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Accounting encyclopedia · Financial statements

Income statement

An income statement summarizes income, expenses and resulting profit or loss for a defined period. It is often called a profit and loss statement. Its usefulness depends on consistent classification and appropriate recognition of transactions. Accounting profit is not automatically the same as cash generated or taxable income.

Follow revenue through expenses to the result

An income statement describes performance over a period.

Visual labels: Revenue; Expenses; Profit or loss.

Start with the period and the comparison

Confirm whether the report covers a month, a quarter or a full year, and whether the comparison uses an equivalent period. A six-month total should not be read against a twelve-month total as though the periods were identical. Seasonal businesses also need context.

A consistent chart of accounts makes trends easier to understand. If costs move between categories, a change in reported margins may reflect coding rather than a change in operations.

Separate operating questions from timing questions

A business may recognize revenue before a customer pays and record a cost before a supplier bill is settled. Loan principal repayments and owner withdrawals can also reduce cash without being operating expenses on the income statement.

For illustration, invoicing a customer in March and collecting in April can put the sale and receipt in different periods. The timing does not make one report wrong; it means the income statement and cash position answer different questions.

Make the report useful

Discuss unusual movements, missing bills, one-off items and whether the books are complete enough for a decision. Ask which costs are directly associated with revenue and which support the business more broadly.

Tax calculations may adjust accounting results under applicable tax rules. Avoid estimating a final tax balance simply by applying a rate to an unfinished profit report.

Sources & editorial notes

Sources checked October 23, 2026. The examples are illustrative and provide general information. Discuss how the guidance applies to your circumstances with your accountant.

Rules and guidance can change. Use the current official source and confirm the treatment for your facts. To flag an error, contact Sora.