Sustainable Growth Rate
Calculate the Sustainable Growth Rate (SGR) using net income, dividends, and shareholders' equity. Determine maximum growth achievable without external equity financing.
About This Calculator
The Sustainable Growth Rate (SGR) Calculator helps business owners, financial analysts, and investors determine the maximum growth rate a company can achieve without seeking external equity or debt financing. This essential financial metric measures how efficiently a company can grow using only its retained earnings and internal resources.
The SGR is calculated using a two-step process. First, the retention ratio (also known as the plowback ratio) is calculated as (Net Income - Dividends) / Net Income, representing the proportion of earnings reinvested in the business. Second, the return on equity (ROE) is calculated as Net Income / Shareholders' Equity, measuring how effectively the company generates profits from shareholder investments. The sustainable growth rate is then: SGR = Retention Ratio × ROE. For example, a company with a 50% retention ratio and 20% ROE has an SGR of 10%.
The SGR is widely used in valuation models including the dividend discount model (DDM) and discounted cash flow (DCF) analysis. A company growing faster than its SGR will eventually need to raise external capital or increase its financial leverage, which carries risks. A company growing below its SGR may have excess cash that could be returned to shareholders through dividends or buybacks.
Regional Notes
India: Indian companies in the IT and pharmaceutical sectors often maintain high retention ratios (70-90%) to fund expansion, yielding higher SGRs. SEBI mandates dividend distribution policies for the top 500 listed companies, which influences SGR calculations for Indian investors.
United States: S&P 500 companies have an average SGR ranging from 5-15%. Technology giants like Apple and Microsoft typically have high ROE (30-50%) and high retention ratios, resulting in SGRs of 15-25%. Mature industries like utilities and consumer staples typically have lower SGRs of 3-7%.
United Kingdom: FTSE 100 companies tend to have higher dividend payout ratios, leading to lower retention ratios and SGRs. UK companies in sectors like mining and energy often have SGRs of 5-12%, while financial services companies may show 8-15% depending on regulatory capital requirements.
Frequently Asked Questions
What is the sustainable growth rate?
The sustainable growth rate (SGR) is the maximum growth rate a company can achieve without raising additional equity or debt financing. It is calculated by multiplying the retention ratio by the return on equity (ROE).
How do you calculate the sustainable growth rate?
The sustainable growth rate is calculated using the formula: SGR = Retention Ratio × ROE. First, calculate the retention ratio as (Net Income - Dividends) / Net Income. Then calculate ROE as Net Income / Shareholders' Equity. Finally, multiply the two together.
What is a good sustainable growth rate?
There is no universal benchmark for a good sustainable growth rate. A common approach is to compare a company's SGR to the GDP growth rate of its home country. An SGR higher than GDP growth indicates the company is outperforming the broader economy.
Can the sustainable growth rate be negative?
Yes, the sustainable growth rate can be negative when a company has negative net income, which makes its ROE negative. Since ROE is a key component of the SGR formula, a negative ROE results in a negative SGR.
What is the difference between SGR and actual growth rate?
The SGR represents the growth rate a company can sustain using only internal resources and retained earnings. The actual growth rate may be higher if the company uses external financing (debt or equity), or lower if it faces operational constraints.
What are the limitations of the sustainable growth rate?
The SGR is not useful for analyzing high-growth companies that reinvest heavily to gain market share, as their net income and ROE may be temporarily depressed. Additionally, companies may artificially inflate ROE through increased financial leverage, making the SGR unsustainable.
Why is the sustainable growth rate useful for investors?
The sustainable growth rate helps investors assess a company's growth trajectory and is a key input in valuation models such as the dividend discount model (DDM) and discounted cash flow (DCF) model. It provides insight into how efficiently a company uses retained earnings to generate growth.