Net income is what remains after you subtract every expense, interest payment, and tax bill from a company’s total revenue. It sits at the very bottom of the income statement, which is why accountants often call it “the bottom line.” The basic formula is straightforward, but getting there involves several layers of subtotals that each tell you something different about a business’s financial health.
The Core Formula
At its simplest, net income equals total revenue minus total expenses. You can express it in one line:
Net Income = Total Revenue − Total Expenses
“Total expenses” includes everything: the cost of producing goods or services, day-to-day operating costs, interest on debt, and income taxes. In practice, though, accountants rarely lump all expenses together. Instead, they break the calculation into steps so that each subtotal reveals a different layer of profitability. That stepped approach is the multi-step income statement, and understanding it is the key to finding net income accurately.
Step 1: Calculate Gross Profit
Start with net sales, which is total revenue after subtracting returns, allowances, and discounts. Then subtract the cost of goods sold (COGS), the direct costs tied to producing whatever you sell. For a manufacturer, COGS includes raw materials and factory labor. For a retailer, it is the wholesale cost of inventory.
Gross Profit = Net Sales − Cost of Goods Sold
Gross profit tells you how much money the business keeps from each sale before paying for rent, salaries, marketing, or anything else that keeps the doors open. A shrinking gross profit usually signals that production costs are rising faster than prices.
Step 2: Find Operating Income
From gross profit, subtract operating expenses. These are the ongoing costs of running the business that are not directly tied to producing a product: rent, utilities, office salaries, insurance, depreciation on equipment, advertising, and similar overhead.
Operating Income = Gross Profit − Operating Expenses
Operating income (sometimes called operating profit or EBIT, earnings before interest and taxes) isolates how well the company’s core business performs before financing decisions and tax obligations enter the picture. If operating income is negative, the business is spending more to run its operations than it earns from sales, regardless of how it is financed.
Step 3: Account for Non-Operating Items
Below operating income, you add or subtract items that fall outside normal business operations. The two most common are interest expense (the cost of borrowing) and interest income (earnings on cash or investments the company holds). You might also see gains or losses from selling an asset, lawsuit settlements, or write-downs of obsolete inventory. These non-operating items can swing the bottom line significantly in any given period, which is exactly why the income statement separates them from operating results.
After folding in non-operating items, you arrive at earnings before taxes (sometimes labeled “pre-tax income”).
Step 4: Subtract Income Taxes
The final step is subtracting income tax expense. This line reflects the total tax the business owes on its taxable income for the period, including both federal and state obligations. What remains is net income.
Net Income = Operating Income + Non-Operating Income − Non-Operating Expenses − Income Taxes
Or, condensing the whole journey into one equation:
Net Income = Revenue − COGS − Operating Expenses − Interest − Taxes ± Other Non-Operating Items
A Quick Worked Example
Suppose a company reports the following for the year:
- Net sales: $500,000
- Cost of goods sold: $200,000
- Operating expenses: $150,000
- Interest expense: $10,000
- Income tax: $28,000
Gross profit is $500,000 minus $200,000, or $300,000. Operating income is $300,000 minus $150,000, or $150,000. Subtract the $10,000 interest expense to get pre-tax income of $140,000. Subtract $28,000 in taxes, and net income lands at $112,000. That $112,000 is the amount available to reinvest in the business or distribute to owners.
How Your Accounting Method Affects Net Income
The number you calculate depends on when you recognize revenue and expenses, which comes down to whether you use cash basis or accrual accounting.
Under accrual accounting, you record revenue when it is earned (when the product ships or the service is performed) and expenses when they are incurred, regardless of when cash actually changes hands. If you deliver $20,000 worth of consulting in December but the client pays in January, accrual accounting counts that $20,000 as December revenue. Likewise, a bill you receive in December is a December expense even if you pay it in January. This matching of revenue and expenses to the same period gives a more accurate picture of profitability for any given month or quarter.
Cash basis accounting is simpler. Revenue is recorded only when you collect the payment, and expenses are recorded only when you pay them. That same $20,000 consulting fee would not appear until January, when the check arrives. Small businesses with straightforward transactions often start with cash basis because it is easier to manage, but it can distort net income from period to period. A business might look highly profitable in a month when several large invoices happen to get paid, then appear to lose money the next month, even though the actual work was spread evenly.
Publicly traded companies are required to use accrual accounting. If you are reading a public company’s income statement, the net income figure already reflects accrual timing.
Where to Find Net Income on Financial Statements
On a company’s income statement (also called the profit and loss statement, or P&L), net income is the last line. In annual reports and SEC filings, it is typically labeled “net income,” “net earnings,” or “net profit.” Some companies also report “net income attributable to common shareholders,” which adjusts for preferred stock dividends.
Net income also flows into two other statements. On the balance sheet, it increases retained earnings, the cumulative profits the business has kept rather than distributed to owners. On the cash flow statement, it is the starting point for the operating activities section, which then adjusts for non-cash items like depreciation to show how much actual cash the business generated.
Net Income vs. Related Metrics
You will often see net income discussed alongside a few related figures that strip out certain costs to highlight different aspects of performance. EBIT (earnings before interest and taxes) adds interest and tax expenses back to net income, showing operating profit independent of how the business is financed or where it is incorporated. Gross profit stops even earlier, looking only at revenue minus the direct cost of production. Each metric answers a different question, but net income is the most comprehensive because it accounts for every cost the business faces.
Earnings per share (EPS), a number investors watch closely, is simply net income divided by the number of outstanding shares. When a company reports “EPS of $3.50,” it means net income worked out to $3.50 for every share of stock.