How to read a profit and loss statement
A profit and loss statement shows what your business earned, what it spent and what was left over during a set period. Read it from the top down, starting with income, then cost of goods sold, gross profit, operating expenses and net profit. Compare it to last month and last year.
Updated November 2026 · By Pankil Kumar, Managing Partner
Quick facts
- Shows. Income minus expenses over a set period
- Check first. Gross profit as a share of sales
- Compare to. The same month last year, not just last month
What's on a profit and loss statement?
It's also called a P&L or income statement, and it reads like a story from top to bottom.
| Line | What it means | Example |
|---|---|---|
| Income | Everything you billed or sold | $50,000 |
| Cost of goods sold | Direct cost of what you sold | $20,000 |
| Gross profit | Income minus direct costs | $30,000 |
| Operating expenses | Rent, software, wages, insurance | $22,000 |
| Net profit | What's left | $8,000 |
In that example, gross margin is 60% and net margin is 16%.
Which numbers should you look at first?
Start with gross margin. It tells you whether your pricing and direct costs work before overhead gets involved. If gross margin is shrinking while sales rise, you're selling more and keeping less. A price rise or a supplier change does more here than cutting small overhead.
Then scan the expenses for anything that jumped. A new line, or one that's doubled, is either a real change or a mistake. Either way, you want to know.
Why doesn't profit match your bank balance?
Because profit isn't cash. Loan payments, inventory purchases, equipment and owner draws all take cash without appearing as expenses in the same way. Customers who haven't paid are counted as income on accrual books. That's why a profitable business can still run short, and why it matters which accounting method you use. Your balance sheet and a cash flow statement fill in the rest.
How often should you read it?
Monthly, within a few weeks of month end. It only takes 15 minutes, once your accounts are reconciled. Ask three questions. Did I make money? What changed? What do I do about it? If you can't answer those from your report, ask whoever does your books to walk you through it. It's what you're paying them for.
Sources
General information, not tax advice for your situation.
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See our bookkeeping serviceWhat is a good profit margin for a small business?
It varies widely by industry, so compare against your own past results and businesses like yours rather than a universal number.
Is a profit and loss statement the same as an income statement?
Yes. They're two names for the same report, often shortened to P&L.
Does the IRS need my profit and loss statement?
It doesn't usually get filed itself, but it's the basis for your return, and lenders often ask for one.
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