WACC Calculator (Using Levered Beta)
A specialized tool to determine the Weighted Average Cost of Capital based on key financial metrics including levered beta.
The volatility of the stock including its financial leverage. Unitless.
Typically the yield on a long-term government bond.
The expected annual return of the stock market (e.g., S&P 500).
The interest rate the company pays on its debt before tax deductions.
The company’s effective corporate tax rate.
The total market capitalization of the company’s stock.
The total market value of the company’s short-term and long-term debt.
WACC Composition
WACC Sensitivity Analysis
| Levered Beta (β) | Cost of Debt (%) | Calculated WACC (%) |
|---|
What is WACC and Levered Beta?
The Weighted Average Cost of Capital (WACC) is a critical financial metric representing a company’s blended cost of capital across all its sources, including equity and debt. It is the average rate a company is expected to pay to finance its assets. WACC is a key component in corporate finance, often used as the discount rate in discounted cash flow (DCF) analysis to determine a company’s net present value. To accurately calculate WACC using levered beta, one must first determine the cost of equity, a process where levered beta plays a pivotal role.
Levered Beta (or Equity Beta) measures the volatility—or systematic risk—of a stock in relation to the market, while also accounting for the impact of the company’s capital structure (i.e., its debt). A higher levered beta indicates greater volatility and risk. It is “levered” because the company’s debt amplifies the underlying business risk for equity shareholders. This is the beta typically reported on financial data platforms and is essential for the Capital Asset Pricing Model (CAPM), which is used to calculate the cost of equity.
The WACC Formula Using Levered Beta
The calculation is a two-step process. First, we determine the Cost of Equity (Re) using the CAPM, which directly incorporates levered beta. Second, we input this into the main WACC formula.
1. Cost of Equity (Re) Formula (CAPM)
Re = Rf + β * (Rm - Rf)
Where:
- Re = Cost of Equity
- Rf = Risk-Free Rate
- β (Beta) = Levered Beta of the stock
- (Rm – Rf) = Equity Market Risk Premium
2. WACC Formula
WACC = (E/V * Re) + (D/V * Rd * (1 - T))
Where:
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| E | Market Value of Equity | Currency | Varies |
| D | Market Value of Debt | Currency | Varies |
| V | Total Market Value of Capital (E + D) | Currency | Varies |
| Re | Cost of Equity (from CAPM) | Percentage | 5% – 20% |
| Rd | Pre-Tax Cost of Debt | Percentage | 3% – 9% |
| T | Corporate Tax Rate | Percentage | 15% – 35% |
| β | Levered Beta | Unitless | 0.5 – 2.5 |
For more detail on valuation, consider our guide on DCF valuation model.
Practical Examples of Calculating WACC
Example 1: Stable Utility Company
Imagine a large, stable utility company with predictable cash flows.
- Inputs: Levered Beta (β) = 0.8, Risk-Free Rate = 3.0%, Market Return = 8.0%, Cost of Debt = 4.5%, Tax Rate = 25%, Market Value of Equity = $20B, Market Value of Debt = $10B.
- Cost of Equity (Re) Calculation: 3.0% + 0.8 * (8.0% – 3.0%) = 7.0%
- WACC Calculation: WACC = (20/30 * 7.0%) + (10/30 * 4.5% * (1 – 0.25)) = 4.67% + 1.13% = 5.80%
Example 2: High-Growth Tech Startup
Now consider a young, high-growth technology firm with higher risk and more debt financing.
- Inputs: Levered Beta (β) = 1.6, Risk-Free Rate = 3.0%, Market Return = 8.0%, Cost of Debt = 7.0%, Tax Rate = 21%, Market Value of Equity = $2B, Market Value of Debt = $3B.
- Cost of Equity (Re) Calculation: 3.0% + 1.6 * (8.0% – 3.0%) = 11.0%
- WACC Calculation: WACC = (2/5 * 11.0%) + (3/5 * 7.0% * (1 – 0.21)) = 4.40% + 3.32% = 7.72%
This illustrates how a higher levered beta and different capital structure significantly increase the WACC. Understanding the difference between levered vs unlevered beta is key here.
How to Use This WACC Calculator
This tool simplifies the process to calculate WACC using levered beta. Follow these steps for an accurate result:
- Enter Levered Beta (β): Input the company’s equity beta. You can find this on financial data websites or calculate it yourself.
- Input CAPM Variables: Provide the current Risk-Free Rate and the Expected Market Return to calculate the Cost of Equity.
- Provide Debt & Tax Info: Enter the company’s pre-tax Cost of Debt and its corporate tax rate.
- Define Capital Structure: Input the Market Value of Equity (market cap) and the Market Value of Debt.
- Calculate: Click the “Calculate WACC” button. The calculator will instantly show the final WACC, along with intermediate values like the Cost of Equity and component weights.
- Interpret Results: The output shows the firm’s cost of capital. The pie chart and sensitivity table help visualize the components and how WACC reacts to changes in key variables. For a deeper dive, explore our CAPM calculator.
Key Factors That Affect WACC
Several factors can influence a company’s WACC. Understanding them is crucial for accurate financial analysis.
- Market Interest Rates: A change in general interest rates directly impacts the risk-free rate and the cost of debt, altering the WACC.
- Market Risk Premium: The broader market’s perception of risk affects the equity market risk premium, which is a key input for the cost of equity.
- Company’s Leverage (Debt Level): Increasing debt can initially lower WACC due to the tax shield, but too much debt increases financial risk, raising the levered beta and cost of debt, which can then increase WACC. Proper debt to equity ratio analysis is crucial.
- Levered Beta: A higher beta signifies higher systematic risk, which directly increases the cost of equity and, consequently, the WACC.
- Corporate Tax Rates: Since interest payments on debt are tax-deductible, a higher tax rate increases the value of the debt tax shield, effectively lowering the after-tax cost of debt and the WACC. Learn more about the tax shield impact.
- Industry and Business Risk: The inherent risk of a company’s business operations is the foundation of its beta. More volatile industries will naturally have higher betas and higher WACCs.
Frequently Asked Questions (FAQ)
1. Why is it important to calculate WACC using levered beta?
Levered beta captures the financial risk from a company’s debt in addition to its business risk. This provides a more accurate measure of risk for equity holders, leading to a more realistic Cost of Equity and, therefore, a more accurate WACC for valuation purposes.
2. What is a “good” WACC?
There is no single “good” WACC. It’s relative. A lower WACC is generally better, as it means the company can finance its operations more cheaply. However, WACC varies significantly by industry, company size, and risk profile. It should be compared against a company’s expected return on investment and the WACC of its peers.
3. Where can I find the inputs like Levered Beta and Market Return?
Levered beta is available on many financial data platforms like Yahoo Finance, Bloomberg, and Reuters. The Risk-Free Rate is typically the yield on a 10-year or 20-year government bond. The Expected Market Return is an estimate, but historical averages (e.g., 8-10% for the S&P 500) are commonly used.
4. What’s the difference between levered and unlevered beta?
Levered beta includes the effect of debt on a firm’s risk profile. Unlevered beta (or asset beta) removes the effect of debt, showing only the underlying business risk. Analysts often unlever the beta of comparable companies and then re-lever it to a target company’s specific capital structure.
5. Why is the cost of debt adjusted for taxes in the WACC formula?
Interest paid on debt is a tax-deductible expense. This “tax shield” reduces the company’s tax bill, effectively lowering the real cost of its debt. The WACC formula multiplies the cost of debt by (1 – Tax Rate) to account for this benefit.
6. What happens if a company has no debt?
If a company has no debt, its capital structure is 100% equity. In this case, its WACC is simply equal to its Cost of Equity (WACC = Re). Also, its levered beta would be equal to its unlevered beta.
7. Can WACC be negative?
Theoretically, it’s possible if the risk-free rate is exceptionally high and the market return is negative, but in any practical business scenario, WACC should be a positive number. A negative WACC would imply that a company gets paid to take on projects, which is not realistic.
8. How often should a company recalculate its WACC?
A company should recalculate its WACC whenever there are significant changes to its capital structure, tax rate, or the broader market conditions (e.g., major shifts in interest rates or market risk premium). For valuation purposes, it’s good practice to re-evaluate it at least annually. You might use a debt to equity calculator to monitor changes.