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1. What does the French crypto wallet reporting proposal require?
A committee of the French National Assembly has adopted an amendment that would force residents to declare crypto holdings worth €100,000 (about $112,000) or more, including coins kept in self-custody wallets. The Finance Committee approved the text on Friday, October 9. Anyone who fails to comply could face a fine of up to €10,000, roughly $11,000. The measure is not law and may still change.
The wording of the proposal is narrow in scope but broad in effect. It would be inserted into France's general tax code and would oblige holders to state what they own, with the value measured on the final day of the calendar year. The amendment carries the identifier I-CF821 and was attached to the budget bill under discussion in the lower house of parliament.
The practical target is the self-custody wallet, in which the owner alone controls the private keys that unlock the funds. Holdings on regulated centralized exchanges already sit with an intermediary that keeps records and can be asked for information by authorities. A wallet held privately has no such intermediary, which is why lawmakers focused on it.
2. Why do lawmakers want holders to declare their wallets?
According to the explanation attached to the amendment, the purpose is to combat the use of crypto as a vector for fraud. The text also argues that ownership of digital assets is underestimated, meaning that officials believe more people hold more value in crypto than tax records currently show.
That reasoning follows a familiar pattern in tax policy. When an asset class grows faster than the reporting framework around it, legislators tend to add disclosure duties so that the tax administration can see what exists and who owns it. Declaration requirements are a common first step, ahead of any decision about how a given gain or balance should be taxed.
Critics, however, do not dispute the administrative logic so much as the risk that comes with it. A register of who holds large crypto balances is, from an attacker's point of view, a list of potential victims. The dispute therefore turns less on whether the state should know about holdings and more on whether the state can keep that knowledge safe.
3. Why is the industry reacting so sharply?
Reaction from the crypto community has been intense, and much of it centers on personal safety. Some holders say the rule would endanger them by creating a record that could be stolen or leaked. The unease is heightened by a run of high-profile in-person robberies in France, often described as wrench attacks, a term for physical coercion used to make someone hand over their keys or transfer funds.
Harry Halpin, chief executive of the privacy infrastructure firm Nym, told Decrypt the idea is a bad one. He pointed to corruption among employees of the French tax authority and referred to a case in which a tax agent was accused of selling data held by the authority to criminals. In his view, France should answer to victims of crypto kidnappings, and he expects criminals to combine chain analytics with AI-driven surveillance. He recommended shielded cryptocurrency such as Zcash and the use of private VPNs.
Rand Hindi, founder of the privacy protocol Zama, went further in a post on October 12. He said government employees had sold crypto holders' tax returns to criminals and urged anyone living in France who owns crypto to leave, or else to hire personal security if departure is not possible. His blunt advice, "If you live in France and hold crypto, leave," gave the backlash its name.
Mert Mumtaz, chief executive of the Solana-based infrastructure company Helius, made a related argument. He wrote that France leads the world in crypto kidnappings and wrench attacks, and that the rule would greatly enlarge the amount of data gathered and therefore the amount that could leak. His point was about scale: every additional record held by the state is another record that can be exposed.
4. How have wrench attacks shaped the debate in France?
France has become a hotspot for crypto robberies in recent years, and the cases cited by critics are specific. In 2025, David Balland, a co-founder of the hardware wallet maker Ledger, and his wife were kidnapped from their home and held for ransom. One of Balland's fingers was severed during the ordeal.
Earlier in 2026, the wife of Sébastien Borget, a co-founder of The Sandbox, was targeted in an attempted kidnapping at the couple's home in Villenoy, in the Seine-et-Marne department. In another case, a couple in their late 50s in Versailles were forced at knifepoint to transfer $1 million in Bitcoin (BTC) to robbers who had posed as police officers.
These incidents explain why the trend is a main reason that people in the industry are reluctant to declare what they hold. For a person who has already been targeted, or who knows someone who has, the idea of placing a precise valuation in a government database feels like adding to the danger rather than reducing it. Security specialists generally treat the concealment of net worth as a basic protective measure, and a mandatory declaration cuts against that habit.
5. What else did the committee decide on crypto taxes?
The wallet declaration was not the only crypto measure the committee approved. Members also voted to treat swaps from crypto into stablecoins as taxable sales, with the change starting in January 2027. Under such a rule, exchanging a volatile token for a dollar-pegged one would count as a disposal, which can trigger a tax bill even though the holder has not moved money into a bank account.
In addition, the committee voted to extend France's exit tax to crypto held by households whose holdings exceed €800,000. An exit tax is levied on unrealized gains when a taxpayer moves their residence abroad, and applying it to digital assets would reach people who relocate in order to leave the French tax system. Taken together with the declaration duty, the amendments describe a tougher stance toward private crypto wealth.
The package also helps explain the tone of the online response. Industry figures did not simply object to a single reporting rule; they saw a set of measures that would make holdings more visible, make some trades taxable, and make departure more expensive. Whether the reaction would have been as strong without the history of kidnappings is open to doubt, but the overlap has made the proposal unusually emotive.
6. How does self-custody differ from holding crypto on an exchange?
Understanding the dispute requires understanding the distinction at its center. When a person keeps coins on a centralized exchange, the platform holds the keys on the customer's behalf, verifies the customer's identity and keeps transaction records. Tax authorities can request that information, and in many jurisdictions the platforms report to them directly.
A self-custody wallet works differently. The owner holds the private keys, typically on a hardware device or in software, and no company stands between the owner and the blockchain. Because ownership is not recorded by an intermediary, an authority cannot see the balance unless the owner volunteers it or an investigation traces it. This is precisely the feature that enthusiasts prize and that revenue officials find difficult.
The proposed declaration would address the gap by turning the owner into the reporter. Instead of relying on a platform, the state would rely on the holder's own statement of value at year-end. The design is simple, yet it also means the tax administration would assemble a list of people who keep substantial sums outside the banking system, which is the very list that critics fear could end up in the wrong hands.
7. Will the amendment become law?
Not yet, and the route ahead is uncertain. On the same day it adopted the crypto amendments, the committee rejected the entire revenue section of the budget by a vote of 31 to 3. That result carries a procedural consequence for every amendment attached to it.
When floor debate resumes, the full National Assembly will start again from the government's original text, and that text contains none of the crypto amendments. Lawmakers who want the declaration rule, the stablecoin swap tax or the exit tax extension must therefore re-table them. Until someone does so and a majority approves, the committee's work remains a signal of intent rather than a legal change.
That makes the coming days the key period to watch. If supporters bring the reporting amendment back, the debate will move from the committee room to the full chamber, where the security objections voiced by industry leaders will be tested in public. If they do not, the proposal may fade for this budget cycle, although the arguments behind it, and the objections to it, are unlikely to disappear.
8. What does the proposal mean for crypto holders in France?
For ordinary holders, nothing changes immediately, because the amendment has no legal force. The proposal does, however, show the direction in which French lawmakers are thinking: toward closing the gap between what private wallets contain and what the tax administration can observe. Anyone holding significant assets in self-custody has reason to follow the budget debate closely.
The episode also illustrates a tension that regulators in many countries face. Authorities want visibility into assets that can be moved without an intermediary, while holders fear that any central record will become a target. The strength of the French reaction suggests that how data is protected will matter as much as what data is collected, and that rules which ignore this point are likely to meet organized resistance.