Almost every property seller who calls us says some version of the same sentence: "I'll put the gain into NHAI bonds and the tax goes away." Two things are wrong with that sentence. NHAI stopped issuing capital gains bonds years ago, so the instrument the caller has in mind no longer exists. And the relief itself is capped, time-bound, and structured in a way that quietly disqualifies a large share of the people who assume they qualify. The Rs.50 lakh ceiling is the part everyone knows. The six-month window and the way that ceiling straddles two tax years are the parts that cost people money.

Here is what the provision actually does.

What the law actually says

The relief lives in Section 54EC of the Income-tax Act, 1961, carried forward into the Income Tax Act, 2025 without a change in its economic substance — same ceiling, same lock-in, same class of eligible issuers. What did change under ITA 2025 is the vocabulary. The Act now speaks of a Tax Year rather than the old Previous Year / Assessment Year pairing, and every deadline below is expressed accordingly. When you read a pre-2025 article that says "invest before the end of the previous year," translate it to Tax Year before you act on it.

Four structural rules govern the section:

1. Only long-term capital gains from land or building qualify. This is narrower than most people assume. Since the 2018 amendment, Section 54EC applies to long-term capital gain arising from the transfer of land, building, or both. Gains from listed shares, mutual funds, gold, unlisted securities, or business assets do not qualify — no matter how long you held them. If you sold equity and expect 54EC to absorb the gain, it will not. You are looking at Section 112A and the Rs.1.25 lakh LTCG exemption instead, which is a different conversation entirely.

2. The investment ceiling is Rs.50 lakh — and it spans two tax years, not one. This is the trap. The proviso to Section 54EC caps the investment at Rs.50 lakh in the Tax Year in which the transfer took place. A second proviso then caps the combined investment across that Tax Year and the following Tax Year at Rs.50 lakh as well. Before 2018, sellers could straddle a March transfer — Rs.50 lakh in one financial year, another Rs.50 lakh in the next, Rs.1 crore of exemption. That planning route is closed. The absolute ceiling is Rs.50 lakh per transfer, full stop.

3. The window is six months from the date of transfer. Not six months from when the money reaches you. Not six months from registration if possession changed earlier. The clock runs from the date of transfer as determined under Section 2(47) of ITA 1961 (retained in substance under ITA 2025). Where a sale deed is executed and possession handed over in one month but the final tranche of consideration arrives four months later, the six months has been running the whole time.

4. The lock-in is five years. For transfers made on or after 1 April 2018, the bonds must be held for five years, up from the earlier three. If you redeem, transfer, or take a loan against the bonds before five years are up, the exemption claimed is withdrawn and taxed as long-term capital gain in the Tax Year of the breach. Pledging the bonds as loan security counts as a breach. Banks will sometimes accept them as collateral — do not let them.

Who actually issues these bonds in 2026

This is where the "NHAI bonds" reflex fails. NHAI discontinued its Section 54EC issuance and is no longer an option. The eligible issuers currently in the market are:

REC Ltd (Rural Electrification Corporation)
PFC (Power Finance Corporation)
IRFC (Indian Railways Finance Corporation)

All are AAA-rated public sector undertakings, and as of the most recent issuance cycle all are offering the same 5.25% coupon. That parity matters for your decision-making: there is no yield arbitrage between issuers. Choose on the basis of allotment speed and application convenience, not rate. Anyone pitching you one issuer over another on returns is selling something.

The coupon is fully taxable as income from other sources at your slab rate. The bonds are not tax-free. The exemption is on the capital gain, not on the interest the bonds throw off. At 5.25% pre-tax on Rs.50 lakh, that is Rs.2.62 lakh a year of taxable interest — at a 30% slab, roughly Rs.1.84 lakh post-tax, an effective 3.67%. Hold that number in mind for the next section.

Practical implications for NRIs

You can invest, but the arithmetic is different. An NRI selling Indian property can claim Section 54EC. The complication sits upstream. Under Section 195, the buyer must deduct TDS on the entire sale consideration at the applicable long-term rate plus surcharge and cess — not on the gain, and not at the 1% rate under Section 194-IA that applies when the seller is resident. On a Rs.2 crore sale, a resident seller sees Rs.2 lakh withheld. An NRI seller can see Rs.25–29 lakh withheld depending on surcharge slab.

That withholding lands before you have the cash to buy bonds. The six-month clock does not pause for it. This is precisely why NRI sellers should file for a lower deduction certificate under Section 197 before the transaction closes, not after. Applied for early, the certificate directs the buyer to withhold on the actual computed gain rather than gross consideration, which frees the liquidity you need to fund the 54EC investment inside the window.

Currency and repatriation. Bond proceeds on maturity, plus interest, are credited in rupees. If your original acquisition was through NRE or FCNR funds, plan the repatriation route before you lock money away for five years. The $1 million per financial year NRO-to-NRE limit applies on the way out, and five years of rupee depreciation against a hard currency can easily erase a 3.67% post-tax return in dollar terms. Run the comparison honestly: a 3.67% effective rupee yield locked for five years is not automatically better than paying the tax and deploying the net proceeds elsewhere.

The Rs.50 lakh cap bites harder on NRI property sales. Ancestral property in a metro that has appreciated across two decades routinely produces gains well above Rs.50 lakh. Section 54EC will shelter Rs.50 lakh of it. The balance is taxable unless you also qualify under Section 54 (reinvestment in a residential house). The two sections can be claimed together on the same transaction where the conditions of each are independently satisfied — that combination is the single most useful planning move available and it is the one most often missed.

Step-by-step: what to do

Fix the date of transfer in writing. Pull the sale deed and identify the exact date. Mark the date six months out. That is your hard deadline, and it does not move.
Compute the gain before you decide the quantum. Indexed cost of acquisition, indexed cost of improvement, transfer expenses. If the gain is below Rs.50 lakh, invest only the gain amount — investing more does not increase the exemption and needlessly locks capital at 3.67% post-tax.
If you are an NRI, file the Section 197 application now. Before closing, not after. Without it, TDS on gross consideration will strand the liquidity you need.
Check whether Section 54 also applies. If any part of the gain will flow into a residential house purchase or construction, map both exemptions on the same computation sheet before committing money to bonds.
Apply to REC, PFC, or IRFC directly through the issuer's portal or an authorised distributor. Allotment happens on specified monthly dates — submit at least three weeks before your deadline, because the relevant date for the six-month test is the date of investment, and application-to-allotment lag has cost people the exemption.
File the claim in your return. Report the exemption in Schedule CG of ITR-2 with the bond allotment details. Reconcile the sale TDS against Form 26AS (now Form 168 under ITA 2025) before you file — mismatches here are the most common trigger for a Section 143(1) adjustment on property sales.
Diarise the five-year date and do not pledge the bonds against any borrowing in the interim.

FAQ

Can I claim Section 54EC on capital gains from selling shares or mutual funds?
No. Since the 2018 amendment the section covers long-term gains from land, building, or both only. Gains on equity, mutual funds, gold, or unlisted securities are outside its scope. For listed equity you are in Section 112A territory with the Rs.1.25 lakh annual LTCG exemption.

I sold in February. Can I invest Rs.50 lakh before 31 March and another Rs.50 lakh in April?
No. That route was closed in 2018. The second proviso to Section 54EC caps the combined investment across the Tax Year of transfer and the following Tax Year at Rs.50 lakh. Your maximum exemption on that transfer is Rs.50 lakh regardless of how you split the timing.

Is the 5.25% interest on 54EC bonds tax-free?
No. The interest is taxable as income from other sources at your applicable slab rate, and it is paid annually. Only the capital gain is exempt. For an NRI at a 30% slab the effective post-tax yield is roughly 3.67%.

What happens if I need the money before five years are up?
The exemption is reversed. The amount previously exempted is brought to tax as long-term capital gain in the Tax Year in which you redeem, transfer, or take a loan against the bonds. There is no partial relief and no hardship exception. If there is any realistic chance you will need the capital inside five years, paying the tax now is the better decision.

What to do next

The decision on Section 54EC is rarely "bonds or no bonds." It is a three-way comparison between locking capital at an effective 3.67% for five years, claiming Section 54 on a residential reinvestment, and simply paying the tax and redeploying freely — and the right answer depends on your gain quantum, your residency status, your surcharge slab, and when you will next need the money.

For your specific situation, book a consultation at harunraaj.com

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"I'll just park it in NHAI bonds": What Section 54EC actually says in 2026