Cash Flow Is the Movement That Keeps the Lights On
Payday lands Friday, the invoices say the quarter was profitable, and the checking account still comes up $12,000 short. That squeeze is cash flow — the money that actually moves, not the profit the books report.
Cash flow is the movement of money into and out of a business (or a household) over a period. It tracks when cash actually arrives and leaves — not when accounting rules record a sale or an expense.
Profit and cash run on different clocks
Book a $100,000 sale on 60-day payment terms and revenue shows up today, while the cash shows up in two months. Payroll and rent won't wait, so the business has to fund the gap.
Net income can lag cash in the other direction, too. Depreciation lowers reported profit each year, but the cash left when the machine was bought — nothing moves now.
The three flavors on the statement
The cash flow statement splits everything into operating, investing, and financing activities. Operating is cash from running the business; investing covers buying and selling long-term assets; financing covers borrowing, repaying, and equity.
Borrow $500,000 and cash jumps — but it's a financing inflow, not profit. That's why "cash went up" and "the business did well" aren't the same sentence.
Why growth eats cash
A growing company buys inventory and pays wages today to serve sales it collects on later. Receivables and inventory swell faster than supplier terms cover them, so the faster it grows, the more cash it needs.
That's how profitable companies fail: the profit is real, but it's parked in unpaid invoices when the bills come due.
The number analysts trust
Operating cash flow is harder to dress up than earnings, which makes it a favorite reality check. Subtract capital spending and you get free cash flow — what's genuinely left for dividends, buybacks, and paying down debt.
Nobody should say "cash flow" without naming which one. Operating, free, and net change in cash answer different questions with different numbers.
Public companies file the full statement in their annual reports; the SEC's guide to reading a 10-K shows where it sits and how to read it.
Whenever you size up a business — including your own — read the cash before you admire the profit.