Here’s a surprise for many new investors: a company can report a profit and still run out of cash. Profit and cash aren’t the same thing, and the cash flow statement exists to track the difference.
Why profit ≠ cash
The income statement uses accrual accounting: it books a sale when it’s made, not when the money arrives. So a company can record revenue for goods sold on credit — real profit on paper — while the cash is still sitting in customers’ pockets. Depreciation, inventory, and unpaid bills all open gaps between reported profit and actual cash.
The three sections
The statement sorts every dollar of cash that moved into three buckets:
- Operating — cash from the core business (the most important one; you want this positive and growing).
- Investing — cash spent on or raised from long-term assets, like buying equipment (capital expenditure, or “capex”).
- Financing — cash from borrowing, repaying debt, issuing shares, or paying dividends.
Add the three and you get the change in the company’s cash for the period.
Free cash flow
The figure investors prize most is free cash flow (FCF):
Free cash flow = operating cash flow − capital expenditure
It’s the cash left after paying to keep the business running — the money genuinely available to reward owners (dividends, buybacks) or pay down debt. A company with steady, growing FCF has real options; one that’s always profitable but never cash-generative deserves a hard look.
The takeaway
The cash flow statement reconciles profit with reality, splitting cash into operating, investing, and financing. Free cash flow — operating cash minus capex — is the honest measure of the cash a business actually throws off. (This is education, not investment advice.)