Capital Gains Tax in 2026: When to Choose 20% With Indexation vs 12.5% Without

The Union Budget introduced a significant change to capital gains taxation that affects every investor in India. For certain asset classes, you now have a choice: pay 20% tax with the benefit of indexation, or pay 12.5% tax without indexation. The right choice depends on your holding period, the inflation rate during your holding period, and the actual returns.

Let’s break it down with real numbers.

The Old vs New Capital Gains Rules

Before the Change

• Listed equity (held >1 year): 10% LTCG above ₹1 lakh (no indexation)
• Debt funds (held >3 years): 20% LTCG with indexation
• Property (held >2 years): 20% LTCG with indexation
• Gold (held >3 years): 20% LTCG with indexation
• Unlisted shares (held >2 years): 20% LTCG with indexation

New Rules (FY 2026-27)

• Listed equity (held >1 year): 12.5% LTCG above ₹1.25 lakh (no indexation)
• Debt funds (held >2 years): 12.5% without indexation
• Property (held >2 years): Choice: 20% with indexation OR 12.5% without
• Gold (held >2 years): 12.5% without indexation
• Unlisted shares (held >2 years): 12.5% without indexation

The choice between 20% with indexation and 12.5% without is available for specific assets — primarily real estate purchased before July 23, 2024.

What Is Indexation?

Indexation adjusts your purchase price for inflation using the Cost Inflation Index (CII) published by the government. This reduces your taxable gain.

Formula: Indexed Cost = Original Cost × (CII of sale year ÷ CII of purchase year)

Example: You bought a property for ₹50 lakh in 2016 (CII = 264) and sold it in 2026 (CII = 363).

Indexed Cost = ₹50 lakh × (363 ÷ 264) = ₹68.75 lakh

If you sold for ₹1 crore:

• Without indexation: Gain = ₹1 Cr - ₹50L = ₹50L. Tax at 12.5% = ₹6.25L
• With indexation: Gain = ₹1 Cr - ₹68.75L = ₹31.25L. Tax at 20% = ₹6.25L

In this specific example, both options result in the same tax. But the outcome changes dramatically based on holding period and actual returns.

When 20% With Indexation Wins

Indexation benefits you most when:

• Holding period is very long (10+ years): More years of CII adjustment
• Inflation was high during the holding period: Higher CII growth
• Actual returns were moderate: The inflation adjustment eats into a larger portion of the gain

Example: Property Held 15 Years

Bought in 2011 for ₹30 lakh. CII 2011 = 184, CII 2026 = 363.

Indexed Cost = ₹30L × (363 ÷ 184) = ₹59.18L

If sold for ₹90 lakh:

• Without indexation: Gain = ₹60L. Tax at 12.5% = ₹7.50L
• With indexation: Gain = ₹30.82L. Tax at 20% = ₹6.16L

Winner: 20% with indexation — saves ₹1.34 lakh in tax.

When 12.5% Without Indexation Wins

The flat 12.5% rate benefits you when:

• Holding period is short (2-5 years): Less time for CII to compound
• Actual returns were very high: The gain is large relative to the indexed cost adjustment
• Inflation was low during the holding period

Example: Property Held 3 Years

Bought in 2023 for ₹80 lakh. CII 2023 = 348, CII 2026 = 363.

Indexed Cost = ₹80L × (363 ÷ 348) = ₹83.45L

If sold for ₹1.2 crore:

• Without indexation: Gain = ₹40L. Tax at 12.5% = ₹5.00L
• With indexation: Gain = ₹36.55L. Tax at 20% = ₹7.31L

Winner: 12.5% without indexation — saves ₹2.31 lakh in tax.

The Breakeven Point

The general rule: if your annualised return exceeds the CII growth rate by a significant margin, the 12.5% option is better. If returns are close to or only slightly above the CII growth rate, the 20% with indexation option is better.

The CII has grown at roughly 4-5% annually over the past decade. So:

Asset Return (Annual)	Holding 3Y	Holding 5Y	Holding 10Y	Holding 15Y
6-8%	12.5% wins	Roughly equal	20%+index wins	20%+index wins
10-12%	12.5% wins	12.5% wins	Roughly equal	20%+index wins
15%+	12.5% wins	12.5% wins	12.5% wins	Roughly equal

Impact on Specific Asset Classes

Real Estate

For property bought before July 2024, you can choose either option. For most property sales with 10+ year holding periods, 20% with indexation will likely save more tax — especially for properties in Tier 2/3 cities where appreciation has been moderate.

For properties bought after July 2024, only the 12.5% without indexation option is available.

Gold

Physical gold, gold ETFs, and gold mutual funds (held >2 years) are now taxed at 12.5% without indexation. SGBs held to maturity remain tax-free.

This makes SGBs even more attractive: the 2.5% annual interest is taxable at slab rates, but the capital gain on maturity is entirely tax-free.

Debt Mutual Funds

Debt fund gains (held >2 years) are at 12.5% without indexation. Previously, the 20% with indexation option made debt funds highly tax-efficient — especially for high-tax-bracket investors. The new rule reduces this advantage.

Practical impact: For investors in the 30% tax bracket, debt funds are now less attractive relative to FDs than they were before. The after-tax return difference between debt funds and FDs has narrowed.

Unlisted Shares/Pre-IPO Investments

Unlisted shares sold after 2+ years now attract 12.5% LTCG without indexation. Given the potentially high returns in pre-IPO investments, this flat rate is often more favourable than the old 20% with indexation.

Action Items for Investors

1. Calculate both options for any pending property sale: Use the formula above to determine which option saves more tax
2. Reconsider debt fund allocation: If you were using debt funds primarily for tax efficiency, reassess whether the 12.5% rate still makes them attractive relative to FDs
3. Prioritise SGBs for gold exposure: Tax-free capital gains on maturity make SGBs the most tax-efficient gold investment
4. Review unlisted share holdings: If you hold ESOP shares or pre-IPO allotments, the 12.5% rate is generally favourable for high-growth companies
5. Consult a CA for complex situations: If you have multiple properties, inherited assets, or cross-border investments, the calculation can get complex

Key Takeaway

The capital gains tax changes don’t have a one-size-fits-all answer. Your optimal choice depends on the asset class, holding period, actual returns, and the CII growth during your holding period. As a rule of thumb: choose the 12.5% flat rate for high-return, short-holding-period assets, and the 20% with indexation for moderate-return, long-holding-period assets. When in doubt, run the numbers — it takes 5 minutes and could save you lakhs in tax.

Disclaimer: Tax laws change frequently. Calculations use illustrative CII values. Consult a chartered accountant or tax advisor for your specific situation.