Sustainable Growth Rate Formula: Find Your Ceiling.
The sustainable growth rate formula multiplies four things: profit margin, the share of profit you keep, asset turnover and leverage. Robert Higgins set it out in 1977 as the fastest you can grow on your own money. However, treat the result as an estimate, not a law.
Four numbers multiplied together.
So how fast can my business grow without raising a cent? Higgins answered with one figure. First, take your profit margin. Then take the share of profit you keep inside the business. Also add how much revenue each unit of assets generates. Finally, add how much of those assets someone other than you finances.
A worked sustainable growth rate formula example.
Take a small manufacturer with net income of a hundred and twenty thousand on sales of two million. That is a margin of six per cent. Since thirty thousand goes out as dividends, three quarters stays inside. Assets of eight hundred thousand turn two and a half times. Then equity of four hundred thousand gives leverage of two. Multiplied together, the result is twenty-two and a half per cent.
That business can grow sales by twenty-two per cent a year without raising a cent. However, moving faster on its own money consumes cash it has not got, which kills profitable companies.
Why the number is not a speed limit.
The higgins sustainable growth model is static. It assumes margin, asset efficiency, leverage and dividends stay put, with no inflation. But in a business your size, none of those stay anywhere for long. For example, you buy one machine and it sits at forty per cent capacity for a year. So the sustainable growth rate formula works as a diagnostic, not a prediction.
Run the sustainable growth rate formula tonight.
Pull your margin, retained share of profit, sales over assets, and assets over equity.
Multiply the four together, then write the result down as an estimate, not a rule.
From the book.
That's the ceiling for that business, and yours has one too. It can grow sales by twenty-two per cent a year forever without raising a cent, and the moment it tries to move faster than that on its own money it starts consuming cash it hasn't got. You already know what that looks like from chapter two, it has a name, and it kills profitable companies.
I Want to Start a Business but I Don't Have Money, chapter 10: The growth loop
Questions about sustainable growth rate formula.
What does the sustainable growth rate formula measure?
It measures the annual percentage increase in sales consistent with your established financial policies, using only money your business produces.
Who created this growth ceiling?
Robert Higgins, a finance academic, published it in Financial Management in 1977.
Can I trust the result completely?
No. The model is static and assumes no inflation, so read it as an honest estimate of your engine.
Read the whole chapter.
This lesson covers one section of chapter 10, “The growth loop”. The book goes further, with the full evidence, the stories and every exercise.
Lessons in this chapter.
- 01 Sales Funnel vs Growth Loop: Pick the Shape That Grows.
- 02 Sustainable Growth Rate Formula: Find Your Ceiling.
- 03 Reinvest Profits in Small Business: The Bedroom Rule.
- 04 Types of Growth Loops: The Thirty Day Test.
- 05 Ricardo Semler on Growth: Ask What It Is For.
- 06 Why Growth Channels Stop Working: Spot It Early.
- 07 Bootstrapping vs Venture Capital: Weigh Both Sides.