Walk Me Through the Three Financial Statements (IB Interview Answer)

"Walk me through the three financial statements" is the most common accounting question in investment banking interviews. It shows up in HireVue, first rounds, and superdays because it is a quick filter: either you can explain how companies report performance and cash, or you cannot. Memorizing definitions is not enough. Interviewers want the purpose of each statement, the links between them, and then a clean follow-up when they change one line item.

The 60-second answer

"The income statement shows revenue and expenses over a period and ends at net income. The balance sheet is a snapshot of assets, liabilities, and equity at a point in time, and it always balances: assets equal liabilities plus equity. The cash flow statement starts with net income, adjusts for non-cash items and working capital, then shows investing and financing cash flows to get the change in cash. Net income flows into retained earnings and into the top of the cash flow statement. Ending cash from the cash flow statement sits on the balance sheet."

That is enough for a first-round. Stop talking. Let them ask a follow-up. If you keep listing every income statement line for two minutes, you sound nervous and junior.

What each statement actually does

Students who only list line items sound like they memorized a textbook. Students who can say the purpose, then the link, sound like they can be staffed.

Income statement (just enough detail)

A simplified flow:

Revenue
− COGS
= Gross Profit
− Operating expenses
= EBITDA (often shown as a non-GAAP bridge)
− D&A
= EBIT
− Interest
= EBT
− Taxes
= Net Income

You do not need to recite that entire ladder in the walkthrough question. You do need it for follow-ups.

Balance sheet (just enough detail)

Assets: cash, AR, inventory, PP&E, intangibles, etc.
Liabilities: AP, accrued expenses, debt, deferred revenue, etc.
Equity: common stock, APIC, retained earnings, treasury stock, etc.

The only non-negotiable sentence: it balances every period.

Cash flow statement (just enough detail)

Indirect method, which interviews assume:

CFO: Net income ± non-cash items ± changes in working capital
CFI: CapEx, acquisitions, asset sales
CFF: Debt issuance/repay, equity issuance/buybacks, dividends
Net change in cash + beginning cash = ending cash

How they link (this is what they are grading)

Income statement → Net Income
                 → starts Cash Flow Statement (CFO)
                 → updates Retained Earnings on Balance Sheet
                   (RE_end ≈ RE_begin + NI − Dividends)

Cash Flow Statement → Ending Cash
                    → Cash line on Balance Sheet

Balance Sheet must still balance after every change

If you cannot close that loop, you do not know the three statements yet. Keep drilling until the loop is automatic.

A useful check phrase: "Net income is the bridge from the income statement into both retained earnings and the cash flow statement. Cash is the bridge from the cash flow statement into the balance sheet."

Follow-ups they almost always ask

"How are the three statements linked?"

Say the linkage paragraph. Do not restart the full walkthrough.

"If you could only pick two statements, which ones and why?"

Cash flow statement and balance sheet. Together you can infer a lot about earnings (change in retained earnings ≈ net income minus dividends if there are no other RE hits), and you see real cash plus financial position. Income statement alone can show profit while the company burns cash.

"Which statement do bankers care about most?"

It depends on the task. For credit and deal work, cash flow often matters most because cash services debt. For valuation multiples and margin analysis, income statement metrics matter. For leverage and liquidity, balance sheet matters. Pick one for the context and justify it. "Cash flow statement, because cash pays for the capital structure" is a strong default.

"Walk me through $10 of depreciation" (tax rate 25%)

IS:  EBIT −$10 → taxes −$2.5 → net income −$7.5
CFS: NI −$7.5 + D&A $10 → cash +$2.5
BS:  Cash +$2.5, PP&E −$10, Retained earnings −$7.5
Check: assets −$7.5, equity −$7.5. Balances.

Say the tax rate. If you forget the tax shield, you will say cash is flat or down and fail the classic version.

"Inventory increases by $10"

If you bought inventory with cash and have not sold it:

IS: no change yet
CFS: inventory +10 → CFO −10
BS: inventory +10, cash −10

If bought on credit: inventory +10, AP +10, cash unchanged until you pay.

"Accounts receivable increase by $10"

You booked revenue you have not collected. Relative to net income, cash is lower. On the CFS, ΔAR is a use of cash.

"What is the difference between EBITDA and free cash flow?"

EBITDA is operating earnings before interest, taxes, D&A. Free cash flow concepts subtract reinvestment and (definitions vary) taxes and interest. In IB interviews, unlevered free cash flow is usually EBIT(1−t) + D&A − CapEx − ΔNWC. Do not equate EBITDA with cash.

A framework for any "impact on the three statements" question

Use this order every time:

1. What hits the income statement?
2. Is it cash or non-cash?
3. What is the cash flow statement adjustment?
4. What balance sheet lines move?
5. Does it still balance?

State assumptions: tax rate, cash vs credit, whether COGS is included. Interviewers forgive a stated assumption. They do not forgive silent wrong ones.

Common mistakes that kill the answer

• Reciting every income statement line for two minutes on the open-ended walkthrough
• Forgetting the balance sheet is a point in time
• Saying the cash flow statement "shows cash" without saying it starts from net income
• Never mentioning retained earnings
• Using "assets = liabilities" and dropping equity
• Ignoring taxes on expense questions
• Mixing up "increase in inventory uses cash" with "inventory is an expense"

How undergrads should practice (2-week plan)

Week 1: Verbal

• Day 1 to 2: nail the 60-second walkthrough and the linkage answer on camera
• Day 3 to 4: depreciation +$10, interest expense +$10, share issuance for cash
• Day 5 to 6: inventory, AR, AP, accrued expense
• Day 7: mixed mock of 10 rapid-fire impact questions

Week 2: Model

• Build a simple three-statement model
• Shock revenue, COGS, D&A, CapEx, and NWC
• Watch cash and retained earnings move
• Explain each shock out loud without looking at the sheet

If you only do flashcards, you will still blank when they change the prompt. If you only build models and never speak, HireVue will expose you. Do both.

How this connects to everything else in IB interviews

Three statements are the base layer:

• DCF needs working capital and CapEx logic from the statements
• LBO debt paydown needs cash flow intuition
• Merger models need you to trust how NI and shares flow
• "Why did FCF miss while EPS grew?" is a working capital / cash story

Treat this question as foundational, not as a one-off to memorize the night before.

Practice on SheetRank

SheetRank grades full models, not flashcards. If you can keep a three-statement case balanced under random inputs, the interview version gets easy because you have seen the links break and then fixed them. Pair verbal drills with at least one live graded three-statement build before your first HireVue.