French lawmakers have advanced a proposal that would mandate the disclosure of cryptocurrency wallets holding €100,000 or more. The measure, aimed at tightening tax oversight on large crypto holders, could push some investors to rethink their strategies — or their address. It's the latest sign that European governments are treating digital assets less like a fringe curiosity and more like taxable property.
What the proposal actually says
The rule would require individuals to declare wallets above the €100,000 threshold. That's not an annual income figure — it's a snapshot of holdings. The goal is straightforward: give tax authorities a clearer picture of who's sitting on serious crypto wealth. Right now, that visibility is patchy at best. Self-custody wallets don't report to anyone, and while exchanges operating in France already share some data under EU rules, a personal wallet with a seven-figure balance can stay invisible if the owner doesn't volunteer it.
The proposal doesn't spell out penalties or enforcement mechanisms, at least not in the version advanced so far. But the direction is clear. France has been steadily tightening its crypto tax regime, and this is the logical next step — moving from transaction reporting to balance reporting.
Why large holders are the target
Small retail traders aren't the concern here. The €100,000 floor is high enough to filter out casual users and low enough to catch serious investors. From a tax authority's perspective, that's the sweet spot. A wallet with that kind of balance generates meaningful capital gains over time, and if those gains go undeclared, the state loses real revenue.
There's also a compliance angle. France has pushed hard to bring crypto service providers under its regulatory umbrella. But self-custody has always been the leak in the system. This proposal tries to patch it — not by banning self-custody, but by making large holders identify themselves.
What it could change for investors
Disclosure rules like this tend to have second-order effects. For some holders, declaring a €100,000 wallet is no big deal — they're already compliant and paying taxes on gains. For others, especially those who've kept assets off exchanges for privacy or ideological reasons, the calculation changes. Do you disclose and accept the scrutiny? Do you restructure your holdings to stay under the threshold? Or do you move?
That last option isn't hypothetical. France has a competitive crypto scene, but it's not the only European jurisdiction with a favorable tax treatment. If the proposal becomes law, some holders may look at Portugal, Switzerland, or even Germany and wonder if the grass is greener. The proposal itself acknowledges that relocation is a possible outcome — a rare admission from a legislative text.
The timing and the politics
France isn't acting in a vacuum. Tax authorities across Europe are under pressure to close the crypto reporting gap, and the EU's recent anti-money-laundering package has already raised the bar for exchanges. But self-custody wallets remain a blind spot. This proposal is France's attempt to bring them into the light without an outright ban.
The measure still has to clear additional legislative steps before it becomes law. That means there's room for amendments, carve-outs, or a quiet death in committee. But the fact that it's advanced this far tells you something about the political appetite. Lawmakers aren't treating crypto as a temporary phenomenon anymore. They're treating it as a tax base.
For now, the practical question is what happens next. The proposal will face debate, likely revisions, and pushback from industry groups who argue that wallet disclosure is unenforceable and drives activity underground. Whether it survives intact is unclear. What's clear is that France is done waiting for crypto holders to volunteer their balances.
