Payback Period Calculator
Find out how long an investment takes to recover its cost
Enter what you pay and what comes back
Free · No sign-up · The answer updates as you type
Pick the second one if the cash coming back changes from year to year, or if any year brings in nothing or costs you money.
$
The whole upfront cost you need to earn back, as one figure. For example 50,000.
$
The same amount every year, with the running costs already taken off. For example 12,000.
What this money could earn in a year if you put it somewhere else, for example 10 for 10%. Leave it at 0 and every year counts the same.
Counting the wait, you have your money back after about 5 years and 8 months
Simply added up, it takes about 4 years and 2 months for $12,000 a year to cover the $50,000 you pay. But money you wait for is worth less than money in your hand: if yours could earn 10.0% a year elsewhere, it takes about 5 years and 8 months before what has come back is worth what you paid.
The numbers behind that
What you pay at the start
One payment, made before the first year starts.
$50,000
Cash coming back each year
The same amount every year, counted at the end of the year, running costs already taken off.
$12,000
Money back, simply added up
$50,000 divided by $12,000 a year, which is about 4 years and 2 months. Every year counts the same, however long you wait for it. This is the simple payback period.
4.17 years
Money back, counting the wait
Each year's cash is first valued today at 10.0% a year, then added up, and it takes about 5 years and 8 months for that total to cover what you pay. This is the discounted payback period.
5.67 years
What would bring it back sooner
Click an option to jump to the field you would change.
Each year's cash is counted as arriving at the end of that year. A part year is counted in proportion.
How the answer moves if you price the wait differently
The return you could earn elsewhere is the one input nobody really knows, and the payback stretches quickly as it rises. Here is the same project priced across a band of rates, including any rate at which it stops paying back altogether.
| Return you could earn elsewhere | Time to get your money back |
|---|---|
| 6.0% | 4.94 years |
| 8.0% | 5.28 years |
| 10.0% (yours) | 5.67 years |
| 12.0% | 6.12 years |
| 14.0% | 6.70 years |
These rows carry your $12,000 a year forward for you. They are this page's own projection, not years you typed in, and a real project can of course stop earning before the last row.
| Year | Cash that year | Running total | Running total in today's money |
|---|---|---|---|
| 1 | $12,000 | $12,000 | $10,909 |
| 2 | $12,000 | $24,000 | $20,826 |
| 3 | $12,000 | $36,000 | $29,842 |
| 4 | $12,000 | $48,000 | $38,038 |
| 5 | $12,000 | $60,000 | $45,489 |
| 6 | $12,000 | $72,000 | $52,263 |
| 7 | $12,000 | $84,000 | $58,421 |
The darker row is where the cash you have taken back, valued in today's money, finally covers what you paid. The lighter row is where the plain running total covers it, which always happens sooner because it ignores the cost of waiting.
Insight: The payback period measures liquidity and risk, not profitability. The simple payback ignores the time value of money, and both versions ignore every cash flow that arrives after the investment is recovered. Always confirm the decision with net present value (NPV) and internal rate of return (IRR).
The payback period is one of the simplest capital budgeting metrics. It answers a single question: how many years will it take for an investment to repay its initial cost from the cash flows it generates? A shorter payback period means capital is recovered sooner and the investment carries less exposure to future uncertainty.
Payback = Years before recovery + (Unrecovered cost / Next year cash flow)
Step 1: Choose whether the project hands you the same amount every year, or a different amount each year. Pick the second one if any year brings in nothing or costs you money.
Step 2: Enter what you pay out at the start, then either the constant yearly cash or one figure per year, adding and removing years as you need them.
Step 3: Put in the yearly return you could earn on the same money elsewhere. That is what prices the wait and turns the plain payback into a discounted one. Leave it at zero if you only want the plain count.
Step 4: Read the answer, which is already on screen. There is no button to press: the payback, the plain-language explanation, the rate band and the year-by-year table all follow whatever you type.
What Is the Payback Period?
The payback period is the length of time it takes for an investment to generate enough cash flow to recover its initial cost. If you spend 50,000 on a project and it returns 12,000 a year, the simple payback period is roughly 4.2 years, the point at which cumulative cash flows first equal the money you put in. It is one of the most intuitive measures in capital budgeting, even though it has well-known limitations.
When cash flows are even, the calculation is a simple division: initial investment divided by the annual cash flow. When cash flows are uneven, you accumulate each year's cash flow in turn and find the point at which the running total crosses the initial cost, adding a fraction of the final year to account for partial recovery. The payback period is best understood as a measure of liquidity and risk, how quickly your money comes back, rather than a measure of how profitable an investment is overall.
Discounted Payback Period
Discounted CF (year t) = CF / (1 + r)^t
The biggest weakness of the simple payback period is that it treats money received in year five as equal to money received today. The discounted payback period corrects this by first discounting each year's cash flow to its present value using a required rate of return, and only then accumulating those present values until they recover the initial investment. Because discounting reduces the value of every future cash flow, the discounted payback period is always equal to or longer than the simple payback period.
The discounted payback period is a more economically honest break-even point because it reflects the true cost of waiting for your money. It still shares one limitation with the simple version: both ignore every cash flow that arrives after the investment is recovered. A project could break even quickly and then produce nothing further, while another could break even slowly but generate strong cash flows for many more years. That is why payback, discounted or not, should never be the only metric behind a decision.
Discounting also has a consequence that is easy to miss, and it is the reason this calculator can say never and mean it. When the same amount arrives every year, the present values of those payments shrink geometrically, and their total converges: the yearly amount divided by the rate is as much as they can ever add up to, no matter how many years you allow. Price the wait at 15 percent a year and 12,000 a year is worth at most 80,000 today, so a project costing 100,000 will not be recovered on that basis in a hundred years or a thousand. The undiscounted total still crosses the line eventually, which is exactly the point: the money comes back, just too slowly to justify the wait at the rate you chose.
Pros, Cons, and Why to Combine It with NPV and IRR
The payback period has genuine strengths. It is simple to calculate and easy to explain, it emphasises liquidity by rewarding investments that return capital quickly, and it acts as a rough risk filter, the sooner you recover your money, the less exposed you are to forecasts that may not materialise. For capital-constrained businesses or fast-moving industries, a short payback can be a sensible screening rule.
Its weaknesses are equally clear. The simple payback ignores the time value of money, both versions ignore all cash flows after recovery, and neither tells you anything about total profitability. This is exactly why payback should be paired with discounted cash flow metrics. Net present value (NPV) measures the total value an investment creates in today's money, and the internal rate of return (IRR) expresses profitability as an annualised percentage. A practical workflow is to use the payback period as a quick liquidity and risk screen, and then confirm the decision with NPV and IRR before committing capital.
To complete the analysis, run the same cash flows through the NPV calculator to measure total value created, the IRR calculator to find the annualised return, and the present value calculator to understand the discounting that underpins all three.
Frequently Asked Questions About the Payback Period Calculator
There is no universal benchmark. A good payback period depends on the industry, how risky the project is, how long the asset will actually keep earning, and what else you could do with the same money. Shorter is generally better, because capital back in your hands sooner is capital you can redeploy, and because a forecast about year two is far more trustworthy than one about year twelve. Any cutoff you use is a policy your organisation sets for itself rather than a rule of finance, and a sensible one is shorter where technology or demand moves quickly and longer for infrastructure that will run for decades. Because the payback period ignores everything that happens after recovery, and the simple version ignores the cost of waiting, treat it as a liquidity and risk screen and let net present value and internal rate of return answer the profitability question.
The simple payback period adds up the undiscounted annual cash flows until they equal the initial investment, ignoring the time value of money. The discounted payback period first discounts each year's cash flow to its present value using a required rate of return, then accumulates those present values until they recover the initial cost. Because discounting shrinks every future cash flow, the discounted payback period is always equal to or longer than the simple payback period, and it gives a more economically accurate picture of when an investment truly breaks even.
The payback period only tells you how quickly you recover your money, it says nothing about total profitability or the cash flows that occur after recovery. A project with a fast payback can still destroy value if its later cash flows are weak, while a project with a slow payback can be highly profitable over its full life. Net present value (NPV) measures the total value created in today's money, and the internal rate of return (IRR) expresses profitability as an annualized percentage. Using payback for liquidity and risk, and NPV or IRR for profitability, gives a complete capital budgeting view.
On a discounted basis, yes, and this calculator will tell you so and show its working. When the same amount arrives every year, the present value of that cash continuing forever is the yearly amount divided by the rate. If you are getting 12,000 a year and you price waiting at 15 percent a year, that ceiling is 80,000 in today's money, so a project costing 100,000 can never be recovered on that basis however long it runs. The plain undiscounted total does still get there eventually, which is why the calculator keeps showing it: the money comes back, it just comes back too slowly to be worth the wait at the rate you chose. This is different from entering a handful of years that happen to fall short, which the calculator describes as running out of years rather than as never.
Enter it. Switch to the year-by-year option and type a zero for a fallow year, or a negative amount for a year that costs you money, such as a shutdown, a major overhaul, or a replacement part way through the life of the asset. Those years are perfectly normal and the calculator treats them properly: the running total simply stops rising, or falls back. If a later year pushes the running total back below what you paid after it had already covered it, the calculator says so, because a break-even that does not hold is not really a break-even.
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Educational use only. This tool provides estimates for informational purposes and does not constitute financial, investment, tax, or legal advice. Results are based on inputs you provide and mathematical models, they do not guarantee future performance. Always consult a qualified financial adviser before making investment decisions.