Key points
- In France, the Conseil d’État (French Supreme Administrative Court) classifies bitcoin as intangible movable property; it is not legal tender and accepting it as payment depends on the agreement of the parties.
- Drawing up a written contract specifying the wallet address, the payment terms and a refund clause clarifies the transaction and how it can be proven.
- The public blockchain provides reliable traceability, but linking the transaction to the identity of the parties strengthens the evidential value of the payment.
- A prior exchange of cryptographically signed messages makes it possible to link the wallet holder unambiguously to the agreement concluded.
- Before accepting a payment, you should check the origin of the funds and the legitimacy of the counterparty to prevent fraud and money laundering.
- Wallet security relies on secure storage, strong passwords and strong authentication, which should be documented to limit challenges.
Bitcoin payment opens up new possibilities, but it raises major issues in terms of bitcoin wallet security and legal protection. Using crypto-assets calls for greater vigilance over contractual validity and the risks of fraud or theft inherent in this type of transaction. Understanding the mechanisms that contribute to the legal soundness of the payment is essential to limit disputes, particularly when goods or services are acquired through a bitcoin wallet.
The contractual foundations of a bitcoin payment
The legal status of bitcoin is the foundation of any transaction. The Conseil d’État has held that bitcoin units are intangible movable property (Conseil d’État, 26 April 2018, No. 417809). Bitcoin is not legal tender: the currency of France is the euro (Article L. 111-1 of the French Monetary and Financial Code (CMF) (in French)). No one is therefore obliged to accept a payment in bitcoin, which depends on the agreement of the parties within the framework of civil and commercial obligations. Before any payment, each party must set out precisely the terms of the transaction in order to prevent any dispute over the amount, the reality of the transfer or the reciprocal commitments.
Adopting a written contract clarifies expectations and provides traceability of transactions. It is advisable to set out in the contract the exact address of the bitcoin wallet used, the payment terms and any refund clause if the service provided is void. These formalities help remove uncertainty about proof of the payment made and strengthen the legal certainty of the transaction.
How do you prove a bitcoin payment?
The public blockchain provides reliable traceability thanks to the permanent recording of transactions. However, strengthening the evidential value requires linking the transaction to the identity of the parties. The contract then not only states each party’s bitcoin wallet address but also provides for strong authentication through a prior exchange of cryptographically signed messages. This step makes it possible to link the wallet holder unambiguously to the agreement concluded.
To be assisted in these steps, many users and businesses turn to a bitcoin lawyer (in French) who can provide an audit, advice and a framework for the contractual process when a cryptocurrency payment between partners is being considered.
In the event of a dispute, gathering a copy of the contract, the history of electronic exchanges and the blockchain extract evidencing the transaction makes it easier for a court to recognise the bitcoin payment. If necessary, an expert can attest that the recorded transaction matches the service concerned, thereby strengthening the legal protection of the evidence.
What precautions should you take before accepting a bitcoin payment in France?
To limit the risk of fraud, you should check the origin of the funds and the legitimacy of the counterparty. It is advisable to implement due diligence procedures: identity checks, a request for information on the originating bitcoin wallet, and retention of the supporting documents needed for reporting obligations. These measures help prevent money laundering and serve as supporting evidence before a tax or judicial authority.
Bitcoin wallet security proves decisive. Holding the crypto-assets received as payment requires secure storage, based on strong authentication tools such as strong passwords or multi-factor authentication. Documenting these steps limits the risk of a later challenge to the robustness of the security arrangements adopted.
The practical implications of legal protection
Beyond drafting a rigorous contract, the day-to-day handling of a bitcoin payment requires suitable technical and organisational measures. The transition from receiving the funds to placing them in secure storage determines how well the system resists any attempt at fraud or theft. To strengthen the security of crypto-assets, each step deserves particular attention, whether on receipt or during long-term holding in a personal or business bitcoin wallet.
Regulatory compliance is also central. For an individual, the reporting obligations relating to crypto-assets cover in particular accounts opened, held, used or closed abroad (Article 1649 bis C of the French Tax Code (CGI) (in French)) and capital gains on disposal (Article 150 VH bis of the CGI (in French)). Transparency towards third parties such as banks or statutory auditors also requires each movement to be documented precisely.
How can you avoid the risks of fraud or theft?
Combating fraud starts with caution in choosing business partners. Checking their reputation, asking for evidence of a positive track record or requesting additional guarantees can deter any fraudulent attempt. Some parties provide for the bitcoin payment to be held temporarily in escrow by a trusted third party until the reciprocal obligations have been fully performed.
On the technical side, bitcoin wallet security involves using dedicated devices (cold wallets), regularly changing access passwords and keeping different types of digital assets separate. Any flaw in this arrangement exposes the owner to irreversible losses if the funds are stolen following a cyberattack or human negligence.
What is the lawyer’s role in structuring bitcoin payments?
The involvement of a lawyer is useful from the contract negotiation stage. The lawyer ensures that balanced clauses are chosen on delivery, settlement and the possible resolution of disputes. Their expertise also covers the organisation of evidence, in order to strengthen the probative value of the items provided in the event of a future challenge.
The lawyer takes part in the audit of the security arrangements, advises on setting up strong authentication solutions and assists with reporting to the competent authorities. Their knowledge of legal obligations and up-to-date case law makes it possible to anticipate any difficulty relating to the legal protection of the bitcoin payment.
Anticipating changes to the regulatory framework
French and European law applicable to crypto-assets changes frequently. Keeping track of these changes remains essential to adapt your practices and keep bitcoin payment transactions compliant. The gradual tightening of KYC (know your customer) requirements and the increased accountability of platforms contribute to cleaning up the sector, while increasing the due diligence required of acquirers and issuers.
Building the monitoring of these future obligations into the contractual protocol helps minimise exposure to the risk of penalties or disputes. Active legal monitoring makes it possible to adjust secure storage tools and arrangements for accepting bitcoin payments within a controlled legal framework.
For assistance: crypto-asset lawyer.
