Crypto-assets can lawfully form part of the funding for a property purchase in France. They also create a specific risk: an apparently sophisticated payment route may involve an unregulated provider, a false intermediary or instructions that cannot be reversed.
For an international buyer, the risk is not limited to losing crypto-assets. A failed or fraudulent conversion arrangement can prevent completion, place a deposit at risk and make it impossible to provide the notary with a satisfactory source-of-funds file.
The right time to check the transaction is before making a binding offer or signing a compromis de vente.
“Crypto payment” is usually a conversion process, not a direct payment to the seller
In a properly structured French purchase, the seller is generally paid in euros. The buyer’s crypto-assets are reviewed and converted into euros by an authorised provider; the euro proceeds then enter the banking and notarial circuit.
This means that several parties must be aligned before the transaction can proceed:
- the buyer and, where relevant, their financial adviser;
- the authorised crypto-asset service provider;
- the bank able to receive the euro proceeds;
- the notary in charge of the conveyance; and
- the estate agent and seller, where the timetable or the preliminary agreement needs to reflect the funding route.
An estate agency can introduce a buyer to a service, but it should not itself receive, hold or convert the crypto-assets unless it is authorised to do so.
Verify the provider’s authorisation
Since 1 July 2026, crypto-asset services in France must be provided under the European MiCA framework by an authorised crypto-asset service provider (CASP; PSCA in French). Former French PSANs without MiCA authorisation were automatically deregistered on 2 July 2026.
Before transferring assets, the buyer should verify both the identity of the provider and the services it is authorised to provide. The relevant information can be checked on the AMF register of crypto-asset service providers.
A credible website, a professional-looking presentation or a referral from an intermediary is not a substitute for that verification.
Warning signs before any crypto transfer
The French Financial Markets Authority regularly warns investors about fraud involving unauthorised actors, impersonation and promises that are difficult to verify. In the context of a property purchase, particular caution is required where:
- the buyer is asked to transfer crypto-assets to a wallet before knowing who legally controls it;
- instructions are given only through messaging applications or from a newly created email address;
- the proposed provider cannot be identified on the relevant official register;
- the buyer is pressured to act immediately because of an alleged exchange-rate opportunity or an urgent completion date;
- a third party requests an additional payment to “unlock”, “validate” or “release” the conversion;
- the property seller, notary or bank has not been informed of the proposed route; or
- the euro destination account and the conversion documentation are unclear.
Crypto transfers are often irreversible. An error at this stage can be far more serious than a delay in a conventional bank transfer.
Do not sign the preliminary sale agreement on an assumption
The buyer should not sign a binding preliminary agreement merely because a platform says that conversion will be possible. The legal and compliance position needs to be checked in advance.
The preliminary agreement should reflect the actual transaction: the price in euros, the time required for source-of-funds checks and conversion, the allocation of fees and exchange-rate risk, and the consequences of a refusal by the provider, bank or notary.
There is no single clause that is appropriate for every transaction. The wording must depend on the property, the parties, the available evidence and the agreed funding route.
Build a source-of-funds file before completion
The notary and the bank may need to understand both how the buyer acquired the underlying wealth and how the crypto-assets reached the proposed conversion stage. A wallet balance alone is generally insufficient.
The file may include bank statements showing the original purchases, exchange statements, wallet addresses and transaction identifiers, proof of income or business proceeds, inheritance or gift documents, and an explanation of significant transfers between wallets or platforms.
For foreign buyers, additional issues can arise where assets have moved through several jurisdictions or documents must be translated. The file should be prepared early, not assembled in response to a last-minute request.
The role of the lawyer
The lawyer does not hold, trade or convert crypto-assets. The role is to protect the legal framework of the acquisition.
The firm can assist foreign buyers and non-residents by reviewing the proposed transaction before signature, organising the source-of-funds documentation, checking the role of the proposed provider, reviewing the preliminary agreement and coordinating exchanges with the notary, bank and authorised provider.
This legal review does not replace each professional’s independent compliance checks and does not guarantee acceptance of the funds. It allows the buyer to identify material obstacles before taking an irreversible step or entering into a binding property commitment.
Request a crypto property pre-check
If you plan to buy property in France using wealth held in crypto-assets, obtain a legal pre-check before making an offer. The firm can assess the proposed route, identify the documents needed for the source-of-funds file and coordinate the transaction with the relevant French professionals.