The Income Statement Explained

What the Income Statement Shows

The income statement — also called the profit and loss statement — reports a company's financial performance over a specific period (a month, quarter, or year).

It follows a simple logic: - Start with revenue (what the company earned) - Subtract expenses (what it cost to earn that revenue) - The difference is net income (profit) or net loss

Unlike the balance sheet (which shows a snapshot at a point in time), the income statement covers a range of dates. "For the year ended December 31, 2025" means it captures all revenue and expenses from January 1 through December 31.

The Structure: Top to Bottom

A standard income statement for a trading company follows this structure:

Each line tells you something specific about the business. Let's break them down.

Revenue and Cost of Goods Sold

Revenue is the total earned from the company's primary operations — selling products or delivering services. Net revenue means after deducting sales returns, allowances, and discounts.

Cost of Goods Sold (COGS) is the direct cost of producing or purchasing the goods that were sold. For a retailer, it's what they paid for the inventory. For a manufacturer, it includes raw materials, direct labor, and manufacturing overhead.

COGS only includes costs directly tied to producing revenue. It does not include the accountant's salary, office rent, or advertising — those are operating expenses.

Gross Profit = Revenue − COGS

Gross profit shows how much the company earns after covering the direct cost of its products. If gross profit is thin, the company may be pricing too low, purchasing too expensively, or operating in a low-margin industry.

In the example above, the gross profit margin is 40% (320,000 ÷ 800,000). This means for every SAR 1 of sales, SAR 0.40 remains after covering direct costs.

Operating Expenses and Operating Income

Operating expenses are the costs of running the business that aren't directly tied to producing goods:

Selling expenses: Sales salaries, advertising, shipping, commissions Administrative expenses: Office rent, management salaries, depreciation, utilities, insurance

Operating Income = Gross Profit − Operating Expenses

Operating income (also called operating profit) shows how much the company earned from its core business operations — before financing costs and taxes. It's one of the most useful numbers on the statement because it strips out factors unrelated to the actual business performance.

A company with strong revenue but weak operating income is spending too much to run its operations. A company with modest revenue but healthy operating income is running efficiently.

Non-Operating Items and Net Income

Below operating income, you'll find items that aren't part of the company's main business:

• Interest expense — cost of borrowing money
• Interest revenue — income earned on investments or deposits
• Gains/losses on asset sales — selling equipment above or below book value

These are separated because they reflect financing and investment decisions, not operational performance.

Net Income = Operating Income + Non-Operating Revenue − Non-Operating Expenses − Taxes

Net income is the "bottom line." It flows into the statement of changes in equity and ultimately into retained earnings on the balance sheet. This is the number that determines whether the company grew wealthier during the period.

Service Companies vs Trading Companies

The income statement structure changes slightly depending on the business type.

Trading company (sells physical goods): Has a COGS section and calculates gross profit.

Service company (sells services): Usually has no COGS. Revenue minus operating expenses goes directly to operating income.

For a service company, the biggest expense is usually people. Labor-intensive businesses like consulting firms might spend 60-70% of revenue on salaries alone.

Reading an Income Statement: What to Look For

When analyzing an income statement, focus on these questions:

Is revenue growing? Compare to prior periods. Flat or declining revenue is a warning sign unless the company is intentionally shrinking.

Is the gross margin stable? If gross margin drops from 45% to 38%, the company is either cutting prices, paying more for goods, or shifting to lower-margin products. Any of these deserves investigation.

Are operating expenses proportional? If revenue grows 10% but operating expenses grow 25%, the company is becoming less efficient. Look for which expense category is driving the increase.

What's the net profit margin? Net income ÷ Revenue. A 12% net margin means the company keeps SAR 0.12 from every SAR 1 of sales. Compare to industry benchmarks — net margins vary dramatically between industries.

The income statement never lies, but it can mislead. A one-time gain from selling a building can inflate net income, making a bad year look good. Always look at operating income separately to understand the core business.

Practice Building Income Statements

Try classifying these items — which line does each belong on?

1. SAR 500,000 of merchandise sold to customers → Revenue 2. SAR 310,000 paid to suppliers for that merchandise → COGS 3. SAR 24,000 monthly office lease → Administrative Expense 4. SAR 8,000 interest on a bank loan → Non-operating Expense 5. SAR 15,000 earned from a building sold above book value → Non-operating Gain

The income statement is one of the first financial statements students learn to prepare — and one they'll build hundreds of times in their careers. Practice preparing income statements from transaction data on Accountery, where the platform validates every line and classification in real time.