Investor guide · 10 min · Reviewed 2026-09-02
Tax Loss Harvesting in the United States
In the U.S., tax loss harvesting usually means selling losers in a taxable account to offset capital gains - and sometimes up to $3,000 of ordinary income - while watching the wash-sale rule. This guide frames the pattern; confirm current IRS rules and your broker reports before filing.
Where U.S. harvesting applies
Harvesting is mainly a taxable-brokerage technique. Losses inside traditional IRAs or 401(k)s generally do not create the same current-year capital-loss deduction pattern. If most of your equity sits in retirement wrappers, focus on contribution strategy and asset location instead of year-end loss harvesting theater.
Offsets and carryforwards (high level)
Realized capital losses typically offset realized capital gains first. Many U.S. filers can also apply a limited amount of net capital loss against ordinary income each year, with unused losses carried forward. Holding periods (short-term vs long-term) still matter for how gains are characterized - see our short-term vs long-term CGT guide.
Wash-sale timing
The classic U.S. wash-sale idea looks at a window around the sale (often described as 30 days before and after). Buying the same or a substantially identical security in that window can disallow or defer the loss. Substituting a similar ETF is a common tactic, but “substantially identical” is not a marketing slogan - document your economic rationale and read broker wash-sale notations on 1099-B carefully.
Use StockWatch next
Open the U.S. capital-gains desk for local framing, the wash-sale guide for the repurchase trap, and the tax-advantaged accounts guide if you are deciding what belongs in a brokerage vs an IRA. Pair with the ETF hub when rotating exposure rather than going to cash.
Simple illustration (not tax advice)
Educational numbers only - not your return.
You realize $12,000 of long-term gains on one fund and sell another holding for an $8,000 loss in the same tax year in a taxable account. Many U.S. filers would net those amounts before rates and preferential long-term treatment - subject to wash-sale adjustments and your full return. Confirm with Form 1099-B and a preparer.
Interactive checklist
Harvest readiness helper
Educational tool only - not tax, legal, or investment advice.
If the shares sit in a tax-advantaged wrapper, year-end loss harvesting usually does not work the way taxable-brokerage guides describe. Open the accounts guide and your country desk instead.
Enter gains and a potential loss to see a rough net picture (not your tax bill).
Common mistakes
- Harvesting inside an IRA as if it created a Schedule D capital loss.
- Buying the same ETF back within the wash-sale window and losing the deduction.
- Ignoring short-term vs long-term characterization when planning offsets.
- Treating Robinhood or broker “tax insights” as a filed return.
Continue on StockWatch
Guide FAQ
Short answers for discovery.
Does tax loss harvesting work in a Roth IRA?
Generally no in the same sense as a taxable account. Retirement-account losses are not usually harvested year-by-year on Schedule D the way brokerage losses are.
Is the $3,000 ordinary-income offset guaranteed?
It is a common U.S. pattern for net capital losses, but your facts, filing status, and current law control. Confirm on IRS materials for the tax year you are filing.
Can StockWatch mark wash sales on my trades?
No. Use broker statements and a qualified professional. StockWatch is educational research software.