Thirty-eight to thirty-seven. Twenty-five abstentions. One hundred ballots cast in the French National Assembly on Amendment No. 3898, attached to the 2027 budget bill, and a single member changing their mind in either direction would have ended the entire matter.
Here is the anomaly worth auditing. Bitcoin did not move. Euro-denominated stablecoin supply did not move. Perpetual funding across the major venues stayed inside its weekly band. No French-facing exchange reported a withdrawal queue. A legislative event that would, on paper, strip a tax advantage from every stablecoin rotation executed by every French tax resident produced a price response indistinguishable from noise.
That silence is the most informative data point in the story. Everything else is draft text.
Under current French treatment, a swap from one crypto asset into another is not, by itself, a crystallizing event. The taxable moment arrives when the position converts to fiat currency. Deferral is not an exemption. It is a postponement, and postponement has a price, which is why it is worth modelling rather than moralizing.
Amendment 3898 proposes to remove that deferral in exactly one direction: crypto into stablecoin. The argument, as advanced by its sponsor Nicolas Sansu, is that a token designed to track the euro or the dollar should not receive better treatment than the euro or the dollar itself. On the surface that is a coherence argument, and coherence arguments are hard to defeat in a budget committee at eleven at night.
The problem is the definition. A stablecoin is a crypto asset whose design target is a fiat peg. Design target and outcome are not the same thing. Between the two sits a spread that has, on at least three occasions in the last five years, exceeded thirty percent.
At the European level, MiCA files stablecoins under its own categories — electronic money tokens and asset-referenced tokens — which makes them a subclass of crypto-assets, not a subclass of money. A national tax code that reclassifies them as quasi-cash opens a seam between Paris and Brussels that nobody has published guidance on. The amendment is silent on this. I can prove the silence. I cannot prove the intent.
Procedurally it has cleared a first reading. The Senate comes next. Then the joint committee, the commission mixte paritaire, where budget amendments are routinely rewritten past recognition. Nothing in this text is law. It is a draft with a vote attached, and the vote was decided by one person.
There is a reason this arrived as a budget amendment and not as a standalone bill. In the French system, the finance bill is the standard vector for tax change, and attaching a clause to it is the cheapest way to force a vote without a dedicated legislative slot. It is also the cheapest way to lose. Budget texts are amended at volume, traded across unrelated articles, and settled in committee by arithmetic rather than principle.
Start with what deferral is actually worth. Deferral is an interest-free loan from the treasury, sized at the tax rate multiplied by the unrealized gain multiplied by the holding period. At a thirty percent flat rate on a hundred-thousand-euro position carrying a twenty-thousand-euro gain, deferral preserves six thousand euros of working capital for as long as the position stays inside crypto. In a flat tape that loan is cheap. In a trending one it is not.
Which means the amendment is not really about stablecoins. It is about parking. The deferral made parking the cheapest operation in the French crypto taxpayer's toolkit: rotate into a dollar token, sit out the drawdown, rotate back, and pay nothing until the money touches a bank account. The tax code was subsidizing one specific trading behavior, and the legislature has now noticed it.
Fair enough. Now price the replacement.
If the rotation becomes a disposal, the taxpayer owes tax at the moment of the swap while holding zero euros. At thirty percent on a twenty-thousand-euro gain, that is six thousand euros due in cash against a balance sheet that is entirely stablecoin. The only way to pay is to sell the stablecoin. A tax on an unrealized gain is a forced-liquidation order written in legislative language. That is not a metaphor. It is a cash-flow constraint, and cash-flow constraints are what actually close accounts.
There is a second-order effect nobody in the chamber asked about: what happens to the base. A tax on rotation is a tax on an optional action. Rotations are not compulsory. They are executed because the after-tax expected value of executing exceeds the after-tax expected value of standing still. Raise the cost of the action and you do not collect more from the same flow; you collect from a smaller flow at a higher rate, and the arithmetic of which effect dominates is not obvious. France has run this experiment on financial transactions before and the published yield has consistently undershot the forecast. The amendment contains no forecast. That is convenient, because a forecast is a promise someone can check later.
This is where my own record becomes relevant, and not comfortably.
In May 2022 I held forty percent of my book in algorithmic stablecoins. When the peg broke I did not wait for a governance call or a community consensus. I sold into the collapse and took a sixty percent loss to protect the remaining sixty percent of capital. It was the correct decision and it still hurt to execute.
Under a regime that defines stablecoins as cash equivalents, that sale becomes a category error. If the instrument is money, then the loss on it is not a capital loss on an asset — it is a rounding error in a currency nobody was supposed to question. Define a stablecoin as cash and you do not merely tax the upside; you deny the downside. The people who draft these amendments have never watched a peg break at three in the morning. The people who have do not use the word equivalent.
Rotate the same logic through an ordinary strategy and the cost compounds.
In 2020 I ran a stablecoin pool position on Curve with a hardcoded exit at fifteen percent annualized. The exit was one transaction. Under the current framework that transaction is a swap between two crypto assets and therefore deferred. Under Amendment 3898 the same exit is a taxable event — and so is every re-entry, every rotation between pools, every rebalance from one dollar token to another. A strategy that rebalances monthly generates twelve taxable events a year instead of one. The gross return does not change. The net return does, and it falls by more than the headline rate implies, because each event resets the cost basis and each reset forfeits the compounding on the deferred amount.
Here is the part that never makes the committee note. If a rotation is a disposal, it is a disposal in both directions. Gains crystallize and losses crystallize. Under the current deferral, a French trader sitting on an underwater position cannot book the loss without converting to fiat; under the new rule, they can rotate into a stablecoin and bank the deduction. The treasury has not just added a taxable event. It has added a deductible one. Legislators who wanted a one-way ratchet have written a two-way valve, and the net revenue effect of the pair is an empirical question that nobody in the chamber has modelled.
And then the euro stablecoin, which is where the drafting collapses entirely. Take a token pegged to the euro, held by a euro-denominated taxpayer. Convert a bitcoin position into that token and the amendment asks you to compute a capital gain — in euros, on an instrument whose entire design objective is to be worth one euro. If the peg holds, the gain measured in the token is the gain measured in euros, which means the taxable event is the bitcoin leg and the stablecoin leg is a rounding artifact. If the peg breaks, the instrument is not cash and the whole premise of the amendment fails. Either way the clause is doing work that a competent drafter would have handled with a nominal-value rule and a threshold. It does neither.
Take the cleanest example I have. In 2024 I ran a cash-and-carry basis trade between spot Bitcoin ETFs and futures — fifty thousand euros allocated, roughly four percent annualized, six months held. The trade is mechanical. Buy spot, sell the future, roll the future at expiry, collect the basis. Gross return is a function of the spread. Net return is a function of how many times the spread gets taxed. A roll is a disposal. If each roll is taxable, the effective rate on the strategy's return is not thirty percent — it is thirty percent applied to a number that resets every quarter, which compresses the annualized net below the risk-free rate. The strategy does not get banned. It gets taxed into irrelevance. That is a more efficient form of prohibition, and it never appears in a press release.
Now the execution layer, which is where amendments of this kind always fail.
A tax on rotations can only be collected where rotations are visible. Centralized venues can be compelled to report. Self-custody cannot, and DeFi positions remain an open question in every European jurisdiction that has tried. The result is a two-tier code: the compliant user routing through a KYC exchange pays on every rotation, and the user routing through a hardware wallet and a decentralized venue pays nothing until they choose to. That is not a revenue measure. That is a competitive advantage handed to the venues France has spent four years trying to regulate out of existence.
And note what the text does not say. It does not specify the valuation methodology — mark at the moment of the swap, at the cost basis, at some daily reference rate. It does not specify a retroactivity clause. It does not specify whether the disposal price is the stablecoin's market price at execution or its nominal peg. Those are not details. Those are the entire computation. A tax statute that leaves the basis undefined is not a statute. It is a negotiation with an accountant, billed hourly.
The consensus reading of this vote is that France has turned hostile to stablecoins. I think that reading is lazy and the evidence behind it is thinner than the headline implies.
Start with the vote structure, because it is the only hard data in the entire story. Thirty-eight to thirty-seven with twenty-five abstentions out of a hundred ballots. That is not a majority. That is a coin flip with a quarter of the chamber refusing to leave fingerprints. Twenty-five legislators looked at a question of tax principle and chose to record nothing at all. Abstention at that scale is not neutrality. It is risk management by people who expect the text to be rewritten and do not want to be quoted on either side of it.
Budget amendments with one-vote margins have a well-documented life expectancy in the French system. They go to the Senate. They go to the joint committee. They come out the other side as something the sponsor would not recognize. The probability that this exact clause survives in this exact form is low, and anyone restructuring a portfolio on the strength of a first-reading vote is trading on an unverified assumption. Volatility is the tax on unverified assumptions. So is opportunity cost.
The market's non-reaction, which commentators have read as apathy, is not apathy. It is correct pricing. If French stablecoin demand were material to the global float, we would see it in euro-denominated stablecoin supply and in a French premium on the major venues. We do not. The flow this amendment targets is either small or already routed offshore, and both of those facts are arguments against revenue projections that nobody has published.
What this vote actually produces is not a tax but a template. Legislatures read each other's amendments. A clause that survives in France becomes a paragraph in a finance ministry memo in Lisbon, in Tallinn, in Vienna. Code is law until the governance vote kills it. Tax codes are governance with a longer memory than any protocol, and they do not get patched on a weekend.
One more thing, and it is the thing I would say to the sponsor directly. The data required to administer this clause already exists. Exchanges report. Chains are public. Cost basis is recoverable to the cent for anyone who has used a modern wallet. The obstacle is not technical capability; it is that the statute is written as though the capability does not exist, and administers itself through self-reporting and penalty. That is a choice, not a constraint.
I audit the exit, not the entrance. The entrance here is a vote count and a press cycle. The exit is a joint committee text, an effective date, and a retroactivity clause, and none of the three exists yet.
So the operational answer is short. Do not restructure a portfolio. Do not crystallize gains in anticipation of a rule that may not survive its own legislative process. Do not book an adviser's hour on the strength of a first reading. Watch three things and only three: whether the clause survives the joint committee, whether the effective date is prospective, and whether the text defines the basis.
The rest is noise wearing a suit.
But sit with the underlying question a moment longer, because it will outlast this amendment. If the ledger can prove your cost basis to the cent, and the exchange can report your rotation to the second, then why is the statute still written for a taxpayer who cannot? Due diligence is the only alpha that doesn't decay. Right now the only party in this transaction that has done none of it is the one writing the rules.