Tax-loss harvesting is one of the most underutilised yet perfectly legal strategies available to Indian equity investors. The concept is simple: sell investments that are currently at a loss to offset capital gains from profitable investments, thereby reducing your overall tax liability for the year. Done correctly, this technique can save you thousands to lakhs in capital gains tax each year without fundamentally altering your investment portfolio or long-term wealth trajectory.
How Tax-Loss Harvesting Works in India
The Income Tax Act allows you to set off capital losses against capital gains. Short-term capital losses can be set off against both short-term and long-term capital gains. Long-term capital losses, however, can only be set off against long-term capital gains. If losses exceed gains in a year, the unabsorbed losses can be carried forward for up to 8 assessment years, provided you file your return on time. This framework creates a clear opportunity: if you have booked profits on some investments and hold paper losses on others, selling the losers before 31 March reduces your net taxable gains. Calculate the impact with the capital gains tax calculator.
The LTCG Exemption and Why Harvesting Matters More Now
Since the introduction of long-term capital gains tax on equity at 12.5 percent above the 1.25 lakh annual exemption, tax-loss harvesting has become directly relevant for equity investors. Before 2018, there was no LTCG tax on listed shares, so harvesting served no purpose for long-term holders. Now, every rupee of LTCG above the exemption threshold is taxable, and every rupee of loss you can set off against those gains saves you 12.5 paise per rupee. For someone with 5 lakh in LTCG and 2 lakh in harvestable losses, the tax saving is 25,000 -- meaningful by any measure.
Step-by-Step Process for Tax-Loss Harvesting
First, review your portfolio in February or March to identify holdings that are currently below your purchase price. Separate them into short-term holdings under 12 months and long-term holdings over 12 months. Second, calculate your realised capital gains for the year from all sales already completed. Third, determine how much loss you need to book to offset these gains or to stay within the 1.25 lakh LTCG exemption. Fourth, sell the loss-making holdings through your broker. Fifth, if you still believe in those stocks or funds, you can repurchase them after a reasonable interval. India does not have a wash-sale rule like the United States, so there is no mandatory waiting period, though purchasing on the same day may attract scrutiny.
The Re-Entry Strategy
Unlike the US, India currently has no formal wash-sale rule that disallows losses if you repurchase the same security within 30 days. However, tax authorities have the power to disregard transactions that appear to be sham or colourable devices. Selling and immediately buying back the same stock on the same exchange on the same day purely for tax purposes could be challenged. A prudent approach is to wait at least one or two trading days before repurchasing, or to buy a similar but not identical asset -- for example, selling one large-cap fund and buying another large-cap fund in the interim.
Short-Term vs Long-Term Loss Harvesting
Short-term losses are more valuable because they offset gains taxed at 20 percent for equity and at slab rates for other assets. Long-term losses, while still useful, offset gains taxed at only 12.5 percent and cannot be used against short-term gains. Prioritise harvesting short-term losses first if you have both types available. When carrying forward losses, remember that short-term losses carried forward retain their character and can offset both STCG and LTCG in future years. Track all of this in the context of your overall tax picture using the income tax calculator.
Common Mistakes in Tax-Loss Harvesting
The biggest error is selling good long-term holdings just because they are temporarily down. Tax savings should never override investment fundamentals. If a stock is down 15 percent but you believe it will recover and appreciate significantly, the cost of selling and triggering a suboptimal entry point on repurchase may exceed the tax saved. Another mistake is not filing the return on time -- if you do not file within the due date, you lose the ability to carry forward capital losses. Also, not distinguishing between the tax treatment of different asset classes leads to suboptimal harvesting. Debt fund losses behave differently from equity losses under the current rules.
Timing Your Harvest
While March seems like the natural month for harvesting, waiting until the last week creates execution risk -- market volatility, settlement cycles, and broker delays can derail your plan. Start reviewing your portfolio for harvesting opportunities in January or February. If you identify clear candidates, execute early. You can also harvest throughout the year whenever a holding drops below cost and you have gains to offset. The key is maintaining an annual tracker of realised gains and losses so you always know your position. If the gains trigger advance tax obligations, harvesting can also reduce those quarterly payments.
Tax-Loss Harvesting and Regime Choice
Capital gains are taxed the same way under both the old and new tax regimes, so harvesting is beneficial regardless of your regime choice. However, the overall tax impact depends on your total income picture. If harvesting your losses brings your capital gains close to zero, it may also affect whether the old or new regime is more beneficial for you. Run the numbers through the old vs new regime calculator after estimating your net capital gains post-harvest. Our guide to saving income tax on salary covers how harvesting fits into your broader tax strategy.