Capital gains exemption under sec 54

After indexation amount should taken for calculation of LTCG, Please refer Indexation sec 48 of Income tax act. Indexation is basically improvement in the value of asset over long period of retention.

then what is the logic in calculation of capital gains before indexation and also after indexation in both itr2 and itr3

For Section 54, the exemption amount equals the LTCG you compute , not the full sale consideration. So the method (with or without indexation) you choose affects both your taxable gain and the amount you need to reinvest for FULL exemption.

For property bought before July 23, 2024:

The Finance Act 2024 gave a transitional choice:

- Option A: 20% LTCG with indexation (old method)

- Option B: 12.5% LTCG without indexation (new method)

You pick whichever gives a lower tax output. The ITR-2 utility computes both.

For Section 54, the exemption works as follows:

- If you reinvest an amount equal to or greater than the LTCG under your chosen method, the ENTIRE gain is exempt.

- If you reinvest less than the full LTCG, the exemption is limited to what you reinvested.

So if Option A gives you LTCG of Rs. 20L and Option B gives Rs. 25L, choose Option A. Your full Section 54 exemption requires reinvesting Rs. 20L (not Rs. 25L).

Note: Section 54 exemption is on the CAPITAL GAIN, not the net sale price. You do not have to reinvest the entire sale price.

For the full indexation option comparison and Section 54 conditions for AY 2026-27, this [capital gains tax rates guide](https://taxgarden.in/blog/capital-gains-tax-rates-asset-class-ready-reckoner-india-ay-2026-27) has the CII table and exemption rules together.

For Section 54, the exemption amount equals the LTCG you compute , not the full sale consideration. So the method (with or without indexation) you choose affects both your taxable gain and the amount you need to reinvest for FULL exemption.

For property bought before July 23, 2024:

The Finance Act 2024 gave a transitional choice:

- Option A: 20% LTCG with indexation (old method)

- Option B: 12.5% LTCG without indexation (new method)

You pick whichever gives a lower tax output. The ITR-2 utility computes both.

For Section 54, the exemption works as follows:

- If you reinvest an amount equal to or greater than the LTCG under your chosen method, the ENTIRE gain is exempt.

- If you reinvest less than the full LTCG, the exemption is limited to what you reinvested.

So if Option A gives you LTCG of Rs. 20L and Option B gives Rs. 25L, choose Option A. Your full Section 54 exemption requires reinvesting Rs. 20L (not Rs. 25L).

Note: Section 54 exemption is on the CAPITAL GAIN, not the net sale price. You do not have to reinvest the entire sale price.

For the full indexation option comparison and Section 54 conditions for AY 2026-27, this [capital gains tax rates guide](https://taxgarden.in/blog/capital-gains-tax-rates-asset-class-ready-reckoner-india-ay-2026-27) has the CII table and exemption rules together.

Section 54 exemption should be claimed against the capital gain computed under the applicable tax option—not against whichever figure is higher. For a transfer on or after 23 July 2024, the tax treatment may depend on the asset’s acquisition date and the applicable grandfathering rule; for an eligible transfer, compare the tax payable under the available indexed and non-indexed computations and claim the exemption in the computation relevant to the option chosen. The exemption is based on the qualifying investment in the new residential house, subject to Section 54’s conditions and limits.

For the return workflow, reconcile the property’s sale and cost details with the Section 54 investment before finalising the capital-gain computation. Manual tracking of these figures and conditions is difficult; automation reduces repetitive work while professional judgment remains in control. Our platform uses 2,000+ AI agents and 650+ integrations across relevant tax and accounting workflows. For a walkthrough tailored to your practice, connect with us on WhatsApp at https://wa.me/message/3HVOZ7HIY4ESC1.

The utility shows both figures because of the grandfathering proviso to Sec 112(1)(a); for a resident individual/HUF selling property acquired before 23.07.2024, investing the indexed gain under Sec 54 is enough to bring the tax to nil.

1. Correction to the first reply: for transfers on or after 23.07.2024, Sec 48 no longer allows indexation. The indexed computation survives only for comparing tax under the proviso to Sec 112(1)(a).

2. Why both computations appear:
- New method: (sale price - unindexed cost) less Sec 54 exemption, taxed at 12.5%.
- Old method: (sale price - indexed cost) less Sec 54 exemption, taxed at 20%.
- The tax payable is the lower of the two; the excess is ignored.

3. Which figure to invest:
- If you invest an amount equal to the indexed gain, the old-method tax becomes nil, so total tax is nil even though some unindexed gain remains.
- If you invest the full unindexed gain, both methods give nil.
- Enter the actual amount invested/deposited in Schedule CG (Sec 54 deduction), and let the utility compute both.

4. Who gets the option: only resident individuals and HUFs, and only for land/building (or both) acquired before 23.07.2024. NRIs and other assets do not get the comparison.

5. Caution: there is no specific CBDT clarification on the Sec 54 interaction; the above is the plain reading of the proviso and the way the utility computes it.

6. Usual Sec 54 conditions: purchase within 1 year before/2 years after, or construct within 3 years; uninvested amount in CGAS before the Sec 139(1) due date; investment capped at Rs 10 crore; no sale of the new house within 3 years.

Overall Summary: Let the utility compute both; investing at least the indexed gain gives nil tax for eligible pre-23.07.2024 property, and investing the unindexed gain is the safest course.