Rule #1 Investing

Payback Time Calculator

Determine how many years it will take for a company's earnings to cover your stock purchase cost.

Or use Stock Price × Shares

Operating CF - CapEx

Payback Time

— years

What is Payback Time?

Payback Time is a valuation method from Phil Town's book "Payback Time" that calculates how many years it would take for a company's free cash flow to equal the price you paid for the stock. Think of it as: "If I owned the whole company, how long until the business pays me back?"

Rule #1 Guideline

Look for companies with a Payback Time of 10 years or less. The shorter the payback time, the better the value. A payback time under 8 years is excellent.

How It Works

  1. Start with the company's current free cash flow
  2. Project future free cash flow using the growth rate
  3. Add up cumulative free cash flow each year
  4. Count the years until cumulative FCF equals the market cap

Free Cash Flow Formula

Free Cash Flow = Operating Cash Flow Capital Expenditures

Why Payback Time Matters

  • Owner's Perspective: Treats the stock purchase like buying the entire business.
  • Cash Focus: Uses free cash flow, which is harder to manipulate than earnings.
  • Simple to Understand: Easy to compare across different companies and industries.

Master Payback Time Investing

Learn advanced valuation techniques in Phil Town's free investing workshop.

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