Free cash flow
Free cash flow is the cash a firm generates after meeting its operating and capital spending needs.
Profit is an opinion shaped by accounting choices; cash is a fact. Free cash flow is the cash a business actually has left over once it has paid to keep itself running and growing.
Free cash flow is the cash a company generates after covering the operating expenses and capital investment needed to maintain and grow its business. It is the cash genuinely available to be returned to investors or deployed elsewhere, and it is prized as a harder, less manipulable measure of financial health than accounting profit.
What is left after the essentials
Free cash flow starts from the cash a business produces from its operations and subtracts the capital expenditure required to sustain and expand it, the spending on plant, equipment, and other long-lived assets. What remains is free in the sense that it is not committed to running the business: it can be paid out as dividends, used to buy back shares, pay down debt, or fund acquisitions. It represents the firm's genuine cash-generating capacity once the demands of staying in business have been met.
Why cash beats profit
Free cash flow is valued because it is harder to manipulate than accounting profit. Reported profit depends on judgements, accruals, depreciation methods, and timing, that can flatter or obscure the underlying reality, whereas cash either exists or it does not. A company can show healthy profits while generating little or no cash, a warning sign that the profits are of low quality or that the business is consuming cash to grow. Investors therefore watch free cash flow as a check on whether reported profits are translating into real, distributable money.
The signal it sends
Strong and growing free cash flow signals a robust business that funds itself and has surplus to reward investors or pursue opportunities. Weak or negative free cash flow is not always bad, a young firm investing heavily for growth may burn cash sensibly, but it demands explanation, since a mature business that cannot generate free cash is in trouble. Free cash flow also underpins valuation: discounted cash flow models often value a firm precisely on the free cash it is expected to produce.
Free cash flow cuts through the ambiguity of accounting to ask what a business actually has left in cash after meeting its needs. Its resistance to manipulation makes it a favourite of investors seeking the truth behind reported profits, and its role as both a health check and a basis for valuation reflects a hard-headed principle: that in the end, a business is worth the cash it can generate and give back, not the profit it can report.