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HomeGuidesIndexation Guide
FY 2025-26 · AY 2026-27
Updated September 2026

Indexation: Meaning, Benefits, Calculation and MoreComprehensive Guide for FY 2025-26

Learn how indexation can help reduce your taxable capital gains by adjusting for inflation. Understand its applicability, calculation, and benefits for FY 2025-26.

Table of Contents
1

Meaning of Indexation


2

Applicability of Indexation Benefit


3

Capital Gains Calculation using Indexation


4

Benefits of Indexation


5

FAQs on Indexation

Meaning of Indexation

  1. Definition of Indexation

    Indexation is a financial technique used to adjust the purchase cost of an asset for inflation, thereby reducing taxable capital gains.

    • Indexation uses the Cost Inflation Index (CII) published annually by the Central Government.

    • It helps in adjusting the historical cost of an asset to reflect current price levels.

    • The indexed cost is typically higher than the original purchase cost, reducing taxable gains.

  2. Purpose of Indexation

    The primary purpose of indexation is to mitigate the impact of inflation on capital gains.

    • Inflation erodes purchasing power over time, affecting asset values.

    • Indexation ensures that the capital gains reflect true economic gains.

    • It is particularly beneficial for long-term investments.

Applicability of Indexation Benefit

  1. Eligible Assets

    Indexation benefits apply to certain long-term capital assets.

    • Applicable to immovable properties like land and buildings.

    • Available for assets held for more than 24 months.

    • Not applicable to listed equity shares and equity-oriented funds.

  2. Conditions for Claiming

    Specific conditions must be met to claim indexation benefits.

    • Available only to resident individuals and Hindu Undivided Families (HUFs).

    • Not available for debt funds purchased on or after April 1, 2023.

    • Sales after July 23, 2024, must involve long-term immovable property.

Capital Gains Calculation using Indexation

  1. Calculation Formula

    The indexed cost of acquisition is calculated using the CII.

    • Formula: Indexed Cost = Purchase Cost * (CII of Sale Year / CII of Purchase Year).

    • Reduces the taxable capital gain by increasing the cost base.

    • Example: Purchase in 2019 for ₹10 lakhs, sale in 2025 for ₹25 lakhs.

  2. Worked Example

    Illustration of indexation benefit calculation.

    • Purchase cost: ₹10 lakhs, CII 2019-20: 289, CII 2025-26: 376.

    • Indexed Cost = ₹10 lakhs * (376/289) = ₹13,01,038.

    • Taxable gain reduced from ₹15 lakhs to ₹11,98,962.

Choosing indexation can significantly lower your tax liability by reducing the taxable capital gains.

Benefits of Indexation

  1. Tax Reduction

    Indexation helps in reducing the tax burden on capital gains.

    • Higher indexed cost leads to lower taxable gains.

    • Effective tax rate can decrease from 20% to as low as 6-7%.

    • Beneficial for long-term investors seeking tax efficiency.

  2. Enhanced Returns

    Post-tax returns are improved with indexation.

    • Retains more of the investment's real value.

    • Ensures that inflation does not erode investment gains.

    • Particularly advantageous in high-inflation periods.

FAQs on Indexation

What is the Cost Inflation Index (CII) for FY 2025-26?

The Cost Inflation Index (CII) for FY 2025-26 is 376, as notified by the Central Government.


Can indexation be applied to equity shares?

No, indexation benefits are not applicable to listed equity shares or equity-oriented mutual funds.


How does indexation affect long-term capital gains tax?

Indexation increases the cost base of an asset, reducing taxable capital gains and thus lowering the long-term capital gains tax liability.


Is indexation available for non-resident individuals?

Indexation benefits are generally available only to resident individuals and HUFs, not to non-residents.


What is the tax rate on long-term capital gains with indexation?

The long-term capital gains tax rate with indexation is 20% on the reduced taxable gain.


Can indexation be used for assets held less than 24 months?

No, indexation benefits apply only to long-term capital assets held for more than 24 months.


How does indexation benefit debt fund investors?

For debt funds purchased before April 1, 2023, indexation can reduce taxable gains, but for purchases after this date, gains are considered short-term.


What is the impact of indexation on property sales?

Indexation significantly reduces taxable gains on property sales, lowering the tax liability for long-term property investors.


How is the indexed cost of acquisition calculated?

The indexed cost is calculated by multiplying the purchase cost by the ratio of the CII of the sale year to the CII of the purchase year.


Are there any forms required to claim indexation benefits?

No specific forms are required, but the indexed cost must be reported in the appropriate ITR form, such as ITR-2, when filing taxes.

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