Crypto Wallets: Mandatory Declaration Adopted for Amounts Exceeding €100,000

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9 Oct 2026Marc-Antoine Caen Poletti

The Amendment is Adopted by the Finance Committee

A threat to security? The Finance Committee of the National Assembly has adopted amendment I-CF 821, submitted by MP Charles de Courson (LIOT group) after Article 32 of the finance bill. The text establishes a mandatory declaration to the tax administration for self-hosted crypto-asset wallets valued over €100,000.

In case of non-declaration, offenders face a fine of up to €10,000. The rationale is based on statistical findings. According to the report from the inquiry committee on the taxation of high wealth, the crypto gains realized in 2021 amounted to €3.5 billion, while only €400 million in assets held were declared to the DGFiP in the same year.

Parliamentary Debates Without Mention of Security Risks

During the review, Philippe Juvin, the committee rapporteur, praised the initiative as "full of wisdom." MP Nicolas Sansu also intervened to support the vote. "Of course, I will vote for Charles de Courson's amendment. But I want to remind our learned assembly that we had voted for an amendment that required the declaration of self-hosted wallets starting from €5,000, as part of our anti-fraud plan [amendment later abandoned in the mixed parliamentary committee, ed.].

"€100,000 seems high to me," he acknowledged. "But we have to start somewhere." A crucial point remains absent from these debates. The security risk, which is the main source of tension within the French ecosystem, was not mentioned by the parliamentarians.

An Explosive Security Context for Crypto Holders

The adoption of this measure comes in a particularly tense climate. France has recorded nearly a hundred violent attacks targeting cryptocurrency holders, often involving kidnapping, torture, and extortion from self-hosted wallets. This phenomenon, dubbed "cryptokidnappings," has led MP Paul Midy to submit a bill dedicated to protecting entrepreneurs in the sector.

The creation of a file centralizing holders of wallets over €100,000 raises legitimate concerns. In 2025, a tax agent from Bobigny was jailed after consulting tax software on behalf of a sponsor targeting crypto investors, according to reports from Le Parisien. A precedent that fuels fears of a data leak with dramatic consequences, similar to what the physical gold sector recently experienced.

Other Amendments of the Day

Other amendments related to crypto-assets were examined in the wake. Two texts proposed by Paul Midy (EPR) were rejected. Amendment I-CF 1564 aimed to exempt the transfer of crypto-assets used for the purchase of goods or services when their annual cumulative amount remains below €1,000.

Amendment I-CF 1553 proposed to allow the offsetting of crypto losses over ten years, in order to align their tax regime with that of securities. A similar amendment proposed by MP Daniel Labaronne had already been adopted the day before, attached to Article 3 (amendment I-CF 798).

Meanwhile, amendment I-CF 1756 by Christine Arrighi (ECO) was adopted. It raises the fine applicable in case of refusal to provide tax documents from €10,000 to €50,000 per request, particularly for financial institutions and platform operators.

These measures still need to be confirmed during the examination of the finance bill in a public session at the National Assembly, and then in the Senate. For French holders of crypto-assets, the stakes go far beyond just the tax issue.