France's 31.4% Stablecoin Tax Proposal: What It Means for Your Crypto
French lawmakers are debating a 2027 budget amendment that would apply the country's existing 31.4% flat capital gains tax to a category of trades most investors currently treat as tax-free: swapping cryptocurrency into stablecoins regulated under the EU's MiCA framework. If it passes, parking bitcoin or ether in a euro-pegged token could trigger a tax bill before you've touched a single euro. Analysts at blockchain intelligence firm Chainalysis have publicly warned the proposal may achieve the opposite of its stated aim, pushing activity toward channels that are harder to monitor and tax. Here is what you need to know about the proposal, who it targets, and what the wider package of measures could mean for your France's proposed stablecoin swap and exit tax rules explained.
How Crypto Is Currently Taxed in France
To understand why this proposal matters, it helps to know where France's rules stand today. Understanding how crypto is taxed in France is the starting point for assessing any proposed change.
The 31.4% flat tax and when it applies
France taxes crypto capital gains at a flat rate of 31.4%, which bundles income tax and social charges together. Crucially, a taxable event only arises when you convert crypto into euros or another fiat currency, or when you spend crypto on goods and services. Swapping one crypto asset for another, including moving from bitcoin into a stablecoin, does not currently trigger capital gains tax. That exemption has made stablecoins a popular way to lock in value during volatile periods without crystallising a tax liability.
What "regulated stablecoins" means under MiCA
The EU's Markets in Crypto-Assets regulation, known as MiCA, classifies certain stablecoins as electronic money tokens (EMTs). These are tokens pegged to a single fiat currency and issued by entities authorised under EU financial regulation. USDC, issued by Circle, has obtained MiCA-compliant status in Europe. EURC, Circle's euro-denominated token, is another example. USDT, issued by Tether, DAI, and PAXG currently fall outside MiCA's EMT category. That distinction is at the heart of this debate.
What the Proposed Amendment Would Actually Change
The amendment under discussion in France's National Assembly would reclassify a swap from, say, bitcoin into a MiCA-compliant EMT as a disposal for tax purposes. In plain terms: the moment you move from a volatile crypto asset into a regulated stablecoin, the gain you've built up on that crypto asset becomes taxable at 31.4%, even if you haven't converted anything to euros.
The scope: which tokens are affected
Only stablecoins classified as electronic money tokens under MiCA would fall within the new rule. That means USDC and EURC are in scope. USDT, DAI, PAXG, and other tokens that either haven't sought or haven't received MiCA EMT authorisation would remain outside the proposed rule. The asymmetry is precisely what Chainalysis finds concerning: the proposal effectively creates a tax penalty for using the most regulated, most transparent stablecoins, while leaving a tax-free route open through less-regulated alternatives.
The timeline and legislative status
The amendments form part of France's proposed 2027 budget, which the National Assembly's finance committee began debating in October 2026. The committee subsequently rejected the revenue section of the budget by 31 votes to 3, meaning all the crypto amendments must be resubmitted for debate in the full National Assembly. A vote on the revenue section was scheduled for 20 October 2026. Nothing is law yet. The proposed start date for the new stablecoin tax rule, if it does pass, is 1 January 2027.
Why Chainalysis Says This Could Backfire
Francois Volpoet, Chainalysis' CEO for France, put the core tension plainly in a statement to CoinDesk: "Do we want more taxpayers to declare their assets, or a higher tax rate applied to a base that is increasingly evaded?" His argument is that regulated stablecoins are transparent by design. Regulators and tax authorities can monitor flows through MiCA-compliant tokens far more easily than they can track transactions on decentralised finance platforms, peer-to-peer networks, or exchanges that sit outside international tax-reporting frameworks.
The EURC and USDC volume data
Volpoet pointed to trading volume data as evidence that regulatory changes can rapidly shift where activity concentrates. European trading volumes for EURC grew by 2,727% between July 2024 and June 2025. Over the same period, USDC volumes grew by 86%. The sharp divergence illustrates how quickly traders respond to shifts in the regulatory environment, and the implication is that a tax disadvantage attached to MiCA-compliant tokens could produce a similarly rapid reallocation toward tokens that carry no such disadvantage. Chainalysis also estimates that France reported 9.4 billion dollars in taxable on-chain crypto activity in 2025, including 2.5 billion dollars in gains, though Volpoet noted those figures don't capture the potential behavioural response to a tax of this kind.
Security concerns around wallet disclosure
A separate amendment in the same budget package would require French taxpayers to declare any self-hosted crypto wallet holding at least 100,000 euros in assets, with fines of up to approximately 11,600 dollars for non-compliance. You can read more about the background to that measure in our coverage of France's 112,000-euro crypto wallet reporting plan. Volpoet raised a pointed concern about this requirement: France has seen a sharp rise in physical attacks targeting crypto holders. As of July 2026, Europe accounted for 52 such attacks in the first half of the year, with France alone responsible for 33, representing 63.5% of the worldwide total. Chainalysis documented 30 violent attacks in France during the first half of 2026, and Volpoet noted that more than 40% targeted relatives of crypto holders rather than the holders themselves. He called for strict controls on who can access any disclosed wallet data, arguing that a data leak could put families at physical risk.
The Full Package: Exit Tax and Loss Carry-Forward
The stablecoin swap tax isn't the only crypto measure being debated. The broader 2027 budget package includes two further proposals that could reshape how crypto is taxed in France for years to come.
Exit tax extended to crypto
One amendment would extend France's existing exit tax to crypto holdings worth roughly 900,000 dollars or above. France's exit tax currently applies to wealthy shareholders who move abroad, taxing unrealized gains on qualifying assets as though they had been sold on the day of departure. Extending this to large crypto portfolios would mean that moving to another country doesn't allow you to escape French capital gains tax on unrealized crypto profits above that threshold.
Loss carry-forward for up to 10 years
On the more taxpayer-friendly side, a separate proposal would allow investors to carry forward crypto losses for up to 10 years. Under current rules, crypto losses cannot be offset against gains in the same flexible way as losses on equities. This change would bring the tax treatment of crypto closer to that of stocks and shares, giving longer-term investors a more meaningful ability to smooth out gains and losses across market cycles.
What This Means If You Hold Stablecoins in France
For individual investors in France, the practical implications of the stablecoin tax proposal are significant, even at this early stage.
Reviewing your stablecoin strategy now
If you currently use USDC or EURC as a temporary holding position between trades, you need to track the cost basis of the crypto you swap out of, because that swap would become a taxable disposal if the amendment passes. Every time you move from bitcoin, ether, or any other crypto into a MiCA-regulated stablecoin, you'd need to calculate the gain or loss on the crypto you're selling, apply the 31.4% rate to any gain, and report it. Calculating that accurately across dozens or hundreds of transactions is exactly where a reliable crypto tax report becomes essential.
The asymmetry problem for compliant investors
The uncomfortable reality the Chainalysis warning highlights is that investors who choose the most regulated, most transparent stablecoins would face a tax cost that investors using less-regulated alternatives would not. That's a structural incentive to move away from the tokens that authorities can most easily monitor. If you want to stay compliant and use MiCA-regulated stablecoins, you'll need to calculate crypto taxes on each swap, not just on your final cash-out. If you shift toward USDT or DAI to avoid the tax, you're still likely to face reporting obligations, especially given the parallel wallet disclosure amendment, but you may be in a grayer regulatory space.
Nothing is law yet
It bears repeating: these are proposed amendments, not enacted law. The finance committee has already rejected the revenue section of the budget once, and the full National Assembly debate and vote is the next hurdle. The proposals could pass unchanged, be amended, or be dropped entirely. That said, the direction of travel is clear enough that anyone with a meaningful crypto portfolio in France should be planning for the possibility that 2027 brings materially different rules than 2026.
France in the EU Context
France's proposals sit within a broader European debate about how to tax crypto assets consistently. Germany, France, and Italy are all setting or planning to set capital gains rates on crypto above 25%. Greece is moving in the opposite direction, having published a draft bill proposing a 10% capital gains tax on cryptocurrency for public consultation around the same time France's budget debates were underway. The contrast illustrates just how fragmented the EU tax landscape remains, even as MiCA creates a unified regulatory framework for the assets themselves. For traders operating across borders, that gap creates both planning opportunities and compliance complexity.
Frequently Asked Questions
Is swapping crypto for USDT or USDC taxable in France today?
Under current French tax rules, swapping one crypto asset for another, including a swap into a stablecoin, does not trigger capital gains tax. A taxable event only arises when you convert crypto to euros or spend it. The proposed 2027 budget amendment would change this for MiCA-regulated stablecoins like USDC and EURC, but USDT, DAI, and PAXG would remain outside the proposed rule's scope. Nothing has changed yet as of October 2026.
What is the 31.4% rate made up of?
France's 31.4% flat rate on crypto capital gains combines the flat income tax component with social charges. It applies to net gains when a taxable disposal event occurs. If the stablecoin amendment passes, the same 31.4% rate would apply to gains crystallised on swapping crypto into a MiCA-compliant electronic money token.
Which stablecoins would be affected by the proposed rule?
Only stablecoins classified as electronic money tokens under the EU's MiCA regulation would fall within the proposed amendment. Circle's USDC and EURC are examples of tokens that have obtained or are seeking MiCA EMT status. USDT, DAI, and PAXG are not currently classified as MiCA EMTs and would not be caught by the proposed rule as currently drafted.
How does the exit tax extension affect me if I'm thinking of leaving France?
If the exit tax amendment passes, unrealized crypto gains on holdings worth roughly 900,000 dollars or more would be treated as though disposed of on the day you become a tax non-resident of France. You'd owe French capital gains tax on those unrealized profits even if you haven't sold anything. This mirrors the treatment already applied to large equity holdings when wealthy shareholders emigrate.
Do I need to declare my hardware wallet or software wallet to French tax authorities?
Not yet under current law, as it applies to wallets held on foreign exchange platforms. However, a proposed amendment in the same 2027 budget package would require disclosure of self-hosted wallets holding at least 100,000 euros in assets. Fines for non-compliance would reach approximately 11,600 dollars. This amendment has not become law, but given the security concerns raised by analysts, any future disclosure requirement is likely to be accompanied by debate about data access controls.
Source: CoinDesk Policy