Facts:
The Cost Inflation Index for FY 2025–26 was notified at 376 by the CBDT on 28 June 2025 and it shall be applicable from Assessment Year 2026–27 onwards.
Where is it used?:
This index is used for computing Indexed cost of acquisition ie adjusting the purchase cost of asset to reflect the inflation effect. It is exclusively an Income Tax concept created under Section 48 of Income tax Act to provide indexation benefit when calculating LTCG.
Key Details for FY 2025–26
Notified Value: 376
Notification Date: 28 June 2025 (Notification No. 47/2025)
Effective From: 1 April 2026
Applicable For: AY 2026–27 ( to calculate LTCG on transfers of long term capital assets during Financial year 2025–26)
What is the current base year?
The current base year for the Cost Inflation Index (CII) in India is FY 2001–02. Meaning, the index value for FY 2001–02 and all prior years is fixed at 100.
While subsequent years’ values are notified annually by the CBDT and the capital gains on sale transaction effected during each of those subsequent years are calculated with reference to this base year.