Income Statement

An income statement is a financial statement that reports a company’s revenues and expenses over a defined period, such as a quarter or a year, arriving at a final figure called net income. Where a balance sheet captures a single moment, an income statement captures a stretch of time, showing how a business performed rather than merely where it stands.

How an income statement works

The top line of an income statement is revenue, the amount a company earns from selling goods or services. The bottom line is net income, also called net profit, the amount left over after every revenue and expense has been accounted for. [1] Revenue counts money a company expects from goods or services already delivered to a customer, whether or not that customer has paid yet, and expenses cover the resources used to generate that revenue during the period, including income tax. [1] In its simplest form, the statement is just revenue minus expenses equals net income. [1]

Accrual accounting and the income statement

Most income statements are prepared on an accrual basis, which records revenue when it is earned and expenses when they are incurred, regardless of when cash actually changes hands. A company that delivers a service in December but is paid in January still reports that revenue in December under accrual accounting. The alternative, cash basis accounting, waits until cash is received or paid before recording a transaction. Cash basis is simpler, but it gives a less accurate picture of a period’s performance for any business that extends credit to customers or receives credit from suppliers, which is one reason both US and international accounting standards require accrual accounting in a company’s primary financial statements. Cash basis accounting remains common among very small businesses and for tax reporting in some jurisdictions, where simplicity matters more than precisely matching revenue to the period that earned it.

Types of income statement formats

Companies prepare income statements in one of two formats. A single-step statement subtracts all expenses from all revenues in one calculation, moving straight to the bottom line. A multi-step statement breaks the calculation into stages: gross profit, found by subtracting the cost of goods sold from revenue; income from operations, found by subtracting operating expenses from gross profit; and income before taxes, found after other income and expenses are added or subtracted, before tax is applied to reach net income. [2]

Cost of goods sold covers only the direct costs of making or acquiring what a company actually sold, such as materials, direct labor, and, under absorption costing, a share of factory overhead. It excludes period costs that are not tied to specific units, such as selling expenses, administrative costs, advertising, and research and development. [2] Operating expenses are usually split further into selling expenses and general and administrative expenses, with depreciation and amortization included wherever they apply. [2]

Standards behind the income statement

Income statement presentation is set internationally by the International Accounting Standards Board, which issues International Financial Reporting Standards, and in the United States by the Financial Accounting Standards Board. [2] Both frameworks require that basic and diluted earnings per share appear on the face of the statement, and both now bar companies from labeling any item as extraordinary; the IASB has always barred the category, and the US rule followed in 2015 under Accounting Standards Update 2015-01. [2] A revision to International Accounting Standard 1, effective from January 2009, lets a company present a single statement of comprehensive income or split it into two linked statements instead. [2]

Applications and examples of the income statement

Investors read the income statement to judge whether a company is growing revenue, controlling costs, and converting sales into profit, comparing trends across several periods rather than any single one. Lenders look at operating income to judge whether ordinary business activity, apart from one-time items, generates enough cash to cover interest payments. Company management breaks the statement down by product line or region to see where margins are improving or eroding. A retailer whose revenue rises but whose gross profit margin falls, for instance, is typically cutting prices or absorbing higher supplier costs faster than it is growing sales.

Common ratios built from the income statement include gross margin, gross profit divided by revenue; operating margin, operating income divided by revenue; and net margin, net income divided by revenue. Each is used to compare profitability across companies of different sizes or across the same company’s own history.

Advantages and limitations of the income statement

The income statement’s main advantage is that it isolates operating performance from financing and one-time events when prepared in multi-step format, letting a reader see whether a company’s core business is profitable before accounting for taxes, interest, or unusual items. Its main limitation is that net income is an accounting measure, not a cash measure. A company can report a healthy profit while actually running short of cash, if revenue sits in accounts receivable rather than in the bank, which is why analysts generally read the income statement together with the cash flow statement rather than on its own.

Income statement vs. balance sheet

The clearest way to separate the two is time. A balance sheet reports financial position at a single date, listing what a company owns, owes, and is worth at that moment. An income statement reports financial performance across a period leading up to that date. The connection between them is direct: net income earned during the period becomes part of retained earnings, one of the equity accounts the following balance sheet reports.

Editorially reviewed by Specialty Digest Editorial TeamLast reviewed November 1, 2026Researched and drafted with AI assistanceReport an issue