Lost or Stolen Crypto: Are Losses Deductible in 2026?

Losing crypto to a hack, scam, or misplaced wallet is painful enough on its own. The tax question that follows only makes it worse: can you actually deduct that loss? The answer depends on how the loss happened, whether the Tax Cuts and Jobs Act (TCJA) casualty loss suspension still applies, and how you document everything. In this guide, we break down every scenario so you can determine what (if anything) is deductible on your 2026 return.

Hacked Crypto and the TCJA Theft Loss Suspension

If your exchange account or DeFi wallet was hacked, your first instinct might be to claim a theft loss. Under normal rules, theft losses are deductible as itemized deductions on Schedule A. But the TCJA changed the game starting in 2018.

From 2018 through 2025, personal casualty and theft losses were only deductible if they resulted from a federally declared disaster. A crypto hack does not qualify. That means victims of exchange breaches, phishing attacks, and SIM-swap thefts have had no path to a theft loss deduction for years.

If Congress allows the TCJA provisions to expire as originally scheduled, theft loss deductions could return for the 2026 tax year. That would reopen the door for crypto hack victims to claim deductions under IRC Section 165(e). However, several proposals in Congress would extend or make permanent various TCJA provisions. The situation remains fluid.

Even if theft losses become deductible again, you would still need to prove the theft occurred and substantiate the fair market value of what was stolen. The burden of proof rests entirely on you as the taxpayer.

Scams, Rug Pulls, and Fraud

Rug pulls and crypto scams occupy a gray area between theft and bad investments. The tax treatment depends on the facts.

If fraud can be proven. When a token creator intentionally deceives investors and disappears with funds, this may qualify as theft under state or federal law. If the TCJA theft loss suspension has expired, you could potentially claim a theft loss deduction. You would need evidence of fraudulent intent, such as a lawsuit filing, SEC enforcement action, or law enforcement investigation.

If fraud cannot be proven. Many tokens simply fail. The founders may have been incompetent rather than criminal. In these cases, the loss is more likely treated as a capital loss from a worthless investment (covered in the next section) rather than a theft.

The line between a scam and a failed project matters for your taxes. Theft requires criminal intent. A bad investment is just a bad investment.

For victims of high-profile fraud cases (think FTX or similar collapses), the IRS has occasionally issued specific guidance. Always check whether your situation falls under any special IRS notices or revenue rulings before choosing a reporting strategy.

Worthless Tokens and the Abandonment Strategy

Here is where many crypto holders find their best option. If a token has dropped to zero (or near zero) with no functioning market, no development team, and no realistic chance of recovery, you may be able to claim an abandonment loss.

Under IRC Section 165(a), a taxpayer can deduct a loss from property that becomes worthless. For crypto, this means demonstrating that your tokens have:

• No trading volume on any exchange
• No active development or team behind the project
• No reasonable expectation of future value

When you claim worthlessness, you report the loss on Form 8949 as if you sold the asset for $0 on the date it became worthless. Your cost basis becomes your capital loss.

Example: Claiming an Abandonment Loss

For more on offsetting gains with losses, see our guide on crypto tax loss harvesting and the 2026 wash sale rules.

Lost Wallet Keys and Inaccessible Crypto

Losing your private keys creates a unique situation. The crypto still exists on the blockchain, but you can never access it. Can you deduct this?

The IRS has not issued definitive guidance on lost key scenarios. However, most tax professionals treat permanently inaccessible crypto similarly to worthless property. The key word is permanently. If there is any possibility of recovering access (through a seed phrase backup, a hardware wallet recovery service, or similar means), the IRS would argue the asset is not truly lost.

To support a deduction for lost keys, you should document:

1. What happened. A detailed written account of how the keys were lost (hardware failure, accidental deletion, corrupted backup).
2. Recovery attempts. Evidence that you tried professional recovery services and they confirmed the keys are unrecoverable.
3. Wallet address. The public address showing the crypto is still sitting there, untouched.
4. Original purchase records. Proof of your cost basis, including exchange statements and transaction records.

If you can demonstrate that recovery is impossible, you may claim the crypto as worthless and report it on Form 8949 just like the abandonment scenario described above.

TCJA Expiration Timeline: What Changes in 2026?

The TCJA’s casualty and theft loss suspension was originally set to expire after December 31, 2025. Here is what that could mean for crypto holders.

Regardless of what happens with the TCJA, abandonment and worthlessness deductions remain available. These fall under the general loss provisions of IRC Section 165, not the casualty/theft rules.

Documentation Requirements

The IRS expects thorough documentation for any crypto loss deduction. Missing records are the most common reason these deductions get denied on audit. Keep the following for every loss you plan to claim.

For stolen or hacked crypto:

• Police report or IC3 (FBI) complaint filing
• Exchange communications confirming the breach
• Transaction records showing the unauthorized transfer
• Screenshots of the hacker’s wallet address
• Fair market value of the stolen crypto on the date of theft
• Any insurance claim or reimbursement documentation

For worthless or abandoned tokens:

• Evidence the project is dead (archived website screenshots, deleted social media)
• Exchange delisting notices
• Trading volume data showing zero activity
• Your original purchase records and cost basis
• Burn transaction hash (if you sent tokens to a burn address)
• Written statement explaining why the tokens are worthless

For lost keys:

• Written account of how the keys were lost
• Professional recovery service reports confirming unrecoverability
• Blockchain explorer screenshots showing the wallet address and balance
• Original purchase records

How to Report Crypto Losses on Form 8949

Whether you are claiming an abandonment loss or (if the TCJA suspension has expired) a theft loss, the reporting mechanics matter.

Abandonment / Worthlessness losses are reported on Form 8949, Part I (short-term) or Part II (long-term), depending on your holding period. Enter:

• Column (a): Description of property (e.g., “10,000 XYZ tokens, worthless”)
• Column (b): Date acquired
• Column (c): Date sold or disposed (the date you determined worthlessness or sent to a burn address)
• Column (d): Proceeds, enter $0
• Column (e): Cost or other basis
• Column (h): Loss amount

The totals flow to Schedule D, where capital losses offset capital gains. Net capital losses exceeding your gains are deductible up to $3,000 per year ($1,500 if married filing separately), with the remainder carried forward.

Theft losses (if deductible) are reported on Form 4684 and flow to Schedule A as an itemized deduction. This is a different path than capital losses and has its own set of limitations.

If you received any IRS letters about your crypto activity, make sure your loss reporting is consistent with what the IRS already knows about your holdings.

Insurance Recovery and Exchange Reimbursements

If your exchange was hacked and later reimbursed you (fully or partially), the reimbursement reduces your deductible loss. Some important points:

• Full reimbursement means no deductible loss exists. You were made whole.
• Partial reimbursement means you can only deduct the unreimbursed portion.
• Pending insurance claims complicate timing. You generally cannot claim a deduction for losses you have a reasonable expectation of recovering.
• Reimbursement in a later year. If you claimed a loss and later receive reimbursement, you may need to report the recovery as income in the year received.

Some exchanges offer insurance on custodial balances. If you have coverage, exhaust the insurance process before claiming a tax deduction. The IRS will question a theft loss deduction if insurance was available and you did not file a claim.

Special Considerations for Gambling and Sweepstakes Tokens

Some lost tokens were acquired through crypto gambling or sweepstakes platforms. These losses may follow different rules. For more on how gambling-related crypto is taxed, see our guide on crypto gambling and sweepstakes taxes in 2026.

Bottom Line: What to Do Next

Losing crypto is frustrating. The tax rules make it more so. Here is your action plan:

1. Determine the type of loss. Hack, scam, worthless token, or lost keys. Each has a different path.
2. Check the current TCJA status. Confirm whether the casualty/theft loss suspension has been extended into 2026.
3. Gather your documentation. The more evidence you have, the stronger your position.
4. Consider the abandonment strategy. For worthless tokens, this is often the most straightforward deduction available regardless of TCJA status.
5. Talk to a crypto tax specialist. These situations are fact-specific. A CPA who understands crypto can save you thousands.

At CountOnSheep, we help crypto holders handle exactly these situations. Whether you need help documenting a loss, filing Form 8949, or figuring out whether a deduction is available for your circumstances, our team has the expertise.

Schedule a consultation or learn more about our crypto accounting services.