Free cash flow (FCF) is the actual cash a company has left after covering operating costs and capital expenditures. The basic formula is Operating Cash Flow − Capital Expenditures. It's a truer measure of financial health than profit — Warren Buffett calls it "owner's earnings."
What is Free Cash Flow?
Free Cash Flow (FCF) is the actual cash a company has left after paying for everything it needs to maintain and grow its business.
It shows:
- How much cash is actually available
- Ability to fund growth
- Financial flexibility
- True operational efficiency
👆 By the way, an interesting fact: Warren Buffett considers Free Cash Flow one of the most important metrics when evaluating companies – he calls it the “owner’s earnings”.
How to Calculate Free Cash Flow
The Basic Formula for Free Cash Flow
Free Cash Flow = Operating Cash Flow − Capital ExpendituresCash left after running & growing the business
Where:
Operating Cash Flow = Cash from day-to-day business
Capital Expenditures = Money spent on long-term assets
The Detailed Formula
Free Cash Flow = Net Income
– Changes in Working Capital
– Capital Expenditures
Example Time! ✨
Let’s say a company has:
- Net Income: $1,000,000
- Depreciation: $200,000
- Working Capital Increase: $150,000
- Capital Expenditures: $300,000
$1,000,000 + $200,000 − $150,000 − $300,000 = $750,000 FCFNet income + D&A − working capital − capex
Why Free Cash Flow Matters
Investment Decisions 🎯
- Shows ability to fund growth
- Indicates need for external funding
- Guides acquisition decisions
Business Health 🏥
- Reveals true profitability
- Shows operational efficiency
- Indicates financial flexibility
Valuation 💎
- Helps determine company value
- Guides investment decisions
- Shows business sustainability
Remember: positive Free Cash Flow is great, but context matters:
- Growing companies might have negative FCF due to investments
- Mature companies should have stable, positive FCF
- Seasonal businesses might see fluctuations
Free Cash Flow FAQ
How do you calculate free cash flow?
The simple version: Operating Cash Flow − Capital Expenditures. The detailed version: Net Income + Depreciation & Amortization − Changes in Working Capital − CapEx.
Why is free cash flow important?
It shows the real cash available to fund growth, pay debt, or return to investors — harder to manipulate than accounting profit, which is why investors weigh it heavily in valuation.
What's the difference between free cash flow and net income?
Net income is an accounting profit that includes non-cash items. FCF is actual cash after capex — a company can be profitable on paper yet have negative free cash flow.
Is negative free cash flow bad?
Not always. Fast-growing companies often run negative FCF while investing heavily. For mature companies, though, persistent negative FCF is a warning sign.
