France could recover billions more from cryptocurrency taxes. A Chainalysis report estimates $9.4 billion in potentially taxable crypto activity in the country, while only $368 million in capital gains were actually declared during the latest filing season. This staggering gap illustrates a structural compliance problem that could change by 2027 with new European regulations.
🔑 Key Takeaways
- Potentially taxable crypto activity in France reaches $9.4 billion in 2025
- Only 24,000 taxpayers declared $368 million in capital gains in 2025
- The flat tax rate stands at 31.4% (12.8% income tax + 18.6% social contributions)
- European platforms must transmit transaction data to French tax authorities from 2026
- The CARF framework covers only 14% of global on-chain crypto activity
A Taxable Activity of $9.4 Billion
The French crypto market presents considerable tax potential. According to the Chainalysis report published in 2025, potentially taxable crypto activity in France reaches $9.4 billion that year. This amount breaks down into three distinct categories:
- $2.5 billion in capital gains realized by individuals
- $1.7 billion in mining and staking revenue
- $5.2 billion in payments made with cryptocurrencies
Globally, potentially taxable crypto activity reaches $457 billion in 2025. The ranking is led by the United States with $112.6 billion, followed by Germany ($24.1 billion) and the United Kingdom ($19.4 billion). France ranks 13th worldwide, behind Indonesia but ahead of Australia.
Minimal Declarations Compared to Market Size
Facing this mass of potentially taxable income, actual declarations remain negligible. According to the Direction Générale des Finances Publiques (DGFiP), during the 2024 income tax return (covering 2023), only 7,700 taxpayers had declared cryptocurrency disposals for a total net capital gain of €150.8 million.
The following year, during the 2025 income tax return (covering 2024), 24,000 taxpayers declared €368 million in net capital gains. For comparison, during the 2021 period, 20,000 taxpayers had declared €400 million in net capital gains, while French investors had cashed out over $4 billion (approximately €3.7 billion) through cryptocurrencies according to Chainalysis estimates.
« Based on the experience of other countries, non-compliance rates can exceed 90%, even with tax rules as generous as those for crypto. »
François Volpoet, Managing Director France, Chainalysis
This abyssal gap between taxable activity and actual declarations illustrates a concerning non-compliance rate. The chasm between estimated tax potential and actual declarations suggests that billions of euros escape taxation each year.
The Current French Tax Framework for Cryptocurrencies
The current French tax framework stipulates that holding cryptocurrencies is not taxable in itself. Tax is only due upon specific taxable events. Three situations trigger taxation:
- Sale of cryptocurrencies for euros
- Use of crypto to pay for goods or services (treated as a sale for tax purposes)
- Receipt of income from mining, staking, or lending
Conversely, exchanging cryptocurrencies for each other is not taxable as long as it does not involve conversion to euros. An important clarification should be noted: using crypto to make a purchase is treated as a sale for tax purposes and triggers taxation on the capital gain realized.
Tax Rates and Exemption Threshold
Capital gains realized by individuals are subject to the single flat-rate deduction (PFU), commonly known as the flat tax. In 2026, the overall rate stands at 31.4%, divided between 12.8% for income tax and 18.6% for social contributions. An exemption threshold applies to annual capital gains below or equal to €305.
| Component | Rate |
|---|---|
| Income tax | 12.8% |
| Social contributions | 18.6% |
| Total (flat tax) | 31.4% |
| Exemption threshold | €305 |
Capital gains are calculated using the average cost method of the portfolio. All held cryptocurrencies constitute a single tax portfolio, and the acquisition price corresponds to the total value invested divided by the total quantity of crypto assets.
Regulatory Changes Expected from 2027
Several regulatory developments should change the landscape from 2027 onward. The European DAC 8 directive, relating to administrative cooperation in the field of taxation, and the OECD’s CARF (Crypto-Asset Reporting Framework) will require cryptocurrency platforms registered in the European Union to automatically transmit transaction data to tax authorities starting from January 1, 2026. From 2027, the French tax authority will have visibility into all operations conducted on these centralized platforms.
« This distrust could, paradoxically, strengthen some crypto holders’ reluctance to fully comply with their reporting obligations, even though the objective of these new regulations is to improve transparency and tax compliance. »
François Volpoet, Managing Director France, Chainalysis
However, this framework presents significant limitations. Chainalysis estimates that only 14% of global on-chain crypto activity falls within the effective scope of CARF. The remaining 86% escapes regulatory oversight, including activity on decentralized exchanges (DEX), peer-to-peer transfers, self-hosted wallets, and staking or lending income from decentralized protocols.
Trust and Security Challenges
The credibility of the French tax administration is also in question. In August, the DGFiP acknowledged suffering a « sophisticated » attack exposing the tax data of 678,000 taxpayers. Subsequent incidents involved cadastral data and inheritance records. This breach of sensitive data may weaken taxpayers’ trust in the tax systems.
Additionally, fake DGFiP letters are currently circulating, targeting cryptocurrency holders with the aim of trapping them. These scams exploit the confusion created by new reporting obligations and fear of penalties. Taxpayers must remain vigilant against these phishing attempts that can compromise their personal and financial information.
Outlook and Scenarios for Coming Years
The gap between taxable crypto activity and actual declarations in France represents a major tax issue. With the implementation of the CARF framework and DAC 8 directive, tax authorities will finally have tools to track undeclared crypto income. However, the framework’s limitations, covering only 14% of global on-chain activity, leave a significant portion of the crypto economy in the shadows.
Several scenarios can be envisioned. The optimistic scenario assumes a significant increase in declarations through international cooperation and automatic data exchanges between platforms. The pessimistic scenario envisions that technical complexity and the emergence of increasingly decentralized solutions perpetuate the lack of compliance. Regardless of the scenario, cryptocurrency holders in France would be wise to prepare precise and documented declarations to avoid penalties during upcoming tax audits.
Sources
This article is published for informational and educational purposes only. It does not constitute investment advice in any way. Do your own research (DYOR) before making any decisions.
