[0:02] It's inevitable that you'll lose money on  some investments and make a profit on others.   [0:07] But there is a bright side to those losing  investments—they might help you lower your tax   [0:11] bill through a process called tax-loss harvesting. It usually works like this. You sell an investment   [0:21] that's worth less than what you bought it  for. You also sell an investment that's   [0:26] worth more than what you bought it for. The  loss on the one helps offset the gains on the   [0:31] other. And then you take the proceeds from  both sales to reinvest in securities that   [0:38] fit both your asset allocation and time horizon. Let's walk through an example. You're looking at   [0:50] your portfolio, and you see that the tech stocks  you own have gained in value, while your health   [0:59] care stocks have dropped. Now your portfolio's  over-weighted to tech stocks. So you sell some   [1:12] of those tech stocks, realizing a taxable gain. You also sell some of your health care stocks,   [1:19] realizing a loss. You take the proceeds  from both sales and reinvest those   [1:25] funds in a way that rebalances your  portfolio and aligns with your goals.  [1:31] When it's time to do your taxes, the loss  on those health care stocks could offset   [1:35] the gain on those tech stocks, and you won't  owe any capital gains taxes. In addition,   [1:43] the IRS allows you to use up to $3,000 of the  remaining capital loss to lower your ordinary   [1:49] taxable income each year. In this example,  the final $2,000 is carried forward and could   [1:54] be used to offset income in future tax years. Assuming a 35% marginal tax rate, your overall   [2:01] tax benefit could be as much as $8,050. Even if you don't have any capital gains   [2:08] to offset, any investment losses  in the current tax year could   [2:11] still reduce your taxable income by up to $3,000. There are some rules to keep in mind. You can only   [2:20] do tax-loss harvesting in your taxable brokerage  accounts—not in 401(k)s or IRAs. You have to use   [2:27] short-term losses to offset short-term gains and  long-term losses to offset long-term gains, but if   [2:33] you have excess losses in either category, they  can be applied to either type of gain. Finally,   [2:40] if you sell a security at a loss and buy the  same or a "substantially identical" security   [2:45] within 30 days before or after the sale,  you can't have it count against gains. So   [2:50] make sure when you're tax-loss harvesting that  you're reinvesting in different securities than   [2:55] the ones you're using to book a loss. Consult your tax or financial-planning   [2:59] professional to see how tax-loss harvesting  could fit into your financial picture.