Discounted Payback Period
Find when discounted inflows recover an initial investment.
Your numbers
Discounted payback
Educational estimate using your assumptions; no live rates, tax rules or investment recommendations. Returns can be negative and are not guaranteed.
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Formula
Accumulate discounted inflows; interpolate within the recovery period
Find when discounted inflows recover an initial investment.
Worked example
- Cash flows at equally spaced period ends, starting at time 0
- -1000, 400, 400, 400
- Discount rate per period (%)
- 0
- Discounted payback
- 2.5 periods
- Discounted net balance
- 200
Scope and limitations
Educational estimate using your assumptions; no live rates, tax rules or investment recommendations. Returns can be negative and are not guaranteed.
Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.
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Formula version: 743e5badd040 · Example checked: