Problem
Solo chartered accountants in Tier-2 India handle 50-300 GST clients each, mostly in Tally or Excel. Monthly GSTR-1 and 3B filing eats 60-70% of their time, and reconciliation mismatches (ITC vs. books) cause ₹50k+ penalties per missed quarter. Existing tools (ClearTax, Zoho Books) target the business, not the CA.
Solution
A desktop + web copilot that ingests Tally backups and bank statements, auto-classifies entries into GST heads using a fine-tuned LLM, pre-fills GSTR-1/3B JSON, and flags mismatches with explanations. CA reviews and one-click submits to the GSTN portal via official APIs. ₹2,999/month for 50 clients.
Why Now
GSTN opened its OTP-less API (AA-based consent) in March 2026, removing the biggest UX blocker. LLMs are now cheap enough (Haiku-class models at ₹0.50/100 classifications) to make per-invoice AI pricing sensible. US analogue Taxly AI just crossed ₹15Cr ARR in 14 months.
Target User
Solo CAs or 2-partner firms in cities like Indore, Nagpur, Coimbatore, Surat — 10+ years in practice, already pay ₹1-3k/month for ERP/Tally, and serve clients with ₹50L-5Cr turnover. First 100 customers from ICAI Tier-2 regional branches.
Business Model
₹2,999/month/firm up to 50 clients, +₹50/extra client. 4 people can service ~1,500 firms = ₹5Cr ARR in year 2. 80% gross margin after LLM inference cost. Annual plans at 20% discount. Expansion: audit working-paper copilot at ₹4,999/month.
Competitive Landscape
- Direct (India): ClearTax (B2B SaaS, not CA-focused), Zoho Books (general ERP), IRIS GST (enterprise)
- Direct (global reference): Taxly AI (US), Keeper Tax (US), Caseware IDEA (audit)
- Why we win: CA-native UX, vernacular (Hindi/Gujarati/Tamil) support, and AA-rail integration for bank data — nobody else has all three
6-Month Plan
- M1-2: Tally backup parser + GSTR-1/3B JSON builder, ~₹4L
- M3: LLM classifier fine-tuned on 50k labelled Tally entries, ~₹3L
- M4: GSTN filing API integration + mismatch reconciliation, ~₹2L
- M5: Closed beta with 30 ICAI-referred CAs in Indore + Pune, ~₹2L
- M6: Paid launch at ₹1,999 intro pricing → ₹2,999, ~₹5L sales+marketing. Total ~₹16L.
Risks
- GSTN API changes — government APIs break quarterly. Mitigation: abstract API calls, keep a manual-file fallback.
- LLM hallucination on tax — wrong classification = penalty. Mitigation: CA must approve every filing; AI is assist, not auto-submit.
- Enterprise competitor pivots down-market — ClearTax could target CAs directly. Mitigation: CA-brand distribution partnerships with ICAI branches.
Score Breakdown
- Market 16/20: 9L solo CAs × ₹3k/month × 10% capture = ₹320Cr TAM, growing with GST compliance depth.
- Capital 11/15: Tighter margin at ₹16L — LLM inference and API credits eat budget.
- Team 7/10: Needs 2 engineers + 1 tax-domain-expert + 1 sales. Specialist hire adds risk.
- Trend 11/15: AA + GSTN API opening is new; Taxly AI proves demand abroad.
- Moat 13/15: Vertical workflow lock-in, fine-tuned model on CA-specific data, distribution via ICAI.
- Economics 13/15: 80% margin, sticky (CAs don't switch mid-year), expansion revenue clear.
- Speed 7/10: 14 weeks — GSTN integration + fine-tuning slow things down.