Income
Statements
What profit is and why it matters, the income statement structure, profit vs cash, reading and interpreting income statements, and using them to make business decisions.
📖 Click any section to open it and start revising.
💡 How Profit is Made — Interactive Flow
Click each step to see what it means and an example calculation.
Total income from selling goods or services. Formula: Selling Price × Quantity Sold
Example: A bakery sells 10,000 loaves at $3 each → Revenue = $30,000
⚠️ Revenue does NOT include profit from selling assets or other non-trading income.
Direct costs only: raw materials, packaging, direct labour. Formula: Opening Stock + Purchases − Closing Stock
Example (bakery): flour, sugar, yeast, packaging and bakers’ wages = $18,000
⚠️ Does NOT include rent, admin, salaries of managers — those are overheads.
Revenue minus Cost of Sales. Shows how much is left after direct costs — before any overhead. Formula: Revenue − Cost of Sales
Bakery example: $30,000 − $18,000 = $12,000 Gross Profit
A high GP means the business sells at a strong markup over its direct costs.
Indirect costs not tied to production: rent, managers’ salaries, marketing, insurance, utility bills, interest on loans, depreciation.
Bakery example: rent $3,000 + manager salary $4,000 + marketing $1,000 = $8,000 Expenses
⚠️ If overheads are very high, even a strong gross profit can shrink to a small net profit.
The ‘bottom line’ — what’s left after ALL costs. Formula: Gross Profit − Total Expenses
Bakery example: $12,000 − $8,000 = $4,000 Net Profit
Net profit is then split between: Corporation Tax → Dividends to shareholders → Retained Profit.
Why Profit Matters — 6 Key Reasons
Click each card to see a real-world example that brings it to life.
Entrepreneurs invest time, money and effort — profit is the return for taking financial and personal risk.
James Dyson spent 15 years and his entire savings developing the bagless vacuum cleaner — facing repeated failure. Profit was the reward that made that risk worthwhile.
Retained profit funds expansion, new equipment and R&D without needing external borrowing.
Apple has used retained profits to self-fund billions in R&D for new products — no loan interest, no loss of control. Retained profit is why large profitable businesses rarely need to borrow.
Rising profits attract investors, lenders and skilled employees — signals the business is performing well.
When a company reports rising profits, its share price typically rises — investors see it as a signal to buy. Falling profits do the reverse, even if the business is still profitable.
Companies distribute a share of profit to shareholders as dividends — the reward for investing.
Shareholders in listed companies like Unilever receive quarterly dividend payments funded from net profit. No profit = no dividends = shareholders may sell their shares.
Without profit, a business cannot cover long-term costs and will eventually fail.
Many start-ups survive early losses using investor funding — but without a path to profitability, they eventually collapse. Blockbuster made losses for years before finally closing all stores.
Used to compare performance over time (trend) and against competitors (benchmarking).
A supermarket compares its net profit margin against rivals — if Tesco has 4% NPM and Sainsbury’s has 2.5%, Tesco is more efficient at converting sales into profit, regardless of which has higher revenue.
🧮 Revenue Calculator — Price × Quantity
Adjust the selling price and units sold to see how revenue changes — and how it flows through to profit.
📉 Loss vs Profit — What Happens When Costs Exceed Revenue?
- Surplus after all costs paid
- Can fund investment and growth
- Attracts investors and lenders
- Pays dividends to shareholders
- Retained profit builds reserves
- Costs exceed what the business earns
- Must be funded by savings, loans or investors
- Cannot pay dividends
- Erodes reserves over time
- If sustained, leads to business failure
A new business often makes losses in its early years while building a customer base. It survives by using start-up capital, investor funding or loans. Amazon made losses for years while investing in growth.
No business can sustain losses indefinitely. Once savings and borrowing are exhausted, the business becomes insolvent and must close. Profitability is essential for long-term survival.
🎯 COGS vs Overheads — Classify the Costs
Drag each cost into the correct column. This is one of the most commonly confused areas in exams.
In exam answers about why profit matters, always aim for at least two distinct reasons: the most powerful are reward for risk-taking, retained profit as a source of finance, and signal of business health.
- Revenue minus costs over a period of time
- Appears in the Income Statement
- Profit is EARNED when a sale is made — regardless of when payment is received
- A business can be profitable but still run out of cash
- Profit does NOT equal money in the bank
- Money physically available at a point in time
- Appears in the Cash Flow Statement and Balance Sheet
- Cash is RECEIVED when the customer actually pays
- A business can have cash but still be making a loss
- Cash does NOT equal profit
🔍 Worked Example — Why Profit ≠ Cash
A furniture business sells a sofa worth $2,000 on 90-day trade credit. Step through what happens:
A furniture business sells a sofa for $2,000 to a customer on 90-day trade credit — the customer pays in 3 months.
Both the profit AND the cash question now play out differently…
The $2,000 sale is recorded as revenue immediately — the moment the sale is agreed.
The business shows a PROFIT on that sale right now, even though no cash has been received yet.
No cash has been received yet. The $2,000 will not arrive for 3 months.
Meanwhile, the business still needs to pay its own suppliers, wages, and rent — in cash — right now.
The business is profitable (the sale is recorded) but may face a cash shortage if it cannot pay its own bills while waiting to be paid.
This is one of the most common causes of business failure — even profitable businesses can become insolvent if cash runs out.
🎯 Quick Check — Profit or Cash Problem?
Click each scenario to reveal whether it’s a profit issue, a cash issue, or both.
Revenue is recorded (profitable), but cash hasn’t arrived yet. Classic timing mismatch — profitable but illiquid.
Cash exists (for now) but costs exceed revenue — the business is making a loss. Without profitability, cash will eventually run out.
Overtrading: expanding faster than cash flow can support. Even if sales are growing (profitability improving), cash has run out before revenue arrives.
Profit ≠ Cash is one of the most tested concepts at IGCSE. A business can be profitable but insolvent. Always remember: profit is recorded when the sale is made; cash arrives when the customer pays.
Constructing income statements will NOT be assessed in IGCSE Business Studies. You only need to READ, INTERPRET and USE income statement data to make business decisions.
📋 Interactive Income Statement
Click any row to see what it means, its formula, and what to look for in an exam.
Total income from trading activity. Does NOT include proceeds from selling assets or investments.
Direct costs only: raw materials, packaging, direct labour. Does NOT include rent, admin or management salaries.
Profit from trading before deducting overheads. GPM here = 200,000 ÷ 500,000 × 100 = 40%.
Indirect costs not directly tied to production. A large difference between GPM and NPM signals high overhead costs.
The ‘bottom line’. NPM = 80,000 ÷ 500,000 × 100 = 16%. Split between: Tax → Dividends → Retained Profit.
Paid to the government on net profit. Rate varies by country and year. Here: $20,000 tax on $80,000 profit = 25% tax rate.
The most important internal source of finance. Kept in the business to fund investment, expansion and equipment. Shown as reserves in the balance sheet.
📐 Line Items — Formula & Examples
| Line Item | Formula | What It Shows / Examples |
|---|---|---|
| Revenue | Selling Price × Qty Sold | Total trading income. e.g. 10,000 loaves × $3 = $30,000 |
| Cost of Sales | Opening Stock + Purchases − Closing Stock | Direct costs only — flour, sugar, bakers’ wages. NOT rent. |
| Gross Profit | Revenue − Cost of Sales | Profit before overheads. High GP = strong product markup. |
| Expenses | Sum of all overheads | Rent, manager salaries, marketing, insurance, interest, depreciation. |
| Net Profit | Gross Profit − Expenses | The bottom line — used for NPM and ROCE calculations. |
| Tax | % of Net Profit | Corporation tax — set by government, deducted before retained profit. |
| Retained Profit | Net Profit − Tax − Dividends | Most important internal finance source. Funds growth and investment. |
Learn the order: Revenue → Cost of Sales → Gross Profit → Expenses → Net Profit → Tax → Retained Profit. You must know every line item and what it includes (and excludes).
📊 Worked Example — TechStyle Ltd
Click each analysis question to reveal the answer and exam technique.
GPM = 320,000 ÷ 800,000 × 100 = 40%
For every $1 of revenue, 40 cents is gross profit — strong markup over direct costs.
NPM = 120,000 ÷ 800,000 × 100 = 15%
Only 15 cents of every $1 reaches net profit — suggests high overhead costs eating into gross profit.
GPM = 40% but NPM = 15%. The 25 percentage point gap shows that overheads ($200,000) are consuming a large portion of gross profit.
Decision: Management should investigate which overheads can be reduced to improve net profit margin. GPM is healthy — this is an overhead problem, not a cost of sales problem.
$96,000 is kept in the business after paying tax ($24,000). No dividends are shown here, so the full post-tax profit is retained.
This retained profit can fund investment, expansion, new equipment — without needing to borrow externally or issue new shares.
📅 Year-on-Year Comparison
Compare two years of data — click each metric to see what the change tells us.
| Item | Year 1 ($) | Year 2 ($) | Change |
|---|---|---|---|
| Revenue | 600,000 | 720,000 | ↑ +20% |
| Cost of Sales | 360,000 | 468,000 | ↑ +30% |
| Gross Profit | 240,000 | 252,000 | ↑ +5% |
| Expenses | 120,000 | 120,000 | → 0% |
| Net Profit | 120,000 | 132,000 | ↑ +10% |
Sales have grown significantly — possibly from new customers, higher prices, or expanded product range. This is positive, but only if profit margins are maintained.
COGS is rising faster than revenue (+30% vs +20%). This is a concern — raw material costs or direct labour may be rising. Gross profit margin will fall as a result.
Absolute gross profit rose slightly, but GPM fell: Year 1 = 40%, Year 2 = 35%. Revenue grew but cost of sales grew faster — the business is selling more but keeping less per $1.
Overheads held constant despite 20% revenue growth — this is positive. Fixed costs (like rent) aren’t rising with output, improving net profit margin efficiency.
Net profit rose in absolute terms. But NPM fell slightly: Year 1 = 20%, Year 2 = 18.3%. Revenue growth is outpacing GP growth — management should investigate COGS to protect margins.
🧠 How to USE an Income Statement
Study each income statement below. Click the figure or line that reveals the key problem — then see what a manager should do about it.
GPM = 80,000 ÷ 400,000 × 100 = 20% — very low for a bakery. Cost of Sales ($320,000) is 80% of revenue, meaning raw materials and direct labour are eating most of the income.
GPM = 70% — excellent. But NPM = 50,000 ÷ 900,000 × 100 = 5.6% — very poor. Expenses of $580,000 are consuming 92% of the gross profit. The gym’s rent, staff wages and marketing costs are far too high relative to revenue.
Net profit looks flat — unchanged at $180,000. But GPM has fallen from 60% to 50% as revenue grew +20% while COGS grew +50%. The business is selling more but keeping less per $1. If this trend continues, margins will keep shrinking even as revenue rises.
Use the sliders to simulate a business decision and see the live impact on the income statement and profit margins.
PeakStyle Ltd has a GPM of 48% but NPM of only 6%. Drag the correct actions into the recommendation box — reject the ones that won’t help.
GPM = 48% (strong — direct costs controlled well)
NPM = 6% (very poor — something is eating gross profit)
Overheads = $420,000 on revenue of $1,000,000
The same income statement — but what each stakeholder focuses on is completely different. Click a stakeholder to see their perspective.
NPM = 120,000 ÷ 1,200,000 × 100 = 10%. Is this a good return? Depends on ROCE vs alternatives. Retained profit of $90,000 funds future growth — good for share value long-term. Key question: is the business worth holding, or should funds go elsewhere?
Net profit of $120,000 shows the business generates surplus after all costs. The bank checks if this is enough to cover loan repayments + interest. Expenses of $360,000 already include interest — how much of that is loan interest? If interest is a large share, capacity to take on more debt is limited.
GPM = 40%, NPM = 10%. The 30-point gap means overheads ($360k) are consuming 75% of gross profit. Manager’s priority: identify which overhead lines are rising and investigate cost reduction. Revenue grew — but are margins improving or eroding?
Net profit of $120,000 and retained profit of $90,000 suggest the business can afford a pay rise. However, employees would also note that expenses ($360k) likely include staff wages already — a pay rise would further reduce net profit. Unions would use this to argue for a share of the retained profit.
Revenue of $1.2m and positive net profit both indicate NovaCraft is trading well. The supplier would feel confident offering trade credit. However, they’d want to also check the balance sheet (cash position) — profit doesn’t guarantee cash is available right now to pay invoices.
For analysis questions: always identify the figure → judge if good/bad → explain WHY using numbers from the data. Don’t just state “profit fell” — say by how much, what caused it, and what the business should do about it.
| Topic | Key Point |
|---|---|
| Profit | Revenue minus total costs — the financial reward for risk-taking and enterprise |
| Revenue | Total income from sales = Selling Price × Quantity Sold |
| Cost of Sales | Direct production costs only (materials + direct labour) — NOT overheads |
| Gross Profit | Revenue − Cost of Sales — profit before overheads are deducted |
| Expenses | Indirect costs: rent, salaries, marketing, admin, interest, depreciation |
| Net Profit | Gross Profit − Expenses — the bottom line / overall profit for the year |
| Retained Profit | Net profit kept after tax + dividends — key internal finance source, NO interest, NO repayment |
| Income Statement | Financial document showing revenue, costs and profit over a period (usually 1 year) |
| Profit vs Cash | Profit = earned when sale made; Cash = received when customer pays — NOT the same |
| Why profit matters | Reward for risk, source of finance (retained), signal of performance, fund investment |
Overhead problem — cost of sales is fine but indirect costs (rent, salaries) are too high.
Cost of sales problem — raw material costs or direct labour are too high relative to revenue.
Most important internal source of finance — no interest, no repayment, no loss of control.
Profit recorded when sale made. Cash arrives when customer pays. Trade credit creates the gap.
Revenue → COGS → Gross Profit → Expenses → Net Profit → Tax → Retained Profit.
Figure → judge (good/bad) → explain WHY using numbers from the data → suggest action.
BrightBakes Ltd income statement: Revenue $400,000 · Cost of Sales $240,000 · Expenses $120,000 · Tax $8,000.
- Calculation: GP = $160,000; NP = $40,000; NPM = 40,000 ÷ 400,000 × 100 = 10% (1 mark)
- Interpretation: 10 cents of every $1 revenue reaches net profit (1 mark)
- Analysis: Expenses of $120,000 are consuming most of the gross profit — manager should investigate overheads to improve NPM (1 mark)
Nova Furniture sells a dining table for $1,500 to a customer on 60-day trade credit. Its own supplier invoice for wood ($400) is due in 10 days.
- Concept: Revenue recorded when sale agreed — not when cash received (1 mark)
- Application: Customer pays in 60 days — no cash received yet (1 mark)
- Analysis: Supplier payment due in 10 days — cash must go out before it comes in, creating a cash flow deficit despite being profitable (1 mark)
Topic Complete!
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