Understanding the cost of internal equity is crucial for any business looking to evaluate its financing options. Unlike debt, which has a clear interest expense, internal equity is less straightforward. It represents the opportunity cost of using retained earnings to fund operations or investments instead of distributing them to shareholders. Calculating this cost allows firms to compare it against other sources of capital and make well-informed financial decisions.
Formula
The Cost of Internal Equity is commonly calculated using the Gordon Growth Model (Dividend Discount Model):
Cost of Internal Equity = (Dividend per Share / Price per Share) + Growth Rate
Where:
- Dividend per Share (D1): Expected dividend in the next year.
- Price per Share (P0): Current market value of one share.
- Growth Rate (g): Expected annual growth in dividends.
This model assumes that dividends will grow at a constant rate indefinitely, making it suitable for stable and mature companies.
How to Use
To use the calculator:
- Enter the expected dividend per share: This is the dividend projected for the upcoming year.
- Input the current market price per share: The prevailing stock price in the market.
- Insert the growth rate of dividends: Expressed as a percentage (e.g., 5 for 5%).
- Click “Calculate”: The calculator will provide the cost of internal equity as a percentage.
Example
Assume a company expects to pay a dividend of $2 per share next year. Its current share price is $40, and the dividends are expected to grow at 6% annually.
Using the formula:
Cost of Internal Equity = (2 / 40) + 0.06 = 0.05 + 0.06 = 0.11 or 11%
This 11% represents the minimum return investors expect from the company if it reinvests earnings instead of paying dividends.
FAQs
1. What is the cost of internal equity?
It is the required rate of return on retained earnings, reflecting the opportunity cost of not distributing profits to shareholders.
2. Why is it important?
It helps companies compare the cost of equity with the cost of debt or external financing.
3. Is the cost of internal equity the same as the cost of retained earnings?
Yes, they are used interchangeably in most financial contexts.
4. What is the Gordon Growth Model?
It’s a method to value a stock or determine the cost of equity by assuming constant dividend growth.
5. When should I use this calculator?
Use it when evaluating internal funding for projects versus seeking external funding.
6. What happens if the growth rate is zero?
The formula simplifies to Cost of Equity = Dividend / Price.
7. Can the growth rate exceed the dividend yield?
Yes, but the assumptions must be realistic for long-term analysis.
8. How does this compare to external equity?
External equity includes flotation costs, making it typically more expensive than internal equity.
9. What if a company doesn’t pay dividends?
The model isn’t applicable; other methods like CAPM (Capital Asset Pricing Model) are used.
10. Is this model suitable for all companies?
No, it’s best for mature companies with stable and predictable dividend growth.
11. What does a high cost of internal equity indicate?
It suggests higher expectations from shareholders or a riskier investment profile.
12. Can a company have a negative cost of internal equity?
Not realistically—this would imply negative growth or market anomalies.
13. Do taxes impact this calculation?
Not directly in the basic formula, but taxes affect real returns and dividend policies.
14. Is this the same as the required rate of return?
Essentially, yes—it reflects what investors expect to earn.
15. Should firms always reinvest earnings if the cost is low?
Only if they can generate returns higher than the cost of equity.
16. How often should the cost be recalculated?
Quarterly or annually, or whenever there’s a change in dividends, growth, or market price.
17. Can inflation affect this model?
Yes, expected inflation may influence dividend growth assumptions.
18. How is it used in weighted average cost of capital (WACC)?
It contributes to the equity portion of WACC, impacting overall funding costs.
19. What data sources are reliable for inputs?
Company financial statements, dividend announcements, and market reports.
20. Can this be used for preferred stock?
No, preferred stock uses a different cost model due to fixed dividend payments.
Conclusion
The Cost of Internal Equity Calculator offers a straightforward method to evaluate the implicit cost of using retained earnings for business investment. By comparing this internal rate of return with external funding costs, businesses can optimize their capital structure. Whether you’re a financial analyst, a student of finance, or a small business owner planning growth, this tool simplifies an essential part of corporate finance strategy.
Use it regularly to stay informed, make better capital budgeting decisions, and ensure your company’s investments exceed the expectations of its shareholders.