Tax Loss Harvesting in India: The Legal Strategy to Cut Your Mutual Fund Tax Bill Every March
Most mutual fund investors spend March doing one thing: watching their portfolio. The smarter ones are also doing something to their portfolio — and saving anywhere from ₹5,000 to ₹50,000 in tax in the process.
Tax loss harvesting is the practice of deliberately selling underperforming mutual fund units before March 31 to book a capital loss — and using that loss to legally cancel out capital gains you’ve already earned during the year. It’s permitted under the Income Tax Act. It’s not a loophole. And it takes about as much time as filing your EPFO grievance online.
Here’s how it works, what the rules actually say, where investors go wrong — and how to execute it cleanly before the financial year closes.
What This Article Covers
Why March 31 Is Your Annual Tax Window
India’s financial year closes on March 31. Capital gains become taxable in the year the redemption happens — not the year you feel the gain.
If you sold a mutual fund unit in October 2025, that gain is locked into your FY 2025-26 tax bill. No going back. But if you hold a fund sitting at a loss — and you haven’t sold it yet — that loss is still available. Sell it before March 31, and you can use it to cancel that October gain.
Miss March 31, and both things reset. The new financial year begins with zero gains and zero losses recorded. Your unrealised loss from the mid-cap fund you held through a rough 2025 goes back to being a number on your screen — not a tax saving.
The financial stakes are real. At the current STCG (Short-Term Capital Gains) rate of 20% for equity funds, an investor with ₹2 lakh of short-term gains who also holds ₹1.5 lakh in unrealised losses has a choice: sell the loss-making fund before March 31 and pay zero tax on the offset — or do nothing and pay ₹40,000 in tax by July.
How Mutual Fund Capital Gains Are Taxed in FY 2025-26
Two factors determine your tax bill when you redeem a mutual fund: what type of fund it is, and how long you held it.
For equity-oriented mutual funds — meaning funds that invest at least 65% of their assets in domestic equity shares (this covers most large-cap, mid-cap, flexi-cap, and ELSS funds) — the rules under the Income Tax Act are:
Short-Term Capital Gains (STCG) — Section 111A
Sold within 12 months of purchase. Tax rate: 20%, flat. This rate increased from 15% for all transfers on or after July 23, 2024, per the Union Budget 2024 (Finance Act, 2024), as confirmed by the Income Tax Department.
Long-Term Capital Gains (LTCG) — Section 112A
Sold after more than 12 months. Tax rate: 12.5% on gains above ₹1.25 lakh per financial year, with no indexation benefit. The ₹1.25 lakh exemption under Section 112A applies cumulatively across all your equity and equity fund gains for the year — not per fund.
Debt mutual funds are a separate category. Units bought on or after April 1, 2023 are taxed at your income tax slab rate — regardless of holding period. No LTCG benefit applies to them.
Budget update: Budget 2025 and Budget 2026 made no changes to mutual fund capital gains rates. The rates above are confirmed current for FY 2025-26 (AY 2026-27).
The Set-Off Rules: What Can Cancel What
This is the most important section in the article. Get it wrong, and your ITR has errors. Section 74 of the Income Tax Act governs how capital losses are set off and carried forward.
| Type of Loss | Can Set Off Against | Cannot Set Off Against |
| Short-Term Capital Loss (STCL) | Both STCG and LTCG | Salary, interest, or any other income head |
| Long-Term Capital Loss (LTCL) | LTCG only | STCG, salary, or any other income head |
The key asymmetry: Short-term losses are more flexible than long-term losses. STCL can cancel both STCG and LTCG. LTCL can only cancel LTCG. This means if you have a choice between harvesting an STCL or an LTCL, and you have STCG to offset — always prioritise the short-term loss.
The Correct Set-Off Sequence
This nuance is missing from most articles — including professional ones — and causes real ITR errors.
Under the Income Tax Act, the correct sequence is: losses are set off first; the ₹1.25 lakh LTCG exemption is applied after, on the net remaining gain. You cannot first claim the exemption and then ask whether there are losses to set off. The loss absorbs gains first, and only the residual (post-set-off) LTCG gets the ₹1.25 lakh exemption.
Confirmed by Quicko and CASahuja: “The exemption of ₹1.25 lakh is available on net gains remaining after loss set-off (if any).”
The Carry-Forward Rule — Do Not Miss This
If your capital losses exceed your capital gains in a year, the leftover loss can be carried forward for up to eight financial years and set off in future years. STCL carry-forward can offset any future capital gain; LTCL carry-forward can only offset future LTCG.
One non-negotiable condition: you must file your ITR by the due date — July 31, 2026 for FY 2025-26 — to preserve the carry-forward benefit. A missed deadline forfeits the carry-forward permanently under Section 74(2). There are no exceptions.
When Tax Loss Harvesting Can Backfire
This section exists in almost no article on this topic — and it should. Done mechanically, without checking the right conditions, tax loss harvesting can actually waste a valuable loss rather than save tax.
Mistake 1: Harvesting LTCL When Your LTCG Is Already Under ₹1.25 Lakh
If your total LTCG for the year is, say, ₹80,000 — already below the annual exemption — it is already tax-free. You owe zero LTCG tax. If you sell a loss-making fund to generate an LTCL and set it off against this ₹80,000, you’ve just consumed a loss that you could have carried forward to offset future LTCG. You saved nothing this year, and reduced your carry-forward weapon.
Rule: Only set LTCL against LTCG that is above the ₹1.25 lakh threshold. Don’t waste it on exempt gains.
Mistake 2: Harvesting LTCL When You Only Have STCG
You have ₹1 lakh in STCG from an equity fund redeemed in August. You have ₹80,000 in unrealised LTCL from a fund held for 18 months. Harvesting that LTCL does nothing — LTCL cannot offset STCG. You need an STCL to cancel STCG. Harvesting the wrong type of loss achieves zero tax reduction.
Mistake 3: Ignoring Exit Load and STT Costs
When you sell a fund within 12 months of purchase, most equity funds charge a 1% exit load on the redemption value. Additionally, every mutual fund redemption attracts STT (Securities Transaction Tax) at 0.001% of the redemption value — small individually, but real at scale. Then when you rebuy (either same fund or a different one), you incur STT again on the fresh purchase.
Net tax saving after all round-trip costs must still be positive. Calculate it before you act. For small positions, the saving may not justify the costs.
Mistake 4: Harvesting on the Last Trading Day
Equity fund redemptions take 1–3 business days to settle. A redemption placed on March 31 may settle in the new financial year — and then counts in FY 2026-27, not FY 2025-26. By the time you’ve done the settlement math and checked market holidays, you’ve lost the year’s opportunity. Execute by March 25 at the latest.
Tax Loss Harvesting vs Tax Gain Harvesting — Both Matter
Most investors have heard of tax loss harvesting. Fewer use tax gain harvesting — which is arguably even simpler and available to every long-term SIP investor.
Tax Loss Harvesting
Sell a fund that is currently at a loss. Book that loss. Use it to cancel out gains already realised elsewhere in your portfolio this year. Then reinvest in a comparable fund to maintain market exposure.
This works best when you have realised gains for the year — from a redemption, a Systematic Withdrawal Plan (SWP) payout, or a fund switch — and you hold other funds in the red. Always check that the loss type matches the gain type before you act.
Tax Gain Harvesting (The Strategy Most People Miss)
If your LTCG for the year is below ₹1.25 lakh, you have unused tax-free capacity. Sell fund units with long-term gains to use up that exemption, then immediately rebuy at the current NAV. No tax is triggered. But your cost basis resets to today’s price.
Illustrative scenario: Priya started a SIP in a large-cap index fund in 2021. By March 2026, the fund shows long-term gains of ₹95,000. She sells and rebuys at current NAV — paying zero tax (under the ₹1.25 lakh threshold). Her new cost of acquisition is ₹95,000 higher. When she eventually sells after five more years of growth, that original ₹95,000 of historical gain is no longer part of her taxable gain. She has removed it from her future tax base entirely.
Do this every year, in years where your LTCG stays below ₹1.25 lakh, and the compounding effect on post-tax returns over a decade is meaningful — particularly for long-running SIP investors. It’s also available separately to each family member: a salaried couple can each harvest ₹1.25 lakh in LTCG tax-free annually, effectively sheltering ₹2.5 lakh per year from the household portfolio.
Worked Example: The Correct Sequencing in Numbers
Arjun is a 34-year-old product manager earning ₹20 lakh a year. He has been investing in mutual funds for five years. In FY 2025-26, his position is:
| Fund | What Happened | Gain / Loss |
| Flexi-cap Fund A | Redeemed in September 2025, held 16 months | LTCG: ₹2,20,000 |
| Mid-cap Fund B | Still held — purchased 8 months ago | Unrealised STCL: ₹90,000 |
| Sectoral IT Fund C | Still held — purchased 22 months ago | Unrealised LTCL: ₹55,000 |
Without Tax Loss Harvesting
LTCG: ₹2,20,000 − ₹1,25,000 (exemption) = ₹95,000 taxable. Tax at 12.5%: ₹11,875.
After Tax Loss Harvesting — Correct Sequencing
Step 1: Set off losses first (before applying exemption).
STCL of ₹90,000 set off against LTCG of ₹2,20,000 → LTCG reduces to ₹1,30,000
LTCL of ₹55,000 set off against remaining LTCG of ₹1,30,000 → LTCG reduces to ₹75,000
Step 2: Apply the ₹1.25 lakh exemption to net gain after set-off.
Net LTCG after losses: ₹75,000 < ₹1,25,000 exemption → taxable LTCG = ₹0
Tax saved: ₹11,875. Tax bill: zero.
Why sequence matters: If Arjun had mistakenly applied the exemption first (₹2,20,000 − ₹1,25,000 = ₹95,000 taxable) and then tried to set off losses, he would have set off only ₹90,000 + ₹5,000 of his LTCL, still showing a small taxable amount. The correct sequence — losses first, then exemption — is what produces the zero-tax result here.
Arjun then reinvests in comparable funds — a different flexi-cap fund and a different sector fund — the same week. He stays fully invested. Net cost beyond standard STT and brokerage: essentially nothing.
(Illustrative example. Tax calculations vary by individual circumstances. Consult a CA for your specific situation.)
The FIFO Trap That Catches SIP Investors
If you invest through SIP, each monthly instalment is a separate purchase with its own holding period clock. When you redeem, the Income Tax Act applies First-In-First-Out (FIFO): oldest units are treated as sold first.
This creates a specific trap for loss harvesting. When you sell units of a fund in the red, FIFO means the oldest units are sold first — which may be long-term units (generating LTCL). But if what you actually need is short-term losses to cancel STCG, you may need to redeem more units than expected, deep enough into the portfolio to reach the newer, short-term-held units.
Illustrative scenario: Deepa started a ₹10,000/month SIP in a large-cap equity fund in January 2024. In February 2026, she wants to harvest a loss.
Under FIFO, her January and February 2024 units go first — held more than 12 months, so any loss here is LTCL. To generate STCL, she must redeem enough units to reach instalments from March 2025 onwards, which are still within 12 months.
This means: don’t assume the loss type you’re generating. Check the capital gains statement first, which shows LTCL vs STCL per lot. Your Registrar and Transfer Agent (RTA) — CAMS or KFintech — provides this automatically. Download it free from MF Central (mfcentral.com).
Three Transactions That Count as Redemptions and Trigger Tax
These are routinely missed in portfolio reviews — because they don’t look like redemptions, even though they are.
Fund Switches
Moving money from one mutual fund scheme to another — even within the same AMC — is treated as a full redemption from the first scheme and a fresh purchase in the second. Capital gains tax applies to the profit on units switched out, in the year the switch happens.
SWP Instalments
Each monthly payout from a Systematic Withdrawal Plan (SWP) is a partial redemption. Gains on each instalment are taxable in the year the money leaves the fund.
IDCW Option Change
Switching from the Growth option to the IDCW (Income Distribution cum Capital Withdrawal) option — even within the same fund — is treated as redemption of Growth units. If those units were in profit, capital gains tax applies in that year.
All three show up in your AMC’s annual capital gains statement. Cross-verify your statement against your Annual Information Statement (AIS) on the Income Tax e-filing portal before computing your harvesting math — mismatches between the two trigger tax notices.
What to Do Before March 31: Your Step-by-Step Plan
Step 1: Download your capital gains statement by February 28. Log in to MF Central (mfcentral.com), your AMC’s portal, or a portfolio tracker like Kuvera or Coin by Zerodha. Download the FY 2025-26 capital gains statement showing all realised gains and losses to date, with FIFO applied. Also download your AIS from the Income Tax e-filing portal and reconcile the two.
Step 2: Check whether you actually need to harvest. If your LTCG is already below ₹1.25 lakh, you don’t need to set off LTCL against it — you’re already exempt. Only harvest where doing so reduces actual tax liability. Don’t burn a carry-forward loss on exempt gains.
Step 3: Match loss type to gain type. STCL is needed to offset STCG. LTCL can only offset LTCG. Check the capital gains statement to confirm which type of loss you’ll be generating from each potential sale (particularly important for SIP portfolios where FIFO applies).
Step 4: Check exit loads and STT costs. Most equity funds charge 1% exit load on redemptions within 12 months, as per SEBI’s investor guidelines. STT at 0.001% applies on the redemption value. Calculate the net tax saving after both. Only proceed if the number is positive.
Step 5: Sell and reinvest into a comparable — preferably different — fund. India has no wash-sale rule, so legally you can rebuy the same fund. But to ensure the transaction has clear economic substance and to avoid potential scrutiny under GAAR provisions, most tax advisors recommend switching to a comparable fund from a different AMC (e.g., replace your Mirae Nifty 50 fund with an Axis Nifty 50 fund). You maintain your market exposure; the loss is properly crystallised.
Step 6: Execute by March 25 at the latest. Equity fund redemptions settle in 1–3 business days. Markets close on March 28, 29, and 30 in most years. Place your redemption no later than March 25. Only settled transactions count in FY 2025-26.
Step 7: File ITR-2 (not ITR-1) by July 31, 2026. Salaried investors with any capital gains from mutual funds must file ITR-2, not ITR-1. Report all gains and losses in Schedule CG. To carry forward any unadjusted losses, your return must be filed by July 31, 2026 — a late filing permanently forfeits the carry-forward under Section 74(2). No extensions are given for this.
Related Reading on The Salary Investor
- Capital Gains Tax in India: The Complete Guide to STCG and LTCG for FY 2025-26
- ITR-1 vs ITR-2: Which Form Should You File If You Have Capital Gains from Mutual Funds?
- What Is SWP (Systematic Withdrawal Plan) and How to Use It to Create a Monthly Income?
- Best Index Funds in India for Beginners in 2026
- ELSS vs PPF for Tax Saving in India 2026: Which One Should You Actually Pick?
Disclaimer: This article is for general educational purposes only and reflects capital gains tax rules applicable to FY 2025-26 (AY 2026-27) as of July 2026. Tax rates, exemption limits, set-off provisions, and filing deadlines are subject to change with future Union Budgets and CBDT notifications. Mutual fund returns are not guaranteed and past performance is not indicative of future results. This is not investment advice, tax advice, or a solicitation to buy or sell any fund. Please consult a SEBI-registered investment advisor or a practising Chartered Accountant for personalised advice before making investment decisions based on tax considerations.
Sources: Section 112A — Income Tax Act (Income Tax Department of India) · Income Tax Department, accessed July 2026 * Section 74 — Losses under Capital Gains (Income Tax Department) · Income Tax Department of India, accessed July 2026 * Capital Gain — Tax on Sale of Equity Shares and Mutual Funds · Income Tax Department of India, updated May 2026 * Set Off and Carry Forward of Capital Losses · ClearTax, updated April 2026 * Mutual Fund Capital Gains Tax Rules for AY 2026-27 · Tax Garden, June 2026 * Exit Load in Mutual Funds — SEBI Investor Education · SEBI (Securities and Exchange Board of India) * Capital Loss Set-Off Rules AY 2026-27 · Patron Accounting, April 2026
He figured out most of what he knows about personal finance not from courses or advisors, but from years of reading, making mistakes, and fixing them. The Salary Investor is his attempt to save other salaried Indians the same time and money.
He is not a CA or a SEBI-registered advisor. He writes as a fellow salaried person who has been in the trenches — navigating EPF, ITR, 80C, salary slips, and market volatility.
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