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2026.10.28 · 4 min read · Tax Guides

How to Read a Small-Business Profit-and-Loss Statement

Learn what a profit-and-loss statement measures, why profit can differ from cash in the bank, and how to investigate changes before making a business decision.

A profit-and-loss statement can tell you whether a business recorded a profit for a particular period, but it cannot tell you the balance in the bank. The distinction matters when you are planning a purchase, reviewing business performance, or organizing records for tax filing. Read the statement as a report of activity over time, then use cash and other financial records to understand what is available to spend.

Follow the statement from revenue to net income

A profit-and-loss statement, also called an income statement, summarizes revenue and expenses over a defined period: a month, quarter, or year, for example. It is not a snapshot taken on the day you open it. A report covering January through March describes activity assigned to those months, while a bank balance reflects money on hand at one point in time.

Revenue is the income recorded from providing goods or services. Expenses are costs recorded in running the business. Depending on how the statement is organized, costs directly connected to delivering a product or service may appear separately from operating expenses such as rent, software, or administrative costs. Subtracting expenses from revenue produces a profit when the result is positive, or a loss when expenses exceed revenue. The labels and level of detail differ between reports, so read the categories as well as the bottom line.

For example, a hypothetical repair shop might show $30,000 in revenue and $18,000 in total expenses for a month, leaving $12,000 in reported profit. That number describes the accounting result for the month; it does not mean the owner can withdraw $12,000. The statement is useful for understanding operating performance and may be one record used while preparing a business tax return, but it answers a different question from “How much cash is available today?”

Why reported profit can differ from available cash

The timing of recorded activity is one reason the figures diverge. Under accrual accounting, revenue may be recorded when it is earned and an expense when it is incurred, rather than when the related money arrives or leaves. If a business completes work and sends an invoice near month-end, the income may appear in that month’s results even though the customer pays later. The statement can therefore show profit while the related cash is still outstanding.

Cash timing can move the other way, too. A business may receive payment for work before the period in which it records the related revenue, depending on its accounting method and the transaction. A payable may also be recorded as an expense before the business sends payment. Looking at unpaid customer invoices and bills alongside the statement helps explain why its profit figure and bank balance do not move in lockstep.

Some cash movements are not ordinary operating expenses on the profit-and-loss statement. Repaying the principal on a loan reduces cash and the loan balance, but it is not generally presented as an operating expense; interest is a separate cost. Buying equipment uses cash, while the statement may recognize its cost over time through depreciation rather than showing the entire purchase as one period’s expense. Depreciation can lower reported profit without a matching current-period cash payment. These distinctions are useful when a business owner is trying to understand whether a strong-looking result can support a planned outlay.

For a neutral local directory reference, Virginia Beach readers can view the Professional Accounting & Income Tax listing.

Use patterns in the statement to find a useful next question

Comparisons are most informative when the periods are comparable. A month should generally be compared with another month or with the same month in a different year, rather than with a full quarter. Check that the accounting method and expense categories have not changed between reports; a category moved or reclassified can look like a business trend even when the underlying spending is similar. Seasonality and one-time transactions can also make two periods look unlike for reasons that do not describe the ordinary operating pattern.

Suppose a hypothetical design studio reports higher revenue this quarter but lower profit. The change does not, by itself, establish that the business is less healthy. Compare the main expense lines with revenue and identify which line moved most. If contractor costs increased, the next useful inquiry might be whether the studio handled more projects or paid different rates; if software costs jumped, check whether a one-time annual charge or additional subscriptions are included. The point is to locate the driver before deciding what the total means.

For a quick proportional comparison, divide an expense line by revenue in each period. If shipping was 8% of revenue last quarter and 12% this quarter, the increased share identifies a change worth examining; it does not explain the cause on its own. Compare the underlying transactions and business context before treating the pattern as a lasting trend. This approach turns the statement from a scorecard into a map for a specific investigation.

When reviewing business records for a tax return, keep the reporting period and accounting basis attached to the statement so its figures can be understood in context. A profit-and-loss report describes income and expenses as recorded; it does not replace supporting records or determine by itself how every item is treated for tax purposes.