When the market drops, most investors panic.
Smart investors do something called tax-loss harvesting.
It turns paper losses into real cash savings — up to $3,000/year.
Most beginners have never heard of it.
What tax-loss harvesting actually is
You own an investment that has dropped in value. Instead of holding and hoping, you sell it to lock in the loss. That loss can then offset taxes on your gains — and even on your regular income.
Then you immediately buy a similar but not identical investment to maintain market exposure.
Result: same exposure to the market, but a tax-deductible loss on your books.
The simple example
You bought $10,000 of VOO. It dropped to $8,000. You also bought $10,000 of QQQ — it gained $4,000.
Without tax-loss harvesting: $4,000 capital gain, taxed at 15% = $600 tax bill.
With tax-loss harvesting: sell VOO for the $2,000 loss, immediately buy similar SPY. Now your gain is $4,000 - $2,000 = $2,000 net gain. Tax bill: $300.
If your losses exceed your gains, the IRS lets you deduct up to $3,000/year against your ordinary income (your salary). At a 22% marginal rate, that is $660 in real cash savings — every year, until losses are used up. Excess losses carry forward indefinitely.
The wash sale rule (this is the trap)
The IRS does not let you sell at a loss and immediately buy back the exact same investment within 30 days. That is called a "wash sale" and the loss gets disallowed.
The workaround: buy a similar but not identical investment. Examples:
VOO and SPY track the same index but are managed by different companies. The IRS treats them as different securities. Same with most major ETF pairs.
When to harvest losses
- End of year (October-December) — most tax planning happens here. Review your portfolio and harvest before December 31.
- After major market drops — 2020, 2022, any 10%+ correction. Plenty of harvesting opportunities.
- Throughout the year if positions go red — losses do not have to wait for December.
The annual limits worth memorizing
- $3,000/year — maximum loss deductible against ordinary income.
- Unlimited — losses that can offset capital gains in the same year.
- Indefinite — carry-forward of unused losses to future years.
This means a single bad market year can save you thousands in taxes for years afterward.
What automation tools do this for you
Some platforms offer "automatic tax-loss harvesting" — Wealthfront, Betterment, Fidelity, Schwab. They scan your portfolio daily and harvest losses automatically. Useful if you have a large taxable account.
For most beginners with smaller accounts, doing it manually 1-2 times per year is enough.
The mistake that costs people the harvest
Selling at a loss and then forgetting to buy the replacement. You harvested the loss, but you also missed the recovery. Always replace immediately — within minutes if possible.
Estimate your tax savings — input your gains, losses, and tax bracket — and see exactly how much harvesting would save you this year.
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