The transition from the PSAN regime to the European MiCA framework redefines the conditions for accessing cryptocurrencies for any investor residing in France. Understanding cryptocurrencies in 2024 requires mastering this new regulatory filter before even considering protocols or platforms. The crypto-assets market remains promising, but the rules of the game have changed profoundly.
PSCA Authorization and End of the PSAN Regime: What Changes for Investing in Crypto in France
The European MiCA rules regarding stablecoins have been in effect since June 30, 2024, and those targeting most crypto service providers since December 30, 2024. The direct consequence: the old PSAN registration is no longer sufficient to operate legally.
Platforms already registered in France under the PSAN regime have benefited from a transitional period to comply with MiCA. The AMF now distinguishes between the old PSAN registration and the European PSCA authorization. Before opening an account, check the exact regulatory status of the platform on the AMF register, not on the provider’s marketing page.
This distinction is not cosmetic. A platform displaying “registered with the AMF” may operate under a transitional regime without having obtained the definitive PSCA authorization. The guarantees regarding fund segregation, conflict of interest management, and pricing transparency differ between the two statuses. We recommend prioritizing providers that have already completed their MiCA compliance, rather than those still operating under exemption.
To delve deeper into the mechanisms for selecting a compliant platform, the Expert Finances website on crypto details the regulatory criteria to check before any investment.

Crypto Tax Obligations in France: Reporting Accounts and Capital Gains
The taxation of crypto-assets regularly traps investors who confuse two distinct obligations. Holding a crypto account abroad triggers a reporting obligation, even without a sale.
Any French tax resident holding a digital asset account with an entity established outside France must declare it using form 3916-bis. This obligation exists regardless of any sale or conversion. Failing to declare this account exposes one to a fine per account and per undeclared year.
The declaration of capital gains constitutes a separate obligation. It only occurs upon a sale (sale for euros, taxable crypto-to-crypto exchange depending on the case). The distinction between these two mechanisms is often misunderstood:
- The form 3916-bis concerns the mere holding of an account on a foreign platform, whether or not there have been transactions in the year
- The capital gains declaration applies when converting a crypto asset into fiat currency or during certain exchanges between digital assets
- An investor exclusively using a platform registered in France is not subject to the 3916-bis obligation but remains liable for the capital gains declaration in case of a sale
The most common mistake is to ignore the 3916-bis obligation in the absence of realized gains. The tax authorities do not make this distinction: mere holding is sufficient to create the obligation.
Security of Crypto-Assets: Wallets, Private Keys, and Counterparty Risks
The security of an investment in cryptocurrencies is not limited to the choice of platform. The management of private keys determines who truly controls the funds.
On a centralized platform (CEX), the investor entrusts the custody of their assets to the provider. This model simplifies daily use but introduces counterparty risk: if the platform goes bankrupt, suffers a hack, or freezes withdrawals, access to the funds is compromised. The MiCA framework imposes requirements for the segregation of client assets, but operational risk persists.
The alternative is a non-custodial wallet (hardware or software cold wallet). The investor then directly holds their private keys. This choice eliminates counterparty risk but transfers the entire responsibility: a lost private key means funds are permanently inaccessible.
- For significant amounts or a long holding horizon, a hardware cold wallet remains the most robust solution against hacking
- For frequent operations (trading, DeFi), a hot wallet or an account on a PSCA platform offers a compromise between accessibility and regulatory security
- The combination of both approaches (main amount in cold storage, operational fraction on platform) constitutes a coherent security architecture

Blockchain and Consensus Mechanisms: Proof of Work vs. Proof of Stake
The consensus protocol conditions the security, energy consumption, and economic model of a cryptocurrency. Bitcoin operates on Proof of Work (PoW): miners mobilize computing power to validate blocks and secure the network. This mechanism makes attacks extremely costly but generates considerable electricity consumption.
Ethereum has transitioned to Proof of Stake (PoS), where validation relies on the collateralization of assets by validators. The cost of an attack is then measured in locked capital rather than energy consumed. Staking allows holders to participate in validation and earn a yield, but involves a risk of slashing (partial loss of the stake) in case of malicious behavior by the validator.
The choice between PoW and PoS is not just technical. It determines the risk profile of the asset, its governance, and the yields accessible without resorting to third-party DeFi protocols.
Stablecoins and MiCA Regulation: A Segment Under Increased Surveillance
Stablecoins occupy a central place in the crypto ecosystem as a bridge between fiat currencies and digital assets. MiCA imposes specific requirements on stablecoin issuers regarding reserves, transparency, and redemption. Any stablecoin circulating in the EU must be backed by auditable reserves.
This regulation filters the stablecoins accessible to European investors. Some assets widely used in international markets may not meet MiCA requirements, limiting their availability on French PSCA platforms. Before establishing a position in stablecoin, we systematically check its European regulatory compliance.
The cryptocurrency market is evolving within a progressively tightening regulatory framework. Mastering tax obligations, choosing a properly authorized platform, and rigorously managing private keys form the foundation of an investment in bitcoin, ethereum, or any other crypto asset. Ignoring any of these three pillars exposes one to losses that are not related to market volatility but to avoidable mistakes.



