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TaxColony

Accountants workspace

Client desk for accountants: clients, filings and deadlines on your device

A simple practice tracker for tax practitioners: keep client PAN and GSTIN, track each filing's status, see what is overdue and export to Excel. Everything stays in your browser; export a backup to move it.

Runs in your browserNothing uploaded or storedRules with cited sources
! Needs reviewLast verified:
Client data stays in this browser on this device (localStorage). Nothing is sent to Tax Colony. Export a backup file regularly and import it on another device.

1Clients

ClientPAN / GSTINFilingsFee

2Filing tracker

DueClientFilingStatus

3Backup

This tool is for understanding and preparation only. Results are estimates based on the assumptions shown. File on the official channels.

Where your data lives

Client records are saved in this browser’s local storage on this device only. Tax Colony has no server copy, so clearing site data or switching browsers starts empty. Use Export backup to save a .json file and Import backup to load it on another device. Importing adds clients that are not already there; it does not overwrite.

Checks

PAN must look like ABCDE1234F. A GSTIN must be 15 characters and contain the client’s PAN in characters 3 to 12.

Sources

  1. PAN structure (Income Tax Department)
  2. GSTIN format (GST portal)

Last verified: 6 Nov 2026