Accounting & tax glossary

Profit and loss account

A profit and loss account reports income, costs and the resulting profit or loss over a period.

Why it matters

It helps explain trading performance: how much was sold, what delivery cost and how much overhead the business carried. Comparisons work best when the periods and accounting policies are consistent. Management reports can add budgets and prior-year figures so owners can ask useful questions about the causes of change rather than just read the total.

A practical example

A business may report strong sales but a lower profit because direct costs or salaries increased faster. Looking at gross margin and the main overhead categories helps identify whether the change reflects prices, volume, staffing or a one-off cost.

A common misunderstanding

The report does not show every movement through the bank. Loans, certain asset purchases and collection of old invoices can affect cash differently. Read it with a balance sheet and cash information before deciding how much money is available to spend or withdraw.

Sources & further reading

General information for UK readers, updated 3 November 2026. Examples are illustrative. Tax treatment depends on the facts and current rules; seek advice before making a decision.