There’s a half-second pause before you hit send on a client report or a board deck: do these numbers actually match the data they came from?
Most of us check by reopening the source, spot-testing a few cells, and trusting the rest. AI made that worse, not better — copilots hand you a confident figure with no way to see where it came from. Bookkeepers have a phrase for the gap: reviewed, but not reconciled. It looks done, but nothing was tied back to the source.
Today we’re launching Tally, built on one idea: a number you’re about to send someone should be able to prove itself.
What it does
Point Tally at a spreadsheet or report, and it re-adds every summary, total, and per-group figure from the underlying rows, marks each one verified or off, and shows the exact rows behind it as the receipt. Not a visual diff, not a plausibility check — arithmetic reconciliation against the detail.
The free check runs entirely in your browser. Drop an .xlsx and a zero-dependency reader unzips and parses it on your device — the file never leaves your machine, and there’s no signup. This isn’t a trial gimmick; it’s the design. Verification you have to upload your financials to get is verification most people will skip.
Connect a Google Sheet and Tally verifies the live document. The connection uses Google’s per-file scope — Tally can only see the specific file you pick, never your Drive.
Connect QuickBooks, and Tally goes somewhere a single spreadsheet can’t. A report can be internally perfect — every total ties to its own rows — and still disagree with the books, because the error only exists across the two sources: a voided invoice, a restated month, a credit memo that landed after the export. Tally re-sums your actual invoices and credit memos and tells you the one figure in your report that doesn’t tie out, with the underlying documents. The connection is read-only, reviewed by Intuit, and none of your QuickBooks data is stored.
Put a report under watch, and Tally re-verifies it on a schedule — so when a previously-verified figure quietly stops tying out, you hear about it before your client does.
Why we built it
JieGou’s whole thesis is that the durable layer in AI operations isn’t generation — it’s governance: the checks, gates, and records that make automated work trustworthy. Tally is that conviction applied to the most ubiquitous business artifact there is. Generating a number takes a second now, and being wrong about it is just as fast. The useful thing to build isn’t a smarter generator. It’s the checker underneath — the part that recomputes from the source and hands you the receipt.
Determinism alone doesn’t get you there, either. A pipeline that produces the same number every time will reproduce a wrong mapping perfectly, a million times, fully auditably. Repeatability isn’t correctness. Correctness needs a check that stands outside the system that produced the number — against the source of truth. That’s the seat Tally takes.
What it isn’t
Tally is not a BI tool, doesn’t replace your accounting system’s own reports, and doesn’t judge whether your underlying data is right — it verifies that the report matches the detail and the detail matches the books. Today it’s single-currency and works at the invoice level. It’s early, and we’d rather tell you that than let you find out.
Try it
The in-browser check is free and needs no signup: drop a spreadsheet at tally.jiegou.ai and you’ll see it work in a few seconds. If you send numbers other people rely on — client reports, board decks, investor updates — we’d genuinely value your read on where it falls short.