Lost or Stolen Cryptocurrency — Write-Off
Writing off the carrying value of cryptocurrency that has been stolen, lost through a hack, or sent to an inaccessible address.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Loss on Stolen/Lost Cryptocurrency | Expense (+) | 450,000.00 | - |
| Cryptocurrency Asset | Asset (-) | - | 450,000.00 |
💡 Accountant's Note
Cryptocurrency that is provably lost (sent to a null address, irreversible transaction error) or stolen (exchange hack, wallet compromise) is written off at its carrying value. The loss is recognised when there is certainty that the asset is irrecoverable. Insurance recovery is a separate asset recognised only when virtually certain. Cryptocurrency theft losses are not rare in the industry.
Practitioner & Systems Framework
💻 ERP Architecture
Cryptocurrency losses are recognised when it is established that recovery is not possible. For stolen cryptocurrency (exchange hack, phishing attack, smart contract exploit), the loss is recognised when the hack is confirmed and the funds are unrecoverable (typically within days of the incident). For mistaken transactions (sent to wrong address, lost private key), recognition is at the point the irrecoverability is confirmed. The write-off is posted at the carrying value (which may be lower than the market value if previously impaired). Insurance claims (if the company has crime or cyber insurance covering cryptocurrency theft) are recognised separately as a receivable when the insurer acknowledges the claim and recovery is virtually certain.
⚠️ Audit Flags
Auditors require on-chain proof of the theft or loss — the blockchain transaction showing the asset leaving the company's wallet without authorisation. For exchange hacks, obtain the exchange's incident report and blockchain forensic analysis. Test that the loss is recognised promptly (not deferred). Assess cybersecurity controls that allowed the theft — control deficiencies are a going-concern consideration for crypto-native companies. Confirm insurance recovery recognition only when the insurer has accepted the claim. Review whether the theft triggers regulatory reporting obligations.
📄 Required Documentation
Blockchain transaction record showing the unauthorized transfer, cybersecurity incident report, law enforcement report (if filed), insurance claim submission, insurer's acknowledgement of claim (for recovery recognition), cybersecurity forensics report, write-off journal at carrying value, and regulatory notification records.
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