About
A ledger, not a wealth app
XirrRupee exists because the percentage on a SIP dashboard is often a CAGR in costume — or a number you cannot rebuild.
XirrRupee is a static xirr calculator aimed at people who already know they put money into Indian mutual funds on uneven dates. You type or paste cash flows. JavaScript on this page solves XIRR with Newton–Raphson (365-day year, Excel-compatible). Nothing is posted to a server. There is no login.
We are not a registered investment adviser, research analyst, or mutual-fund distributor. We do not hold your PAN, folio, or units. If you want a product that syncs CAS emails and paints charts, that is a different tool with a different privacy bargain.
The site is built as an Astro static project for Cloudflare Pages: HTML, CSS, and a small client bundle. Ad slots are reserved so a publisher can turn on AdSense later without restyling the ledger.
Source of the arithmetic: the same present-value identity Excel documents for XIRR. We test against Microsoft’s published cash-flow example. If you find a folio that converges in Sheets and not here,send the anonymised rows.