Payback Period Calculator

Compare simple and discounted recovery time for an investment with equal annual net cash inflows.

Simple payback period4.1667 years
USD

0.01 – 10000000000

USD / year

0.01 – 10000000000

%

0 – 100

Simple payback period

4.1667 years

  • Discounted payback (fractional-year interpolation)4.79 years

Payback ignores cash flows after recovery. Discounted payback interpolates within a year rather than assuming continuous payments.

How this was calculated

Simple payback = initial investment ÷ equal annual net cash inflow.

Discount each annual cash inflow, accumulating until it covers the investment.

How payback period is calculated

Simple payback = initial investment ÷ annual net cash flow. For discounted payback, discount each year’s cash flow and accumulate it until the initial outlay is recovered, interpolating within the final year.

Worked example

An initial $50,000 outlay followed by $10,000 annual net cash inflows has a five-year simple payback. At a 0% discount rate, discounted payback is also five years.

References

Frequently asked questions

Does a shorter payback always mean a better investment?

No. Payback ignores later cash flows, and simple payback ignores their timing. Compare overall return and risks as well as recovery time.

Last updated . Results are estimates for informational purposes only.