Published Feb 27, 2025 4 Min Read

Capital gains indexation is a crucial concept in the Indian taxation system, designed to adjust the purchase price of assets to account for inflation. This adjustment ensures that taxpayers are taxed only on the real gains from their investments, not the inflated value due to rising prices over time. By applying indexation, the tax burden on long-term capital assets is significantly reduced, promoting fair taxation and encouraging long-term investments.

Capital gain index calculation

To calculate the indexed cost of acquisition, the Cost Inflation Index (CII) is employed. The CII is a measure of inflation issued annually by the Indian government, reflecting the increase in the cost of goods and services. The formula to determine the indexed cost is:

Indexed Cost of Acquisition= (CII of the Year of Purchase/ CII of the Year of Sale) ×Original Purchase Price

For instance, if an individual purchased a property in the financial year 2004-05 for Rs. 30 lakh and sold it in 2018-19 for Rs. 85 lakh, the indexed cost of acquisition would be calculated as follows:

Indexed Cost = (113/280) ×30,00,000 = Rs.74,33,628

Here, 280 is the CII for 2018-19, and 113 is the CII for 2004-05. Thus, the long-term capital gain would be Rs. 85,00,000 - Rs. 74,33,628 = Rs. 10,66,372.

Concept of cost inflation index and capital gain

The Cost Inflation Index (CII) is a tool used to adjust the purchase price of assets for inflation, ensuring that the capital gains tax is levied only on the real gain and not the inflationary increase in value. The government notifies the CII for each financial year.

Indexation and Debt Funds

Indexation is particularly beneficial for debt fund investors. When debt mutual funds are held for more than three years, the gains qualify as long-term capital gains and are taxed at 20% after indexation. This means investors can adjust the purchase price of their investments for inflation using the CII, thereby reducing the taxable gains.

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Benefits of indexation

  1. Tax efficiency: By adjusting the purchase price for inflation, indexation reduces the taxable capital gains, leading to significant tax savings.
  2. Encourages long-term investment: Indexation benefits are available only for long-term holdings, promoting a culture of long-term investment among taxpayers.
  3. Inflation Adjustment: It ensures that taxpayers are taxed only on real gains, not on the portion of gains attributable to inflation.

Conclusion

Capital gains indexation is a crucial aspect of tax planning in India, allowing investors to mitigate the impact of inflation on their investments. By understanding and effectively utilising indexation, taxpayers can optimise their tax liabilities and enhance their post-tax returns.

Frequently asked questions

What is the Cost Inflation Index (CII)?

The Cost Inflation Index (CII) is a measure used by the Indian government to account for inflation in the calculation of long-term capital gains. It allows taxpayers to adjust the purchase price of assets for inflation, thereby reducing taxable gains.

How is indexation beneficial for debt fund investors?

For debt fund investors holding investments for more than three years, indexation allows the adjustment of the purchase price for inflation, reducing taxable capital gains and resulting in lower tax liability.

Are all assets eligible for indexation benefits?

No, indexation benefits are typically available for long-term capital assets, which include assets held for more than 36 months. However, certain assets like equity shares and equity-oriented mutual funds have different holding period criteria and may not be eligible for indexation benefits.

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