Capital Gains Indexation Calculator

Indexation is a powerful tax benefit allowing individuals to reduce capital gains tax by adjusting purchase price for inflation using Cost Inflation Index (CII) provided by the Income Tax Department. While calculating long-term capital gains on real estate, gold, and bonds, you can increase the cost basis using the CII ratio between purchase year and sale year, significantly reducing taxable gains. For example, a property purchased for 10 lakhs rupees in 2010 and sold for 30 lakhs rupees in 2024 shows 20 lakh rupees gain nominally, but indexation might increase cost basis to 25 lakhs rupees, reducing taxable gain to just 5 lakhs rupees (saving 100000 rupees in taxes at 20% rate). This calculator integrates CII data and automatically computes indexed cost, determining exact LTCG liability after inflation adjustment. The indexation benefit is particularly valuable for property sales and long-held gold investments, which typically appreciate substantially with time. Annual CII tables are published by the Income Tax Department, making this calculator essential for accurate LTCG reporting and ITR filing. Many property sellers miss indexation benefits or calculate them incorrectly, paying excess taxes unnecessarily.