Dueproof reads tax, regulatory and court notices in English and 22 Indian languages, and keeps one register of what is owed and when. Every entry is outlined on the page it came from. It runs on your own server.
Open source, Apache 2.0. Version 0.1 is early: run it beside your current process first.
| No. | Received | Subject | Desk | Due |
|---|---|---|---|---|
| 215 | 14 Oct 2026 | Regional PF Commissioner | Payroll & Labour | 12 Nov 2026 |
| 216 | 20 Oct 2026 | National Faceless Assessment Centre | Direct Tax | 4 Nov 2026 |
| 217 | 24 Oct 2026 | Asst. Commissioner of State Tax | GST & Indirect Tax | 23 Nov 2026 |
| 218 | 24 Oct 2026 | Asst. Commissioner of State Tax | GST & Indirect Tax | 18 Nov 2026 |
Office of the Assistant Commissioner of State Tax
Commercial Taxes Department, Northline Division
Reference No: ZD2910260012345 Date: 20 October 2026
Subject: Notice under Section 61 for intimating discrepancies in the return (Form GST ASMT-10)
On scrutiny of the returns filed for the above period, discrepancies were noticed in the input tax credit claimed against the supplier statements.
You are hereby directed to explain the discrepancies and pay the tax of Rs. 4,52,300 with interest within 30 days of receipt of this notice.
A personal hearing is fixed on 18 November 2026 at 11:00 AM before the undersigned at the Division office.
Choose an entry to see the page it came from. Three sample notices gave four entries: the GST notice asks for a reply and fixes a hearing.
Anyone who receives notices on someone else's behalf, and answers for it when a date slips.
Hundreds of clients, each with GST, income-tax and TDS logins. Notices arrive by email, by post and as photos forwarded on WhatsApp.
One register across every client, sorted by what is due first, each date traceable to the line that set it.
ROC letters, stock-exchange queries, RBI and SEBI circulars. Each needs an owner and a date the board can see.
An owner and a status on every duty, a weekly email of what is due, and a history of every change.
Circulars in English, orders and summons in regional languages, and auditors who ask how you knew.
Indian-language notices read on your own server, with the original wording kept as the proof.
No language model and no cloud service. Rules you can read, and a page you can check.
Typed PDFs are read directly. Scans and phone photos are straightened and run through OCR.
Indian-language text is translated on your machine by IndicTrans2, so one set of rules reads every language.
Rules pick out duties, deadlines, hearings, amounts, reference numbers and the sections cited.
Each finding is outlined on its page. If the passage can't be found, Dueproof says so rather than guess.
Give each duty an owner, correct a date, mark it done. Every change is kept, and a weekly email lists what is due.
Many notices count from the day they reach you, not the day they were signed. Dueproof records when each one arrived and counts from there.
If the arrival date is wrong, correct it. The change is logged with your name, and the original reading is kept. Try it: change the date on the right.
“…pay the tax of Rs. 4,52,300 with interest within 30 days of receipt of this notice.”
Notice dated 20 Oct 2026
Scans and photographs are read in 15 of them; the other 7 from typed PDFs, because no OCR model exists for them yet. Six are tested end to end with the translation model.
One Python service and one database file on a machine you control. Nothing is sent anywhere: no cloud service, no API key, no telemetry.
Built-in accounts, or your own single sign-on in front.
One command to back up, verify and restore.
dueproof eval measures it on your own documents.
# Needs Python 3.12+ and Tesseract
git clone https://github.com/MaanavKrishna/dueproof
cd dueproof
python3 -m venv .venv
.venv/bin/pip install -e .
.venv/bin/dueproof users add you@example.org --admin
.venv/bin/dueproof serveThen open http://127.0.0.1:8000 and drop in a notice. dueproof doctor checks the setup.
Run it for a month on the notices you already track by hand, then compare the two registers. If Dueproof missed something, tell us what it was.