Crypto Taxes: Everything You Need to Know in 2025

Cryptocurrency taxation is a hot topic in 2025, as more and more people become interested in investing and speculating in this digital universe. The tax implications can be complicated and often overlooked, especially for newbies. Understanding the tax rules that govern cryptocurrencies is essential to avoid potential inconveniences with the tax authorities. This article provides an overview of key tax obligations, transactions to report, and strategies to navigate this complex landscape. Here are the topics that will be covered:

• What are the tax obligations related to cryptocurrencies?
• What is a taxable event?
• What are the triggers for crypto tax?
• The cryptocurrency tax regime.
• How to calculate taxes on cryptocurrencies?
• Different types of transactions in cryptocurrency taxation.
• Crypto scam alert in France 2025.
• When should you file crypto taxes?
• What are the consequences of not paying taxes on cryptocurrencies?
• How to avoid the crypto flat tax in France?

What are the tax obligations related to cryptocurrencies?

Understanding the tax obligations related to cryptocurrencies is fundamental for all investors. In France, there are two main tax obligations that anyone holding cryptocurrencies must respect. These obligations mainly consist of two declarations: that of foreign accounts and that of taxable transactions.

Declaration of accounts abroad (Cerfa 3916-bis)

When we talk about the declaration of cryptocurrency accounts, we are specifically talking about accounts hosted abroad by intermediaries, such as exchangesTo do this, it is necessary to use form 3916-bis to report these accounts. It should be noted that wallets where the individual directly holds their private key, such as Metamask or Ledger, do not require a specific declaration.

• Cerfa form 3916-bis for foreign accounts.
• No declaration is required for wallets with a private key.

Reporting taxable transactions

The second obligation requires taxpayers to report their taxable transactions. Contrary to what one might think, it is not only capital gains that must be taken into account, but all taxable transactions. These transactions must be detailed on form 2086 when preparing the income tax return.

What is a taxable event?

A taxable event is any event or transaction that gives rise to the obligation to pay a tax. When it comes to cryptocurrencies, this concept is essential for determining when and how capital gains become taxable.

The various transactions considered taxable

Generally, taxation is triggered upon the sale or exchange of cryptocurrencies. The following examples illustrate common situations where taxation applies:

• Conversion of cryptocurrencies into fiat currency (such as the euro).
• Purchase of goods or services using cryptocurrencies.

Certain transactions, such as the exchange of cryptocurrencies for other cryptocurrencies, are not considered taxable.

The cryptocurrency tax regime

The tax regime applicable to cryptocurrencies is based on the principle of digital tax neutrality. Essentially, this means that no tax is applied when digital assets are exchanged. However, taxes apply when a conversion into fiat currency is made.

Flat Tax on Capital Gains

Individual investors are generally subject to a 30% tax on realized capital gains. This tax consists of 12.8% income tax and 17.2% social security contributions. For transactions carried out for professional purposes, gains must be declared as non-commercial profits (BNC).

How to Calculate Taxes on Cryptocurrencies

Calculating capital gains on cryptocurrency investments can seem complex. It requires a thorough understanding of the acquisition and disposal values ​​of the assets. The calculation method is based on the following equation:

Sale Price – (Total Net Acquisition Price x Sale Price / Total Portfolio Value Before Sale)

Elements to Consider for the Calculation

For an accurate calculation, several factors must be taken into account:

• The total amount invested in fiat currency.
• The date of each transaction.
• The total value of the portfolio at the time of each transaction.

Each transaction must therefore be assessed independently to determine the capital gain or loss.

Different Types of Transactions in Cryptocurrency Taxation

Cryptocurrency transactions are not limited to sales or exchanges. There are several categories of transactions, the taxation of which may vary:

• Mining Gains: Considered as BNC, income from this activity must be declared. Staking Gains
• : similar to mining income, subject to the flat tax upon sale. NFT Transactions
• : The classification remains unclear, but are generally subject to similar tax rules for cryptocurrencies. Donations and Airdrops
• : Donations are considered free acquisitions. Transaction Type

As tax return season approaches, online scams related to cryptocurrencies are on the rise. Fraudulent messages are circulating, encouraging users to report transactions to avoid penalties. These scams can lead to the collection of personal or financial data.

It is essential to be extremely vigilant. To protect your data, never share sensitive information and always use official tax administration channels. When do you have to file your crypto taxes?

Cryptocurrency income is declared during the tax return season, generally between April and June in France. For the 2024 tax year, the deadline is April 10, 2025.

Deadlines by Department

Zone

Declaration Deadline

How to avoid the crypto flat tax in France? There are several strategies to minimize the tax burden associated with cryptocurrencies:

Convert cryptocurrencies into stablecoins, thus exempting them from the flat tax as long as no conversion to fiat currency is made.

Report cryptocurrency losses to offset gains.

Account for transaction fees to reduce the tax base.

• Use specialized tax software to assist with reporting.
• Tax optimization can be complex, but it is essential for all cryptocurrency investors. Consulting a Crypto Advisor is often recommended to navigate these obligations.
• FAQ
• When should I report my crypto assets?

Reports must be filed during the tax return period, generally from May to June. Which CUBIR forms are required? You must complete Form 3916 bis for foreign accounts, and Form 2086 to report capital gains or losses.

Is it legal to receive your salary in crypto? In France, salaries must include a minimum amount in fiat currency, although portions can be paid in cryptocurrencies.

What is the crypto flat tax?

This is a tax on sales gains at an overall rate of 30% for individuals.

What are the cryptocurrency scams?

Scams are mainly characterized by fraudulent messages encouraging people to report transactions under false pretenses.