Tax-Loss Harvesting in India: How to Reduce Your Tax Bill by Booking Losses Strategically

If you invest in stocks or mutual funds, you have probably focused on maximising gains. But did you know that strategically booking losses can be just as valuable? Tax-loss harvesting is a technique where you sell underperforming investments at a loss to offset taxable capital gains, reducing your overall tax liability — completely within the law.

Here is how Indian investors can use this strategy effectively for AY 2026-27.

What Is Tax-Loss Harvesting?

Tax-loss harvesting means selling an investment that is currently trading below your purchase price, booking the resulting capital loss, and using that loss to offset capital gains you have realised during the same financial year.

The core idea is simple: you would have paid tax on your gains anyway, and the loss reduces the amount of gains subject to tax. If you still believe in the long-term potential of the asset you sold, you can buy it back after a short interval.

Example: During FY 2025-26, Priya sold equity mutual fund units and made an LTCG of Rs 3,00,000. She also holds a stock that is currently at a Rs 1,20,000 unrealised loss. If she sells that stock before March 31, she books the Rs 1,20,000 loss and offsets it against her LTCG. Her taxable LTCG drops from Rs 1,75,000 (after the Rs 1.25 lakh exemption) to Rs 55,000 — saving her Rs 15,000 in tax.

Capital Gains Tax Rates You Are Offsetting

Before diving into the mechanics, here is what you are saving against:

For a detailed breakdown, see our guide to capital gains tax on stocks and mutual funds.

Set-Off Rules: What Can Offset What

The Income Tax Act has specific rules about which losses can offset which gains. Getting this wrong defeats the purpose of harvesting.

Rule 1: Short-Term Loss Can Offset Any Capital Gain

A short-term capital loss (STCL) can be set off against both short-term capital gains (STCG) and long-term capital gains (LTCG). This makes STCL the most flexible type of loss for harvesting.

Rule 2: Long-Term Loss Can Only Offset Long-Term Gains

A long-term capital loss (LTCL) can only be set off against LTCG. It cannot be used to reduce STCG or any other income. This is a critical constraint — do not assume all losses are interchangeable.

Rule 3: Capital Losses Cannot Offset Salary or Other Income

Capital losses (both short-term and long-term) can only be set off against capital gains. You cannot use investment losses to reduce tax on your salary, rental income, or business income.

Rule 4: Carry Forward for Up to 8 Years

If your total capital losses exceed your total capital gains in a financial year, the excess loss can be carried forward for up to 8 assessment years. This carry-forward is only available if you file your ITR before the due date (July 31 for most individuals).

Step-by-Step: How to Harvest Losses

Step 1: Review Your Portfolio Before March 31

The most important window for tax-loss harvesting is January to March, before the financial year ends. Review your holdings and identify positions that are trading below your purchase cost.

Step 2: Calculate Your Realised Gains So Far

Add up all the capital gains you have already booked during the year from selling stocks, mutual funds, or other assets. Remember to factor in the Rs 1.25 lakh LTCG exemption for listed equity.

Step 3: Identify Harvesting Candidates

Look for holdings where:

• The current market value is below your purchase cost
• You do not expect a sharp recovery before March 31
• Selling will not disrupt a long-term portfolio strategy you are committed to

Step 4: Sell to Book the Loss

Execute the sell order. For the loss to count in the current financial year, the transaction must settle before March 31. For listed equity, settlement is T+1, so you need to sell by March 28 at the latest (accounting for weekends and holidays).

Step 5: Optionally Repurchase

If you still want exposure to the same asset, you can repurchase it after selling. India does not have a formal wash sale rule like the United States, so there is no mandatory waiting period. However, buying back on the same day at the same price could invite scrutiny from tax authorities as a sham transaction. A practical approach is to wait a few trading days or buy a similar (but not identical) fund in the interim.

Step 6: Report Everything in Your ITR

All transactions — both gain-making and loss-making — must be reported in your ITR. Since you have capital gains or losses from listed securities, you will need to file ITR-2. Make sure your ITR is filed before the due date to preserve the carry-forward benefit.

Practical Example: Full Walkthrough

Rahul has the following transactions in FY 2025-26:

Without harvesting:

• Taxable LTCG: Rs 2,50,000 - Rs 1,25,000 (exemption) = Rs 1,25,000 at 12.5% = Rs 15,625
• Taxable STCG: Rs 40,000 at 20% = Rs 8,000
• Total tax on capital gains: Rs 23,625 (plus cess)

With harvesting (selling both losing positions before March 31):

• STCL of Rs 80,000 set off against STCG of Rs 40,000 first, then remaining Rs 40,000 against LTCG
• LTCL of Rs 50,000 set off against LTCG
• Taxable LTCG: Rs 2,50,000 - Rs 1,25,000 (exemption) - Rs 40,000 (STCL) - Rs 50,000 (LTCL) = Rs 35,000 at 12.5% = Rs 4,375
• Taxable STCG: Rs 0 (fully offset)
• Total tax on capital gains: Rs 4,375 (plus cess)

Tax saved: Rs 19,250 — simply by selling positions that were losing money anyway.

The LTCG Exemption Harvesting Trick

Even if you do not have losing positions, you can use a related strategy to harvest the Rs 1.25 lakh annual LTCG exemption. If you hold equity investments with accumulated long-term gains, consider selling units worth up to Rs 1.25 lakh in LTCG each year and immediately repurchasing them. This resets your purchase cost to the current market price, and the gains up to Rs 1.25 lakh are completely tax-free.

Example: Meera invested Rs 5,00,000 in an index fund three years ago. It is now worth Rs 7,00,000 (gain of Rs 2,00,000). She sells units worth Rs 1,25,000 in LTCG, pays zero tax, and buys them back. Next year, her cost basis for those units is the higher repurchase price, reducing future taxable gains.

This works best as an annual practice. Over several years, you systematically eliminate embedded gains without ever paying tax on them.

Common Mistakes to Avoid

Harvesting Losses You Cannot Use

If you have no capital gains to offset (and do not expect any in the next 8 years), harvesting losses has limited value. You are booking a real loss and incurring transaction costs (brokerage, STT, GST) without a tax offset to show for it.

Ignoring Transaction Costs

Every sale incurs Securities Transaction Tax, brokerage, GST, exchange charges, and stamp duty. For a trade worth Rs 1,00,000, these costs typically range from Rs 100 to Rs 300 for delivery trades. Make sure the tax saving exceeds these costs.

Missing the Filing Deadline

If you file your ITR after July 31 (or the applicable due date), you lose the right to carry forward capital losses. The losses from the current year can still be set off against current year gains, but any excess simply vanishes. Always file on time.

Forgetting to Report Loss Transactions

Some investors skip reporting sale transactions where they made a loss, thinking only gains matter. Every transaction must be reported. If you do not report the loss, you cannot claim the set-off or carry forward.

Aggressive Same-Day Buybacks

While India does not have a formal wash sale rule, buying back the exact same security on the same day at the same price can be viewed as a colourable device to evade tax. Tax authorities may disallow the loss. Space out your repurchase by a few days or switch to a comparable alternative.

Tax-Loss Harvesting Checklist

Use this checklist in the last quarter of each financial year:

• Calculate total realised capital gains for the year so far
• Identify holdings trading below purchase cost
• Verify whether each loss is short-term or long-term
• Match losses against gains using set-off rules
• Confirm the tax saving exceeds transaction costs
• Execute sell orders with enough time for settlement before March 31
• Decide whether to repurchase or reallocate
• Report all transactions in ITR-2 and file before the due date

How 49Tax Helps

When you upload your capital gains statement or broker tax P&L on 49Tax, the platform automatically categorises each transaction as short-term or long-term, computes set-offs following the rules above, and populates the correct schedules in your ITR-2. You do not need to manually track which losses offset which gains — the computation handles it for you.

Key Takeaway

Tax-loss harvesting is not about celebrating losses — it is about making your portfolio tax-efficient. By systematically booking losses to offset gains and utilising the Rs 1.25 lakh LTCG exemption annually, you keep more of your investment returns. The best time to review your portfolio for harvesting opportunities is before March 31 each year, and the most important thing is to file your return on time so carry-forward losses are preserved.