Section 54EC capital gains bonds: 6-month window, Rs 50 lakh annual cap, and 5-year lock-in

If you sold a flat in Mumbai or a plot in Pune this financial year and the long-term capital gain (LTCG) runs into tens of lakhs, Section 54EC of the Income Tax Act 1961 is the only post-sale lever that lets you shelter that gain without buying another house. The trade-off is unforgiving: park up to Rs 50 lakh in specified bonds issued by NHAI, REC, PFC or IRFC within 6 months of transfer, accept a 5-year lock-in, and live with a coupon of around 5.25 per cent that is fully taxable as Other Sources income. Get the sequencing wrong and the Assessing Officer slots the gain back into your return for the year of breach.

The provision has tightened over the last decade. The Finance Act 2014 closed the two-year split-investment loophole by capping aggregate exposure at Rs 50 lakh across the year of transfer and the immediately succeeding year. The Finance Act 2018 narrowed the qualifying asset universe from any long-term capital asset to only land or building (or both), and lengthened the lock-in from 3 years to 5 years for bonds redeemed on or after 1 April 2018. As of FY 2025-26, those are still the operative rules.

What the Section Says

Section 54EC(1) reads, in plain English: where capital gain arises from the transfer of a long-term capital asset, being land or building or both, and the assessee invests the whole or any part of the capital gain in long-term specified assets within 6 months from the date of such transfer, the capital gain to that extent shall not be charged under Section 45. The first proviso caps the investment, during the financial year in which the original asset is transferred and the subsequent financial year, at Rs 50 lakh. The third proviso (inserted by Finance Act 2018, effective FY 2018-19) sets the lock-in at 5 years from the date of acquisition. The statute is hosted at incometaxindia.gov.in.

Five operating constraints flow from this:

"Long-term capital asset" pulls in Section 2(29A); for land and building, that means held for more than 24 months (reduced from 36 months by Finance Act 2017, effective FY 2017-18). A flat bought in March 2023 and sold in May 2026 qualifies; one bought in October 2024 and sold today does not.

The headline tax saving depends on which LTCG rate applies. Under Budget 2024 (effective 23 July 2024), land or building acquired on or after that date attracts LTCG at 12.5 per cent without indexation. Properties acquired before that date enjoy a grandfathered choice between 12.5 per cent without indexation and 20 per cent with indexation. Section 54EC sits on top: whichever rate applies, the gain you shelter via 54EC is removed from taxable income altogether.

Worked Example

Take Priya, a Bengaluru-based architect, who sold her father's inherited plot in Hebbal in April 2026 for Rs 1.85 crore. The plot was acquired by her father in 2008 for Rs 12 lakh and inherited by Priya in February 2020. Cost of acquisition is the father's cost (Section 49(1)). Using the indexation route open to her because the asset was acquired before 23 July 2024:

Without 54EC, Priya's tax bill on this leg would have been Rs 31,24,486. The Rs 50 lakh bond investment saves her Rs 10,39,999 in tax in AY 2027-28. The catch: that Rs 50 lakh is locked till April 2031, the coupon (currently around 5.25 per cent annually on REC and NHAI 54EC bonds, per issuer information memoranda) is taxable each year at her slab rate, and the bonds cannot be pledged or transferred until maturity.

If Priya had wanted to shelter the full Rs 1.50 crore gain, Section 54EC alone cannot deliver because the Rs 50 lakh cap is hard. She would have to combine 54EC with Section 54F (reinvest in a new residential house) or Section 54 (if the original asset had been a house, which it was not here). The Oquilia capital gains calculator lets you model these combinations side by side.

A second nuance: Priya cannot split Rs 30 lakh into FY 2026-27 and another Rs 30 lakh into FY 2027-28 to bypass the cap. The first proviso to 54EC(1) explicitly aggregates across both years. Pre-2014, this was a popular splitting strategy; the Finance Act 2014 shut it down with effect from AY 2015-16.

Common Mistakes

ITR scrutiny notices on Section 54EC cluster around six recurring errors. Each results in the exemption being withdrawn and the gain being added back under Section 45, often with interest under Sections 234B and 234C.

Mistake 1, missing the 6-month window. The 6 months runs from the date of registration of the conveyance deed, not the date of agreement to sell or possession. Bond allotment date, not the date of cheque issue, is what counts. Many sellers apply on day 178 only to find the bonds allotted on day 184, and the AO disallows the entire exemption.

Mistake 2, investing more than Rs 50 lakh. Some sellers split investments across two financial years assuming each year carries its own cap. The proviso aggregates across the FY of transfer and the subsequent FY. A taxpayer who buys Rs 50 lakh in March 2026 and another Rs 50 lakh in April 2026 gets exemption on only Rs 50 lakh total.

Mistake 3, sheltering equity LTCG via 54EC. Post Finance Act 2018, the section applies only to land or building. LTCG on listed equity shares or equity mutual funds is governed by Section 112A (12.5 per cent above Rs 1.25 lakh per year) and there is no 54EC route. Sellers of unlisted shares, gold ETFs, debt mutual funds or business assets also cannot use 54EC after AY 2019-20.

Mistake 4, pledging the bonds for a loan. Section 54EC(3) treats any loan or advance taken on the security of the bonds as a deemed transfer. The full exempt gain reverts to taxable income in the year of pledging. The Income Tax Department e-filing portal flags such deemed transfers via PAN-linked bond registry data.

Mistake 5, filing before investing. If the transfer happens in February 2026 and your ITR-2 is due 31 July 2026 but bonds are allotted only in August 2026 (still within 6 months), Section 54EC does not require parking money in the Capital Gains Account Scheme, unlike Sections 54 and 54F. You can claim the exemption as long as the investment is made before filing. If you file before investing, the AO will deny relief.

Mistake 6, claiming bond interest is exempt. The roughly 5.25 per cent annual coupon on NHAI, REC, PFC and IRFC 54EC bonds is taxable under Income from Other Sources at the slab rate. Form 26AS shows TDS at 10 per cent under Section 193 (no TDS up to Rs 10,000 per FY per bondholder). Many seniors mistake it for tax-free interest similar to old 7.75 per cent RBI bonds, and the AO catches the omission via 26AS reconciliation.

For the home-loan interest interplay with property tax planning, see our explainer on the Section 24(b) home loan interest deduction. To fix a mis-claimed 54EC entry post-return, see the rectification guide on Section 154. Before signing the sale deed, run the projection through the Oquilia old-vs-new regime calculator to confirm the slab and surcharge bracket.

FAQ

Can I invest in 54EC bonds before the sale deed is registered?

No. The 6-month window opens only on the date of transfer. Under Section 2(47), for immovable property this is the date of registration of the conveyance deed (or possession-handover under Section 53A of the Transfer of Property Act). Bonds purchased earlier do not qualify, even if you can prove intent to sell.

Are 54EC bonds available under the new tax regime?

Yes. Section 54EC is a capital gains exemption, not a Chapter VI-A deduction. Capital gains exemptions (Sections 54, 54B, 54D, 54EC, 54F, 54G, 54GA, 54GB) are preserved under the new regime created by Section 115BAC. A taxpayer who opted into the new regime for FY 2025-26 can still claim 54EC for LTCG on land or building. The Rs 60,000 rebate under Section 87A (new regime) and the Rs 50 lakh 54EC cap operate independently.

What happens if I die during the 5-year lock-in?

The bonds transfer to the legal heir by transmission, not by sale, and the exemption is not withdrawn. The heir simply holds the bonds till maturity. Premature redemption by the heir for liquidity would trigger the same Section 54EC(3) deemed transfer rule in the original assessee's hands.

Can I buy NHAI 54EC bonds online?

Yes. Since FY 2017-18, all four issuers (NHAI, REC, PFC and IRFC) accept online applications through their direct portals and through registered intermediaries. Demat holding has been mandatory since 1 November 2018. Allotment happens on the last day of the month in which the application and cleared funds are received.

Is there a way to shelter more than Rs 50 lakh of LTCG on property?

Yes, by combining sections. If the original asset is a residential house and you buy another residential house, Section 54 has no upper cap subject to the Rs 10 crore ceiling introduced by Finance Act 2023 under Section 54(1) proviso. If the original asset is any long-term capital asset other than a residential house and you buy a residential house, Section 54F applies, also with the Rs 10 crore ceiling. Section 54EC can stack on top, but the same Rs 50 lakh of gain cannot be claimed under both 54 and 54EC simultaneously. The income tax calculator is useful to model the stacked exemption.

Does the Rs 50 lakh cap reset every year?

No. The proviso aggregates investment across the FY of transfer and the immediately succeeding FY. If you sold a plot in November 2025 (FY 2025-26), your aggregate 54EC ceiling across FY 2025-26 and FY 2026-27 is Rs 50 lakh, not Rs 50 lakh plus Rs 50 lakh. The cap does reset if you sell a different property in FY 2027-28; triggering a fresh Rs 50 lakh cap over FY 2027-28 and FY 2028-29.

What is the difference between 54EC and 54F?

Section 54F lets you exempt LTCG on any long-term capital asset other than a residential house by buying or constructing a residential house in India, subject to the Rs 10 crore cap and certain holding conditions. Section 54EC restricts the exemption to LTCG on land or building (after Finance Act 2018); the reinvestment is in bonds and the limit is Rs 50 lakh. 54F demands you not own more than one other residential house; 54EC has no such restriction.