Cost of Capital

Finance

Quick Definition

Cost of Capital is the minimum return a company must earn on its investments to satisfy its investors (equity holders and lenders).

Detailed Explanation

Cost of Capital represents the cost of raising funds for a business, whether through equity, debt, or other sources.

It is a critical metric used by companies to evaluate investment decisions—only projects that generate returns higher than the cost of capital are considered worthwhile.

Types of Cost of Capital

  • Cost of Debt: Interest paid on loans or bonds
  • Cost of Equity: Expected return demanded by shareholders
  • Cost of Preference Shares: Dividend cost (if applicable)

Weighted Average Cost of Capital (WACC)

👉 WACC = (E/V × Cost of Equity) + (D/V × Cost of Debt × (1 – Tax Rate))

Where:

  • E = Equity
  • D = Debt
  • V = Total capital

Why Cost of Capital Matters

  • Helps in investment decision-making
  • Used in company valuation
  • Determines financial efficiency

Interpretation

  • High Cost of Capital: Higher risk, expensive funding
  • Low Cost of Capital: Cheaper funding, better efficiency

Example

"If a company raises funds at an average cost of 10%, it must earn more than 10% return to create value."

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