A capital budgeting question gives you two mutually exclusive projects. Project A has a higher Internal Rate of Return (IRR). Project B has a higher Net Present Value (NPV). Which project do you choose? If your gut says "the one with the higher return," you've just walked into the most common value-destroying trap in the Corporate Finance section. The examiner is testing your judgment, not just your calculator skills.
The CFA Level I Corporate Finance section (8-12% exam weight) tests your ability to analyze how companies make investment, financing, and dividend decisions. It requires mastering capital budgeting (NPV vs. IRR), cost of capital (WACC), leverage, and working capital management.
Key facts
- Topic Area
- Corporate Finance
- Exam Level
- CFA Level I
- 2026 Exam Weight
- 8-12% of total score
- Question Format
- Multiple-choice with three answer options
- Recommended Study Hours
- 30-40 hours for mastery
- Official Body
- CFA Institute
The CFA Institute reports the pass rate for the February 2024 Level I exam was 44%, a slight increase but still indicative of the exam's difficulty (CFA Institute).
What Are the Core Corporate Finance Formulas?
Your success in Corporate Finance hinges on a few critical formulas. But the real points are won by understanding the why behind the math. The exam tests judgment, not just calculation.
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Myth vs. Reality: The Cost of Capital
Myth: A company has one "cost of capital." Reality: The Weighted Average Cost of Capital (WACC) is a blended cost that changes with capital structure, market conditions, and project-specific risk.The WACC is the minimum return a company must earn on its existing asset base to satisfy its creditors, owners, and other providers of capital.
- Weighted Average Cost of Capital (WACC):
WACC = (Wd × Kd × (1 − t)) + (Wp × Kp) + (We × Ke)
-
Wd,Wp,We= Market value weights of debt, preferred stock, and common equity -
Kd= Pre-tax cost of debt (usually the YTM on new long-term debt) -
Kp= Cost of preferred stock (Dp ÷ P0) -
Ke= Cost of common equity -
t= Marginal tax rate
(1 − t) on debt. Interest is tax-deductible; preferred dividends and common equity returns are not.The cost of equity (Ke) itself can be found in three ways:
- Capital Asset Pricing Model (CAPM):
Ke = Rf + β × (E(Rm) − Rf)
- This is the most tested method.
Rfis the risk-free rate,βis the stock's systematic risk, and(E(Rm) − Rf)is the market risk premium.
- Dividend Discount Model (DDM):
Ke = (D1 ÷ P0) + g
- Best for stable, dividend-paying companies.
- Bond Yield Plus Risk Premium:
Ke = Company's Long-Term Debt Yield + Risk Premium
- A more ad-hoc, but valid, approach tested on the exam.
A company has the following market values: Debt = $30M, Equity = $70M.
- Cost of Equity (Ke): 13%
- Pre-tax Cost of Debt (Kd): 6%
- Marginal Tax Rate (t): 25%
Wd = $30M ÷ $100M = 0.30
We = $70M ÷ $100M = 0.70
Step 2: Calculate the after-tax cost of debt.
After-tax Kd = 6% × (1 − 0.25) = 4.5%
Step 3: Calculate WACC.
WACC = (0.30 × 4.5%) + (0.70 × 13%)
WACC = 1.35% + 9.1% = 10.45%
Analysis: The company's blended cost of capital is 10.45%. This is the discount rate you would use to evaluate an average-risk project for the firm. A project with higher-than-average risk would require a higher discount rate.Calculate Your CFA Level 1 Score & Study Hours by Domain
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How Do You Make Optimal Capital Budgeting Decisions?
This is where you decide which projects create value for shareholders.
Myth vs. Reality: The Best Investment Metric
Myth: The project with the highest IRR is always the best choice. Reality: NPV is the gold standard. It measures the exact dollar amount of value added to the firm. IRR can be misleading.- Net Present Value (NPV): The sum of a project's discounted future cash flows, minus the initial investment.
- Rule: Accept any project with
NPV > 0. For mutually exclusive projects, always choose the one with the highest positive NPV. - Internal Rate of Return (IRR): The discount rate that makes
NPV = 0. - Rule: Accept any project where
IRR > WACC. - The Trap: When ranking mutually exclusive projects of different scales or timing of cash flows, IRR can give a different ranking than NPV. For example, a small project might have a 50% IRR but only add $10,000 in value. A larger project might have a 20% IRR but add $1,000,000 in value. You take the million dollars. Always default to NPV.
Other methods you must know:
- Payback Period: How long it takes to recoup the initial investment. Ignores time value of money and later cash flows.
- Discounted Payback Period: Same as above, but uses discounted cash flows. An improvement, but still ignores cash flows after the payback point.
- Profitability Index (PI):
PI = (PV of future cash flows ÷ Initial investment) = 1 + (NPV ÷ Initial investment) - Rule: Accept if
PI > 1.0. Useful for capital rationing when you have a fixed budget.
What Do Leverage and Dividend Policies Mean for a Firm?
Leverage magnifies outcomes, for better or worse. Dividend policy signals a company's prospects and affects its valuation.
Leverage Formulas
- Degree of Operating Leverage (DOL): Measures the sensitivity of operating income (EBIT) to changes in sales. It arises from fixed operating costs.
DOL = % Change in EBIT ÷ % Change in Sales
- Degree of Financial Leverage (DFL): Measures the sensitivity of net income (EPS) to changes in operating income. It arises from fixed financing costs (interest).
DFL = % Change in EPS ÷ % Change in EBIT
- Degree of Total Leverage (DTL): The combined effect.
DTL = DOL × DFL = % Change in EPS ÷ % Change in Sales
Dividend Policy Theories
You don't need to be an expert, but you must recognize the main theories:
- Dividend Irrelevance (Modigliani-Miller): In a world with no taxes or transaction costs, dividend policy doesn't affect firm value. Investors can create their own dividends by selling shares.
- Bird-in-Hand (Gordon-Lintner): Investors prefer the certainty of a dividend today over the uncertainty of a future capital gain. A higher payout ratio increases firm value.
- Tax Preference: Because capital gains are often taxed at a lower rate than dividends, investors prefer companies to reinvest earnings rather than pay them out. A lower payout ratio increases firm value.
- Residual Dividend Policy: The company pays out only what's left over (the "residual") after funding all positive-NPV projects. This leads to volatile dividends but maximizes capital budgeting efficiency.
How Is Working Capital and Governance Tested?
These topics are less calculation-heavy but require you to know key definitions and relationships.
Working Capital Management
The goal is to manage current assets and liabilities to minimize costs and maximize liquidity. The key metric is the Cash Conversion Cycle (CCC).
CCC = Days of Inventory Outstanding (DIO) + Days Sales Outstanding (DSO) − Number of Days of Payables (DPO)
| Ratio | Formula | Interpretation |
|---|---|---|
| Current Ratio | Current Assets ÷ Current Liabilities | Short-term liquidity; ability to cover current obligations. |
| Quick Ratio (Acid-Test) | (Current Assets − Inventory) ÷ Current Liabilities | A stricter liquidity measure, excluding less liquid inventory. |
| DIO (Days Inventory) | 365 ÷ Inventory Turnover | Average number of days inventory is held. Lower is better. |
| DSO (Days Receivables) | 365 ÷ Receivables Turnover | Average number of days to collect from customers. Lower is better. |
| DPO (Days Payables) | 365 ÷ Payables Turnover | Average number of days the company takes to pay its suppliers. Higher is better. |
A shorter CCC means the company needs less time to turn its investments in inventory back into cash.
Corporate Governance
This is the system of internal controls and procedures by which companies are managed. The focus is on stakeholder management and mitigating conflicts of interest. You should understand:
- Principal-Agent Relationship: The conflict between shareholders (principals) and management (agents).
- Board of Directors: Its role, structure (e.g., one-tier vs. two-tier), and committees (audit, compensation).
- Shareholder vs. Stakeholder Theory: The debate over whether a firm's primary duty is to shareholders or a broader group of stakeholders (employees, customers, society).
How to Integrate This Guide Into Your Study Plan
This guide is a tool for active learning, not a substitute for the curriculum. Use it to focus your efforts.
Your Weekly Drill
- Prime: Before starting a Corporate Finance study session in the VoraPrep course, spend 5 minutes reviewing the relevant section here.
- Practice: After completing a lesson, immediately work through a block of related questions from VoraPrep's adaptive CFA Level I practice bank. When you get one wrong, don't just read the explanation. Come back to this guide and explain the underlying principle to yourself in your own words.
- Recall: Convert the formulas and "Myth vs. Reality" points into flashcards. VoraPrep's built-in FSRS flashcards automate this process, scheduling reviews based on when you're most likely to forget.
This active loop of priming, practicing, and recalling is far more effective than passively reading or watching lectures. You can test this method with our Free CFA Level I Practice Questions.
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