Extended Internal Rate of Return (XIRR) Calculator
Estimate the effective annual return for irregular cash flow patterns such as SIP top-ups, redemptions, or withdrawals.
What is Extended Internal Rate of Return (XIRR) Calculator?
An Extended Internal Rate of Return (XIRR) calculator computes the annualized return for investments with irregular cash inflows, SIP contributions, top-ups, and partial withdrawals.
Financial calculators are useful because they turn assumptions into numbers you can compare. Instead of guessing, you can test different values for amount, time horizon, expected rate, and goal requirements to understand how the final result changes before you commit.
How this calculator works
Calculates discount rate r such that Net Present Value (NPV) = Σ [C_i / (1 + r)^((d_i − d_0) / 365)] = 0, where C_i represents cash flows and d_i represents dates.
Worked example
Investing ₹10,000 on Jan 1, ₹20,000 on March 15, ₹15,000 on July 20, and having a portfolio value of ₹52,000 on Dec 31 yields an annualized XIRR of approximately 14.8%.
Most common mistakes people make
- Confusing XIRR with CAGR (CAGR only works for single one-time lumpsums, not SIPs).
- Judging XIRR over short horizons (<1 year), where recent cashflows cause wild percentage swings.
- Entering withdrawals as positive cashflows instead of negative outflows (or vice versa).
- Ignoring cash flow timing distortions when interpreting mutual fund app statements.
- Comparing XIRR directly to annual simple interest without understanding compounding frequency.
Frequently asked questions
Extended Internal Rate of Return (XIRR) Calculator helps you estimate the likely result of a financial decision using standard formulas and the assumptions you enter for amount, rate, duration, and frequency.
The calculator applies the relevant financial formula to your inputs and shows a real-time estimate so you can compare different scenarios before making a decision.
It gives a practical estimate based on standard formulas and assumptions, but actual outcomes can vary with market performance, policy changes, fees, taxes, and changing personal circumstances.
Yes. These calculators are designed for quick planning and comparison, especially when you want to estimate future values, repayments, or coverage needs before locking in a financial choice.
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Disclaimer
XIRR assumes cash flows are reinvested at the same internal rate of return. For portfolios with heavy cash movements, Time-Weighted Rate of Return (TWRR) may also be evaluated.