The formula
Free Cash Flow = Operating Cash Flow − Capital Expenditures
Operating cash flow is the cash generated from the company's core business operations. Capital expenditures (capex) is money spent on maintaining or expanding physical assets — property, equipment, infrastructure.
What remains after capex is genuinely free: the company can use it however it chooses.
Why FCF matters more than earnings for dividends
Earnings per share (EPS) is calculated under accounting rules that include non-cash items like depreciation, amortization, and stock-based compensation. A company can report healthy earnings while actually generating little real cash.
Free cash flow strips those accounting adjustments away. A company consistently paying more in dividends than it generates in free cash flow is using debt or other sources to fund the payout — which is unsustainable.
Simple check: Divide annual dividend payments by free cash flow. If the result is above 80–90%, the dividend has limited room for growth and some vulnerability to cuts in downturns.
FCF in different industries
Capital-intensive industries (utilities, telecoms, manufacturers) have higher capex, which reduces free cash flow relative to earnings. This is why earnings-based payout ratios can look deceptively healthy for these businesses.
Asset-light businesses (software, consumer staples brands, payment processors) convert earnings to free cash flow very efficiently — often 80–95% of operating earnings become FCF. These businesses can sustain high payout ratios more easily.
Free cash flow yield
Free cash flow yield = Free cash flow per share ÷ Share price × 100
This metric measures how much free cash a business generates relative to its valuation — a cousin of dividend yield that shows total cash-generation capacity regardless of how much is paid out as dividends.
Related terms
- Payout ratio — FCF payout ratio is the more reliable version
- Dividend safety — FCF is a key input to safety assessment
- Earnings per share — earnings-based metric that FCF often corrects