financial-analyst.ai XIRR & MOIC Calculator

Use this endpoint when you need to calculate returns on investments with irregular, unevenly-spaced cash flows — the standard for private equity, real estate syndications, and venture capital where capital calls and distributions happen on arbitrary dates. Prefer this over simple IRR calculators when exact dates matter for annualization accuracy, or when you also need MOIC alongside the rate of return in a single call.

• Invalid or non-convergent cash flow series (e.g., all positive or all negative flows) — returns computation error
• Malformed or missing dates — returns validation error
• Cash flows with no sign change (no initial investment outflow) — returns invalid input error
• Too few cash flow data points for meaningful XIRR computation
• Payment failure or insufficient USDC balance — returns 402 Payment Required