Quick answer
The income statement reports an entity’s financial performance for a period by presenting recognized income and expenses and the resulting profit or loss. It measures accrual-basis performance, not the period’s net change in cash.
The income statement brings together what the business earned and the costs it incurred during a span of time. If income is greater than expenses, the business reports a profit; if expenses are greater, it reports a loss.
Income and expenses
Revenue is income from ordinary activities, such as customer sales. Income can also include gains, such as a gain on selling equipment. Expenses include resources consumed and losses recognized in measuring performance. This is why the broader relationship is income − expenses = profit or loss for items included in that result, even when a simple service business has only revenue and operating expenses.
Depending on the entity and reporting framework, an income statement may also be titled a statement of income or statement of profit or loss. The exact title and presentation depend on the applicable requirements.
Structure of the income statement
Separating different levels of performance helps a reader understand why profit changed. Common subtotals distinguish the margin on goods sold, operating results, and final profit or loss. Not every entity uses every subtotal:
- Revenue or income
- Amounts recognized from the entity’s activities under the applicable requirements. Owner contributions are excluded because they are financing, not performance.
- Gross profit
- Sales revenue less Cost of Goods Sold (COGS) for a business that sells goods. COGS is the cost assigned to the goods sold during the period, not their selling price. Gross profit shows the amount remaining before operating and other expenses.
- Operating expenses and operating profit
- Costs of running the business are deducted to show the result from operations where that presentation is used.
- Profit or loss
- The residual performance result after all recognized income and expenses included in that measure, including applicable finance and tax effects.
Read Maple Tech’s March income statement
Maple Tech is a simple service business, so its statement moves directly from Service Revenue to three expenses and profit. It has no inventory, COGS, or financing cost. The simplified statement excludes income tax.
Scroll horizontally to see all columns.
| Line item | March 2026 |
|---|---|
| Revenue | |
| Service Revenue | 7,000 |
| Expenses | |
| Rent Expense | 1,500 |
| Supplies Expense | 1,500 |
| Depreciation Expense | 200 |
| Total Expenses | 3,200 |
| Profit | 3,800 |
Service Revenue is $7,000: $6,000 collected for March services plus $1,000 for completed work that the customer already owes Maple, even though Maple has not yet sent the bill. Expenses total $3,200, so March profit is $3,800.
Reporting period
The statement heading says for the month ended March 31 because it accumulates activity across March rather than reporting one date. Its revenue and expense balances come from the adjusted trial balance after all three March adjustments are posted. Maple Tech’s example reports revenue, expenses, and profit; it does not include other comprehensive income.
Where March profit goes next
Scroll horizontally to see all columns.
| Statement | Account | Effect | Timing |
|---|---|---|---|
| Equity reconciliation | Retained Earnings | March profit increases equity by $3,800 | For March |
| Balance sheet | Retained Earnings | Contributes to the $53,800 ending equity total | At March 31 |
| Cash flow statement | Operating cash flow | Profit is reconciled to $4,500 of operating cash | For March |
- Equity reconciliation
- AccountRetained Earnings
- EffectMarch profit increases equity by $3,800
- TimingFor March
- Balance sheet
- AccountRetained Earnings
- EffectContributes to the $53,800 ending equity total
- TimingAt March 31
- Cash flow statement
- AccountOperating cash flow
- EffectProfit is reconciled to $4,500 of operating cash
- TimingFor March
Multi-step presentation
A business that sells goods, borrows, and pays income tax usually presents several subtotals to distinguish gross profit, operating profit, and profit after financing costs and income tax.
Read a merchandiser’s multi-step income statement
Scroll horizontally to see all columns.
| Line item | 20X1 |
|---|---|
| Sales revenue | 500,000 |
| Cost of goods sold | (300,000) |
| Gross profit | 200,000 |
| Selling expenses | (70,000) |
| Administrative expenses | (50,000) |
| Operating profit | 80,000 |
| Finance costs | (10,000) |
| Profit before income tax | 70,000 |
| Income tax expense | (17,500) |
| Profit | 52,500 |
Each subtotal answers a different question. Gross profit shows the margin on goods sold; operating profit shows the result of running the business; finance costs and tax then reduce it to the period’s final profit.
Birchwood classifies expenses by function—cost of sales, selling, administration. IFRS also permits classification by nature, such as employee benefits and depreciation. For periods when IFRS 18 applies, income and expenses are also grouped into operating, investing, and financing categories with required subtotals. The applicable framework determines the required line items, comparatives, and notes.
Profit or loss and comprehensive income
Profit or loss collects recognized income and expenses presented in that performance result. Under IFRS, some recognized gains and losses are instead presented in other comprehensive income (OCI), outside the profit-or-loss subtotal. Profit or loss plus OCI produces total comprehensive income. For example, some fair-value changes on qualifying investments may be presented in OCI rather than profit; the investment and the applicable IFRS rule determine the result.
Other Comprehensive Income and Comprehensive Income explains which layer each amount occupies and how OCI connects to the statement of changes in equity.
Common errors
- Using unadjusted revenue and expense balances after period-end facts are known.
- Including owner contributions or dividends as revenue or expenses.
- Reading profit as the same measure as operating cash flow.
- Dating the statement “as at” one day instead of for a period.