the effective rate that a company pays on its borrowed funds. This rate often takes the form of an interest rate on loans or bonds and is typically adjusted for the tax deductibility of interest expenses, meaning it is calculated as the before-tax cost multiplied by (1 - tax rate).

Weighted Average Cost of Capital (WACC)

WACC is a key financial metric that represents the overall required return on a firm’s assets, weighted according to the proportion of each financing source (debt and equity) in the firm's capital structure. It is used to make investment decisions and evaluate the efficiency of the company's financing strategy.

Cost of Equity

Cost of equity refers to the return that investors require for investing in a company’s equity. This return compensates investors for the risk inherent in holding equity rather than a risk-free asset and is usually estimated through models such as the Capital Asset Pricing Model (CAPM).

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