Gross Margin (SaaS)

Gross margin in a SaaS business measures the percentage of revenue left after deducting the direct costs of delivering your software to customers (called Cost of Goods Sold or COGS). The formula is: Gross Margin = (Revenue - COGS) / Revenue × 100. SaaS COGS typically includes cloud hosting costs (AWS, GCP, Azure), customer support team salaries, payment processing fees, third-party API costs, and DevOps/infrastructure team costs.

SaaS companies are prized for their high gross margins — typically 70-85%, compared to 20-40% for physical product businesses. This means 70-85 cents of every dollar of revenue is available to fund growth, R&D, and operations. The remaining 15-30% covers the direct cost of keeping the product running.

What counts as COGS in SaaS is sometimes debated. A strict interpretation includes only costs that scale directly with revenue: hosting, third-party APIs, and support. A more conservative (and investor-preferred) approach also includes portions of DevOps salaries, data costs, and anything directly tied to keeping the product available. Consistently applying your methodology is more important than which approach you choose — just make sure you're honest about it and can explain your classification to investors.

Gross margin determines how much of each revenue dollar you can reinvest in growth. A SaaS company with 80% gross margins has dramatically more room to invest in sales, marketing, and R&D than one with 50% margins. Investors use gross margin as a quality signal — margins below 60% suggest the business has SaaS pricing but non-SaaS cost structure (heavy implementation, manual processes, or expensive third-party dependencies). High gross margins also make your company more valuable: investors apply higher valuation multiples to high-margin businesses because more revenue drops to the bottom line.