What is operating margin?
Operating margin is operating profit (EBIT) divided by revenue, expressed as a percentage. It measures how much of every dollar of sales the business converts into profit from core operations — after COGS and all operating expenses, but before interest and tax.
Formula
Operating Margin = Operating Profit (EBIT) ÷ Revenue
Operating Profit = Revenue − COGS − SG&A − R&D − Depreciation & Amortization
Under IFRS (IAS 1), operating profit is not a mandatory subtotal but is almost always presented. Under US GAAP (ASC 220), it is one of the four required income-statement subtotals for SEC registrants.
Operating margin vs. related ratios
- Operating margin vs. gross margin: gross margin captures only COGS efficiency; operating margin captures the entire cost structure of running the business.
- Operating margin vs. EBITDA margin: EBITDA margin adds back depreciation and amortisation — useful for capital-intensive comparisons but flattering for businesses with heavy capex.
- Operating margin vs. net margin: net margin further deducts interest and tax — distorted by capital structure and tax planning.
Benchmarks and interpretation
Mature public SaaS companies typically operate at 15–25% operating margin; the most efficient ones (high NRR, low CAC) reach 30%+. Early-stage SaaS often runs negative operating margin during the growth phase by design — the right question is the trajectory and the path to break-even, not the current month’s number.
Do: track operating margin alongside the LTV:CAC ratio; a healthy mix grows revenue and improves operating margin in the same year.
Don’t: compare operating margins across industries without adjusting for capital intensity — a software business at 20% and a manufacturer at 20% have very different economics.