On October 31, 2025, the National Assembly adopted an amendment to the finance bill by 163 votes to 150. If it survives the passage through the Senate and the joint committee, this text will have notable consequences for holders of assets, and particularly for certain Bitcoin holders.
Deposited by MoDem deputy Jean-Paul Mattei and his colleagues, amendment no. I-3379 claims to transform the Real Estate Wealth Tax (IFI) into an « Unproductive Fortune Tax, » encompassing all assets that, according to this same assembly, do not « contribute to economic dynamism or the ecological transition. »
This amendment was then corrected by a sub-amendment, also adopted, which cancels the increase in the entry threshold, initially set at 2 million euros, bringing it back to the 1,300,000 € threshold provided for by the current Real Estate Wealth Tax.This new tax would cover:
- Tangible movable property: Precious objects, works of art, furniture, collector cars, yachts, airplanes, rare coins, and any other tangible movable luxury or non-productive asset.
- « Unproductive » real estate: All real estate not allocated to a professional activity and not meeting exemption criteria (for example, not leased under a lease of at least 12 months with capped rent and energy class A to D).
- Non-productive sums, annuities, and life insurance values: Cash, assimilated financial investments, and life insurance not placed in dynamic unit-linked policies (excluding those mentioned in Article L. 131-1 of the Insurance Code, such as equity or productive real estate funds).
- Assimilated financial investments: Any dormant financial asset or not invested in productive unit-linked policies (for example, excess current accounts or unqualified bonds).
- Digital assets as defined in Article L54-10-1 of the Monetary and Financial Code.
The two texts thus establish a single rate of 1% on the fraction of the taxable net value exceeding 1,300,000 €. For the first time, bitcoins enter the IFI base as inherently « unproductive » assets.
According to the amendment, the value of your bitcoins would be appraised at the market value on January 1 of the tax year (Art. 964 CGI). For the 2026 IFI (declaration in spring 2027), it would therefore be the Bitcoin price on January 1, 2026, that would prevail—regardless of your prior purchases or sales. In case of dispute over this valuation, the administration could require an expert report.
According to the sub-amendment, it is therefore the fraction of the net taxable patrimony exceeding 1,300,000 € that would be taxed. But if your bitcoins are part of a broader portfolio (real estate + cash), they could push you over the threshold.
Note also that the declaration would be mandatory via form 2042-IFI, with an annex for foreign accounts or wallets. If you have delegated custody of your funds to a PSAN, this third party will transmit the information it holds to the tax administration.
To come into effect, the text must first be validated by the Senate and the joint committee. Validation by the Senate should be secured, as in January 2025, the senators had already adopted a similar bill (rejected at the time by the National Assembly). However, an overall agreement on the finance bill remains uncertain.
Note that the amendment was largely adopted thanks to a heterogeneous alliance bringing together mainly the RN, PS, MoDem, and LIOT centrist group deputies.
Sources
Amendment: https://www.assemblee-nationale.fr/dyn/17/amendements/1906A/AN/3379.pdf
Sub-amendment: https://www.assemblee-nationale.fr/dyn/17/amendements/1906A/AN/3910.pdf
