IRR Calculator

The internal rate of return is the annual return that makes a project break even — the discount rate at which its NPV is zero.

Your details

Initial investment$Annual cash flow$Years

Internal rate of return

11.53%

Internal rate of return11.53%

Formula

IRR solves: initial investment = Σ cash flow ÷ (1 + IRR)^t, here for a level annual cash flow.

Sources & methodology

•U.S. SBA — business guides — U.S. SBA

Last updated: 2026-07-20

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