Crypto Lost Key Tax Guide for Loss Deduction (2026)
Claim crypto lost key deduction: abandoned wallet, proof of loss, casualty deduction, and cryptocurrency loss tax treatment.
Summary
Lost keys may qualify for deduction. This guide explains abandoned wallet treatment, proof requirements, and claiming.
Key Steps
- 1Understand situation: lost private key means crypto inaccessible.
- 2Document loss: wallet address, date acquired, amount, loss date.
- 3Prove abandonment: reasonable efforts to recover, documented attempts.
- 4Casualty deduction: may qualify as theft or casualty loss.
- 5Consult professional: lost crypto deduction complex, IRS guidance unclear.