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