Hook
The operative text out of the Assemblée nationale carries four facts, and I am going to hold to those four facts, because everything else in circulation is inference wearing a headline.
An amendment to the French crypto tax regime passed the lower house. It targets "certain stablecoin swaps." An exit tax proposal remains under deliberation. A self-hosted wallet reporting mandate remains under deliberation.
No rate. No taxable-event definition. No effective date. No retroactivity clause. No stated interaction with MiCA, with DAC8, with the Transfer of Funds Regulation, or with the OECD's Crypto-Asset Reporting Framework.
I spent six weeks in 2017 reading Kyber Network's Solidity before mainnet and filing a pull request for three reentrancy paths that got merged two weeks before the token sale. The lesson from that exercise was not about reentrancy. The lesson was that an undefined variable does whatever the caller wants at runtime, and the caller is never the person who wrote the comment.
In tax law the caller is the DGFiP, and the runtime is your next fiscal year. "Certain stablecoin swaps" is an undefined variable. It will be resolved in the direction that maximizes assessed revenue, because that is the observable behavior of every revenue authority handed an open parenthesis by a legislature in a hurry.
Contrary to the framing running through the French-language crypto press, this is not a tax on gains. It is a tax on a transaction shape. The distinction matters more than the rate, and the rate has not been published.
Let me be exact. France has not banned stablecoins. It has not banned DeFi. It has proposed to convert a transaction category the current code treats as non-taxable — crypto-to-crypto conversion, which under Article 150 VH bis is a deferral, not a disposal — into a taxable event, but only when one leg is a stablecoin.
That is a reclassification of what a stablecoin is. Not a parameter change. A paradigm change wearing a budget technicality.
Context: The Baseline Nobody Printed
To read this correctly you need the floor, and the floor is boring, which is why it got skipped.
France taxes crypto under Article 150 VH bis of the Code général des impôts. Gains on actifs numériques are assessed at the prélèvement forfaitaire unique — a flat 30 percent, comprising 12.8 percent income tax and 17.2 percent social contributions. The taxable event, under the current reading, is the conversion of crypto assets into fiat currency, or the use of crypto assets to acquire goods and services.
Crypto-to-crypto is a deferral. Swap BTC for ETH and you have realized nothing the code recognizes. Cost basis carries forward. This is architecturally the same instinct as Germany's one-year holding exemption, and it is the reason French retail users have historically treated stablecoins as a settlement rail rather than a disposal.
Now the part that the reporting flattened into mush. Stablecoin-to-fiat is already taxable under the existing code. It always was. It is a fiat exit. If the National Assembly wanted to tax stablecoin-to-fiat conversion, it needed no new amendment, no new vote, no new headline.
Which means the amendment can only be targeting the one path that was previously exempt: crypto-to-stablecoin. ETH to USDC. BTC to USDT. And — this is the piece nobody has priced — possibly stablecoin-to-stablecoin. USDT to USDC. EURC to USDC.
The logic is not subtle. The current law has a fiat exit. The amendment adds a non-fiat exit. The only non-fiat exit that exists inside a crypto-native workflow is the stablecoin leg.
The second baseline is the EU layer, and it explains the timing. MiCA, Regulation 2023/1114, classifies stablecoins as electronic money tokens or asset-referenced tokens. Both categories are explicitly not securities. The Transfer of Funds Regulation, 2023/1113, obliges CASPs to collect counterparty information on self-hosted wallet transfers above 1,000 euros. DAC8, the eighth directive on administrative cooperation, applies from 1 January 2026, with first reporting in 2027. The OECD's Crypto-Asset Reporting Framework has its first exchanges in 2027.
France is legislating in the gap between the national statute and the EU data pipeline. That gap is two years wide. It is not an accident that the amendment lands inside it.
The third baseline is institutional. Paris has spent a decade trying to displace London as the EU's crypto hub, using the AMF's PSAN regime as a first-mover licensing advantage and the MiCA transition window as a moat. Ledger sits in Vierzon and Paris. SG Forge, a Société Générale subsidiary, issues EURCV. Kaiko sells institutional market data out of Paris. Waltio sells crypto tax computation out of Paris. This is not a country observing the industry from a distance. It is a country with payroll inside it.
Hold all three baselines. Now the analysis.
Core: The Definitional Hole
Tracing the ghost in the smart contract code is easy compared to tracing the ghost in a legislative text. At least Solidity compiles.
The phrase under scrutiny is certain stablecoin swaps. It appears in the reporting of the amendment without further specification. That absence is the story, and it produces three distinct ambiguities that resolve into wildly different tax regimes.
Ambiguity one: direction. Does the amendment tax crypto-to-stablecoin, stablecoin-to-crypto, or both? The first is a disposal into a synthetic dollar. The second is a disposal out of a synthetic dollar. The third is symmetric. Only the first and third generate new revenue against the current baseline, because stablecoin-to-crypto followed by crypto-to-fiat was already caught at the fiat leg. If the text taxes only stablecoin-to-crypto, it is decorative. If it taxes crypto-to-stablecoin, it is transformative.
Ambiguity two: homogeneity. Does USDT-to-USDC count? Does EURC-to-USDC? These are economically null operations — you hold the same dollar exposure before and after, minus a few basis points of spread. Taxing them creates a taxable event with no economic substance. That is not a rounding error in the code. It is a category error: the state would be asserting that a change in the issuer of a liability is a realization event.
Ambiguity three: scope of the term. Is EURCV a stablecoin under the amendment? Is a tokenized money market fund? Is a synthetic dollar generated by a perp position? The text as reported does not say, and the DGFiP will have to say, and it will say in a way that is administratively convenient rather than economically coherent.
Here is the operative conclusion. The amendment does not introduce a tax rate. It introduces a taxable event, and the taxable event is the entire policy. A rate applied to a badly drawn event produces revenue that is unpredictable in both directions — too much in some cases, too little in others, and litigation in all of them.
Core: The Enforceability Asymmetry
The reporting placed the stablecoin amendment and the self-hosted wallet reporting mandate in the same paragraph. That placement is a narrative trap, and it is the single most misleading thing about the coverage.
The two proposals have almost nothing in common on the execution dimension.
Stablecoin swaps executed on a centralized exchange or through a licensed CASP leave a centralized record. MiCA-licensed entities in France already maintain transaction-level data. The DGFiP can request it. The enforcement cost of taxing those swaps is close to zero, because the data is already sitting on a server in the EU, already formatted for DAC8, already reconcilable against a declared return.
Self-hosted wallet reporting has none of that. There is no intermediary. There is no counterparty obliged to report. Enforcement depends on the taxpayer's voluntary declaration, backed by the threat of penalty and the theoretical capacity of chain-clustering heuristics to catch the non-compliant. That is not enforcement. That is an honor system with a fine attached.
These two proposals are not at the same maturity, and they will not land at the same time, and any analysis that treats them as a package is doing the legislator's public relations work for free.
I built a Python script in 2020 that tracked Uniswap V2 pools across 500 daily transactions to map wallet clustering. The report was called The Silent Accumulation, and it correctly called the Compound airdrop value by correlating wallet clusters against governance participation. What that exercise taught me about enforcement is that on-chain clustering is a probabilistic instrument, not a deterministic one. It produces suspects, not assessments. A tax authority that builds its self-hosted wallet policy on clustering heuristics is building on a foundation that generates appeals.
Which is why the stablecoin clause will move first, and move cleanly, and the self-hosted reporting mandate will get watered down, delayed, or deleted. The order of operations is dictated by the data, not by the politics.
Core: Stablecoin Is Not a Stablecoin
The most expensive word in the amendment is the word stablecoin, because it implies a category that does not exist at the level of economic function.
There are at least four distinct things the market calls a stablecoin. There is the fiat-backed, attestation-only dollar token, which is a claim on a custodian. There is the regulated EMT, which under MiCA is a payment instrument with reserve and redemption obligations. There is the overcollateralized crypto-backed token, which is a leveraged position in disguise. And there is the algorithmic construct, which is a coordination game with a marketing budget — and which I modeled in 2022 across 10,000 Monte Carlo iterations of rapid withdrawal, arriving at the conclusion that any reserve-backed token without immediate liquidity proof fails under stress by construction rather than by accident.
A tax code that treats these four as one asset class is a tax code that will produce four different enforcement outcomes and one set of headlines.
The practical consequence is the multi-currency cost-basis ledger. If stablecoin-to-stablecoin conversion is taxable, a French taxpayer running a treasury across USDT, USDC, and EURC must maintain separate cost bases, separate acquisition timestamps, and a consistent lot-selection method. Under French law, the default is first-in-first-out weighted average on the total portfolio, which is already the most administratively hostile method available. Layering stablecoin-to-stablecoin events on top of it converts a treasury operation into an accounting project.
I have written tax software adjacent code. The number of person-hours required to maintain a compliant multi-stablecoin ledger for an active DeFi participant runs into the dozens per year. At a 30 percent rate on a basis-point spread, the compliance cost exceeds the tax liability by an order of magnitude. That is not a tax. That is a filing fee denominated in labor.
And here is the second-order effect nobody has modeled: rational actors respond to compliance cost by reducing transaction count, not by paying the cost. The tax base shrinks while the compliance industry grows. Waltio wins. The Treasury does not.
Core: The Lock-In Effect and the Laffer Problem
The economics of this amendment are not revenue economics. They are velocity economics.
Consider what a stablecoin actually does in a portfolio. It is the parking brake. It is where you sit when you want dollar exposure without a fiat exit. It is the intermediate step in every rebalancing operation, every risk-off rotation, every collateral substitution.
If every entry into that parking brake is a taxable event, the parking brake stops being used. Users hold the volatile asset rather than realizing a gain to move into a stable position. The behavioral response is not to pay the tax. The behavioral response is to not transact.
This is a Laffer problem, and it is the cleanest Laffer problem I have seen in crypto tax policy because the substitution is frictionless. You do not need to leave France to avoid this tax. You need to do nothing.
Doing nothing is free. Doing nothing is also the exact opposite of what a functioning market needs.
The revenue estimate, if one exists, is almost certainly built on a static model — current stablecoin conversion volume times the assumed rate. Static models do not capture velocity collapse, and velocity collapse is the dominant term. In my 2022 Terra modeling I learned that the dominant term in a stress scenario is never the parameter you are arguing about. It is the behavioral response of the marginal participant. The marginal participant here is a French retail user with a Coinhouse account and a hardware wallet, and their marginal response to a transaction tax on stablecoin swaps is to stop swapping.
There is a second-order distortion that is more insidious. Stablecoins are the on-ramp buffer. A user who wants to enter crypto converts fiat to a stablecoin first, then allocates. If the stablecoin leg becomes a taxable event, the user skips the buffer and buys the volatile asset directly. The portfolio becomes riskier at the point of entry. A tax designed to raise revenue on stablecoin usage would, at the margin, increase retail exposure to volatility. That is a consumer protection outcome nobody in the chamber voted for.
Core: DeFi Composability and the Marginal Cost of Rebalancing
Mapping the liquidity that never was is a familiar exercise for me. In 2021 I spent three months reverse-engineering Blur's order book to separate wash volume from organic demand on Bored Ape Yacht Club, cross-referencing Ethereum transaction hashes against off-chain Discord activity, and finding a 40 percent discrepancy between reported and real volume. That report called the NFT correction three weeks early.
The relevant lesson transfers directly. When you tax a step in a composable pipeline, you do not tax the pipeline once. You tax it at every step, and the pipeline reorganizes to avoid the steps you taxed.
DeFi operations are almost universally denominated in stablecoins at the intermediate layer. Collateral is posted in stablecoins. Liquidations settle in stablecoins. Arbitrage across pools is denominated in stablecoins. Yield farming rewards are swapped into stablecoins for risk management.
If each of those steps is a taxable event for a French tax resident, the marginal cost of participating in DeFi from France rises not by a percentage but by a multiple. A single leveraged position might involve five stablecoin legs across its lifecycle — entry, collateral substitution, top-up, partial unwind, full unwind. Under the amendment as reported, that is potentially five taxable events on a position whose net economic gain may be zero or negative.
Taxing a losing position because it moved through a stablecoin is not a tax policy. It is a compliance trap that will be litigated and, in my estimate, partially struck.
The composability damage also runs against France's own industrial interest. Paris wants to be the EU's DeFi hub. The AMF has been unusually constructive on DeFi experimentation. SG Forge's EURCV exists precisely to give European DeFi a regulated euro leg. Taxing the euro stablecoin's movement is taxing the product France spent five years building.
Core: The Jurisdiction Scoreboard
France currently sits mid-table. Thirty percent flat, fiat-exit-only taxable event, no wealth tax on crypto, no holding-period exemption. It is not the worst regime in Europe and it is not the best.
The amendment moves France down the table, and the direction of the move is what matters, not the magnitude.
Portugal tightened in 2023 after years of long-hold exemption and remains more attractive. The UAE taxes individual crypto gains at zero, which is not a tax regime but an absence of one, and which functions as a permanent gravitational pull on mobile capital. Switzerland exempts private capital gains in principle. Germany exempts holdings beyond one year.
The competitive dynamic here is not the usual regulatory arbitrage story, because the asset is fully portable. A private key is a string. A seed phrase fits on a piece of paper. The cost of relocating a crypto treasury across a border is measured in hours, not in legal fees, and the cost of relocating the tax residency that governs it is measured in a change of address and a filing.
A jurisdiction that raises the friction on a perfectly portable asset does not collect more tax. It exports the taxpayer and imports the reputation.
I want to be careful about causation here, because the industry's reflex is to overclaim. Correlation between a tax increase and capital flight is not proof of causation. The counterfactual matters. France might be growing its crypto user base even as it raises friction, because the base effect from a low starting point dominates. What the data will actually show, if anyone measures it, is a compositional shift rather than a volume collapse: the compliant, high-touch, exchange-mediated segment shrinks, and the self-custodied, offshore-mediated, P2P segment grows.
Which is the exact opposite of the legislative intent. A tax designed to increase visibility into crypto activity would, on this trajectory, reduce it.
Core: Ledger's Narrative Exposure
Here is the exposure the market has not priced, because it is narrative rather than financial, and narrative does not show up in a discounted cash flow model.
Ledger is French. Ledger's entire brand architecture rests on a single proposition: not your keys, not your coins. The company sells self-custody as an ideology and a product simultaneously.
A French legislative mandate requiring citizens to declare self-hosted wallet holdings is not a financial threat to Ledger. It is an existential threat to the brand's domestic legitimacy. It places a French company in the position of selling a device whose defining feature — untracked, unreported, sovereign possession — is being administratively designated as a reporting obligation by that company's own government.
The blockchain remembers what the founders forget. The chain does not care about the marketing copy, and it will keep recording every address regardless of what the DGFiP requires you to declare about it. But the company's customers will remember which government asked them to file a form about their hardware wallet, and they will remember which company's home jurisdiction wrote the form.
I do not think the self-hosted reporting mandate survives in its reported form. The constitutional exposure is too clean — an obligation to self-report private key control, with no third-party verification mechanism, sits uncomfortably against privacy protections and the principle against compelled self-incrimination. But the political damage to the self-custody narrative is done at the moment of introduction, not at the moment of enactment.
Core: The SG Forge Contradiction
SG Forge issues EURCV. It is a Société Générale subsidiary, which makes it simultaneously a systemically important French bank's crypto arm and the flagship of Europe's regulated euro stablecoin ambition.
The amendment, if it taxes stablecoin-to-stablecoin conversion, taxes the market-making layer that makes EURCV liquid. Euro stablecoin liquidity is thin to begin with. Every basis point of friction on the EURC-EURCV or EURCV-USDC path is a basis point that a market maker prices into a wider spread, and a wider spread on a thin book is a death spiral for adoption.
France is the principal political sponsor of the euro stablecoin agenda in Brussels. The ECB has been explicit about wanting a European-issued digital euro-adjacent instrument to reduce dollar stablecoin dominance. SG Forge built it. The National Assembly is now proposing to tax its movement.
That is not a policy tension. That is a policy contradiction, and it is the kind of contradiction that only survives because the tax committee and the industry committee do not read each other's documents.
Core: The Legislative Gauntlet
"The National Assembly passed the amendment" is being reported as if it were a terminal state. It is not a terminal state. It is roughly the twenty-yard line of a hundred-yard field, and the field has three more defenders.
The Senate goes next. The Senate Finance Committee has an independent tradition on crypto provisions and has historically been more skeptical of novel taxable events than the lower house. Text can be amended, gutted, or replaced.
Then the Commission Mixte Paritaire, the joint committee that reconciles the two chambers' versions. If it fails to agree, the text goes back and the process restarts. If it agrees, the reconciled text is what survives — and reconciled texts routinely drop the provisions that generated the headlines.
Then the Conseil constitutionnel. French budget law is a graveyard for provisions attached as cavaliers budgétaires — riders that lack a direct link to the budget. A stablecoin tax amendment attached to a budget bill is precisely the kind of provision that gets severed on procedural grounds, and the Conseil has done it repeatedly.
And underneath all of it sits Article 49.3, the constitutional mechanism allowing the government to pass a budget without a vote. France's budget politics have been unstable enough in recent cycles that its use is a live probability, not a hypothetical. If 49.3 is invoked, the fate of the stablecoin clause is decided by political survivability of the government, not by the technical merits of the clause. Technical analysis of the clause becomes irrelevant at the exact moment it becomes most consequential.
Silence in the logs speaks louder than the pump. The silence here is the absence of any published impact assessment, any stated transition period, any definitional annex. Those absences are not oversights. They are the signature of a provision that is being carried forward on momentum rather than on drafting.
Core: Exit Tax Is the Weaker Clause
The exit tax proposal is being reported alongside the stablecoin clause. It is legally far more fragile, and it deserves a separate verdict.
France's existing exit tax applies to taxpayers holding equity stakes above 800,000 euros at the moment of departure. Extending it to crypto assets requires resolving three problems that have no clean answers.
Valuation timing. At what instant is the portfolio valued — the date of departure, the date of the tax filing, or a weighted average? For a volatile asset class, the choice is worth more than the tax itself.
Constitutionality. An exit tax on unrealized gains implicates freedom of movement and property rights. The French constitutional framework has been protective of both, and a crypto extension invites a priority question on exactly those grounds.
Treaty interaction. France maintains double-taxation treaties with most of its capital-export destinations. An exit tax that taxes unrealized appreciation at departure, followed by a destination-country tax on the same appreciation at sale, produces double taxation that the treaty network does not obviously resolve.
My assessment is that the exit tax clause is materially more likely to be struck, weakened, or indefinitely deferred than the stablecoin clause. The stablecoin clause is administratively easy — the data exists. The exit tax is administratively and constitutionally hard — the data does not exist and the principle is contested.
Core: Three Proposals, Three Maturities
The most consequential misreading in circulation is the framing of these three proposals as a coordinated tightening. They are not coordinated. They have radically different drafting maturity, radically different enforcement feasibility, and radically different political cost profiles.
The stablecoin clause is a data-backed revenue measure. Low political cost, high administrative feasibility, immediate budget relevance. It passes.
The exit tax is a sovereignty measure with contested legal footing. High political appeal, low administrative feasibility, high litigation risk. It gets weakened or deferred.
The self-hosted reporting mandate is a data-gathering measure disguised as a tax measure. Its revenue yield is near zero and its constitutional exposure is real. It gets delayed, softened into a threshold, or deleted.
The most likely composite outcome is one of three. One: stablecoin clause survives, exit tax survives in a narrowed form, self-hosted reporting is dropped. Two: stablecoin clause survives, exit tax is struck, self-hosted reporting is deferred to a study. Three, and the tail risk: 49.3 is invoked, the entire package passes unamended, and the constitutional challenge becomes the only remaining brake.
Anyone trading on the headline "France taxes stablecoins" is trading on outcome one as if it were already outcome three.
Core: Front-Running DAC8
One more structural observation, and it is the one that determines whether this amendment is about revenue at all.
DAC8 applies from 1 January 2026, with first reporting in 2027. CARF first exchanges land in 2027. From that point, France will receive automated, standardized, cross-border data on crypto holdings and transactions involving French residents across the entire EU and the CARF signatory network.
Which means the information asymmetry that makes self-hosted reporting valuable today disappears in 2027.
So why legislate now? Two answers, and they are not mutually exclusive.
Answer one: political credit. Being first to legislate on crypto taxation in the EU generates domestic political capital at near-zero fiscal cost, because the actual revenue is deferred. This is a well-worn pattern in French budget politics.
Answer two, and I think this is the more accurate one: the real product of these provisions is the baseline dataset, not the revenue. A reporting obligation creates a declaration. A declaration creates a record. A record creates a comparison point against DAC8 data arriving in 2027. The tax authority that has three years of self-declared French crypto holdings can audit the DAC8 dataset for discrepancies on day one. The tax authority that has none spends the first two years building a baseline.
This is the classic sequencing of tax administration. Declare first, assess later. The revenue estimate attached to the amendment is a political artifact. The data acquisition is the strategic objective.
Contrarian: What the Data Does Not Say
Here is where I diverge from nearly everyone writing about this, in French or in English.
The consensus read is that France has turned hostile to crypto. The data does not support that. The data supports something narrower and stranger: France has turned hostile to the stablecoin settlement layer while remaining friendly to the stablecoin issuance layer.
Look at the policy stack. MiCA implementation has been constructive. The PSAN regime has been a genuine first-mover advantage. The AMF has engaged with DeFi rather than suppressing it. SG Forge was licensed to issue a euro stablecoin. Ledger operates with state blessing. France has done more than any EU member to build the industry.
And then it proposes to tax the movement of the asset class it just built the infrastructure to issue.
That is not hostility. That is a failure of policy integration. The tax directorate needs revenue. The industry directorate needs adoption. They are writing separate documents and nobody is reconciling them.
The second divergence is about the market's pricing efficiency. I estimate less than five percent of this event is priced into anything. That is not because the market is asleep. It is because the event is not yet an event. It is a legislative midpoint in a single member state affecting a subset of that state's tax residents, with three institutional gates remaining before it becomes law.
But the mispricing runs in a specific direction that is worth naming. The market treats legislative headlines as binary — pass or fail. Legislative processes are not binary. They are Bayesian. Each gate updates the probability. The National Assembly vote moved the probability of the stablecoin clause from low to moderate. It did not move it to one, and the coverage implied it did.
Pattern recognition precedes profit prediction. The pattern here is not "France taxes crypto." The pattern is "budget amendments with undefined terms get rewritten in joint committee and severed by the constitutional council." That pattern has a long track record in French fiscal law and it is being ignored.
The third divergence is about who actually gets hurt. The coverage assumes retail. The actual exposure is institutional and mid-market — French crypto businesses with treasury operations, French funds with on-chain strategies, French DeFi participants with meaningful position sizes. Retail users have an exit that costs nothing: don't swap. Institutional users have an exit that costs a legal entity restructuring: re-domicile the treasury.
Retail pays in inconvenience. Institutions pay in jurisdiction. The amendment's revenue estimate almost certainly assumes retail behavior while the actual revenue at risk sits with institutions.
And the fourth divergence, the one that will age best or worst: I do not think this amendment, in any final form, survives the decade. Not because crypto wins, but because the taxable event it creates is economically incoherent. Taxing a swap between two representations of the same dollar liability is the fiscal equivalent of taxing a currency exchange between two banks holding the same reserve. It will produce absurd outcomes, the absurd outcomes will generate litigation, the litigation will generate a legislative correction, and the correction will arrive roughly when DAC8 makes the whole exercise redundant.
That is not a prediction of repeal. It is a prediction of erosion. Tax codes do not repeal bad events. They carve exceptions until the event is unrecognizable.
Contrarian: The One Metric Nobody Is Watching
If you want a single observable that resolves this story before the Senate does, watch the on-ramp flows at French-licensed platforms rather than the price of BTC.
The amendment, if it passes in the broad form reported, should produce a measurable decline in fiat-to-stablecoin conversion volume at French CASPs, offset by a rise in direct fiat-to-crypto conversion and a rise in P2P and offshore on-ramp volume. That is a testable prediction, and it is testable within two quarters of any effective date.
The predicted magnitudes, and I will label these as estimates rather than measurements: five to twenty percent decline in French CASP stablecoin conversion volume, a smaller rise in direct fiat-to-crypto, and a rise in self-hosted wallet inflows from French IP addresses that partially offsets the CASP decline.
If those numbers do not materialize, my thesis is wrong and the amendment is decorative. If they do materialize, the amendment has done the opposite of what it intended — it has moved activity from a regulated, visible, reportable venue into an unregulated, invisible, unreportable one.
That is the paradox at the center of every crypto tax regime written before the data infrastructure exists. You cannot tax what you cannot see, and the act of trying to see it pushes it out of sight.
Takeaway
The next signal is not the vote. The vote already happened and it told you less than the headline claimed.
The next signal is the Senate Finance Committee's calendar, and then the text of the reconciled version coming out of the Commission Mixte Paritaire. That text will either define "certain stablecoin swaps" or it will not, and the presence or absence of a definition is worth more than any rate attached to it.
Second signal: whether a transition period appears. A provision with no transition period is a provision drafted to be amended. A provision with a stated phase-in is a provision drafted to survive.
Third signal: EURCV and EURC volume on French-accessible venues. If euro stablecoin liquidity thins in the quarter following the Senate stage, the market has already priced the clause. If it holds, the market has read the clause as decorative, and the market is usually right about decorativeness and usually wrong about direction.
Fourth signal: whether Ledger or the French crypto trade associations file a formal submission on the self-hosted reporting mandate. A filing is a signal that the industry believes the mandate is live. Silence is a signal that they believe it is already dead.
What I would tell a French tax resident holding a stablecoin treasury today, in one line: the taxable event is not the rate, the rate is not published, and the only thing that is certain is that the definition will be written by someone who has never opened a DeFi position. Plan for the definition, not the headline.
And what I would tell everyone else: watch this space, because France is the EU's regulatory template. When a member state that wrote MiCA drafts a stablecoin tax, the other twenty-six read the draft. The exposure is not French. The exposure is European, and it is arriving on a two-year delay calibrated to the DAC8 pipeline.
The chain will record every swap regardless. The question is only whether the ledger of the tax authority will match it.