Rule Of 40 Explained: Meaning, Types, Process, and Use Cases
The **Rule of 40** is one of the most common shorthand tests used to judge whether a software or subscription business is balancing growth and profitability well. In simple terms, it asks whether a company’s revenue growth rate plus its profit margin adds up to at least 40%. It is widely used in SaaS, private equity, venture capital, and public-market analysis, but it is a benchmark—not a law, accounting standard, or guaranteed sign of quality.