How to read a profit & loss statement
Your profit & loss statement (the P&L, or income statement) answers the question every owner cares about: am I actually making money? Once you can read it line by line, you can spot what's working, what's leaking, and where to act — long before your accountant tells you at year-end.
What it is: the P&L summarizes your revenue and expenses over a period of time — a month, quarter or year — and ends with the number that matters most: net profit. Unlike the balance sheet (a snapshot), the P&L covers a stretch of time.
The P&L, top to bottom
1. Revenue (the top line)
What you earned from sales or services in the period. This is "gross" — before any costs come out. Watch it month over month: is it growing, flat, or seasonal?
2. Cost of goods sold (COGS)
The direct cost of delivering what you sold — materials, inventory, direct labour. For a service business this may be small; for a product or trades business it's often the biggest cost.
3. Gross profit
Revenue minus COGS. This is what's left to run the business, and dividing it by revenue gives your gross margin — one of the most important numbers on the page. A falling gross margin means your costs are rising faster than your prices.
4. Operating expenses
The costs of running the business that aren't tied directly to a sale: rent, wages, software, marketing, insurance, utilities. These are your "overhead."
5. Operating income
Gross profit minus operating expenses — the profit from your core operations, before interest and taxes.
6. Net profit (the bottom line)
What's left after everything, including interest and taxes. This is the number people mean by "the bottom line."
How to actually read it
- Compare periods. One month in isolation means little. Put this month next to last month and the same month last year.
- Read the percentages, not just the dollars. Expenses as a percent of revenue reveal creep that raw numbers hide.
- Watch gross margin. A slipping margin is an early warning that pricing or costs need attention.
- Scan for surprises. An expense line that jumped, or revenue that dipped, is where the story is.
- Remember: profit is not cash. A profitable P&L doesn't guarantee money in the bank — that's what the cash flow statement is for.
Accrual changes what "this month" means. On the accrual basis, revenue and expenses land in the month they're earned or incurred, not when cash moves — so your P&L reflects real performance rather than payment timing. See cash vs accrual accounting.
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This guide is general educational information, not accounting or tax advice.
Frequently asked questions
What is a profit and loss statement?
It is a financial statement summarizing your revenue and expenses over a period of time and ending in net profit. It shows whether the business made or lost money in that period, unlike the balance sheet which is a point-in-time snapshot.
What is the difference between gross profit and net profit?
Gross profit is revenue minus the direct cost of what you sold (COGS). Net profit is what remains after all other expenses, including operating costs, interest and taxes. Gross profit shows product-level profitability; net profit is the true bottom line.
Why is my business profitable but low on cash?
Profit and cash are not the same. Money can be tied up in unpaid invoices, inventory or loan repayments, so a profitable P&L can sit alongside a tight bank balance. The cash flow statement explains the difference.