The world of cryptocurrencies continues to gain popularity in France, and with it, the crucial question of crypto tax. If you hold digital assets, understanding how to declare your crypto for the 2025 tax year is essential to remain compliant with the law. This article guides you through the important aspects of crypto tax in France, informs you about the steps to follow, and presents tools to simplify this process.

To quickly find out your crypto tax amount, consult the WEEX crypto tax calculator now.

The Flat Tax in France

Cryptocurrency taxation in France is primarily governed by the Flat Tax (Prélèvement Forfaitaire Unique - PFU). This flat-rate tax applies to capital gains realized during the sale of digital assets and directly influences how you declare your crypto.

What is the Flat Tax and its impact on crypto tax?

The Flat Tax establishes a single tax rate of 30% on capital gains from your cryptocurrency transactions. This rate is divided as follows:

This regime applies by default to gains resulting from the sale of your crypto for fiat currencies (euros, dollars, etc.) during spot or futures trading, or from using them to acquire goods or services whose value exceeds the initial purchase price of those same cryptos.

To learn more about your crypto taxes in France, consult the WEEX crypto tax calculator.

WEEX helps you understand how to declare your crypto taxes.

Who is affected by the crypto tax declaration?

In principle, simply holding cryptocurrencies does not require a declaration. Likewise, crypto-to-crypto exchanges (for example, swapping Bitcoin for Ethereum) do not constitute a taxable event and therefore do not require a declaration as long as there is no conversion into fiat currency or purchase of goods/services.

The obligation to declare is triggered upon the sale of cryptocurrencies, that is, when you sell them for euros or another fiat currency, or when you use them to acquire a good or service. Only the capital gain realized during these transactions is subject to crypto tax. Consult this tax administration guide to learn how to declare your crypto capital gains.

What are the risks of not declaring your crypto for taxes?

According to Cryptoast, failing to declare your crypto capital gains exposes you to tax risks (late payment interest, penalties of 10% to 80%, fines for undeclared accounts) and potentially criminal risks (tax fraud if evaded duties > 100,000 € and high penalty). Voluntary regularization or regularization during an audit helps limit these costs on your crypto tax.

Specifics regarding crypto tax declaration in France

Certain specific elements must be considered when declaring your crypto:

Form No. 3916 - 3916 bis

If you hold digital asset accounts opened, held, used, or closed abroad in 2024, you are required to declare them to the French tax administration using form No. 3916 - 3916 bis. This obligation concerns all accounts opened with foreign entities allowing the purchase, sale, exchange, or holding of cryptocurrencies. This step is an important specific detail to know for declaring your crypto taxes.

The 305 € rule

"Capital gains realized by individuals, during the sale of cryptocurrencies, are exempt from tax if the total sales in the year are less than 305 euros," according to the tax administration. However, it is crucial to note that this exemption applies to the total amount of sales, not the capital gain itself. As soon as the 305 € sales threshold is crossed, the entire gain becomes taxable and must be taken into account in the calculation of your crypto tax.

Specifics: Airdrops, staking, mining, NFT

The tax treatment of certain specific operations related to cryptocurrencies can be complex:

• Staking: According to BFM Crypto, "gains on cryptocurrency staking should logically fall under Non-Commercial Profits (BNC) for the year of receipt and, in the event of a sale, they will be subject to capital gains tax (30% Flat Tax). If staking income is not declared upon receipt, the cryptos obtained as rewards should be considered as acquired free of charge at the time of sale."

• Mining: The Ministry of the Economy considers in this guide that "the taxable result derived from this activity is determined in accordance with the common law rules applicable to non-commercial profits, it being specified that the acquisition value retained for the calculation of the taxable result is zero when the bitcoins were awarded for free."

Crypto tax declaration can be complex for beginners.

• NFT: The taxation of NFTs in France is uncertain, oscillating between the regime for capital gains on digital assets (30% Flat Tax), that for works of art (6.5% or 36.2%), and that for movable property (36.2% with an allowance). Declaring your NFTs is mandatory when selling them for fiat currencies, goods, or services. According to Waltio, NFTs are digital assets and must be subject to the regime for capital gains on digital assets. However, it is recommended to consult a specialized lawyer to obtain up-to-date information adapted to your situation.

• Airdrops: According to experts, three cases stand out: the "surprise" airdrop not taxable upon receipt, the anticipated airdrop potentially subject to Non-Commercial Profits (BNC) upon receipt, and the initially undeclared airdrop, taxed upon sale as a capital gain with a zero acquisition price. Caution and consultation with a specialized lawyer are recommended.

The best tools to declare your crypto in 2025

To simplify the process of declaring your crypto taxes, several crypto tracking and tax calculation tools exist:

Waltio

• Pros: User-friendly interface, broad compatibility with exchanges, generation of compliant tax reports.

• Cons: Can become expensive for a large number of transactions.

Koinly

• Pros: Limited free version but useful for small portfolios, integration with numerous blockchains and platforms.

• Cons: The free version is very limited.

Blockpit

• Pros: Advanced automation, advanced features for active traders.

• Cons: Can be complex for beginners, potentially high cost.

Rigorously declaring your crypto taxes is essential to avoid penalties.

Conclusion: How to declare your crypto for taxes in 2025?

• Correctly declaring your crypto for the 2025 tax year is a legal obligation that should not be neglected. You must understand the Flat Tax, identify the risks associated with non-declaration, and know the tax specificities of different operations.

• Do not forget to declare your accounts abroad via form 3916 - 3916 bis if you are affected. The 305 € rule can exempt you from tax if the total amount of your sales is low, but remain vigilant regarding the tax threshold. Airdrops, staking, mining, and NFT have specific tax regimes that require special attention.

• To make your task easier, using crypto tax tracking tools like Waltio, Koinly, or Blockpit can be very useful. Do not hesitate to consult a specialized lawyer in case of doubt.

To quickly find out your crypto tax amount, consult the WEEX crypto tax calculator now.

For more info, consult the official page of the Cryptocurrency tax regime from the tax administration.

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