Cite as: Real Problem AI problem “Why does every Indian CA lose September to matching Tally invoices against GSTR-2B by hand?”. Opportunity score 8.5 out of 10 (severity 9, AI feasibility 9, market signal 9, competition gap 7). Category FinTech. Trend Agents. Source signal: CAClubIndia forum and r/IndiaTax recurring GSTR-9C reconciliation threads.. Canonical URL: https://www.realproblem.ai/archive/why-is-gstr-9c-reconciliation-between-tally-and-gstr-2b-still-manual.
Why does every Indian CA lose September to matching Tally invoices against GSTR-2B by hand?
Indian CAs match Tally purchase ledgers line by line against GSTN's GSTR-2B, chasing ITC mismatches on supplier invoices filed in the wrong month, and ClearTax only flags without resolving.
Who has it: Indian CA running a 200-client compliance practice.
- Severity9/10
- Feasible today9/10
- Market signal9/10
- Competition gap7/10
What people report
CAs describe the GST season as matching huge numbers of client invoices against GSTR-2B, then chasing each supplier who filed an invoice in the wrong month.
Our summary of a complaint that recurs in public posts, not a quote. Nobody submitted it to Real Problem AI.
Seen in: CAClubIndia forum and r/IndiaTax recurring GSTR-9C reconciliation threads.
What nothing does yet
An agent that ingests Tally XML plus GSTR-2B JSON, classifies each mismatch (wrong month, wrong GSTIN, missing invoice, rate diff), drafts WhatsApp and email follow-ups, and queues rectification journal entries back into Tally.
Tools that solve this
3 named so far, and where each one stops.
- ClearTax GST
Shows mismatches but does not auto-draft supplier follow-ups or post Tally rectification.
- TallyPrime
Ledger side only, no GSTN reconciliation logic.
- Zoho Books
Weak on multi-client CA workflow.
Why it is archived
Retired in the 2026-10-25 freshness audit: evergreen GST reconciliation pain from May 2026 with no dated source.
How you might build it
- 01Tally XML plus GSTN API ingestion
- 02LLM mismatch classifier with Indian GST RAG
- 03WhatsApp Business API for supplier chase
- 04Tally rectification entry writer
Founders working in this area
- Archit Gupta, Founder and CEO, Clear
Not affiliated with Real Problem AI.
#F16 · Canonical URL: https://www.realproblem.ai/archive/why-is-gstr-9c-reconciliation-between-tally-and-gstr-2b-still-manual