Crypto Loss Tax Deduction: Sales, Worthlessness, Theft and Carryovers

A lower token price is not yet a tax deduction. Most investor losses require a completed sale or exchange, while worthless tokens, abandonment, theft, scams and frozen exchange claims follow different rules. This guide identifies the event, character, amount and form before calling a loss deductible.

Reviewed September 1, 2026. The 2026 discussion reflects the reinstated section 67 two-percent miscellaneous-itemized-deduction framework described in current IRS training material. Loss law is fact-sensitive; verify the final 2026 forms and instructions when filing.

When does a market loss become a tax loss?

For an investor holding crypto as a capital asset, a sale or exchange ordinarily closes the position. Gain or loss equals amount realized minus adjusted basis. Selling for dollars, swapping for another materially different digital asset, paying for goods or transferring the asset in another taxable disposition can realize the result.

A price drop in an asset the taxpayer still owns is not a completed transaction. Screenshots showing a 90% decline do not establish a deductible loss. The IRS Publication 550 explains that digital assets held for investment are capital assets and generally go through Form 8949 and Schedule D when sold or exchanged.

Fees can affect amount realized or basis under the digital-asset transaction-cost rules. Preserve the exact units, lot, timestamp, proceeds and fee asset rather than deducting a portfolio's peak-to-trough decline.

Capital-loss netting and the $3,000 deduction

Short-term gains and losses are netted, long-term gains and losses are netted, and the results are combined on Schedule D. A net capital loss first offsets capital gains. If an individual's losses still exceed gains, the annual deduction against other income is generally the lesser of the net loss or $3,000—$1,500 for married filing separately.

The $3,000 amount is not the maximum loss that can be reported and is not applied per token. A taxpayer with $40,000 of gains and $55,000 of losses has a $15,000 net capital loss before the annual other-income limit. See the US crypto capital-gains guide for short- and long-term classification.

How capital-loss carryovers work

Unused net capital loss generally carries forward until absorbed. It keeps its short- or long-term character, and the current-year allowed deduction is taken into account when calculating the carryover even if the taxpayer failed to claim it.

Reconstructing a carryover requires every intervening Schedule D and Capital Loss Carryover Worksheet. Do not copy the prior year's Schedule D line 16 without applying taxable-income limitations. A decedent's unused personal capital loss does not pass to the estate or beneficiaries.

Do wash-sale rules apply to crypto in 2026?

Section 1091 applies to stock or securities. Ordinary fungible cryptocurrency treated only as property is generally outside the statutory wash-sale rule, so selling BTC at a loss and repurchasing BTC is not automatically disallowed by section 1091 under current law.

That statement is not universal. Tokenized stock or another digital asset that is itself stock or a security can fall within the rule. Options or contracts to acquire stock or securities can also be covered. Related-party loss rules, straddles, economic-substance principles and non-bona-fide sales remain relevant.

Even without a wash-sale disallowance, an immediate repurchase starts a new holding period and basis. Record both transactions. The US crypto tax-loss harvesting guide covers portfolio implementation.

Worthless tokens and abandonment

A token trading near zero is not necessarily worthless. IRS Chief Counsel Advice 202302011 considered cryptocurrency that still traded above zero and concluded that a mere decline did not establish a loss. The memorandum also found no abandonment where the taxpayer retained the units and took no affirmative act. Read the official CCA 202302011; it is not precedent, but it illustrates the evidence problem.

Cryptocurrency is not automatically a “security” under section 165(g), so the special last-day deemed-sale rule for worthless securities cannot simply be imported. A genuinely worthless or abandoned investment can instead raise section 165 and miscellaneous-itemized-deduction questions.

For 2026, section 67's two-percent miscellaneous itemized deduction framework has returned under current law. That does not make every dead token deductible: the taxpayer still needs a closed, identifiable event, ownership and basis, correct character, itemization and the applicable limitation. Burning tokens, sending to an inaccessible address or renouncing a protocol claim can have uncertain legal effect and should not be done solely from a software prompt.

Hacks, theft and scams are not all the same

A theft loss requires conduct that qualifies as theft under the applicable law, a profit-motivated transaction where relevant, no reimbursement, and no reasonable prospect of recovery for the claimed year. Losing a key, sending tokens to a wrong address, paying a fraudulent investment promoter and having a wallet hacked can produce different analyses.

Some investment theft losses are reported through Form 4684 and can have ordinary character, but casualty and personal-use limits differ. Claims against an exchange, insurer, bankruptcy estate or perpetrator can postpone the loss until recovery prospects are resolved. Use IRS Publication 547 and document the local-law theft elements.

Frozen accounts and exchange bankruptcy claims

An inaccessible exchange balance is not automatically a loss while the customer retains a claim and recovery is unresolved. A bankruptcy distribution, claim sale, settlement or final cancellation can create an identifiable event, but the asset surrendered and property received must be valued.

Zero basis should not be inserted merely because the exchange did not report basis. Reconcile original deposits, purchases, withdrawals, claim units and recoveries. The crypto exchange bankruptcy loss guide provides the detailed workflow.

Investment loss versus business loss

Forming an LLC or trading frequently does not transform capital investment property into inventory or an ordinary business asset. Dealers, miners, service businesses and investors can have different character depending on how the property is held and used.

Business bad debts, inventory losses, section 1231 property and net operating losses follow separate rules. The taxpayer must support a genuine trade or business, business purpose and asset classification before using Schedule C or Form 4797 instead of Form 8949.

Crypto loss review workflow

1. Identify the legal event: sale, swap, theft, abandonment, claim settlement or continuing ownership.
2. Confirm ownership, units, adjusted basis and any reimbursement.
3. Determine investment, personal, business, debt, security or derivative character.
4. Fix the tax year using the transaction date, worthlessness event or recovery-prospect evidence.
5. Calculate proceeds and fees in US dollars.
6. Apply short-/long-term netting, section 1091 where relevant and carryovers.
7. Map the result to Form 8949, Form 4684, Form 4797 or another supported form.

Evidence to retain

• acquisition and basis records;
• transaction IDs and exchange confirmations;
• market data for proceeds and fee assets;
• police, platform, insurer and bankruptcy correspondence;
• proof of recovery prospects and final settlements;
• abandonment or worthlessness evidence; and
• prior Schedules D and carryover worksheets.

Use the crypto tax records checklist. The date and character of a loss often matter more than the headline dollar amount.

Crypto loss deduction FAQ

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