Income Statement (P&L): How to Read a Profit and Loss Statement
Listen to this article
The income statement, also called the profit and loss statement or P&L, answers the question every owner asks: did the business actually make money? It lines up what came in against what went out over a month, a quarter, or a year, and shows the profit or loss at the bottom.
This guide explains each line of the income statement in plain English, walks through an illustrative example for a small print shop, and shows the quick checks that make it useful.
What Is an Income Statement?
An income statement is a report of a business’s revenue, expenses, and profit over a period of time.
It’s one of the three core financial statements. The balance sheet shows what you own and owe on one day. The cash flow statement shows how cash moved. The income statement shows whether you earned more than you spent.
You’ll hear it called many things: income statement, P&L, profit and loss statement, statement of operations, or statement of earnings. They all mean the same report.
The Lines on an Income Statement
Most small business income statements follow the same order, from top to bottom:
- Revenue (sales): everything you billed or sold during the period.
- Cost of goods sold (COGS): the direct cost of what you sold, such as materials and direct labor. See cost of goods sold.
- Gross profit: revenue minus COGS.
- Operating expenses: the costs of running the business, like rent, wages for non-production staff, software, insurance, and marketing.
- Operating profit: gross profit minus operating expenses.
- Other income and expenses: items outside normal operations, such as loan interest.
- Taxes: income taxes, if the business itself pays them.
- Net profit (net income): the bottom line.
The Income Statement Formula
At its simplest:
Net profit = Revenue − All expenses
Broken into its layers:
Gross profit = Revenue − Cost of goods sold
Operating profit = Gross profit − Operating expenses
Net profit = Operating profit − Interest − Taxes ± Other items
Worked Example: A Small Print Shop
Here’s a quarterly income statement for a print shop that makes signs, banners, and business cards. All figures are illustrative.
| Line | Amount | % of revenue |
|---|---|---|
| Revenue | $90,000 | 100% |
| Cost of goods sold (ink, vinyl, paper, press labor) | $40,500 | 45% |
| Gross profit | $49,500 | 55% |
| Rent | $9,000 | 10% |
| Front desk and design wages | $18,000 | 20% |
| Software, insurance, utilities | $5,400 | 6% |
| Marketing | $3,600 | 4% |
| Depreciation on the printers | $2,700 | 3% |
| Operating profit | $10,800 | 12% |
| Interest on equipment loan | $1,800 | 2% |
| Net profit before owner taxes | $9,000 | 10% |
The percentage column is the most useful part. Expressing each line as a share of revenue lets the owner compare quarters even when sales go up or down.
What the numbers say:
- Gross margin is 55%. For every $100 of sales, $55 is left after direct costs to pay for everything else. The gross profit margin post explains how to read it.
- Wages are the biggest operating cost at 20%. If sales dip, this is the line that squeezes profit hardest.
- Net margin is 10%. The shop keeps $10 of every $100 in sales.
If the shop is a sole proprietorship or an LLC taxed as one, income taxes are paid by the owner personally, so they don’t appear on the business P&L.
How to Use Your P&L
- Compare it with last month and last year. One P&L on its own says little. Trends tell the story.
- Watch the percentages. If COGS jumps from 45% to 52% of revenue, materials or waste have gone up, even if sales also grew.
- Read it with your cash. A P&L can show a profit while the bank account shrinks, especially if customers pay slowly. That’s covered in cash flow vs profit.
- Use it to price. If net margin is thin, your prices may be too low. The free business calculators help you test new prices and margins.
Common Mistakes
- Putting owner’s draws on the P&L. For sole proprietors and partners, money you take out isn’t an expense. It’s a draw from equity.
- Recording loan payments as expenses. Only the interest is an expense. The principal reduces the loan on the balance sheet.
- Mixing up COGS and operating expenses. Putting rent in COGS or materials in operating expenses distorts your gross margin.
- Expensing big equipment purchases all at once on your own reports. Depreciation spreads the cost so one quarter doesn’t look like a disaster.
- Only looking once a year at tax time. By then it’s too late to fix anything. A monthly review catches problems early.
Frequently Asked Questions
Is a P&L the same as an income statement?
Yes. Profit and loss statement, P&L, and income statement are different names for the same report.
What is the difference between gross profit and net profit?
Gross profit is revenue minus the direct cost of what you sold. Net profit is what’s left after every expense, including rent, wages, interest, and taxes.
How often should I run an income statement?
Monthly is a good rhythm for most small businesses. It’s frequent enough to spot problems and simple to produce with bookkeeping software.
Does the income statement show cash?
No. It shows revenue and expenses, which may not match cash in and out. Unpaid invoices, loan principal, and equipment purchases all cause gaps.
Can a profitable business run out of money?
Yes. If customers pay slowly or a lot of cash goes into inventory or loan payments, the P&L can show a profit while the bank balance falls.
