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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallTax-loss harvesting is primarily a taxable-brokerage strategy, not an IRA strategy. Selling an investment for less than its tax basis in a taxable account can produce a reportable capital loss that offsets capital gains and, within federal limits, other income. A loss realized inside a traditional or Roth IRA does not create that same current deduction.
Buying the investment back in an IRA does not sidestep the wash-sale rule. If you acquire substantially identical stock or securities in an IRA or Roth IRA within 30 days before or after the taxable-account loss sale, the IRS can disallow the loss. Unlike an ordinary taxable-account replacement, the IRA purchase does not receive the usual basis increase that postpones the deduction.
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The comparison at a glance
| Issue | Taxable brokerage account | Traditional or Roth IRA |
|---|---|---|
| Why a loss matters | A realized capital loss enters your federal capital-gain and loss calculation, subject to reporting, holding-period rules and annual limits. | A decline or sale inside the IRA generally does not create the current individual capital-loss deduction that makes harvesting useful. |
| Can an account purchase trigger a wash sale? | Yes. A loss sale can be affected by qualifying purchases in the same account or elsewhere. | Yes. An IRA or Roth IRA acquisition of substantially identical securities is expressly included in the wash-sale rule. |
| What happens to a disallowed loss? | For a normal taxable replacement position, the loss is generally added to the replacement position’s basis, postponing the deduction. | The IRS exception means the IRA replacement does not receive that basis adjustment. |
| Broker reporting | Form 1099-B reporting generally covers covered securities with the same CUSIP bought in the same account; it does not capture every cross-account case. | An IRA purchase may not appear in the taxable broker’s wash-sale reporting, leaving you responsible for reviewing all accounts. |
This is a U.S. federal-income-tax comparison. State rules, contribution and distribution issues, and your individual facts can change the result.
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What tax-loss harvesting actually accomplishes
Harvesting means selling a taxable investment whose market value is below its tax basis, thereby realizing the loss for tax reporting. The sale does not guarantee a tax saving equal to the dollar loss. The loss first interacts with realized capital gains, and any remaining net capital loss is subject to the federal deduction limit.
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For 2025, the Internal Revenue Service’s Publication 550 says net capital loss in excess of capital gains can generally offset up to $3,000 of other income, or $1,500 for married taxpayers filing separately. The deduction cannot exceed your total net loss. Unused losses can generally carry forward to later years and retain their short-term or long-term character. Your filing status, income, gains, losses and holding periods determine the actual result.
An IRA is different because its investment transactions normally stay inside the retirement account’s tax regime. Selling a fund at a loss inside a traditional or Roth IRA does not place a capital loss on your individual return in the way a taxable-account sale does. The fact that an IRA investment fell does not create a harvesting opportunity for current federal tax purposes.
How the wash-sale rule works across account types
Section 1091 of the Internal Revenue Code denies a deduction when you sell or trade stock or securities at a loss and, within 30 days before or after that disposition, acquire substantially identical stock or securities or a contract or option to acquire them. The statutory text is available at 26 U.S.C. § 1091. The IRS describes the same timing and events in its 2025 Instructions for Schedule D.
People often call this a 61-day window: the 30 days before the loss sale, the sale date itself and the 30 days after. The rule is not limited to a purchase in the account where you sold. Relevant events can include:
- Buying substantially identical stock or securities in another taxable account.
- Acquiring them in a fully taxable trade.
- Buying a call option or another contract to acquire them.
- Acquiring them for a traditional IRA or Roth IRA.
- A spouse acquiring substantially identical securities.
- A corporation you control acquiring substantially identical securities.
The IRS also recognizes an exception for losses incurred in the ordinary course of a dealer’s business in stock or securities. That exception is not the ordinary investor’s situation.
Why buying back in an IRA is not a workaround
An investor may sell a losing position in a taxable brokerage account and then buy the same investment in an IRA to keep market exposure. The account boundary does not remove the wash-sale risk. The IRS specifically includes an acquisition for an IRA or Roth IRA in the wash-sale rule.
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The consequence is more severe than the familiar taxable-account deferral. In a normal taxable replacement, Publication 550 generally requires adding the disallowed loss to the replacement security’s cost basis. That higher basis can preserve the economic loss for a later taxable disposition. The publication expressly excludes an IRA or Roth IRA acquisition from that basis adjustment. Therefore, do not assume the loss has simply moved into the IRA to be used later; the cited IRS rule does not provide the ordinary basis increase for the IRA asset. The ultimate tax outcome can depend on the complete set of transactions and your facts.
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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →The same analysis applies whether the receiving account is a traditional IRA or a Roth IRA. The rule is about the acquisition of substantially identical securities, not about whether the retirement account itself is deductible, tax-deferred or tax-free.
What counts as substantially identical?
There is no IRS list that declares every pair of funds or exchange-traded funds either safe or prohibited. Publication 550 instructs taxpayers to consider all facts and circumstances. It says securities of different corporations are ordinarily not substantially identical, while noting that they can be in some circumstances, such as certain reorganizations. The publication also gives fact-specific examples involving convertible preferred stock and common stock.
That facts-and-circumstances standard means “similar” is not a legal synonym for “substantially identical.” Two funds can follow related indexes, hold many of the same securities or have different names and still require analysis. The primary IRS sources do not establish a universal safe harbor for switching between particular index funds or ETFs. If the tax result matters, document why the replacement is materially different and obtain advice based on the specific securities rather than relying on a generic internet rule.
A disciplined taxable-account harvesting process
- Identify the tax lot and basis. Confirm the purchase date, adjusted basis, quantity and whether the position is short-term or long-term. A loss is realized only when you dispose of the asset.
- Map gains and losses for the year. Estimate realized short-term and long-term gains, existing losses and any carryforward. A harvested loss is most immediately useful when it offsets gains, but the $3,000/$1,500 federal limit applies to excess net loss against other income.
- Search every relevant account for the 61-day window. Review taxable accounts, traditional and Roth IRAs, a spouse’s accounts, automatic-investment programs, dividend reinvestments and open orders. Include options or contracts that could acquire the security.
- Decide whether the replacement is genuinely different. Do not rely solely on a different ticker or fund name. Compare the issuer, legal security, rights, conversion features, index mandate and other facts that bear on substantial identity.
- Place and document the sale. Save the trade confirmation, basis records and the date and quantity sold. If you use tax-lot selection, verify that the broker’s chosen lots match your instruction.
- Control purchases through the end of the window. Do not acquire the sold security or a potentially substantially identical replacement during the 30 days after the sale. Also check purchases made during the 30 days before it; a later decision cannot undo an earlier acquisition.
- Reconcile tax forms with your own records. When Form 1099-B arrives, compare its proceeds, basis and reported wash-sale amounts with activity in all accounts. Add any wash sales the broker did not report before preparing Form 8949 and Schedule D.
Harvesting can also change portfolio risk. A replacement that is too different may leave your allocation or diversification inconsistent with your plan; a replacement that is too similar may create wash-sale uncertainty. Treat the tax decision and the investment decision as separate checks.
Worked examples
Loss sale with no replacement purchase
You sell shares in a taxable account for a $4,000 loss and make no substantially identical acquisition during the surrounding 30-day periods. If you have $2,500 of capital gains, the loss can generally offset those gains, leaving a $1,500 net capital loss. That remaining loss is within the 2025 federal limit for offsetting other income for a taxpayer who is not married filing separately. The exact deduction still depends on your return.
Taxable-account replacement
You sell 100 shares at a $250 loss and repurchase substantially identical shares in a taxable account within the window. Publication 550’s example treats the $250 as a disallowed wash-sale loss and adds it to the replacement position’s basis. The deduction is generally postponed until the replacement position is disposed of in a transaction that is not itself a wash sale.
IRA replacement
You sell the same 100 shares at a $250 loss in the taxable account, then acquire substantially identical shares in a Roth IRA within the window. The taxable-account loss is subject to the wash-sale rule, and the IRS publication’s IRA exception means the Roth IRA asset does not receive the ordinary $250 basis increase. You should not describe this as a normal basis-deferral transaction.
Purchase before the sale
You buy substantially identical shares in an IRA 10 days before selling the taxable-account lot at a loss. The purchase falls inside the 30-days-before portion of the window. The fact that the IRA buy happened first does not protect the later taxable sale.
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Broker reporting does not replace your review
The IRS explains that a broker generally reports a wash-sale adjustment on Form 1099-B when the sold and replacement assets are covered securities with the same CUSIP and the replacement purchase occurs in the same account. That reporting scope is narrower than the taxpayer-level rule.
A taxable broker may not know about an IRA purchase, a spouse’s purchase, activity at another firm, an automatic dividend reinvestment or an option transaction. The absence of a wash-sale amount on Form 1099-B does not make an otherwise disallowed loss deductible. Maintain a consolidated transaction log and preserve confirmations, statements and basis information for every account that could affect the window.
For filing, taxable sales generally flow through Form 8949 and Schedule D. Tax-preparation software can help organize those forms, but it cannot infer every cross-account transaction from a single broker feed. You remain responsible for correcting omissions and reporting the result accurately.
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Common mistakes and how to correct them
Calling an IRA a tax-loss-harvesting account
Why it fails: A loss inside an IRA generally does not produce the current capital-loss deduction available from a taxable account.
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Assuming the IRA boundary defeats the wash sale
Why it fails: IRS guidance expressly includes IRA and Roth IRA acquisitions.
Better approach: Include retirement-account purchases in your pre-trade and post-trade 30-day review.
Using a different ticker as proof that securities are different
Why it fails: The IRS uses a facts-and-circumstances test, not a ticker-symbol test.
Better approach: Examine the actual legal security and investment characteristics; when uncertainty is material, obtain individualized tax advice.
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Trusting a clean 1099-B
Why it fails: Broker reporting commonly has same-account and same-CUSIP limits.
Better approach: Reconcile all accounts, spouses, reinvestments and derivatives before filing.
Expecting a dollar-for-dollar tax refund
Why it fails: Losses offset gains first, and excess net loss is generally limited to $3,000 ($1,500 if married filing separately) against other income for 2025, with carryforward rules.
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When professional help is warranted
Consider a tax professional when transactions span multiple brokers or family members, involve options, include large positions, use complex cost-basis methods, or could affect a substantial carryforward. Bring trade confirmations, year-end statements, IRA statements, dividend-reinvestment records, prior-year Schedule D and carryforward worksheets. Ask specifically how the professional is applying the substantially-identical standard and whether any IRA basis exception affects the reporting.
The federal rules summarized here come from the 2025 IRS publications and instructions. The IRS updates forms and publications by filing year, and the statutory codification consulted for Section 1091 is the 2022 edition. Check the edition that applies to the return you are filing and review current law before acting. State tax treatment is outside this federal comparison and may differ.
A practical decision checklist
- Is the loss in a taxable account, rather than solely inside an IRA?
- Will the realized loss offset gains, or are you relying on the limited deduction against other income?
- Have you checked 30 days before and after the sale across taxable accounts, IRAs, Roth IRAs and a spouse’s accounts?
- Are automatic reinvestments, options or contracts capable of acquiring the security?
- Can you explain why the proposed replacement is not substantially identical, or have you chosen to remain out of the position during the window?
- Will you reconcile Form 1099-B with your consolidated records before filing Form 8949 and Schedule D?
- Have you considered federal, state and investment-allocation consequences separately?
If any answer is uncertain, pause the trade until the transaction history and tax treatment are clear.
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