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Defense During a Crypto Tax Audit

Defense during a crypto tax audit

In the event of a crypto tax audit, defense must be both legally rigorous and technically precise regarding transaction analysis. ORWL_ leverages its dual expertise to represent corporations and individuals before tax authorities and courts.

For several years, tax authorities have been intensifying audits related to crypto-assets. Whether for individual investors or industry players, these audits can take the form of a personal tax situation examination (ESFP), a crypto accounting audit, or even a tax raid authorized by a judicial order.

These procedures expose taxpayers to heavy assessments: back taxes, late interest, penalties, and even criminal sanctions. In this context, the support of a professional during a crypto tax audit is essential to defend your rights and mitigate risks.

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What is a crypto tax audit?

A crypto tax audit is a procedure through which the tax administration verifies the compliance of a taxpayer’s declarations—individual or corporate—regarding digital asset operations. This procedure, essential in a self-assessment tax system, follows strictly codified rules designed to protect taxpayer rights while allowing the administration to fulfill its oversight mission. Crypto tax audits present specific challenges, particularly regarding the legal characterization of operations, the identification of applicable tax regimes, and the complexity of tracing flows.

Crypto tax audits for individuals

For individuals, audits primarily focus on:

  • Reporting of capital gains from the sale of cryptocurrencies or tokens, taxable under the Flat Tax (PFU) or, by election, the progressive income tax scale (notably when resulting from debit card payments linked to undisclosed foreign accounts);
  • The mandatory disclosure of digital asset accounts held on foreign platforms (Kraken, Coinbase, etc.);
  • Income derived from various crypto operations: staking, lending, mining, airdrops, play-to-earn, NFT creation and sales, etc.

Crypto Tax Audits for Corporations

For companies, verifications specifically concern:

  • VAT liability for various operations (crypto-asset services, marketplaces with opaque or transparent intermediation, staking or mining operations, etc.), the exercise of input tax recovery, and liability for payroll taxes;
  • Corporate Income Tax (CIT) treatment of various crypto-asset inflows (proceeds from token/NFT issuances, crypto payments, etc.) or financial operations (market making, collateralized loans, lending, staking, mining, etc.);
  • Permanent Establishment (PE) risks in France for foreign companies operating in the national market without local tax registration (which may trigger search and seizure procedures/tax raids).

Why hire a tax attorney for a crypto tax audit?

A crypto tax audit requires a structured and controlled approach. The intervention of a specialized lawyer allows you to:

  • Define a strategy following a preliminary audit: Assessing risks, choosing between voluntary disclosure, targeted discussion, or selective document communication to maintain control over the procedure and avoid self-incrimination.
  • Provide clear technical education: Translating the technical mechanisms of crypto-assets (staking, NFTs, DAOs) into language understandable to auditors to ensure the recognition of correct legal characterizations.
  • Verify procedural accuracy: Monitoring the lawfulness of procedural acts and the accuracy of the calculations used for assessments (which often contain approximations and errors).
  • Mediate exchanges: Depersonalizing the discussion to favor a pragmatic approach with the administration.
  • Anticipate collection and litigation: Preparing an effective defense during the audit for potential reassessments and, if necessary, before tax courts.

Our methodology in crypto tax audits

Each crypto tax audit requires a methodical approach tailored to the taxpayer’s profile and risks. Our intervention follows a structured path:

  • Preliminary Audit: Reconstituting on-chain flows, analyzing reporting obligations (capital gains, foreign accounts), and identifying assessment risks.
  • Defense Strategy: Defining the strategy during the audit.
  • Operational Support: Assistance during meetings and drafting written responses to administrative requests.
  • Pre-litigation: Reviewing the notice of assessment (proposition de rectification) for procedural regularity and merit, and managing pre-litigation appeals.
  • Crypto Tax Litigation: Preparing financial and legal arguments and representing clients before administrative and judicial courts.

This method is backed by over eight years of concrete experience in crypto taxation:

  • Obtained numerous tax rulings reflecting the administration’s position on diverse topics (token-based remuneration, VAT and CIT for token/NFT issuances, marketplace intermediation status, professional vs. non-professional trading status, etc.);
  • Assistance in diverse crypto tax audits (challenging tax residency, rectifying undisclosed capital gains involving millions of euros, VAT and CIT reassessments for NFT projects, taxation of undisclosed content creator activities, etc.).

Frequently Asked Questions (FAQs) related to crypto tax audits

It begins with a notification: a personal tax examination for individuals or a crypto accounting audit for companies. The taxpayer must provide supporting documents (exchange statements, on-chain history, foreign account disclosures, accounting records). A series of oral and written exchanges occur over several months. If an adjustment is made, the audit ends with a notice of assessment detailing the legal and factual grounds and the amounts due. In some cases (contrôle sur pièce), the notice is sent directly after an internal consistency check.

The administration expects precise evidence: bank statements, on-chain histories, exchange exports (Binance, Kraken, Coinbase, etc.), proof of foreign account reporting (Form 3916-bis), contracts, and platform Terms of Use. Companies must also produce accounting records justifying their VAT treatment.

A reassessment may trigger the payment of the evaded tax plus:

  • Late interest (0.20% per month);
  • Penalties (10% to 40% for deliberate breach, up to 80% for fraud);
  • Specific fines for failure to report foreign accounts (up to €1,500 per account). In some cases, it is possible to obtain a remission of these penalties. Serious cases may lead to criminal prosecution for tax fraud.

Yes. Upon suspicion of fraud, a judge may authorize a search and seizure operation. Agents can seize documents, computers, hardware wallets, or servers. These operations are strictly regulated and can be challenged in court. They are common in investigations regarding undeclared Permanent Establishments.

Yes. Contestation can target procedural regularity (incomplete notification, irregular search warrant, missed deadlines), the legal basis of the reassessments, or the calculations themselves. Taxpayers can file a formal complaint with the administration and initiate tax litigation.

The tax becomes due after the pre-litigation phase (which lasts 1 to 12 months on average). However, if litigation continues in court, taxpayers can request a stay of payment (sursis de paiement), meaning the tax is only due after a tribunal decision (1 to 3 years on average). If the adjustment is accepted, payment plans or installments can be negotiated with the public accountant.

Fees depend on complexity, transaction volume, and duration. Assistance can be a flat fee (initial audit and strategy) or hourly billing for full follow-up and litigation. At ORWL_, fees are set transparently from the start.

Contact us in the event of a crypto tax audit