Definition (canonical)
Free cash flow (FCF) is the cash a business generates from operations after paying for the capital expenditures needed to maintain and grow it: FCF = operating cash flow − capital expenditures. It is the money genuinely "free" to repay debt, pay dividends, buy back shares or reinvest. Because it is cash actually left over — not an accounting profit — it is widely treated as the truest single measure of financial health.
Why it beats profit
Profit can be shaped by non-cash items and accounting choices; FCF is harder to fake because it starts from real operating cash flow and subtracts real spending on equipment and assets. A company can report healthy net income while FCF is negative — burning cash on capex or trapped in unpaid receivables. Consistently positive and growing free cash flow is what lets a business survive downturns, self-fund growth and reward owners without new debt or dilution. This is why lenders and investors watch it more closely than the bottom line on the income statement.
FCF vs EBITDA vs operating cash flow
EBITDA strips out interest, tax, depreciation and amortization to approximate operating profitability — but it ignores capital spending and working-capital swings, so a capital-hungry business can show strong EBITDA and weak FCF. Operating cash flow (from the cash flow statement) captures cash from the core business but before capex. Free cash flow goes one step further and subtracts capex — the number that reflects what owners can actually take out. The gap between EBITDA and FCF is often where the real story of a business hides.
How investors use it
FCF underpins valuation: discounted-cash-flow models project future free cash flows and discount them to today. Analysts also watch FCF margin (FCF / revenue) and FCF yield (FCF / market value) to compare companies. A caution: a single year can be distorted by one-off capex or timing, so judge FCF over several years and separate maintenance capex from growth capex before drawing conclusions.
FAQ
What's the difference between FCF and profit? Profit is an accounting figure with non-cash items; FCF is actual cash left after capital spending, so it's harder to manipulate.
Is FCF the same as EBITDA? No — EBITDA ignores capex and working capital; FCF subtracts capital spending, giving a truer cash picture.
Can free cash flow be negative? Yes — often for fast-growing firms investing heavily. It's only a worry if it persists without a payoff.
Why do investors value FCF? Because valuation models discount future free cash flows, and FCF shows real capacity to pay debt, dividends and fund growth.
Related: Cash flow · Cash flow statement · EBITDA Reviewed: 2026-08-02 · Sources: corporate finance canon