Net Profit Margin Calculator
What Is Net Profit Margin?
Net profit margin measures how much of each revenue dollar remains after paying every cost the business incurs — direct costs, overhead, interest, and taxes. It is the bottom line percentage, the truest measure of whether a business is actually making money.
A business can have a strong gross profit margin and still lose money if overhead is too high. Net profit margin closes that gap and tells you what you actually kept after everything was paid.
The Formula
Net Profit Margin = Net Income / Revenue x 100
Definitions
Net income is what remains after subtracting all expenses from revenue — direct costs, operating overhead, interest expense, and income taxes. It is the last line on your income statement.
Revenue is the total amount billed to customers for products or services delivered during the period.
The Relationship Between Gross and Net Margin
Gross profit margin tells you how efficiently you deliver your product or service. Net profit margin tells you how efficiently you run the entire business. The gap between the two is your overhead burden — all the costs that exist regardless of how much work you do.
A business with a 35% gross margin and a 5% net margin is spending 30% of revenue on overhead. Whether that is acceptable depends on the industry, but it tells you exactly where to look if you want to improve profitability.
A Worked Example
A regional IT services firm has the following annual financials:
Annual revenue: $2,400,000
Direct costs (labor, software, equipment): $1,320,000
Gross profit: $1,080,000
Operating overhead: $840,000
Operating income: $240,000
Interest expense: $32,000
Income taxes: $52,000
Net income: $156,000
Net Profit Margin = $156,000 / $2,400,000 x 100 = 6.5%
For every dollar of revenue, this company retains 6.5 cents after all costs.
What Is a Good Net Profit Margin?
Like gross margin, net margin benchmarks vary widely by industry. Retail businesses often run 2-5%. Service businesses might target 10-15%. Software companies can exceed 20%. Manufacturing typically falls in the 5-10% range. A positive net margin means the business is profitable. A negative one means it is not, regardless of how busy it is.
Track your net margin over time and compare it to industry peers rather than applying a universal standard.
Net Margin vs. Cash Flow
A positive net margin does not always mean the business has cash. Timing differences between when you earn revenue and when you collect it, along with debt payments and capital expenditures, can leave a profitable business short on cash. Net margin tells you about profitability. Cash flow tells you about liquidity. You need to track both.