Net margin (net profit margin) is the percentage of revenue left after subtracting all operating expenses: cost of goods sold, R&D, sales and marketing, and G&A, not just delivery costs. Net Margin = Net Income / Revenue. Many growth-stage SaaS companies run negative net margin by design, reinvesting in growth rather than reporting a profit.
What is Net Margin?
Net margin, or net profit margin, is the percentage of revenue a company keeps after subtracting every operating expense. Not just the direct cost of delivering the product, but R&D, sales and marketing, and general & administrative (G&A) costs as well. It's the most complete, bottom-line view of profitability.
In words: net margin equals net income divided by revenue.
Example
A company brings in $2,000,000 in annual revenue. After paying for cost of goods sold, R&D, sales and marketing, and G&A, it has $200,000 left as net income.
Net Margin = $200,000 / $2,000,000 = 10%
That company converts 10 cents of every revenue dollar into actual bottom-line profit, after every cost of running the business.
Why many SaaS companies run negative net margin
Unlike gross margin, which is usually positive even for young companies, net margin is frequently negative for growth-stage SaaS businesses, and often by design. A company might be spending heavily on sales and marketing to capture market share, or investing in R&D to build out its product, well beyond what its current revenue supports.
This isn't automatically a red flag. A company growing 40% a year with a −10% net margin can be executing exactly the strategy investors want to see: trading short-term profit for long-term market position. The Rule of 40 exists specifically to evaluate that growth-versus-profitability tradeoff, rather than judging profit margin in isolation.
Gross Margin vs Net Margin
| Gross Margin | Net Margin | |
|---|---|---|
| Subtracts | COGS only (hosting, support, delivery costs) | All operating expenses (COGS + R&D + sales & marketing + G&A) |
| Answers | How efficient is delivering the product itself? | Is the whole business profitable? |
| Typical SaaS range | 70–85% | Often negative in growth stage; 10–20%+ at maturity |
A company can have a strong gross margin, meaning the product itself is cheap to deliver, and still post a deeply negative net margin, because it's spending well beyond that gross profit on growth. See Gross Margin for the full breakdown of what sits above the net-margin line.
Net margin and the Rule of 40
The Rule of 40 adds a company's revenue growth rate to a profit margin, most commonly EBITDA margin or free cash flow margin, both close cousins of net margin, and treats a combined score of 40% or higher as healthy. This is precisely why negative net margin doesn't automatically disqualify a company: a business growing 50% a year with a −10% margin still scores 40, comfortably in "healthy" territory.
Because companies vary in exactly which margin they plug into that formula, two companies both citing a "Rule of 40 score" aren't always measuring the profitability side the same way. Worth checking before comparing scores directly.
How to improve net margin
- Grow revenue faster than operating costs, rather than cutting costs in isolation. Net margin improves fastest when fixed costs (G&A, some R&D) get spread across a larger revenue base.
- Improve gross margin first. Since net margin sits below gross margin, any gross-margin improvement flows straight through to the bottom line.
- Tighten sales and marketing efficiency. For most growth-stage SaaS companies, sales & marketing is the single largest lever on net margin. Track it alongside CAC Payback Period rather than in isolation.
- Revisit net margin relative to growth stage, not a fixed target. A negative net margin paired with strong growth and a healthy Rule of 40 score may be exactly the right trade to be making right now.