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Income Statement

The income statement shows a company's revenue, costs and profit over a period. Learn each line from revenue to EPS, a worked example and what traders watch.

Intermediate3 min readUpdated 3 Oct 2026
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Lesson 2 of 45

The income statement, also called the profit and loss statement (P&L), shows how much a company earned and spent over a period, such as a quarter or a year. It starts with revenue at the top and subtracts costs step by step until it reaches net income, the "bottom line". Earnings per share, the most watched number in earnings season, comes from the income statement. Learning to read each line helps traders see not just whether a company made money, but how and whether that is sustainable.

The structure#

LineMeaning
Revenue (sales)Money earned from selling goods and services
Cost of goods sold (COGS)Direct costs of producing what was sold
Gross profitRevenue minus COGS
Operating expensesSelling, general and administrative (SG&A), research and development (R&D)
Operating income (EBIT)Gross profit minus operating expenses
Interest expense and other itemsFinancing costs, investment income, one off gains and losses
Pre tax incomeOperating income after interest and other items
Income taxTaxes on profit
Net incomeProfit after all expenses and taxes
Earnings per share (EPS)Net income divided by shares outstanding

A worked example#

Key lines in detail#

  • Revenue: growth rate and quality matter most. See Revenue and Gross Profit.
  • Gross profit and gross margin: reflect pricing power and production efficiency.
  • Operating expenses: R&D and marketing can be investments in future growth.
  • Operating income (EBIT): profit from the core business. See Operating Income, EBIT and EBITDA.
  • Net income and EPS: what shareholders earn. See Net Income and EPS.

Non cash and one off items#

Income statements include non cash charges such as depreciation, amortisation and stock based compensation, and one off items such as restructuring costs, impairments or gains on asset sales. Companies often present adjusted figures that exclude these. Traders should understand what is excluded and whether "one off" charges recur every year. See Earnings Quality and Cash Conversion.

What traders watch#

MetricWhy
Revenue vs consensusGrowth surprises move stocks. See Analyst Estimates, Surprises and Whisper Numbers
EPS vs consensusThe headline beat or miss
Margins vs last yearSigns of pricing power or cost pressure
Operating leverageProfit growing faster than revenue. See Operating and Financial Leverage
Segment resultsWhich parts of the business drive growth
Share countDilution or buybacks. See Buybacks

Year over year and sequential comparisons#

Many businesses are seasonal, so traders compare a quarter with the same quarter last year (year over year) rather than the previous quarter (sequential). Retailers, for example, earn much of their profit in the holiday quarter.

Limits of the income statement#

  • Accrual accounting recognises revenue when earned, not when cash is received, so profit can differ from cash. See Cash Flow Statement.
  • Accounting choices affect reported profit, such as depreciation periods and revenue recognition.
  • It does not show debt levels or asset quality; for that, read the Balance Sheet.

Frequently asked questions#

What is an income statement?#

A financial statement that shows a company's revenue, expenses and profit over a period, ending with net income and earnings per share.

What is the difference between gross profit and net income?#

Gross profit is revenue minus the direct cost of goods sold; net income is what remains after all expenses, interest and taxes.

Why do companies report adjusted earnings?#

To exclude items management considers unusual or non cash, though these adjustments can sometimes make results look better than they are.

Next, learn what a company owns and owes in the Balance Sheet.

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Next lessonBalance SheetThe balance sheet shows what a company owns, owes and the equity left for shareholders. Learn the main items, key ratios and red flags traders look for.

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