What Is Tax Loss Harvesting
You sell an investment that is worth less than you paid, and use that loss to cut the taxable gain on something else you sold at a profit. It is ordinary tax planning: the Act lets capital losses be set off against capital gains.
An example. You bought a stock at ₹1,000 and it now trades at ₹600, so you are ₹400 down on paper. Another stock you sold this year made ₹800. Sell the first one and the ₹400 loss comes off the ₹800 gain. You pay tax on ₹400 instead of ₹800.
WHAT IT CAN SAVE
Listed equity LTCG is taxed at 12.5% above ₹1.25L a year, and STCG at 20%. So each rupee of loss used against those gains saves ₹0.125 to ₹0.20 of tax before cess. ₹5L of losses used that way saves ₹62,500 to ₹1,00,000 before cess.
You have to actually sell. A paper loss does nothing. If you still like the investment, you can buy it back. India has no wash-sale rule, so the loss stands even if you rebuy the next day. See the capital gains guide.