Free cash flow is the cash a company has left after paying its everyday costs and the investments needed to keep the business running. It is the money that can be used to pay down debt, pay dividends, buy back shares or invest in new projects.
How it relates
Where it fits
Free cash flow (FCF) represents the cash a business generates after accounting for all operating expenses and capital investments needed to maintain or expand its asset base. This is the true "owner earnings"—cash available to pay dividends, reduce debt, make acquisitions, or buy back shares. Many investors consider FCF more important than reported earnings because it's harder to manipulate and represents actual cash in hand.
The standard calculation:
Free Cash Flow = Operating Cash Flow - Capital Expenditures
For example, if operating cash flow is $150 million and capital expenditures are $50 million, FCF is $100 million.
Alternative formulations exist:
- Unlevered FCF: Before interest payments; used for enterprise valuation
- Levered FCF: After interest; available to equity holders
- FCF to Equity: After all debt payments and new borrowing
Why FCF matters more than earnings:
- Cash is king: You can't pay dividends or buy back stock with accounting profits
- Harder to manipulate: Accrual accounting allows more earnings management than cash tracking
- Sustainability test: Companies with positive earnings but negative FCF may face trouble
- Valuation foundation: Discounted cash flow models use FCF projections
FCF quality indicators:
- FCF/Net Income > 1.0: Cash generation exceeds reported earnings; high-quality earnings
- FCF/Net Income < 1.0: Earnings exceed cash; investigate working capital or capex trends
- Consistent FCF: Predictable cash generation supports dividend policies and valuations
Important considerations:
- Growth investment: Young companies often have negative FCF while investing heavily
- Maintenance vs. growth capex: Not all capital expenditure is equal; maintenance capex is mandatory
- Working capital swings: Seasonal businesses may show volatile quarterly FCF
- Acquisition activity: Serial acquirers may show poor FCF despite healthy operations
Evaluate FCF trends over multiple years. One year of negative FCF during expansion is acceptable; sustained negative FCF without a clear growth story raises red flags.