The Cash Flow Statement
A company can report a healthy profit and still run out of cash to pay its own staff — which sounds like a contradiction until you understand why profit and cash are two genuinely different things, and why professional investors trust the cash flow statement more than any other document a company publishes.
Why profit and cash are not the same thing
The income statement (Lesson 6.1) records revenue the moment a sale is made and expenses the moment they're incurred — a rule called accrual accounting — regardless of when cash actually changes hands. If a company sells $1M of goods to a customer on 60-day credit terms, that $1M counts as revenue immediately, boosting reported profit, even though no cash has arrived yet. Meanwhile, the company still has to pay its own staff and suppliers in real cash, often before that customer ever pays up. A business can be growing sales rapidly, reporting rising profits every quarter, and still be dangerously low on actual cash in the bank — this gap between paper profit and real cash is exactly what the cash flow statement is built to reveal.
Operating, investing, and financing cash flows
The cash flow statement splits all cash movements into three categories.
| Section | What it captures | Example |
|---|---|---|
| Operating | Cash generated (or used) by the core, everyday business | Cash received from customers, cash paid to suppliers and staff |
| Investing | Cash spent on or raised from long-term assets | Buying equipment, acquiring another company, selling a property |
| Financing | Cash moving between the company and its lenders or shareholders | Issuing or repaying debt, issuing shares, paying dividends |
Operating cash flow is the most closely watched of the three — it shows whether the actual core business is generating real cash, adjusted back from the accrual accounting used on the income statement. Investing cash flow is often negative for a healthy, growing company, since it's spending cash to buy equipment or expand — that's not automatically a bad sign, it can mean the opposite. Financing cash flow shows how the company is funding itself and rewarding shareholders — raising debt, buying back shares, or paying dividends all show up here.
Free cash flow: the number professionals watch most
Free cash flow (FCF) is operating cash flow minus the capital expenditure (spending on equipment, property, and other long-term assets) required just to maintain and grow the business. It represents the cash a company genuinely has left over after covering both its day-to-day operations and the reinvestment needed to keep the business running — cash that's truly "free" to pay down debt, pay dividends, buy back shares, or save for the future.
Many professional investors treat free cash flow as the single most important number in a company's entire financial reporting, more important than net profit, because it's much harder to distort with accounting choices and it directly measures the cash-generating power of the business — ultimately, what a company can actually do for its shareholders depends on the cash it generates, not the profit figure it reports.
Profitable but cash-flow negative: a red flag
When a company reports solid net profit on its income statement but negative operating cash flow, that combination deserves serious scrutiny. Common causes include a rapidly growing pile of unpaid customer invoices (receivables) — meaning reported "sales" haven't actually turned into cash yet — building up excess inventory that ties up cash without generating revenue, or aggressive accounting choices that boost reported profit without a matching cash benefit. None of these are automatically fraud or failure, but every one of them means the reported profit figure is, for now, more of a promise than a fact, and a company that persistently burns cash while reporting profit can eventually run out of money to pay its bills even while looking profitable on paper — which is exactly the trap that catches investors who only ever read the income statement.
A company reports $10M net profit but -$15M operating cash flow. What questions would you ask?
Reveal Answer
Good questions include: Is revenue growing mainly through sales on credit, meaning receivables (money owed by customers) are piling up faster than cash is actually collected? Is the company building up a large inventory of unsold goods, tying up cash without generating any revenue yet? Are there one-off, non-cash items boosting net profit — like a gain from revaluing an asset — that don't represent real cash coming in? Is the gap a one-time event tied to unusual growth or a big one-off working-capital change, or has it been persistent for several quarters running? And critically: does the company have enough cash reserves or access to credit to comfortably absorb a $15M cash shortfall while these issues get resolved, or is its cash position becoming genuinely strained? A single quarter of this gap during rapid, healthy growth might be explainable; a company reporting this pattern consistently, quarter after quarter, is a serious warning sign that the reported profit isn't translating into real cash.