Who this is for: Cambridge IGCSE Business Studies (0450) students who want income statements — revenue, cost of sales, gross profit, expenses and profit for the year — to become a reliable source of marks instead of account lines they mislabel or miscalculate.
What query it owns: how to understand and revise income statements in Cambridge IGCSE Business Studies.
Why this is safe: this page owns the income-statements revision-guide angle, while Tutopiya’s Income Statements subtopic page owns the learning resource and the free Income Statements quiz owns the practice.

Income statements show whether a business made a profit or loss over a trading period by comparing revenue with costs. Cambridge IGCSE Business Studies (0450) expects you to construct or interpret income statements, calculate gross profit and profit for the year and explain what each line means. This guide links each section to the command words examiners use, so you can answer calculate, define and interpret questions with confidence.

Key takeaways

• Revenue (sales turnover) is the total value of goods or services sold.
• Cost of sales is the direct cost of producing or buying the goods sold.
• Gross profit = revenue − cost of sales.
• Profit for the year = gross profit − expenses (overheads such as rent, wages, marketing).
• An income statement covers a period (e.g. one year); it shows performance, not what the business owns.

What is an income statement in Cambridge IGCSE Business Studies?

An income statement (also called a profit and loss account) records a business’s revenue, costs and profit over a financial period. It starts with sales revenue, deducts cost of sales to find gross profit, then deducts expenses to arrive at profit for the year. In Cambridge IGCSE Business Studies (0450), you must know the layout, complete missing figures and explain what rising or falling profit means for stakeholders.

Read the full explanation on Tutopiya’s Income Statements subtopic page before you attempt questions.

Layout of an income statement

Line	Formula / definition	Example ($)
Revenue	Total sales value	200 000
Cost of sales	Direct costs of goods sold	(120 000)
Gross profit	Revenue − cost of sales	80 000
Expenses	Overheads (rent, wages, marketing)	(50 000)
Profit for the year	Gross profit − expenses	30 000

Gross profit vs profit for the year

Measure	What it shows	What is deducted
Gross profit	Profit after direct production/purchase costs	Cost of sales only
Profit for the year	Final profit after all operating costs	Cost of sales + all expenses

How to complete an income statement — step by step

1. Write revenue (total sales) at the top.
2. Deduct cost of sales to calculate gross profit.
3. List expenses (rent, wages, insurance, marketing, etc.).
4. Deduct total expenses from gross profit to find profit for the year.
5. Check arithmetic — each subtraction should be shown clearly.
6. Test yourself with the free Income Statements quiz.

Income statements in past-paper wording: command words that matter

Command word / phrase	What the question wants	Typical income statement stem
Calculate	Show working for a figure	”Calculate the gross profit for the year.”
Complete	Fill in missing values	”Complete the income statement for Year 2.”
Define	Precise meaning	”Define cost of sales.”
Explain	Developed reasoning	”Explain two reasons why gross profit fell.”
Identify	Pick from the statement	”Identify the largest expense.”
Interpret	Explain what figures mean	”Interpret the change in profit for the year.”

Worked exam-style stems (how to answer the wording)

1. “Revenue is $150 000 and cost of sales is $90 000. Calculate the gross profit.” Gross profit = $150 000 − $90 000 = $60 000. Mark-scheme reward: correct subtraction with label.
2. “Gross profit is $60 000 and expenses are $45 000. Calculate the profit for the year.” Profit for the year = $60 000 − $45 000 = $15 000. Reward: correct final figure labelled.
3. “Explain two reasons why profit for the year might have fallen even though revenue increased.” Cost of sales may have risen (higher material costs), reducing gross profit; expenses such as wages or rent may have increased. Reward: reason + developed explanation linked to the income statement.

Work through more stems on the Income Statements quiz.

How income statements connect to Financial Information and Decisions

The income statement pairs with the Statement Of Financial Position — profit for the year increases capital on the balance sheet. It differs from Cash Flow Forecasting And Working Capital because profit includes credit sales while cash flow tracks actual money. The Cambridge IGCSE Business Studies resource hub links every Financial Information subtopic.

Common mistakes students make

• Confusing revenue with profit — revenue is total sales before any costs.
• Including expenses in cost of sales — cost of sales is direct costs only.
• Forgetting that a loss occurs when expenses exceed gross profit.
• Mixing up the income statement (performance over time) with the statement of financial position (snapshot of assets and liabilities).
• Not showing working on calculate questions — method marks are available.

When you need more support

If income statement questions keep costing marks, work through the Income Statements quiz, then get focused help from a Cambridge IGCSE Business Studies tutor.

Frequently asked questions

What is the difference between gross profit and profit for the year? Gross profit is revenue minus cost of sales. Profit for the year is gross profit minus all other expenses (overheads).

What is cost of sales? The direct cost of producing or purchasing the goods that were sold during the period, such as raw materials and direct labour.

Can a business have high revenue but low profit? Yes — if cost of sales or expenses are high, revenue may grow while profit falls or becomes a loss.

How do I revise income statements effectively? Learn the layout in order, practise calculating each line, then take the Income Statements quiz.

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