The Income Statement
How to read the income statement from the top line to the bottom line, what earnings per share really means, and the adjusted numbers and one-time items to watch.
The scoreboard for a period
The income statement, also called the profit and loss statement, shows how much a company sold and how much it earned over a period, usually a quarter or a year. It is the statement most headlines are about: revenue, profit and earnings per share all come from here.
Top line to bottom line
The statement starts with revenue at the top and subtracts costs in layers until it reaches net income at the bottom. That is where the phrases “top line” and “bottom line” come from.
An illustrative income statement. Each layer subtracts another group of costs.
The key lines
| Line | What it means |
|---|---|
| Revenue | Total sales of products and services |
| Cost of revenue | Direct costs of making or delivering what was sold |
| Gross profit | Revenue minus cost of revenue |
| Operating expenses | Research, sales, marketing and administration |
| Operating income | Profit from the core business |
| Interest, other items, taxes | Financing costs, one-time items and income tax |
| Net income | What is left for shareholders |
Line names vary slightly from company to company, but the structure is the same.
Earnings per share
Earnings per share, or EPS, is net income divided by the number of shares outstanding. It tells you how much profit belongs to each share. Diluted EPS also counts shares that could be created from stock options and convertible securities, so it is the more conservative number. EPS is the figure analysts forecast and the “E” in the P/E ratio.
Companies can raise EPS by growing profits or by reducing the share count through buybacks. Check which one is doing the work.
Real numbers from our data
As of September 14, 2026, our fundamentals data showed trailing twelve-month EPS of about $17.94 for Microsoft, $8.71 for Apple and $3.33 for Coca-Cola. Ford showed a loss of about $1.87 per share. EPS by itself does not tell you whether a stock is cheap or expensive; compare it with the share price through the P/E ratio, and with past years to see the trend.
Adjusted vs. reported earnings
Many companies also report “adjusted” or non-GAAP earnings that exclude certain costs, such as stock-based pay, restructuring or one-time charges. Adjusted numbers can give a clearer view of the ongoing business, but they can also make results look better than they are. Official filings must show the standard (GAAP) figures and explain the adjustments. Compare the two and ask whether “one-time” costs keep showing up every year.
What to look for
- Revenue growth over several years.
- Gross and operating margins holding steady or improving.
- Operating expenses growing slower than revenue.
- EPS growth driven by profits, not only by buybacks.
- Large one-time items that distort a single period.
Common mistakes
- Looking only at net income and skipping the lines above it.
- Taking adjusted earnings at face value.
- Ignoring dilution from stock-based pay.
- Comparing one quarter with the previous quarter in a seasonal business.
- Forgetting that profit is not the same as cash; the cash flow statement comes next.
Read several years side by side
A single income statement is a snapshot of one period. The real insight comes from lining up several years or quarters. Is revenue growing steadily? Are gross and operating margins widening or shrinking? Are operating expenses growing faster than sales? Annual reports usually show three years of income statements, and quarterly reports compare with the same quarter a year earlier, so trends are easy to see if you look for them.
Where the income statement can mislead
Revenue recognition rules, one-time gains from selling assets, changes in accounting estimates and tax benefits can all make a single period look better or worse than the underlying business. When a result looks surprisingly good or bad, look for the explanation in the notes and in management’s discussion before drawing conclusions.
Key takeaways
- The income statement shows sales and profit over a period.
- It runs from revenue (top line) to net income (bottom line).
- EPS is net income per share; diluted EPS is the conservative version.
- Adjusted earnings can clarify or flatter; compare them with GAAP figures.
- Check trends across several years, not one period.