Crypto Wash Sale Rule in 2026: Scope, Exceptions, and Records

The federal wash-sale statute disallows certain losses from stock or securities when substantially identical stock or securities are acquired within a 61-day window. It does not state that every digital asset is covered. The correct 2026 answer therefore depends on what the asset legally is—not merely whether it appears in a crypto wallet.

Section 1091 is written for stock or securities

Internal Revenue Code section 1091 applies when stock or securities are sold at a loss and the taxpayer acquires substantially identical stock or securities during the period beginning 30 days before and ending 30 days after the sale. The loss is generally disallowed and added to the replacement property's basis, with special rules for holding period and retirement accounts.

The rule is broader than “sell today, buy tomorrow.” It can include purchases before the loss sale, contracts or options to acquire substantially identical property, purchases by a spouse or controlled corporation, and replacement shares in an IRA. Publication 550 explains that broker reporting does not determine the taxpayer's full obligation.

Why ordinary cryptoassets are not automatically wash-sale property

The IRS treats digital assets as property for federal income tax purposes. Section 1091, however, does not apply to all property; its text says stock or securities. As of September 2, 2026, there is no enacted blanket amendment in the cited statute that converts every ordinary cryptocurrency into stock or securities for this rule.

That means a spot Bitcoin or ordinary utility-token loss is not automatically disallowed solely because the taxpayer reacquired the same token within 30 days. This is not a guarantee that every token is outside section 1091, and it is not permission to ignore other doctrines. Asset classification and transaction facts remain controlling.

Tokenized securities and dual-classification assets can be covered

A digital asset can also be stock or a security. Treasury's digital-asset broker regulations expressly discuss tokenized securities that are stock or securities for section 1091 purposes. For those assets, the wash-sale analysis can apply even though the asset is recorded on a blockchain and reported on Form 1099-DA rather than Form 1099-B.

Do not treat a wrapped token, liquid staking token, or a swap into a correlated token as automatically “different enough.” The legal rights and economic transaction need analysis. Our U.S. wash-sale guide covers the broader filing context.

A controlled crypto loss-harvesting workflow

1. Confirm that the sale is real and completed, with market risk and recorded proceeds.
2. Calculate adjusted basis, fees, and holding period before relying on the loss.
3. Classify the asset: ordinary digital property, security token, ETF, contract, or business inventory.
4. Search all accounts, wallets, spouse activity, entities, and automated purchases for replacement exposure.
5. Check straddle, related-party, constructive-sale, and economic-substance issues where relevant.
6. Model the tax benefit against spread, slippage, fees, market movement, and portfolio risk.
7. Save the source and legal position used for the return year.

A transaction can be allowed under section 1091 and still be a poor investment decision. The sale resets market exposure, may change holding period, and can create a later gain if the asset is repurchased at a lower basis. Read the year-end crypto tax planning guide before executing a tax-motivated trade.

What the tax ledger must preserve

• asset identifier, contract address, and legal/economic rights;
• sale date and time, quantity, proceeds, fees, and basis;
• purchases in the 30 days before and after the sale;
• all wallets, brokers, retirement accounts, spouse and controlled-entity records where relevant;
• replacement-property basis adjustments if section 1091 applies;
• Form 1099-DA or 1099-B reconciliation and Form 8949 adjustment code;
• the official law and guidance relied on for classification.

Starting with the digital-asset broker reporting transition, a broker's basis file may not contain activity from self-custody or another platform. Taxpayer-level review is still required. See the Form 8949 guide for adjustments and the crypto-loss guide for capital-loss limitations.

Common mistakes

• “Crypto is exempt forever.” The statute or asset classification can change.
• “Every token is outside the rule.” Tokenized stock or another security can be covered.
• “The broker will catch it.” Cross-account and self-custody purchases may be invisible.
• “No wash sale means no other rule.” Straddles, related parties, business inventory, and substance still matter.
• “A loss guarantees tax savings.” Capital-loss limits and the taxpayer's overall return determine the benefit.

Frequently asked questions

Primary sources

• 26 U.S.C. § 1091: wash sales of stock or securities
• IRS Publication 550: wash-sale rules
• Treasury and IRS digital-asset broker regulations
• IRS Form 1099-B instructions: dual-classification digital assets

Legal-status review: September 2, 2026. Recheck enacted law and the asset's legal classification before each filing season.

Disclaimer: This article is for general informational purposes only and does not constitute tax advice. For individual tax advice, consult a licensed tax professional.