IRR (Internal Rate of Return)

Updated: Jan 30, 2026

This hub helps you answer a common question: What return am I really getting? Use the IRR calculator to compute the internal rate of return for an investment or real estate deal. Then read the guides below to understand when IRR works well (and when it can mislead), how to handle irregular cash flows (XIRR), and how IRR compares to NPV, hurdle rates, and cash-on-cash return.

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Tip: Don’t judge deals by IRR alone. Compare IRR with absolute dollars (NPV), timeline, and risk.

How to use the IRR hub

IRR is the discount rate that makes a project’s net present value (NPV) equal to zero. It’s popular because it turns a stream of cash flows into one “annualized” number. But IRR can mislead when cash flows change signs multiple times, when reinvestment assumptions are unrealistic, or when comparing projects of different size.

Start with the IRR calculator, then use the guides to interpret IRR correctly: IRR vs NPV, discount rates, XIRR for irregular dates, MIRR as a safer alternative, and common modeling mistakes.

Start here

What is IRR? Definition, intuition, and why it’s used in investing and real estate. IRR vs NPV Why a “higher IRR” isn’t always better if the project is smaller. XIRR (irregular cash flows) How to calculate return when dates aren’t evenly spaced. When IRR misleads Multiple IRRs, reinvestment assumptions, and scale problems.

All IRR guides

What is IRR? IRR meaning, intuition, and how it relates to NPV. How to calculate IRR Step-by-step examples and what the calculator is solving for. IRR vs NPV Percent returns vs dollar value—how to compare projects. Discount rate vs IRR Choosing a discount rate and interpreting IRR against it. XIRR for irregular cash flows Uneven dates, contributions, distributions, and real-world investing. MIRR (Modified IRR) A more realistic alternative when reinvestment assumptions matter. Real estate IRR Cash flows from rent, expenses, financing, and sale proceeds. Cash-on-cash vs IRR Why cash-on-cash can look good while IRR (or NPV) tells a different story. Multiple IRRs (and why it happens) Sign changes, non-conventional cash flows, and how to handle them. Hurdle rate What minimum return investors require and how it differs from IRR. When IRR misleads Timing, scale, reinvestment, and comparing across different durations. Common IRR mistakes Wrong cash flow signs, missing dates, fees ignored, and bad comparisons.

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Rent or Invest Compare strategies by net worth outcomes over time. Renovation ROI Project-level returns: cost vs value added and payback. Mortgage Overpayment Compare guaranteed interest savings vs investing for return. Property Sale Model sale proceeds and fees—key for real estate IRR.

IRR FAQ

What is IRR (internal rate of return)?

IRR is the discount rate that makes NPV equal zero. In plain terms, it’s the annualized rate that best “fits” the cash flows of an investment (contributions and distributions).

Is a higher IRR always better?

Not always. IRR is a percentage, so it can favor smaller projects or faster paybacks. NPV (dollar value) and risk/timeline context often matter more.

What is XIRR?

XIRR is IRR for cash flows that occur on irregular dates (not evenly spaced). It’s common for real investments where deposits and withdrawals happen at different times.

Why can IRR be misleading?

IRR can produce multiple solutions when cash flows change sign more than once, and it implicitly assumes reinvestment at the IRR rate. It also doesn’t measure “how many dollars” you make.

What is a good IRR?

“Good” depends on risk, timeline, and your hurdle rate (minimum acceptable return). Compare IRR against alternatives (risk-free rates, markets, or comparable deals) rather than using one universal benchmark.

Ready to calculate IRR?

Run IRR and compare with NPV—percent returns and dollar value tell different stories.

Open calculator → Understand IRR vs NPV