VC & PE Glossary
What Is Operating Margin?
Updated
Definition
Operating margin is operating income divided by revenue — showing what percentage of sales remains after cost of goods sold and operating expenses, before interest and taxes.
Useful for: Founders, Investors
Operating margin measures profitability from core operations as a percentage of revenue — a key lens on business quality at scale.
How it works
Formula: Operating income ÷ Revenue. Operating income sits after COGS and OpEx (R&D, S&M, G&A) but before interest, taxes, and one-time items. Example: $50M revenue, $35M OpEx, $5M COGS → $10M operating income → 20% operating margin.
Early-stage startups often run negative operating margins intentionally while investing in growth. Investors expect margin improvement in later stages — best B2B SaaS targets long-term operating margins of 20–30%+ at scale, though paths vary by go-to-market motion.
Gross margin and operating margin tell different stories: high gross margin with negative operating margin suggests heavy S&M or R&D — common in land-grab phases.
Why it matters
- Founders: Use margin bridges in board decks — price, COGS efficiency, headcount per revenue dollar — to show progress toward sustainable economics.
- Investors: Public comps and late-stage private rounds price partly on margin profile. Low gross margin caps ultimate operating margin regardless of OpEx discipline.
Common mistake
Quoting EBITDA margin interchangeably with operating margin. EBITDA adds back depreciation and amortization — material for asset-heavy businesses, less so for pure SaaS.
Related ideas
See also operating expense, gross margin, net revenue, and rule of 40.
Related terms
- Net Revenue — Net revenue is gross revenue minus returns, discounts, refunds, and sometimes taxes or pass-through fees — the amount the company actually retains from sales.
- Operating Expense — Operating expense (OpEx) is the ongoing cost of running a business — payroll, rent, software, marketing, and admin — excluding capital expenditures and non-operating items like interest and taxes.
Common questions
Short answers for founders, LPs, and operators