Direct Answer
Net income is pretax income minus income tax expense, representing a company's total profit after all expenses, interest, and taxes - the "bottom line" of the income statement. It's used to calculate earnings per share (EPS) by dividing by shares outstanding, and it flows into retained earnings on the balance sheet.
Key Takeaways
- Net income equals pretax income minus income tax expense - the final line of the income statement, after every operating expense, interest charge, and tax has been subtracted from revenue.
- It's commonly called the "bottom line" because of where it sits on the income statement, below gross profit, operating income, and pretax income.
- Earnings per share (EPS) is calculated by dividing net income by shares outstanding, so anything that changes net income - or the share count - moves EPS.
- Net income flows into retained earnings on the balance sheet, linking the income statement to a company's accumulated equity over time.
- Net income can vary in comparability across companies and periods because of one-time items, accounting estimates, and non-cash charges - it's typically reviewed alongside cash flow rather than in isolation.
What Is Net Income?
Net income is the profit a company has left after subtracting every expense it incurred during a period - cost of goods sold, operating expenses like salaries and marketing, interest paid on debt, and income taxes - from its revenue. Because it sits on the final line of the income statement, after every other deduction has already been made, it's commonly referred to as the "bottom line."
The calculation itself is simple: net income equals pretax income minus income tax expense. Pretax income (sometimes called income before taxes, or earnings before tax) is what remains after operating expenses and interest have already been subtracted from revenue. The last step - subtracting the tax bill - produces net income, the number most commonly associated with a company's overall profitability for the period.
Where Net Income Is Reported and How It's Calculated
Net income appears on the income statement (also called the statement of operations or profit and loss statement), one of the three core financial statements alongside the balance sheet and the cash flow statement. It's the final line item, reported after revenue, cost of goods sold, operating expenses, interest expense, and income tax expense have each been subtracted in sequence.
| Line item | What happens at this step |
|---|---|
| Revenue | Total sales for the period, the top line of the income statement. |
| Operating expenses & cost of goods sold | Subtracted from revenue to arrive at operating income (EBIT). |
| Interest expense (and other non-operating items) | Subtracted from operating income to arrive at pretax income. |
| Income tax expense | Subtracted from pretax income. |
| Net income | What remains after income tax expense is subtracted from pretax income - the bottom line. |
The formula itself is narrow and specific: Net income = Pretax income − Income tax expense. Everything upstream of that final subtraction - revenue recognition, cost of goods sold, operating expenses, interest expense - determines pretax income, but the definition of net income itself is just that last step.
Worked Example
Hypothetical example - for education only. Assume a company reports the following for one fiscal year:
| Line item | Amount |
|---|---|
| Revenue | $500,000,000 |
| Operating expenses (cost of goods sold, SG&A, R&D, depreciation) | $410,000,000 |
| Operating income (EBIT) | $90,000,000 |
| Interest expense | $10,000,000 |
| Pretax income | $80,000,000 |
| Income tax expense (illustrative 21% rate) | $16,800,000 |
| Net income | $63,200,000 |
Working through the math: $500,000,000 in revenue minus $410,000,000 in operating expenses leaves $90,000,000 of operating income. Subtracting $10,000,000 of interest expense produces $80,000,000 of pretax income. Applying the illustrative 21% tax rate produces $16,800,000 of income tax expense, and $80,000,000 minus $16,800,000 leaves net income of $63,200,000.
If this hypothetical company has 40,000,000 shares outstanding, EPS would be $63,200,000 ÷ 40,000,000 = $1.58 per share. If the company began the year with $200,000,000 of retained earnings and paid $20,000,000 in dividends, ending retained earnings would be $200,000,000 + $63,200,000 − $20,000,000 = $243,200,000.
- All figures above are hypothetical and simplified for illustration.
- Real companies can have multiple tax jurisdictions, deferred taxes, and non-operating items that make the path from pretax income to net income more complex than shown here.
- A single example cannot establish typical results for any real company or market period.
Why Net Income Matters
Net income is commonly used as the headline measure of a company's profitability because it captures the combined effect of revenue, costs, interest, and taxes in a single figure. It's the input for earnings per share, which is in turn commonly used in valuation multiples such as the price-to-earnings ratio, and it's the profit figure that ultimately adds to (or, in a loss period, subtracts from) retained earnings on the balance sheet.
Because net income sits at the end of a long chain of deductions, it can also be more sensitive than earlier profit lines - like gross profit or operating income - to items that aren't directly tied to a company's core operations, such as interest expense on debt load, one-time gains or losses, or shifts in the effective tax rate. Comparing net income across companies with different capital structures or tax situations can require care for that reason, and it's typically reviewed alongside operating income and cash flow rather than as a stand-alone verdict on business quality.
Limitations and Common Mistakes
| Mistake | Why it causes problems | Better practice |
|---|---|---|
| Treating net income as equivalent to cash generated | Net income includes non-cash items such as depreciation and can be affected by the timing of revenue recognition, so it doesn't always match cash actually collected in the period. | Compare net income against operating cash flow to see how much of reported profit converted into cash. |
| Ignoring one-time items | A large one-time gain or loss - an asset sale, a legal settlement, a restructuring charge - can distort a single period's net income relative to ongoing operating performance. | Note any unusual or non-recurring items disclosed in the income statement or footnotes before drawing conclusions from one period's figure. |
| Comparing net income across very different capital structures | Interest expense is subtracted before net income is calculated, so two operationally similar companies with different debt loads can show different net income even with identical operating performance. | Compare operating income (EBIT) alongside net income when capital structures differ meaningfully between companies. |
| Assuming the effective tax rate is constant | Effective tax rates can vary year to year and across jurisdictions, so changes in net income can partly reflect tax outcomes rather than changes in underlying business performance. | Check whether a change in net income traces back to operating results, interest expense, or the tax line before attributing it to the business itself. |
Net income remains a widely used profitability measure, but it is one figure among several - operating income, free cash flow, and per-share trends over multiple periods each add context that a single period's bottom line cannot provide alone.
Frequently Asked Questions
What is the formula for net income?
Net income equals pretax income minus income tax expense. Pretax income itself is revenue minus all operating expenses, interest expense, and any other non-operating items, so net income represents total profit after every expense, interest charge, and tax has been subtracted.
Is net income the same as profit?
Net income is commonly called a company's bottom-line profit because it sits on the last line of the income statement after every expense, interest charge, and tax. Other profit measures - gross profit, operating income, EBITDA - stop at earlier points in the statement and exclude items net income includes.
How does net income affect earnings per share?
Earnings per share is calculated by dividing net income by shares outstanding, typically the weighted average diluted share count for a period. Because EPS is derived directly from net income, anything that changes net income - or the share count in the denominator - moves EPS as well.
Where does net income go after it's reported?
Net income flows into retained earnings on the balance sheet. Any portion not paid out as dividends is added to the retained earnings balance, which is why net income links the income statement to the balance sheet from one period to the next.
Can net income be misleading?
Net income can be affected by one-time items, accounting estimates, and non-cash charges that don't reflect a company's ongoing cash-generating ability, so it can vary in comparability across companies and periods. It is typically reviewed alongside cash flow and other profit measures rather than in isolation.
Why can a profitable company still run low on cash?
Net income is an accounting measure that includes non-cash items such as depreciation and can be affected by the timing of revenue recognition, while cash flow reflects actual cash moving in and out of the business. A company can report positive net income while cash is tied up in receivables, inventory, or capital spending.
What is the difference between net income and comprehensive income?
Comprehensive income includes items recorded directly in equity rather than through earnings, principally currency translation, certain hedging effects, and some pension adjustments. For a company with substantial foreign operations these can be material. The statement of comprehensive income presents them, and they explain equity movements that net income does not.
How is net income attributable to the parent different from consolidated net income?
Consolidated net income includes the results of subsidiaries the company controls but does not wholly own, and the portion belonging to minority holders is deducted to arrive at the amount attributable to the parent. Per-share figures use the parent portion. For a company with substantial partially owned subsidiaries, using the consolidated figure overstates what accrues to shareholders.
Why can net income be a poor basis for comparing companies?
It sits after financing costs, tax positions, and any non-operating items, all of which differ between companies for reasons unrelated to operating performance. Two companies with identical operations and different capital structures report different net income. Operating measures are more comparable, which is why enterprise-level multiples are preferred for cross-company comparison.