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Total upfront cost
$
Net cash inflow per year
Payback Period
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Year-by-Year Cash Flow
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How to Calculate Payback Period
The payback period tells you how many years it takes to recover your initial investment from the net cash flows generated by that investment.
Simple Payback = Initial Investment ÷ Annual Cash Flow
Example: $50,000 investment ÷ $12,000/year = 4.17 years (4 years, 2 months)
For irregular cash flows, you sum the annual cash flows year by year until the cumulative total equals the initial investment. The fraction of the final year is calculated proportionally.
Frequently Asked Questions
What is a good payback period?
There is no universal standard, but most businesses target payback periods of 2–4 years for equipment and technology investments, and 5–10 years for commercial real estate. Shorter is generally better as it means less exposure to risk and faster return of capital. High-risk investments typically require shorter payback periods to compensate for uncertainty.
What are the limitations of payback period?
The simple payback period ignores the time value of money (a dollar today is worth more than a dollar in 5 years), ignores cash flows that occur after the payback point, and doesn't measure profitability. For a more complete analysis, use NPV (Net Present Value) or IRR (Internal Rate of Return) alongside payback period.
What is the discounted payback period?
The discounted payback period adjusts each future cash flow by a discount rate (your required return or cost of capital) before calculating when the investment is recovered. This gives a more conservative and realistic payback estimate. Because discounted cash flows are smaller than nominal cash flows, the discounted payback period is always longer than the simple payback period.
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