An income statement shows what you earned and what you spent over a period of time, and ends with the number that says whether you made money. It’s also called a profit and loss statement, or a P&L, and the three names mean the same thing.
It is the one report to read every single month. The balance sheet tells you what you own at a moment; the income statement tells you how the trading went. And for anyone who delivers their own orders, it’s the only place where the cost of getting goods to a customer sits next to the revenue those goods earned. That comparison decides whether a route, a product, or a wholesale account should stay. This guide walks the statement line by line with real numbers, then shows where the delivery costs belong. If you’re still setting up the books that produce it, start with the bookkeeping basics every owner should know.
The Bottom Line
- An income statement covers a period: a month, a quarter, a year. That’s what makes it different from a balance sheet, which covers a single date.
- The structure is always the same: revenue, minus cost of goods sold, equals gross profit; minus operating expenses, equals operating income; minus interest and tax, equals net income.
- Where you put delivery costs changes what the statement tells you. Costs that scale per order belong in COGS; the fixed fleet costs belong in operating expenses.
- Use the multi-step format. The single-step version skips gross profit, which is the most useful number on the page.
- One month in isolation means almost nothing. The value is in comparing months side by side.
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What an income statement shows, and what it leaves out
An income statement answers one question: over this period, did revenue exceed costs?
It’s one of three core financial statements, and each has a different job.
- The income statement measures performance over a period. Did you trade profitably in October?
- The balance sheet measures position at a point in time. What do you own and owe today?
- The cash flow statement measures money actually moving. Did the bank balance go up?
The important thing the income statement leaves out is cash timing. On accrual accounting, revenue appears when you deliver the order, not when the customer pays. So a month can show a healthy profit while your bank account drains, because the profit is sitting in unpaid invoices, your accounts receivable, rather than in the bank. The report is doing its job there, measuring trading rather than collections.
The income statement format, line by line
Every income statement runs the same ladder. Each rung subtracts something and produces a number worth knowing.
Revenue (also sales, or the top line). Everything you earned from doing business in the period. Split it by how you earn it, so wholesale orders, direct orders and delivery fees each get their own line, because an undifferentiated total hides which part of the business is growing.
Cost of goods sold (COGS). The direct costs of producing and delivering what you sold. Materials, packaging, and the labor that touches the product. These costs rise and fall with volume.
Gross profit. Revenue minus COGS. This is the most important number on the statement for a product business, because it tells you whether the thing you sell makes money before overhead. Expressed as a percentage of revenue, it’s your gross margin.
Operating expenses. The cost of being in business regardless of volume: rent, utilities, software, insurance, marketing, administrative wages, professional fees. Often abbreviated to OpEx, and sometimes shown as SG&A.
Operating income. Gross profit minus operating expenses. Also called EBIT. This is the profitability of the actual business, before financing and tax.
Interest and taxes. Loan interest, then income tax.
Net income. The bottom line. What’s left.
A worked income statement example
Here’s an illustrative month for a wholesale bakery delivering to 30 cafés on its own vans. The numbers are made up for teaching. The structure is exactly what your software will produce.
| Line item | Amount | % of revenue |
|---|---|---|
| Revenue | ||
| Wholesale orders | $68,400 | 85.5% |
| Direct and retail orders | $9,200 | 11.5% |
| Delivery fees charged | $2,400 | 3.0% |
| Total revenue | $80,000 | 100% |
| Cost of goods sold | ||
| Ingredients and materials | $24,800 | 31.0% |
| Packaging | $4,000 | 5.0% |
| Production labor | $13,600 | 17.0% |
| Delivery labor and fuel | $7,200 | 9.0% |
| Total COGS | $49,600 | 62.0% |
| Gross profit | $30,400 | 38.0% |
| Operating expenses | ||
| Rent and utilities | $8,400 | 10.5% |
| Vehicle lease, insurance, maintenance | $3,200 | 4.0% |
| Software and subscriptions | $900 | 1.1% |
| Admin wages | $6,000 | 7.5% |
| Marketing | $1,200 | 1.5% |
| Professional fees | $600 | 0.8% |
| Total operating expenses | $20,300 | 25.4% |
| Operating income | $10,100 | 12.6% |
| Interest | $400 | 0.5% |
| Taxes | $2,100 | 2.6% |
| Net income | $7,600 | 9.5% |
Read the percentage column, not the dollar column. Dollars tell you what happened; percentages tell you whether it’s getting better or worse. If ingredients move from 31% to 35% of revenue over three months, you have a pricing or a waste problem, and you can see it long before the bottom line gets ugly.
Notice the two places delivery appears. Labor and fuel are inside COGS at 9% of revenue, because they scale with the number of stops. The vans themselves (lease, insurance, maintenance) sit in operating expenses, because you pay for them whether you deliver 10 orders or 400.
Where delivery, driver, and packaging costs belong
This is the decision that most often makes an income statement useless, and it takes about ten minutes to get right.
In cost of goods sold: anything that scales with the order.
- Packaging and boxes. One more order means one more box.
- Fuel for delivery routes.
- Driver hours or per-delivery contractor payments.
- Third-party courier fees for specific orders.
In operating expenses: anything you pay regardless of volume.
- Vehicle lease or depreciation.
- Fleet insurance and registration.
- Scheduled maintenance.
- Routing or dispatch software subscriptions.
Why it matters: putting per-order delivery costs into overhead inflates your gross margin and makes every product look more profitable than it is. A bakery showing 47% gross margin because fuel and driver hours were parked in operating expenses will happily accept a wholesale order that loses money on the drive. The same business, with those costs in COGS, sees 38% and prices accordingly.
Once the categories are right, you can go a step further and calculate a cost per delivery: total delivery labor and fuel divided by the number of stops. In the example above that’s $7,200 across roughly 600 monthly stops, or about $12 a stop. That single number tells you which small orders aren’t worth the drive and which customers should be on a less frequent schedule. For the wider setup that makes this possible — the chart of accounts, the method, the monthly close — see the guide to small business accounting when you deliver your own orders.
Single-step vs multi-step income statements
Two formats exist, and the choice isn’t really a close call.
A single-step income statement does one subtraction: total revenue minus total expenses equals net income. It’s compact and it’s fine for a freelancer or a service business with no cost of goods.
A multi-step income statement separates operating from non-operating activity and calculates the intermediate figures, gross profit and operating income, along the way.
| Single-step | Multi-step | |
|---|---|---|
| Calculations | One | Several |
| Shows gross profit | No | Yes |
| Shows operating income | No | Yes |
| Separates COGS from overhead | No | Yes |
| Best for | Service businesses, no inventory | Any business selling physical goods |
If you sell and deliver physical products, use multi-step. Gross profit is the number that tells you whether your pricing works, and the single-step format simply doesn’t produce it.
How to read your own income statement in five minutes
Monthly routine, five lines, in this order.
Gross margin percentage. Compare it to the last three months. A declining gross margin on flat revenue means your costs are rising faster than your prices. This is the earliest warning the statement gives you.
Revenue mix. Which channel grew? Wholesale growing while direct shrinks is a different business than the reverse, with different cash flow and different delivery demands.
The biggest operating expense line, and its direction. One line usually dominates. Know which, and know whether it’s trending up as a share of revenue.
Operating income. This is the real profitability of the business. Net income gets muddied by interest and tax timing; operating income doesn’t.
Anything that moved more than 20% versus last month. Investigate it. Either something changed and you should act on it, or a transaction got miscategorized and you should fix it.
Two cross-checks take an extra minute each. A rising cost of goods with flat revenue usually points at supplier price increases that never got passed through, which is where your accounts payable records earn their keep, because the bills tell you exactly when prices moved. And profit on the statement with nothing in the bank points at collections, not trading. In QuickBooks’ 2026 late payments research, 59% of businesses had invoices overdue by 30 days or more, up from 47% a year earlier, and firms with unpaid invoices were owed $17,700 on average (Intuit QuickBooks). A profitable P&L and an empty account is the most common version of that story.
Income statement vs balance sheet: the difference in one line
The income statement covers a period. The balance sheet covers a date.
That’s the whole distinction, and it has a practical consequence. Your October income statement can show $7,600 of net income while your balance sheet shows $31,000 sitting in accounts receivable and $4,000 in the bank. Both are accurate. The first says the month traded well; the second says you haven’t been paid for it yet.
The two connect at a single point: net income from the income statement flows into retained earnings on the balance sheet. Every profitable period increases equity; every loss reduces it.
Frequently asked questions
What is an income statement in simple terms?
It’s a report showing your revenue, your costs, and the profit or loss left over across a period of time, usually a month, a quarter, or a year. Profit and loss statement and P&L are other names for the same report.
What’s the difference between gross profit and net income?
Gross profit is revenue minus the direct cost of making and delivering what you sold. Net income is what remains after overhead, interest, and tax come out too. Gross profit tells you whether your product and pricing work; net income tells you whether the whole business works.
Should delivery costs go in COGS or operating expenses?
Split them. Costs that scale per order (fuel, driver hours, packaging, per-delivery courier fees) belong in cost of goods sold. Fixed fleet costs like vehicle leases, insurance, and maintenance belong in operating expenses. Putting the variable costs in overhead overstates your gross margin.
How often should I look at my income statement?
Monthly, as part of closing the books, and always next to the previous two or three months. A single month in isolation has no context, and the useful signals are all trends.
Why does my income statement show a profit when I have no cash?
Because accrual accounting records revenue when you deliver the order, not when the customer pays. Profit that hasn’t been collected sits in accounts receivable. Compare the statement against your aging report to see exactly how much of the month’s profit is still outstanding.
Make it a monthly habit, not an annual event
An income statement that gets read once a year at tax time is a historical document. The same report read monthly is an early warning system: gross margin slipping, one expense line creeping, a channel shrinking before anyone notices.
Set the categories up properly once, with delivery costs where they belong, and the statement starts answering the question you actually care about: not just whether the business made money, but which orders and which routes made it.
