French Senate Backs Automatic Crypto Tax Data Sharing

The measure fits within DAC8 and the OECD’s CARF framework, which will allow French crypto data to be shared with non-EU tax authorities as well.

• Regulation
• Blockchain
• Wallets

Key Takeaways

• The French Senate approved a bill for the automatic exchange of crypto tax data with foreign tax authorities.
• The proposal falls under CARF and DAC8 and is about sharing already reported data, not creating new crypto taxes.
• The law still has to go through the Assemblée nationale; France is also discussing a separate proposal to tax certain stablecoin gains.

The French Senate voted Tuesday in favor of a bill that allows the automatic exchange of tax data on crypto assets with foreign tax authorities. The proposal passed its first reading and now moves on to the Assemblée nationale. For French crypto holders, this fits into a broader move toward more transparency around crypto income and transactions.

CARF and DAC8

The bill is not about new taxes on crypto assets, but about sharing data that service providers already report. At its core is approval of the multilateral agreement between tax authorities on the automatic exchange of information about crypto assets. Behind that is the OECD’s Crypto-Asset Reporting Framework, or CARF, which was set up to let countries automatically exchange tax information on crypto.

France had already tightened reporting through the 2025 Finance Law, which implemented the EU’s DAC8 directive. Those rules require crypto service providers to pass along customer identities and transaction data to the tax authority, which can then share the information with the country where the user lives. In practice, that means data from a crypto wallet or exchange does not just stay national, but can be shared further through fixed reporting channels.

More Data Across Borders

The new step is especially relevant because the exchange will soon not be limited to the EU. According to the bill, the data can also be sent automatically to tax authorities outside the Union, as long as they take part in the OECD agreement. That puts France in line with an international system meant to make crypto income more visible to tax authorities.

For European crypto users, this matters because the rules are becoming more aligned over time. The European Commission is also working on a central repository for crypto reports, so member states can look up their taxpayers in one place. That makes it easier for national tax authorities to compare data, without immediately adding new rules for investors.

Not a Final Law Yet

The law is not final yet. First, the Assemblée nationale still has to review it, and it is not yet known when that will happen or whether the lower house will make changes. At the same time, the French parliament is already discussing a broader tax package, which also includes a proposal to make gains from converting into certain fiat-backed stablecoins taxable starting January 1, 2027. That proposal is not a law yet either.