The Challenge: A New Client with 104 Documents
We recently took over an Income Tax assessment case for a Private Limited Company. The case involved a Section 68 addition of Rs. 1.30 Crore on disclosed derivative income, with a demand of Rs. 80.82 Lakhs. The case was already in its second round of appeal before CIT(A) after an ITAT remand — meaning it had a long, complex history spanning from Assessment Year 2015-16 to the present day.
The client’s case folder on the Income Tax portal contained 104 PDF documents — notices under sections 148, 142(1), and 143(2), assessment orders, computation sheets, demand notices, CIT(A) orders, ITAT orders, penalty show cause notices, documentary evidence from both rounds, filing acknowledgements, and various submissions.
Traditionally, understanding and working on this case would take 3-5 full working days. We completed it in approximately 2 hours.
Step 1: Downloading 104 Documents Using Claude in Chrome
The first breakthrough came right at the beginning. Instead of manually logging into the Income Tax portal and downloading each document one by one — clicking, waiting, saving, renaming — we used Claude in Chrome (the Chrome browser extension).
With a single prompt, we instructed Claude to navigate the Income Tax portal, access the case records, and download all available documents. Claude in Chrome navigated the portal pages, identified all document links, and systematically downloaded all 104 PDF files.
Result: What would have taken 45-60 minutes of tedious clicking was completed in minutes.
Step 2: Organising Documents Using Claude Cowork
Once all 104 PDFs were in a local folder, we opened Claude Cowork and pointed it to that folder. With one prompt, we asked Cowork to read every document, understand its content and context, and organise them into logical sub-folders.
Cowork did not just sort by file type or date — it read the actual content of each PDF to understand what it was and which stage of proceedings it belonged to.
Folder | Contents | Files |
01_Notices | All notices u/s 148, 142(1), 143(2), SCNs | 11 |
02_Orders | Assessment orders, computation sheets, demand notices | 3 |
03_Replies | Written submissions, replies to notices, objections | 5 |
04_CIT(A) | CIT(A) appeal documents, Form 35, orders | 9 |
05_ITAT | ITAT appeal documents, set-aside order | 9 |
06_Remand | Post-remand notices, SCNs, impugned order | 9 |
07_Penalty | Penalty SCN, drop order, fresh SCN | 3 |
08_Exhibits_1st | Documentary evidence submitted in 1st round | 24 |
09_Exhibits_2nd | Documentary evidence for 2nd round CIT(A) | 15 |
10_Acknowledgements | Filing acknowledgements, e-verification | 12 |
11_Duplicates | Empty (no duplicates after MD5 hash check) | 0 |
Result: 11 well-organised sub-folders created in ~5 minutes. Manual effort: 1-2 hours.
Step 3: Assessment Diary — 7-Sheet Excel Workbook
This is where Cowork truly demonstrated its power. Using the same folder access, we asked it to prepare a comprehensive Assessment Diary in Excel format.
Sheet | Content | Key Data Points |
1. Case Summary | Assessee details, return info, core issue | PAN, AY, status, key amounts |
2. Chronological Tracker | Complete timeline of all events | 44 events from Sep 2015 to Feb 2026 |
3. Addition Analysis | Head-wise additions, 1st vs 2nd round | Section-wise comparison table |
4. Demand Tracker | Tax, interest, demand comparison | Both rounds with variance |
5. Penalty Tracker | Penalty history and current status | 1st round dropped, 2nd pending |
6. Appellate History | Full appellate journey with outcomes | CIT(A), ITAT, remand stages |
7. Document Index | Index of all 47 key documents | Date, type, description, folder |
Result: A comprehensive 7-sheet Excel diary produced in ~15 minutes. Manual effort: 4-6 hours.
Step 4: Drafting 5 Legal Documents
After understanding the complete case through the Assessment Diary, we asked Cowork to draft five legal documents:
• Appeal Memo u/s 246A: 8 grounds covering Section 68 inapplicability, double taxation, exceeding remand scope, and improper Section 144 invocation.
• Stay Petition u/s 220(6): Stay of Rs. 80.82 Lakhs citing prima facie merit, ITAT history, financial hardship, and CBDT 20% guideline.
• Reply to Penalty SCN u/s 271(1)(c): 7 submissions including no concealment, debatable issue, penalty already dropped in 1st round, and defective SCN.
• Written Submission for CIT(A): The most substantial document — 10 detailed items covering every aspect of the case with 10+ judicial precedents.
• Work Summary Report: Comprehensive anonymised summary of all work performed.
AI-Identified Insights: What Human Eyes Might Miss
One of the most remarkable aspects was that Claude identified several critical issues during its analysis:
Mathematical Error: The total income figure stated by the AO as Rs. 1,30,94,265 did not match the correct mathematical total based on the AO’s own figures (should be Rs. 18,28,547). A strong ground for appeal.
SEBI Order Mismatch: The SEBI Order cited by the AO pertains to stock options on MSEI, whereas the assessee’s transactions are currency derivatives on BSE-CDS — completely different segment and exchange.
Section Inconsistency: The order header mentions Section 144 while another page references Section 143(3) — demonstrating non-application of mind.
Penalty History: The 1st round penalty was dropped by the AO himself — strongly supports the argument that the issue is debatable and bona fide.
Time Comparison: AI vs. Manual
Task | AI Time | Manual Time | Savings |
Reading 104 PDFs | 15 min | 6-8 hours | ~95% |
Duplicate check (MD5) | 2 min | 2-3 hours | ~98% |
Folder organisation | 5 min | 1-2 hours | ~95% |
Assessment Diary (Excel) | 15 min | 4-6 hours | ~95% |
Appeal Memo | 10 min | 3-4 hours | ~95% |
Stay Petition | 10 min | 2-3 hours | ~93% |
Reply to Penalty SCN | 10 min | 2-3 hours | ~93% |
Written Submission | 20 min | 8-12 hours | ~96% |
Summary Report | 8 min | 1-2 hours | ~90% |
AI-Assisted Total: ~1.5-2 Hours | Manual Total: ~30-45 Hours (3-5 working days) | Time Saved: 93-95%
What This Means for Every CA Practice
This is not a theoretical exercise. This is real work performed on a real assessment case on 12th March 2026.
• For Sole Practitioners: You can now handle complex cases that previously required a team of 2-3 article clerks working for a week.
• For Medium Firms: Your team can take on more cases without proportionally increasing staff.
• For Article Clerks: AI frees you from tedious grunt work and lets you focus on understanding the law and building professional judgment.
• For Client Service: Faster turnaround means happier clients. No more “give us a week” — you can say “ready by tomorrow.”
Important Caveats and Limitations
• Human Review is Non-Negotiable: Every document Claude produced was reviewed by a qualified CA before any action was taken.
• Case Law Verification: Each citation must be verified from original sources. AI can occasionally hallucinate citations.
• Professional Judgment: Strategy, emphasis, and bench-specific arguments remain purely human decisions.
• Your Data Stays on Your Machine: Both Claude Cowork and Claude in Chrome store all conversation history and data locally on your computer, not on Anthropic’s cloud servers. Your client’s Income Tax documents, assessment orders, and financial details never leave your machine. This local-first architecture makes these tools significantly more suitable for confidential professional work compared to cloud-only AI solutions.
• ICAI Compliance: Use of AI tools must comply with ICAI guidelines. AI assists — it does not replace professional responsibility.
How to Get Started
1. Sign up for Claude Pro at claude.ai ($20/month, ~Rs. 1,700).
2. Install Claude in Chrome from the Chrome Web Store.
3. Download the Claude Desktop App for Cowork (macOS or Windows).
4. Start with a completed case — ask Cowork to organise files and prepare an assessment diary.
5. Always review AI output before filing. The CA’s signature carries legal responsibility.
Conclusion: The Future of CA Practice is Here
What happened on 12th March 2026 in our office is not an exception — it is a preview of how every CA office will work in the near future. The tools are available today, at an affordable price, and they work on real cases with real complexity.
The question is no longer “Should CAs use AI?” — the question is “How quickly can your practice adopt it?”
The firms that embrace these tools now will deliver faster, more thorough, and more accurate work to their clients — while the firms that wait will find it increasingly difficult to compete.
Disclaimer: Published by Himanshu Majithiya & Co., Chartered Accountants, Ahmedabad, for educational purposes only. All client identifying information has been redacted. AI-generated legal documents were reviewed by a qualified CA before action. Case laws must be independently verified. AI assists the professional — it does not replace professional judgment or responsibility. Published in compliance with ICAI Guidelines.
For more insights, visit www.himanshumajithiya.com or call +91 98795 03465