FREE · NOTHING SENT ANYWHERE
Inside the tools you already use
Both are free, work offline once installed, and send nothing anywhere. The add-on reads only the sheet you have open. The extension cannot read any web page.
GOOGLE SHEETS ADD-ON
A client compliance tracker in one click, plus tax functions
Extensions → Filingo → Create client compliance tracker. You get this month's tracker: one row per client, one column per filing due, colour-coded Pending / In progress / Done, with documents and fee columns. Keep client names in a sheet called “Clients” and next month fills itself.
| =GSTIN_VALID(A2) | TRUE or FALSE, including the check character |
| =GSTIN_CHECK(A2:A500) | Says exactly what is wrong with each GSTIN |
| =GSTIN_STATE(A2) =GSTIN_PAN(A2) | State and PAN from a GSTIN |
| =PAN_TYPE(B2) =TAN_VALID(C2) | Holder type from a PAN; TAN format check |
| =TDS_NEW_CODE("194C") | New payment code under the Income-tax Act 2025 |
| =TDS_NEW_SECTION("194Q") | New section reference, e.g. 393(1) Sl. 8(ii) |
| =RUPEES_IN_WORDS(D2) | Rupees One Lakh Twenty Thousand Only |
| =GST_SPLIT(1180, 18, TRUE) | Taxable, IGST, CGST, SGST, total in five cells |
Every function accepts a whole range. TDS codes cover the common sections confirmed from two published tables; confirm on the e-filing portal before filing.
CHROME EXTENSION
A side panel for quick checks while you work on the portals
- • Select a GSTIN, PAN or TAN on any page, right-click, and check it. A mistyped character is caught by the check digit.
- • Type an old TDS section like 194C or 94Q and get the new payment code, or search by word: rent, contractor.
- • Filings due in the next 45 days for the kinds of clients you handle.
- • Amount in words and a GST split, without opening a calculator.
Permissions: side panel, right-click menu, local storage. It asks for no access to any website, so it cannot see the portals, your logins or your data.
The Chrome extension is live on the Chrome Web Store. The Sheets add-on's Marketplace listing is in review; until it is live it can be installed by hand in two minutes, so write to us and we'll send the steps.