Managing Capital Gains Losses: Set Off Rules

Every investor eventually sells something at a loss. A stock that didn’t perform, a mutual fund redeemed in a bad quarter, or property sold below its purchase price. The Income Tax Act doesn’t ignore these setbacks. It allows you to adjust, or “set off,” capital losses against capital gains, reducing the tax you owe. But this relief comes with specific conditions, and getting them wrong can mean losing a legitimate tax benefit. Here’s how the set-off and carry-forward rules for capital losses actually work.

What counts as a capital loss 🔗

A capital loss arises when you sell a capital asset, shares, mutual funds, property, gold, or similar assets, for less than its cost of acquisition. Like capital gains, these losses are classified as either short-term or long-term, depending on how long you held the asset before selling it. Listed securities held for more than 12 months, for instance, are treated as long-term, while most other assets need to be held for over 24 or 36 months to qualify.

This classification matters enormously because the set-off rules treat short-term and long-term losses very differently. A loss doesn’t just reduce your taxable gains automatically; it has to be matched against the right type of gain, under the right head of income, within the right timeframe.

The core rule: losses stay within the capital gains head 🔗

The starting point, laid out under Section 74 of the Income Tax Act, is that a loss computed under the head “Capital gains” can only be set off against income under that same head. This is stricter than the rules for some other types of losses. You cannot use a capital loss to reduce your salary income, business profits, or interest earned from a fixed deposit. The adjustment has to happen entirely within capital gains, short-term or long-term.

Within that boundary, though, the law draws a further distinction based on the nature of the loss itself.

Short-term capital loss: the flexible one 🔗

A short-term capital loss (STCL) is the more accommodating of the two. It can be set off against both short-term capital gains and long-term capital gains in the same year. So if you booked a loss on shares sold within 12 months, you can use that loss to offset a profit from selling a property you’d held for three years, or from another short-term trade. There’s no restriction on which type of gain it reduces.

Long-term capital loss: the restricted one 🔗

A long-term capital loss (LTCL) works the opposite way. It can only be adjusted against long-term capital gains. If you sold a piece of land at a long-term loss, that loss cannot reduce a short-term profit you made on the stock market the same year. It has to wait for a matching long-term gain, this year or a future one, before it can be used.

Carrying forward what’s left unabsorbed 🔗

Not every loss finds a matching gain in the same year. If you have more capital loss than capital gain, the unabsorbed portion doesn’t simply disappear. It gets carried forward to future assessment years, where it can be set off against future capital gains, subject to the same STCL and LTCL rules described above.

According to Section 74, this carry-forward is allowed for a maximum of eight assessment years immediately following the year in which the loss was first computed. After that window closes, any portion still unused lapses permanently. This is a firm cutoff, so tracking your carried-forward losses year on year matters if you want to make full use of them.

The filing condition that trips people up 🔗

Carrying forward a capital loss isn’t automatic just because you incurred one. The Income Tax Department’s guidance is clear that the loss return must be filed within the due date specified for filing returns to claim the carry-forward benefit. Miss that deadline, even by filing a late return, and you generally forfeit the right to carry the loss forward, even though the loss itself was real. This is one of the more punishing procedural rules in the Act, and it applies regardless of how well the transaction is documented.

It’s also worth remembering that once a loss is classified as short-term or long-term, that classification travels with it into future years. A carried-forward LTCL remains restricted to long-term gains even three or five years later; it never becomes eligible to offset short-term gains.

A worked example 🔗

Consider a taxpayer, Rohit, who in one financial year books a short-term capital loss of ₹60,000 from intraday and short-holding stock trades. In the same year, he earns a long-term capital gain of ₹2,00,000 from selling a flat he’d held for four years, and a long-term capital loss of ₹40,000 from selling unlisted shares he’d held for over two years.

Here’s how the adjustment plays out. His STCL of ₹60,000 can be set off against the LTCG of ₹2,00,000, since short-term losses can reduce long-term gains. His LTCL of ₹40,000 can also be set off against the same LTCG, since both are long-term in nature. After both adjustments, his taxable long-term capital gain drops from ₹2,00,000 to ₹1,00,000. Had he instead had a long-term loss and a short-term gain, the long-term loss would have had nowhere to go in that year, and would have needed to be carried forward.

Where the ₹1.25 lakh exemption fits in 🔗

For long-term capital gains on listed equity shares and equity-oriented mutual funds under Section 112A, there’s a separate exemption to keep in mind. The Union Budget 2024 raised this exemption threshold from ₹1 lakh to ₹1.25 lakh, applicable from FY 2024-25 onward, alongside a revised LTCG tax rate of 12.5% without indexation. The same Budget also raised short-term capital gains tax on listed equity to 20%.

This exemption applies to gains, not losses, but it’s relevant context for anyone studying set-off rules alongside capital gains taxation, since the two provisions interact when computing your final tax liability on equity investments.

What changes under the Income Tax Act, 2025 🔗

Students working through this topic should also know that the Income Tax Act, 1961, has been replaced by the Income Tax Act, 2025, effective from Tax Year 2026-27 onward. The CBDT has clarified that the underlying architecture of set-off and carry-forward hasn’t changed: losses are still adjusted within the same head first, then across permitted heads, and the carry-forward duration for capital losses remains eight years. What has changed is the numbering and structuring of provisions, along with the terminology, “previous year” and “assessment year” give way to a single “tax year.” Losses computed and carried forward under the old Act continue to retain their original character and are set off going forward exactly as the 1961 Act prescribed. For a B.Com student, this means the logic taught under Section 74 still holds; only the section reference around it has shifted.

Why this matters for portfolio management 🔗

These rules exist to prevent double taxation of the same economic loss while stopping taxpayers from artificially reducing unrelated income using investment losses. For someone actively managing a portfolio across equity, property, and other assets, understanding this framework has practical value. It affects when you might choose to book a loss, how you sequence sales of winning and losing positions within a financial year, and why timely tax filing isn’t just a compliance formality but a condition for preserving a real financial benefit. A loss that goes unclaimed because of a missed deadline is, in effect, a benefit given up voluntarily.

What do you think? If you had a large short-term loss and a large long-term gain in the same year, would you time your equity sales differently to make full use of the set-off rules? And how much of a role should the eight-year carry-forward window play in deciding when to book a loss versus holding on?

References

1. https://www.incometaxindia.gov.in/w/section-74-40
2. https://www.incometax.gov.in/iec/foportal/help/all-topics/e-filing-services/set-offcarry-forward-losses
3. https://www.pib.gov.in/PressReleasePage.aspx?PRID=2036604&reg=48&lang=2
4. https://www.business-standard.com/amp/markets/news/budget-2024-hikes-ltcg-tax-rate-to-12-5-stcg-to-20-stt-on-f-o-also-up-124072300553_1.html
5. https://upstox.com/news/personal-finance/tax/carry-forward-of-losses-under-the-new-income-tax-act-2025-what-investors-and-taxpayers-should-know/article-191651/