We’ve all been there: you check your brokerage account and see one of your stocks or funds is down. It stings, right? It feels like money lost.

A losing position doesn’t just mean less money. It can actually mean less tax. This powerful, tax-smart strategy is called Tax-Loss Harvesting (TLH), and it’s one of the best ways to keep more of your money working for you, instead of sending it to the IRS.

So, what is TLH, how does it work its magic, and what are the crucial rules you need to follow? Let’s break it down.

What is Tax-Loss Harvesting, Really?

Tax-loss harvesting is simply the act of intentionally selling an investment for less than you paid for it to realize a loss, and then using that loss to offset gains you made elsewhere in your portfolio.

Think of it like this: The IRS wants a piece of the profit whenever you sell an investment for a gain (a “capital gain”). TLH allows you to use your losses as a counterbalance to those gains. You only pay taxes on your net capital gains (Gains minus Losses).

This strategy is a true win-win for two main reasons:

1. Lower Tax Bill Now: You reduce or eliminate the tax liability on your profitable sales.
2. Stay Invested: You can immediately reinvest the money from the sale into a similar investment to maintain your desired market exposure and keep your long-term strategy on track.

The Power of the Loss

Your losses can offset any amount of capital gains you have in a given year. That’s huge!

But it gets even better: if your total losses are more than your total gains, you can use up to $3,000 of the net loss (or $1,500 if married and filing separately) to reduce your ordinary income (like your salary or wages). Any leftover losses can be carried forward indefinitely to offset future gains! That’s a powerful tool to carry in your financial backpack.

The Golden Rule: Beware the Wash Sale!

This strategy sounds so good, you might wonder why everyone doesn’t just sell a losing stock on December 31st and buy it back on January 1st. Well, the IRS is way ahead of you!

This brings us to the most important rule in TLH: The Wash Sale Rule.

The wash sale rule prohibits you from claiming a tax loss if you buy or acquire a “substantially identical” security within 30 days before or 30 days after the sale. That means you have a 61-day window (the day of the sale plus 30 days on either side) to worry about.

What Does This Mean in Practice?

• Don’t Buy the Same Thing: If you sell XYZ Stock at a loss, you cannot buy XYZ Stock back within that 61-day window.
• Don’t Buy “Substantially Identical”: This is the tricky part. If you sell a fund that tracks the S&P 500 (like VOO), you can’t immediately buy a different fund that also tracks the S&P 500 (like IVV). They are too similar!
• The Smart Swapping Solution: The trick is to replace the sold investment with a security that fills the same role in your portfolio but is not substantially identical. For example, you could sell a domestic large-cap growth fund for a loss and immediately buy a domestic large-cap value fund, maintaining your exposure to the U.S. market but avoiding the wash sale rule.

If you break this rule, the loss is disallowed for tax purposes that year—effectively wasting your effort. It’s crucial to get the replacement trade right!

TLH and Your Investment Accounts

One final, vital point: Tax-Loss Harvesting only works in taxable brokerage accounts!

It does not apply to tax-advantaged accounts like your:

• Traditional 401(k) or IRA
• Roth 401(k) or IRA
• Health Savings Account (HSA)

Why? Because the money inside those accounts is already tax-deferred or tax-free! You don’t pay capital gains tax on transactions within those accounts, so there’s no tax to “harvest” the loss against. Keep this distinction clear!

Key Takeaway

Tax-loss harvesting is a sophisticated, year-round strategy that can save you real dollars on your tax return. It requires discipline, constant monitoring, and, most importantly, knowing the Wash Sale Rule like the back of your hand. This is where a financial advisor can really bring value, using software and expertise to identify losses and execute the replacement trades without tripping up the IRS.

Sources:

https://www.investopedia.com/terms/c/capital_gains_tax.asp

https://www.irs.gov/forms-pubs/about-publication-550

This information is provided as general information and is not intended to be specific financial guidance.  Before you make any decisions regarding your personal financial situation, you should consult a financial or tax professional to discuss your individual circumstances and objectives. The source(s) used to prepare this material is/are believed to be true, accurate and reliable, but is/are not guaranteed.