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:
Net Income Change=Pre-Tax Change×(1−Tax Rate)
Example: COGS increases by $100:
- Pre-Tax Income decreases by $100
- Net Income decreases by $100 × (1 - tax rate)
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)
CFO=Net Income+Non-cash Charges±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?"
Assets=Liabilities+Shareholders’ Equity
Retained Earnings Bridge
This connects the Income Statement to the Balance Sheet:
Ending RE=Beginning RE+Net Income−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 that doesn't immediately impact the IS (not sold yet). Start with 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—expense hits when 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: 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 recognized ratably over the year
- Each period: IS shows 1/12 of revenue; Deferred Revenue decreases by 1/12
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 is critical because a company can show accounting profit while running out of cash, and that mismatch kills businesses.