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IndexCalc Pro – Inflation Indexation Lookup Service + Annual Tax Kit

A specialized tax preparation service that handles inflation indexation calculations for Indian equity investors. Investors submit their stock purchase records (date, quantity, price); IndexCalc Pro retrieves official cost inflation indices from the Indian government, applies the correct indexation formula, and delivers a pre-filled Excel or PDF schedule ready for their CA or tax filing. Annual subscription includes updated indices each fiscal year and email support for edge cases.

SERVICE

24 weeks • 70% confidence

Value Proposition

Eliminates manual index hunting and formula errors by centralizing official inflation data and automating the calculation. Investors get audit-ready schedules in 48 hours instead of days of research. CAs reduce billable time spent on mechanical calculations and can focus on tax strategy. No software licensing headaches—pure outsourced labor.

Target Audience

Individual equity investors (HNIs and retail) with 5+ stock holdings; independent CAs and tax practitioners who bill clients for LTCG calculations

Key Features

  • Batch upload of stock transaction history (CSV or email)
  • Automatic retrieval of correct cost inflation index for each financial year of holding
  • Pre-filled LTCG calculation sheet with indexation applied per Schedule 112A rules
  • And more, with full implementation detail...

Tech Stack

Google Sheets / Airtable for initial data management Zapier for form-to-email automation React + Node.js for web app (later phase) Stripe for subscription billing
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Original Problem

Indian investors struggle to accurately calculate long-term capital gains tax due to complex inflation indexing rules

Indian equity investors holding stocks for over 2 years must apply inflation indexing to their cost of acquisition for LTCG tax calculations, but the process is confusing, error-prone, and requires manual tracking of inflation indices across multiple years. Accountants and individual investors waste hours researching correct indexation factors, and mistakes lead to either overpaying taxes or facing penalties from tax authorities.

Score: 45.8% • 1 demand signal

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