The 3 Financial Statements: What Each Tells You and How They Link

Q: Why can a profitable company run out of cash?

Profitability is measured on an accrual basis, not a cash basis. A company can show profit while cash drains through working capital buildup (customers not paying), heavy capital expenditures, or debt repayments. The income statement records revenue when earned, but if customers pay on 90-day terms, that profit hasn't generated cash yet. This mismatch kills businesses.

Q: What are the three critical linkages between the financial statements?

First, net income from the income statement is the starting point for the cash flow statement. Second, the net change in cash from the cash flow statement equals the cash line on the balance sheet. Third, net income flows to retained earnings on the balance sheet through the retained earnings bridge: ending RE equals beginning RE plus net income minus dividends.

Q: How should you approach three-statement walkthrough questions in interviews?

Work the statements in a fixed order: income statement, then cash flow statement, then balance sheet. Use the IS impact test at the start. If the item hits the income statement, calculate the pre-tax income change, apply the tax rate for net income, then carry it through CFO and into the balance sheet. If it does not (buying PP&E, issuing debt), say so and move to CFI or CFF, then the balance sheet. Building the balance sheet first forces a plug, because retained earnings needs net income and the cash line needs the net change in cash.

Q: Do you have to walk through every income statement line item in an interview?

Usually not. Everything above the pre-tax income line flows straight down into it, so you can fast forward. Expenses up by 10 means pre-tax income down by 10. Revenue down by 10 means pre-tax income down by 10. SG&A up by 10 as an expense means pre-tax income down by 10. Anchor on pre-tax income, apply the tax rate, say net income, and move to the cash flow statement. Most of the time the interviewer is checking that you understand it, so reciting revenue, COGS, gross profit, OpEx, EBIT, and interest expense one at a time is beside the point. They can still ask you about any of those line items if they want to, so know where the item lands.

Q: Should you say EBT or pre-tax income in an interview?

Say pre-tax income. Spoken out loud, EBT and EBIT are close to the same sound, and the interviewer can hear EBIT when you said EBT. That leaves you correcting them mid-answer. EBT is fine written down. In the room, use the full phrase and keep your language clear and simple.

Q: What are the common mistakes in a three-statement walkthrough?

Three come up in walkthrough questions. Walking the statements out of order, by opening on the balance sheet or at cash, which forces a plug: retained earnings needs net income and the cash line needs the net change in cash, so both are outputs of the other two statements. Recognizing deferred revenue immediately because the cash came in, when it sits as a liability and gets recognized ratably as the service is delivered. And answering in greater depth than the question called for, which buries the part the question actually asked for.

Q: What is the mental model for thinking about the income statement and cash flow statement together?

Think of them as one continuous statement in two parts. Part 1 (income statement) measures profitability on an accrual basis, showing where value was delivered and lost. Part 2 (cash flow statement) adjusts accrual profitability to show actual cash movements. Both feed the balance sheet: cash flows into the cash line and net income flows into retained earnings.

The 3 financial statements explained: what the income statement, balance sheet, and cash flow statement each tell you, and how they link in an IB interview.

OFFERGOBLIN·9 min read·updated August 2026

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"In God we trust. All others must bring data."

W. Edwards Deming

Concept

Financial statements are standardized reports that quantify a company's economic activity. There are three core statements: the Income Statement (profitability over a period), the Balance Sheet (financial position at a point in time), and the Cash Flow Statement (actual cash movements over a period). Together, they answer: Did we make money? What do we own and owe? Where did the cash actually go?

Intuition

Think of a company like a household:

Income Statement: Your paycheck minus rent, groceries, and utilities. Did you profit this month?
Balance Sheet: Your net worth right now: house value, car, savings account minus mortgage and credit card debt.
Cash Flow Statement: Your actual bank statement. You might have "made money" on paper (your house appreciated), but did your checking account actually go up?

Profitability (income statement) doesn't mean liquidity (cash flow). A company can show profit while running out of cash. That kills businesses. The three statements together reveal the full picture.

Golden rule: Start at the top of the Income Statement (IS), work down. Move to the Cash Flow Statement (CFS), then the Balance Sheet (BS). Visualize: Balance Sheet (left), Income Statement (middle), Cash Flow Statement (right). This mental map provides a consistent checklist for any question.

Components

Statement architecture

BALANCE SHEET	INCOME STATEMENT	CASH FLOW STATEMENT
ASSETS	Revenue	Net Income
• Cash	- COGS	+ Non-cash charges
• AR	= Gross Profit (GP)	+/- Working Capital
• Inventory	- Operating Expenses (OpEx)	= Cash from Operations (CFO)
• PP&E	= Operating Income (EBIT)
	- Interest Expense	- Capital Expenditures (CapEx)
LIABILITIES	= Pre-Tax Income (EBT)	= Cash from Investing (CFI)
• AP	- Taxes
• Debt	= Net Income	+/- Debt/Equity changes
		= Cash from Financing (CFF)
SHAREHOLDERS' EQUITY
• Common Stock		= Net Change in Cash
• Retained Earnings
A = L + E

Statement linkages

Critical connections to memorize:

Net Income (IS) → Starting point of Cash Flow Statement
Net Change in Cash (CFS) → Cash on Balance Sheet
Net Income (IS) → Retained Earnings on Balance Sheet

Think of the Income Statement and Cash Flow Statement as one continuous statement:

Part 1 (Income Statement): Measures profitability on an accrual basis, where value was delivered and lost this period.

Part 2 (Cash Flow Statement): Adjusts accrual profitability to show actual cash: what came in and out of the wallet this period.

Both feed the Balance Sheet: cash flows into the Cash line; net income flows into Retained Earnings.

Income statement mechanics

The Income Statement answers: "What value did we recognize this period?"

Line Item	Function	Critical For
Gross Profit	Revenue minus direct costs (COGS)	Margin and production efficiency analysis
Operating Income (EBIT)	Core business profitability before interest and taxes	Cross-company comparison regardless of capital structure
Pre-Tax Income (EBT)	Profit after financing, before tax	Isolating tax effects from operating performance
Net Income	Bottom line profit available to shareholders	Flows to CFO and Retained Earnings

Interview Approach: Work at the Pre-Tax Income line. Ask: "By how much does this item change Pre-Tax Income?" Then apply taxes:

\text{Net Income Change} = \text{Pre-Tax Change} \times (1 - \text{Tax Rate})

Example: COGS increases by $100:

Pre-Tax Income decreases by $100
Net Income decreases by $100 × (1 - tax rate)

Fast forward to pre-tax income

Everything above the Pre-Tax Income line flows straight down into it. Jump there. Expenses up by 10, pre-tax income down by 10. Revenue down by 10, pre-tax income down by 10. SG&A up by 10 as an expense, pre-tax income down by 10. The line item changes and the answer does not.

Use that in the room. Skip ahead to pre-tax income, apply the tax, say net income, and carry it into the Cash Flow Statement. You still have to know which line the item lands on. You just do not have to read the whole ladder out loud on the way down. Most of the time they are checking that you understand it, and reciting revenue, COGS, gross profit, OpEx, EBIT, and interest expense one at a time is usually beside the point. They can still ask you about any of those line items if they want to, so know them.

Say pre-tax income out loud, never EBT

Say the words. Pre-tax income. Do not say EBT in an interview.

Out loud, EBT and EBIT are close to the same sound, and there is a real chance the interviewer hears EBIT when you said EBT. Now you are correcting them mid-answer. The table above prints EBT because that is how it gets written down. In the room, say the full phrase. Keep the language clear and simple and the confusion never starts.

Revenue recognition principle

Revenue appears on the Income Statement when value is delivered, regardless of cash timing.

Example: Sell $1,000 of product on credit in Q1; customer pays in Q2. Taxes ignored here so the linkage stays visible.

Q1:

Income Statement: Revenue +$1,000, Net Income +$1,000
Cash Flow Statement: Net Income +$1,000, offset by a Working Capital outflow of $1,000 (AR increase), so CFO $0 and cash is unchanged
Balance Sheet: Accounts Receivable +$1,000, Retained Earnings +$1,000

Q2:

Income Statement: No impact (value already recognized)
Cash Flow Statement: Working Capital inflow of $1,000 (AR collected), CFO +$1,000
Balance Sheet: Cash +$1,000, Accounts Receivable −$1,000, total assets unchanged

The profit lands in Q1. The cash lands in Q2. That gap is the whole reason the Cash Flow Statement exists.

Cash flow statement mechanics

The Cash Flow Statement answers: "What actually happened to our cash this period?"

Classification logic

If cash actually changed hands → appears directly in the appropriate CFS section
If it shows on the Income Statement but cash didn't move → adjust for it in CFO

Cash from operations (CFO)

Start with Net Income, then make two adjustment types:

Non-cash charges (add back): Depreciation & Amortization, Stock-based compensation, Deferred taxes, Impairment charges

Working Capital changes:

AR increase → cash outflow (sales made, not collected)
Inventory increase → cash outflow (paid for inventory)
AP increase → cash inflow (received goods, haven't paid)

\text{CFO} = \text{Net Income} + \text{Non-cash Charges} \pm \text{Working Capital Changes}

Interview shortcut: IS impact test

Does it impact the Income Statement?
- YES → Flows through CFO (starting from Net Income), with adjustments if cash timing differs
- NO → Goes directly into CFI or CFF
"NO" examples: Taking out a loan, issuing stock, buying PP&E, paying dividends
"YES" examples: Revenue, COGS, operating expenses, depreciation (added back in CFO)

Balance sheet mechanics

The Balance Sheet answers: "What do we own, what do we owe, and what's left for shareholders at this moment?"

\text{Assets} = \text{Liabilities} + \text{Shareholders' Equity}

Retained earnings bridge

This connects the Income Statement to the Balance Sheet:

\text{Ending RE} = \text{Beginning RE} + \text{Net Income} - \text{Dividends}

Every dollar of undistributed profit flows here.

Complete walkthrough example

Inventory purchase

"The company spends $1,000 on inventory. Walk me through the three statements."

Assume cash purchase.

Step 1: Classification. Buying inventory is a cash transaction with no Income Statement impact yet, because nothing has been sold. Check the Income Statement, find nothing, then start the work on the CFS.

Step 2: Cash Flow Statement

CFO: Inventory increase → Working Capital outflow → CFO −$1,000
Net Change in Cash: −$1,000

Step 3: Balance Sheet (Immediate)

Assets: Cash −$1,000, Inventory +$1,000
Total Assets: Unchanged (mix shift from cash to inventory)
Liabilities and Equity: No change

Step 4: Income Statement. No impact. The expense hits when the inventory is sold, as COGS.

Subsequent sale

Sell inventory for $1,500 cash. Tax rate: 40%.

Income Statement:

Revenue: +$1,500
COGS: −$1,000
Pre-Tax Income: +$500
Taxes: −$200
Net Income: +$300

Cash Flow Statement:

CFO: Net Income +$300, Inventory decrease +$1,000 → CFO: +$1,300
Net Change in Cash: +$1,300

Balance Sheet:

Assets: Cash +$1,300, Inventory −$1,000 → Net Assets: +$300
Equity: Retained Earnings +$300

Total Assets +$300 = Total Liabilities $0 + Total Equity +$300 ✓

Common trap: walking the statements out of order

Question: the same sale. "You sell that inventory for $1,500 in cash. Walk me through the three statements."

Trap: opening anywhere other than the Income Statement.

The Balance Sheet cannot be built first, because two of its lines are outputs of the other two statements. Retained Earnings needs net income, and net income comes off the Income Statement. The cash line needs the net change in cash, and that comes off the Cash Flow Statement. Open there and you are guessing at two lines you have not built yet, and the only way to close A = L + E is to plug one of them.

Opening at cash has the same defect in a different place. Net income sits upstream of the cash number, since it is the first line of the Cash Flow Statement, so naming the cash figure first leaves no route back to the Income Statement.

Run it in order and it falls out on its own:

Income Statement. Revenue +$1,500, COGS −$1,000, Pre-Tax Income +$500, taxes at 40% −$200, Net Income +$300.
Cash Flow Statement. Start at Net Income +$300. Inventory falls by $1,000, which releases working capital, so CFO is +$1,300. Net Change in Cash +$1,300.
Balance Sheet. Cash +$1,300, Inventory −$1,000, so assets are +$300. Retained Earnings +$300. It balances.

An item with no Income Statement impact does not change the order. The inventory purchase above is the example: you still start at the Income Statement, say "no impact this period," and move to the Cash Flow Statement. Checking and finding nothing is part of the walk.

Common trap: deferred revenue

Question: "A customer pays for a one-year subscription upfront. Walk me through the statements."

Trap: Recognizing all revenue immediately because cash came in.

Correct Answer:

Cash Flow Statement: CFO increases (cash received)
Balance Sheet: Cash increases; Deferred Revenue (liability) increases by same amount
Income Statement: No impact at receipt. Revenue is recognized ratably over the year
Each period: IS shows 1/12 of revenue; Deferred Revenue decreases by 1/12

Common trap: answering deeper than the question asked

Trap: going into greater depth than the question called for.

Take the subscription question above. It asks for one thing: one number moved through three statements. An answer that opens with a definition of accrual accounting, works through why the Cash Flow Statement exists at all, runs the list of non-cash charges that get added back, and detours into deferred taxes has the right answer inside it somewhere. It also buries it.

The fix is mechanical. Answer at the level asked. Name the line, the direction, and the amount, statement by statement, then stop at the balance check. If the interviewer wants the recognition schedule or the tax treatment, they will ask for it.

What that sounds like out loud:

"Cash goes up, and Deferred Revenue goes up by the same amount as a liability, so the Balance Sheet still balances. Nothing hits the Income Statement yet. Revenue gets recognized over the year as the service is delivered, and Deferred Revenue draws down with it."

Then stop talking.

Interview script

Financial statements are three standardized reports that together reveal a company's complete financial picture. The Income Statement shows profitability over a period, the Balance Sheet shows what you own versus owe at a point in time, and the Cash Flow Statement tracks actual cash movements, which matters because a company can show accounting profit while running out of cash, and that mismatch kills businesses.

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Frequently Asked Questions

Why can a profitable company run out of cash?

What are the three critical linkages between the financial statements?

How should you approach three-statement walkthrough questions in interviews?

Do you have to walk through every income statement line item in an interview?

Should you say EBT or pre-tax income in an interview?

What are the common mistakes in a three-statement walkthrough?

What is the mental model for thinking about the income statement and cash flow statement together?