“Walk me through an income statement” sounds like the easiest question in a banking interview. It also shows you quickly whether someone has actually used one. Candidates who memorized the order stumble the moment the interviewer asks why a line sits where it does, and candidates who understand it answer in thirty seconds and then handle every follow-up.
Below, we go down the income statement one line at a time with a hypothetical company and round numbers. You will have a full answer you can say aloud, an explanation of each line, and a response to the add-on question interviewers like to ask afterward.
What the Income Statement Is Telling You
The income statement shows how a company performed over a period, such as a quarter or a year. It starts with sales at the top and subtracts different categories of costs as it moves down, leaving profit at the bottom. That is why the last line is nicknamed the bottom line.
Think of it as a series of filters. Each subtotal answers a different question:
- Gross profit: how much is left after the direct cost of making the product or delivering the service?
- Operating income (EBIT): how profitable is the core business after running costs?
- Pre-tax income: what remains after financing costs?
- Net income: what belongs to shareholders after taxes?
Say this framing out loud in an interview. It shows you understand the purpose, not just the order.
The Worked Example
Use a hypothetical company with figures in millions of dollars. All numbers are made up for illustration.
| Line | Amount | How it is calculated |
|---|---|---|
| Revenue | 1,000 | Sales to customers |
| Cost of goods sold | 600 | Direct costs of the product |
| Gross profit | 400 | Revenue minus COGS |
| SG&A | 150 | Selling, general and administrative |
| R&D | 40 | Research and development |
| Depreciation and amortization | 50 | Non-cash cost of assets |
| Operating income (EBIT) | 160 | Gross profit minus operating expenses |
The sections below pick up from there and continue to net income.
Revenue and Cost of Goods Sold
Revenue, also called sales or the top line, is what the company earned from customers during the period. In our example it is 1,000.
Cost of goods sold (COGS) is the direct cost of producing what was sold: materials, factory labor and similar items. For a software or services company, it may be called cost of revenue and include hosting or delivery staff. Our company has COGS of 600.
Subtract COGS from revenue and you get gross profit of 400. Gross margin is gross profit divided by revenue, which is 400 divided by 1,000, or 40 percent in this hypothetical. Margins let you compare companies of different sizes, so interviewers like candidates who mention them.
Operating Expenses Down to EBIT
Operating expenses are the costs of running the business that are not directly tied to making each unit. The usual categories:
- SG&A. Salaries for sales and administrative staff, marketing, rent for offices and general overhead. Ours is 150.
- R&D. Spending on developing new products. Ours is 40.
- Depreciation and amortization (D&A). The accounting charge that spreads the cost of long-lived assets over their useful lives. Ours is 50. It is a non-cash expense, because the cash was spent when the assets were bought.
Subtract the operating expenses from gross profit and you reach operating income, also called EBIT (earnings before interest and taxes): 400 minus 150 minus 40 minus 50 equals 160.
Some companies show D&A inside COGS and operating expenses rather than as a separate line. If an interviewer shows you a statement where it is buried, do not be thrown. The idea is the same.
Interest and Other Items Down to Pre-Tax Income
Everything above EBIT reflects the operations of the business. Everything below reflects how it is financed and other items.
- Interest expense. The cost of the company’s debt. Say it is 30.
- Interest income. What the company earns on its cash. Say it is 5.
- Other income or expense. Gains or losses on items outside the core business, such as the sale of an asset. Our example has none.
Net interest cost is 30 minus 5, which is 25. Pre-tax income, often written EBT (earnings before taxes), is 160 minus 25, or 135.
This split is why bankers care about the difference between operating income and pre-tax income. EBIT does not depend on the company’s debt level, which makes it useful for comparing companies with different capital structures. Pre-tax income does depend on it.
Taxes and Net Income
Taxes are calculated on pre-tax income at the company’s effective tax rate. Using a hypothetical 25 percent rate, taxes are 135 times 0.25, which is 33.75. Net income is 135 minus 33.75, or 101.25.
If a company has other items, they appear near the bottom of the statement:
- Noncontrolling interest. If the company owns most but not all of a subsidiary, the portion of that subsidiary’s profit that belongs to the other owners is deducted to reach net income attributable to the company.
- Preferred dividends. These are paid before common shareholders receive anything.
- Discontinued operations. Results from a business the company has sold or shut down are shown on their own line, separate from continuing operations.
Finally, divide net income available to common shareholders by diluted shares outstanding to get earnings per share (EPS). With 45 million shares in our example, EPS is 101.25 divided by 45, or 2.25 dollars.
The Answer in Thirty Seconds
Here is a version you can practice. Notice that it uses plain words and moves in order.
“An income statement starts with revenue, the sales to customers. I subtract cost of goods sold to get gross profit. Then I subtract operating expenses, such as SG&A, R&D and depreciation and amortization, to get operating income, or EBIT. After that I subtract interest expense and add interest income to get pre-tax income. I subtract taxes to arrive at net income, and dividing by shares gives EPS.”
Practice until it takes about half a minute and you do not need to think about the order. Then add the example numbers from memory, because interviewers often follow up with “say revenue is 1,000 and…” and ask you to calculate.
The Follow-Up Interviewers Like to Add
The most common add-on after the walkthrough is some version of: “Which of these lines would you adjust before comparing this company with another one, and why?” The strong answer has three parts.
- One-time items. A restructuring charge, a gain on an asset sale or a legal settlement can distort a single period. Bankers adjust for them to see the underlying run rate of the business.
- Non-cash items. Depreciation and amortization differ based on accounting choices and how much a company has invested in assets. Adding them back gives EBITDA, which in our example is 160 plus 50, or 210.
- Capital structure. Interest and taxes depend on how a company is financed and where it operates. Stopping at EBIT or EBITDA lets you compare the operations of two businesses on equal footing.
That is why valuation often uses multiples of EBITDA or EBIT instead of net income. Our guide to valuation multiples explains how those ratios work.
A related follow-up asks how the income statement connects to the other statements. Net income flows into retained earnings on the balance sheet and is the starting line of the cash flow statement. Our guide to how the three statements link together covers this connection and is worth reading right after this.
Common Variations to Be Ready For
Not every company looks like the example. Interviewers sometimes change the setup to see if you adapt.
- Software and subscription companies. Revenue may be recognized over time, not at the moment of sale. See our explanation of recurring revenue models and deferred revenue for how that affects the statement.
- Banks and insurers. Their statements use different line items, such as net interest income and provisions. Mention that you would use the structure that fits the industry.
- Companies with losses. If pre-tax income is negative, tax treatment becomes more complicated. You can say that you would flag the loss and ask about the tax assumptions.
Saying that a template needs adjusting for the industry shows maturity.
Where Candidates Slip
Most errors in this question are small and avoidable.
- Skipping the purpose. A list of line items sounds recited. One sentence on what each subtotal tells you makes it sound understood.
- Mixing up EBIT and net income. Say clearly that EBIT comes before interest and taxes, and net income comes after both.
- Forgetting that D&A is non-cash. If you mention it, add that it reduces profit but does not use cash in the period.
- Rushing the numbers. If you are asked to calculate, say each step aloud. A slow, correct answer beats a fast, wrong one.
- Going silent on unfamiliar lines. If you see an item you do not recognize, say what you think it is and how you would confirm it.
Key Takeaways
- Walk down the statement in order: revenue, COGS, gross profit, operating expenses, EBIT, interest, pre-tax income, taxes, net income, then EPS.
- Explain what each subtotal tells you, not only what it is called.
- Practice a thirty-second spoken version, then be ready to repeat it with numbers.
- EBIT and EBITDA strip out financing and non-cash items, which is why bankers use them to compare companies.
- Expect follow-ups about one-time items and about how net income flows into the other two statements.
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- Deferred Revenue Explained: Key Accounting Concept for IB Interviews
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