A profit and loss statement (P&L), also called an income statement, reports a business's revenue, costs and profit over a period such as a month, quarter or year. It shows whether the work you did made money, not how much cash you have.
Also called: P&L, Income statement, Profit and loss report
Every P&L reads top to bottom, each line feeding the next:
| Line | What goes in it |
|---|---|
| Revenue | The work billed in the period: service calls, installs, maintenance plans, change orders |
| Cost of goods sold | What the jobs cost: materials, equipment, field labor with its payroll costs, subcontractors, permits, disposal |
| Gross profit | Revenue minus cost of goods sold |
| Overhead | The cost of being open: office wages, rent, insurance, marketing, software, phones |
| Net profit | Gross profit minus overhead and other costs, such as loan interest |
Read it in that order. Gross profit tells you whether your prices cover what the work costs, overhead is what it costs to stay in business, and net profit is what's left.
Example: A roofing company's month, in round, made-up numbers. Revenue is $80,000. Materials, crew labor, dumpsters and permits come to $56,000, leaving $24,000 of gross profit, a 30% gross margin. Overhead is $16,000, so net profit is $8,000, or 10% of revenue. At that overhead and margin, the company needs about $53,300 of revenue a month ($16,000 ÷ 0.30) just to break even.
Check the report's basis before you read a single line, because the same month can look very different:
A roof finished on March 30 and paid for in April lands in March on an accrual P&L and in April on a cash one. Accrual is the clearer view for judging prices and crews. Which method your tax return uses is a separate decision with its own rules; make it with your CPA.
Gross profit is revenue minus cost of goods sold, and as a share of revenue it's your gross margin. Overhead decides how much of it you keep, and your break-even point is the revenue where gross profit just covers overhead. Cash flow explains why a profitable month can still leave the bank account short. If you file a Schedule C, your CPA maps your P&L accounts to the form at year end, so organize the monthly report for decisions, not for the form. How to read a profit and loss statement walks through a full sample P&L and a monthly review routine.