CBDT Notifies New Cost Inflation Index for FY 2026-27 to Reduce Long-Term Capital Gains Tax Liability

CBDT Notifies New Cost Inflation Index for FY 2026-27 to Reduce Long-Term Capital Gains Tax Liability​

The Central Board of Direct Taxes (CBDT) has officially notified the Cost Inflation Index (CII) for the financial year 2026-27, providing a critical update for taxpayers planning to sell long-term capital assets.

Under Notification No. 85/2026, the Income Tax Department has set the CII for the tax year 2026-27 at 384. This new index figure is scheduled to take effect on April 1, 2026.

The announcement follows a steady climb in inflation adjustments, with the CII for financial year 2025-26 standing at 376. Tax experts note that this update remains a cornerstone for calculating the purchase price of assets adjusted for inflation over time.

Understanding How the Cost Inflation Index Impacts Your Taxes​

The Cost Inflation Index is an essential tool used by the Income Tax Department to calculate the inflation-adjusted cost of specific long-term capital assets. By determining this adjusted cost, taxpayers can accurately calculate the taxable profit derived from a sale.

To find the taxable capital gain, the inflation-adjusted acquisition cost is subtracted from the eventual sale price of the asset. However, it is important to note that these indexation benefits are only applicable to specific types of assets under the Income Tax Act, 2025.

Essentially, a higher CII value inflates the purchase cost of long-term capital assets like specified property. Because a higher purchase cost reduces the calculated profit, it directly leads to a lower taxable capital gains figure and a reduced net tax liability for the investor.

Strategic Benefits for Taxpayers Selling Property Assets​

The increase in the CII for the Tax Year 2026-27 allows taxpayers to claim a higher inflation-adjusted acquisition cost where indexation remains available. This mechanism is designed to protect investors from the eroding effects of inflation on their investment capital.

For example, if an individual purchased a property 20 years ago for ₹20 lakh and sells it this year, the indexed cost will be marginally higher because the CII of 384 (for Tax Year 2026-27) is higher than the 376 recorded in FY 2025-26. This adjustment ensures that the taxable gain remains reflective of actual purchasing power.

The historical data shows a consistent upward trajectory in the index since the beginning of the millennium. The CII was at 100 during the 2001-02 financial year and has risen steadily to reach the current levels reported by the department.

Important Limitations Following Finance Act 2024 Changes​

While the issuance of the new index remains relevant, its significance has evolved following the removal of certain indexation advantages under the Finance Act, 2024. However, there are still significant protections for specific legacy assets.

The Indexation benefit continues to be useful for property or buildings purchased before July 23, 2024. According to the Income Tax website, while taxable capital gains are generally taxed at 12.5% without indexation, a specific exception exists for resident individuals and HUFs.

These entities can opt for a 20% tax rate with indexation specifically for land, buildings, or both, provided they were acquired before July 23, 2024, and transferred on or after that date. This provides a vital cushion for taxpayers holding older real estate investments who wish to utilize the newly notified CII levels.