IRR Calculator (Irregular Cash Flows)

Calculate IRR for uneven contributions and withdrawals at irregular intervals.

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Initial Investment

$

Cash Flows

Positive amounts are money received; negative amounts are additional investments or payments.

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IRR Analysis

Internal Rate of Return15.5%
Total Inflows$150,000
Total Outflows$100,000
Net Value$50,000
How it works›

Model and assumptions. Finds a rate at which the discounted cash flows sum to zero. The irregular version discounts each flow by its entered elapsed years. Mixed-sign flows can have multiple roots or no root; an unavailable or ambiguous result is reported explicitly, and reinvestment is not guaranteed.OpenStax: internal rate of return