Net Income Calculator
Find your net income, the bottom line left after every cost is taken out of revenue. Use the quick mode for revenue minus total expenses, or switch to the detailed mode to walk the full income statement: cost of goods sold, operating expenses, interest and taxes, with the gross, operating and net profit margins at each stage.
Formula
Worked example
Revenue of 250,000 with 100,000 COGS, 60,000 operating expenses and 8,000 interest leaves 82,000 pre-tax. At a 21% tax rate, taxes are 17,220, so net income is 64,780 and the net margin is about 25.9%.
What net income measures
Net income is the profit that remains after every expense is subtracted from total revenue: the cost of goods sold, operating expenses like wages and rent, interest on debt, and income taxes. It sits at the bottom of the income statement, which is why it is called the bottom line. Unlike gross profit, which only deducts the direct cost of producing goods, net income reflects the full cost of running the business and the tax the profit attracts.
Quick mode versus the full income statement
Quick mode is the fastest path: enter total revenue and a single total expenses figure and you get net income and net profit margin. Detailed mode walks the real income statement instead. It subtracts cost of goods sold to get gross profit, then operating expenses to get operating income (also called EBIT), then interest to get pre-tax income, and finally applies your tax rate to reach net income. Each stage also reports a margin, so you can see exactly where profit is won or lost.
Margins and why they matter
A margin expresses a profit figure as a percentage of revenue, telling you how many cents of each sales dollar survive to that line. Gross margin shows how profitable the core product is, operating margin shows how efficiently the business runs before financing and tax, and net margin shows what owners ultimately keep. Because margins normalize for scale, a small shop and a large chain can be compared directly on the share of revenue they retain, and you can track whether your own margins are improving or slipping over time.
Reading a positive or negative result
A positive net income is profit available to reinvest in the business, build cash reserves, or distribute to owners. A negative result is a net loss, meaning expenses exceeded revenue for the period and the gap must be funded from savings, financing, or prior earnings. This calculator does not charge tax on a pre-tax loss, since a loss generally creates no income-tax liability (and may carry forward to offset future profit). A single loss is not necessarily alarming for a growing company, but a persistently negative bottom line signals that pricing, volume, or the cost structure needs attention.
Typical net profit margins by sector
| Sector | Net margin | Profitability |
|---|---|---|
| Grocery & retail | 1-3% | Low |
| Manufacturing | 5-10% | Moderate |
| Professional services | 10-20% | Healthy |
| Software / SaaS | 15-30% | High |
Rough, illustrative ranges; actual margins vary widely by company and year.
Frequently asked questions
What is the difference between net income and gross profit?
Gross profit subtracts only the direct cost of goods sold from revenue. Net income goes further, subtracting all remaining expenses (operating costs, interest and taxes) to leave the final profit, or bottom line. In detailed mode this calculator shows both, plus the operating income in between.
How do I calculate net profit margin?
Divide net income by total revenue and multiply by 100. With 64,780 of net income on 250,000 of revenue, the margin is 64,780 ÷ 250,000 × 100, about 25.9%. The calculator also reports gross and operating margins so you can see where profit is gained or lost.
How are taxes applied?
In detailed mode, the tax rate you enter is applied to pre-tax income (operating income minus interest). The default is the 21% US federal corporate rate, but you can set your own effective rate. If pre-tax income is a loss, no tax is charged.
Can net income be negative?
Yes. When total expenses exceed revenue, net income is negative, a net loss. The calculator shows the loss as a negative figure, labels the result accordingly, and does not apply income tax to a pre-tax loss.