Selling a Bengaluru flat in 2026: how Section 54 and 54F cut your capital gains tax

Imagine selling a Whitefield flat you bought in 2015 for a healthy gain in early 2026, then realising the tax bill could swallow a chunk of the upgrade you planned. The good news is that the Income Tax Act gives a long-term seller of a house a clear, legal route to defer that tax: Section 54. The catch is that the rules changed materially in July 2024, and getting the reinvestment timing wrong is an expensive mistake.

The short answer. If you sell a residential house held for more than 24 months, Section 54 lets you exempt the long-term capital gain to the extent you reinvest it in another residential house in India, within one year before or two years after the sale, or build one within three years. Long-term capital gains on property are now taxed at 12.5 percent without indexation, but a grandfathering option lets resident individuals on property acquired before July 23, 2024 pay the lower of 12.5 percent without indexation or 20 percent with indexation. The trade-off: if you cannot reinvest before your return is due, you must park the money in a Capital Gains Account Scheme deposit by the filing deadline, or you lose the exemption.

What is the long-term capital gains rate on a flat in 2026?

Budget 2024, presented on July 23, 2024, cut the long-term capital gains rate on property from 20 percent to 12.5 percent but removed indexation. Days later, on August 6, 2024, the government added a grandfathering option: for immovable property acquired before July 23, 2024 and sold on or after that date, resident individuals and Hindu Undivided Families can pay the lower of two computations, 20 percent with indexation or 12.5 percent without. As Business Standard reported, this protects long-term owners from a worse outcome. A holding period above 24 months makes the gain long term.

The grandfathering option is worth dwelling on, because it can swing the bill by lakhs on a Bengaluru flat bought a decade or more ago. Indexation lifts your purchase cost in line with the cost inflation index, which shrinks the taxable gain. So for an older property where prices have risen sharply but inflation indexing is also large, the 20 percent with indexation route can produce a smaller tax than 12.5 percent on the full nominal gain. For a more recently acquired property where indexation has had little time to build up, the flat 12.5 percent without indexation usually wins. The only way to know is to compute both, which is why this is the first calculation a seller should run rather than the last.

How does Section 54 actually exempt the gain?

Section 54 applies when you sell a long-term residential house and reinvest the capital gain in another residential house in India. You must buy the new house within one year before or two years after the date of sale, or construct it within three years of the sale. Reinvest the full gain and the whole gain is exempt; reinvest part and the exemption is proportionate. The maximum exemption is capped at Rs 10 crore, a ceiling introduced from assessment year 2024-25. The provision is summarised by the Income Tax Department.

Two timing details trip people up. First, the one year before the sale window means you can buy the replacement home shortly before you sell the old one and still claim, which suits a buyer who upgrades first and sells later. Second, the construction route gives you three years, but only from the date of the original sale, so a delayed project or a slow builder can quietly run you past the deadline. There is also a holding condition on the new house: if you sell the replacement property within three years of buying or building it, the exemption you claimed is reversed and the earlier gain becomes taxable, so Section 54 rewards genuine reinvestment, not a quick flip.

When do you use Section 54F instead?

Section 54 covers the sale of a house. Section 54F covers the sale of any other long-term capital asset, such as land, gold or shares, where you reinvest the net sale consideration into one residential house in India. The reinvestment windows mirror Section 54: one year before or two years after for a purchase, three years for construction. But the mechanics differ. Under 54F the exemption is proportionate to how much of the net sale consideration you reinvest, and to claim it you generally must not own more than one house other than the new one. The cap here is also Rs 10 crore of reinvested consideration.

The proportionate nature of 54F is the part sellers most often misjudge. Under Section 54 the exemption tracks the gain, so reinvesting the gain alone can fully shelter it. Under 54F the exemption tracks the net sale consideration, meaning you generally have to plough the whole sale proceeds, not just the profit, into the new house to exempt the entire gain. Reinvest only part of the consideration and only that proportion of the gain is exempt. For a Bengaluru seller of, say, a plot who wants to buy a flat, this can mean committing a much larger sum than expected, so model the 54F math carefully before assuming the gain is covered.

What if you have not bought the new home yet?

This is where most sellers slip. If you have not completed the reinvestment by the due date for filing your income tax return, you must deposit the unutilised gain into a Capital Gains Account Scheme account before that date to preserve the exemption. For gains in the financial year 2025-26, the deposit must be made on or before the return due date, generally July 31, 2026. The deposit keeps your reinvestment window open, two years for a purchase or three for construction. Miss it, and the exemption is lost even if you buy later.

How do the main exemption routes compare?

Are there smaller reliefs worth knowing?

Two are worth flagging. Section 54EC lets you invest up to Rs 50 lakh of long-term gains from land or building into specified NHAI or REC bonds within six months of the sale, with a lock-in, which suits sellers who do not want to buy another house. And Section 54 carries a once-in-a-lifetime option to reinvest into two houses rather than one, available where the capital gain does not exceed Rs 2 crore. Confirm these against your facts with a chartered accountant, because the conditions are specific.

It is also worth being clear about what these sections do and do not do. They defer or exempt the long-term capital gains tax; they do not touch stamp duty, registration charges or any tax on the buyer side of your next purchase. Nor do they help with short-term gains, which arise if you sell within 24 months and are taxed at your slab rate with no Section 54 shelter. And the exemptions apply to residential house property in India, so a reinvestment in commercial property or in a house abroad will not qualify. Keep the documentation tight, the sale deed, the purchase deed or construction bills, and the bank trail, because the burden of proving the reinvestment sits with you if the return is questioned. A clean paper trail also speeds any refund and reduces the chance of an avoidable notice from the tax department years later, long after the deal has closed.

Your seven-point capital gains checklist

1. Confirm the flat was held more than 24 months so the gain qualifies as long term.
2. Compute both options for pre-July 2024 property: 12.5 percent without indexation versus 20 percent with, and pick the lower.
3. Decide your route early: Section 54 for a house sale, 54F for other assets, 54EC bonds if you will not rebuy.
4. Track the reinvestment windows: one year before or two years after to buy, three years to build.
5. If you cannot reinvest in time, open a Capital Gains Account Scheme deposit before your return due date.
6. Remember the Rs 10 crore exemption ceiling and the Rs 50 lakh limit on 54EC bonds.
7. Get a chartered accountant to confirm the math and the once-in-a-lifetime two-house option before filing.

What is the LTCG tax rate on a flat sold in 2026?

Long-term capital gains on property are taxed at 12.5 percent without indexation. For property acquired before July 23, 2024 and sold afterwards, a resident individual can instead choose 20 percent with indexation if that produces a lower tax. You then pay whichever of the two computations gives the smaller liability.

How long do I have to reinvest under Section 54?

You must purchase another residential house within one year before or two years after the date of sale, or construct one within three years of the sale. If you reinvest the entire capital gain, the whole gain is exempt; if you reinvest only part, the exemption is proportionate to the amount actually reinvested.

What is the maximum Section 54 exemption?

The exemption under Section 54 is capped at Rs 10 crore, a ceiling that applies from assessment year 2024-25. Section 54F is similarly limited to Rs 10 crore of reinvested net sale consideration. For very large gains above these caps, the excess remains taxable at the applicable long-term capital gains rate.

What is the Capital Gains Account Scheme deadline?

If you have not completed the reinvestment by the due date for filing your income tax return, you must deposit the unutilised gain into a Capital Gains Account Scheme account by that date. For gains in the financial year 2025-26 that date is generally July 31, 2026. The deposit preserves your exemption while you complete the purchase or construction.

Last updated 2026-06-07. PropNewz Team.