# Internal Growth Rate IGR Definition Uses Formula and Example

## Internal Growth Rate (IGR): Definition, Uses, Formula, and Example

The Internal Growth Rate (IGR) is a financial metric used in corporate finance to measure the maximum rate at which a company can grow its sales and assets without relying on external financing. It represents the company’s ability to generate growth using its own resources and profitability.

### Definition

The Internal Growth Rate (IGR) is a measure of a company’s ability to grow its sales and assets using its retained earnings and existing resources, without the need for additional external financing. It is calculated by taking into account the company’s net income, dividend payout ratio, and return on assets.

The formula for calculating the Internal Growth Rate is as follows:

Internal Growth Rate = Retention Ratio × Return on Assets

The retention ratio is the proportion of earnings that the company retains for reinvestment in the business, while the return on assets measures the company’s profitability in relation to its total assets.

### Uses

The Internal Growth Rate is an important metric for companies as it helps them understand their capacity for organic growth. By calculating the IGR, companies can determine how much they can grow their sales and assets using their own resources, without relying on external financing such as debt or equity issuance.

Companies can use the IGR to set realistic growth targets and develop strategies to achieve them. It can also be used to evaluate the company’s financial health and stability. If the IGR is high, it indicates that the company is generating sufficient profits to fund its own growth. On the other hand, a low IGR may indicate that the company is relying heavily on external financing to support its growth.

Investors and analysts also use the IGR to assess a company’s growth potential and financial performance. A high IGR suggests that the company has strong internal resources and profitability, which can be an attractive investment opportunity. Conversely, a low IGR may raise concerns about the company’s ability to sustain its growth in the long term.

### Example

Let’s consider a hypothetical company XYZ Inc. with a net income of \$1 million, a retention ratio of 0.6, and a return on assets of 0.15. Using the formula mentioned earlier, we can calculate the Internal Growth Rate as follows:

Internal Growth Rate = 0.6 × 0.15 = 0.09 or 9%

This means that XYZ Inc. can grow its sales and assets by a maximum of 9% using its retained earnings and existing resources, without relying on external financing.

## What is Internal Growth Rate?

Internal Growth Rate (IGR) is a financial metric that measures the maximum rate at which a company can grow its sales and assets without relying on external financing. It represents the sustainable growth rate that a company can achieve by reinvesting its earnings back into the business.

The internal growth rate is an important concept in corporate finance as it helps businesses understand their capacity for organic growth without incurring additional debt or issuing new equity. By calculating the IGR, companies can determine the optimal level of reinvestment in the business to achieve steady and sustainable growth.

The formula for calculating the internal growth rate is as follows:

• Internal Growth Rate = Retention Ratio × Return on Assets

The retention ratio is the proportion of earnings that a company retains and reinvests back into the business, while the return on assets measures the profitability of the company’s assets. By multiplying these two factors, the internal growth rate can be determined.

For example, if a company has a retention ratio of 0.6 (60%) and a return on assets of 0.15 (15%), the internal growth rate would be calculated as:

• Internal Growth Rate = 0.6 × 0.15 = 0.09 or 9%

This means that the company can grow its sales and assets by a maximum of 9% per year through internal means, without relying on external financing.

Overall, the internal growth rate provides valuable insights into a company’s ability to sustainably grow its business without relying on external sources of funding. By optimizing the retention ratio and return on assets, companies can achieve steady and profitable growth over time.

## How is Internal Growth Rate Used?

The internal growth rate (IGR) is a financial metric that measures the maximum rate at which a company can grow its sales and assets without relying on external financing. It is an important tool for evaluating a company’s ability to generate growth from its own operations.

### Calculating the Internal Growth Rate

The formula for calculating the internal growth rate is as follows:

Internal Growth Rate = (Return on Assets) x (Retention Ratio)

The return on assets (ROA) measures the profitability of a company’s assets, while the retention ratio represents the proportion of earnings that are reinvested back into the business. By multiplying these two factors together, we can determine the maximum rate at which a company can grow its sales and assets using its own profits.

The internal growth rate is a useful tool for several purposes:

1. Assessing Financial Health: By calculating the internal growth rate, investors and analysts can gauge a company’s ability to sustain growth without relying on external financing. A higher internal growth rate indicates a healthier financial position.
2. Setting Realistic Growth Targets: Companies can use the internal growth rate to set realistic growth targets based on their current profitability and reinvestment capabilities. This helps them avoid overextending themselves and ensures sustainable growth.
3. Comparing Competitors: The internal growth rate can be used to compare the growth potential of different companies within the same industry. It provides insights into which companies are better positioned to generate growth from their own operations.