French lawmakers this week narrowly approved a measure that will subject gains from swapping cryptocurrency into stablecoins to the country’s 31.4% capital gains levy, starting January 2027. Amendment I-3898 removes the tax deferral that previously applied to trades involving MiCA-compliant stablecoins, closing what some legislators viewed as a loophole that allowed investors to park profits in dollar-pegged tokens without triggering a taxable event. The move is a significant shift for European crypto markets and a signal that regulators are now looking beyond the initial wave of framework creation.
The debate in parliament exposed genuine disagreements about how to treat stablecoins. Critics argued that stablecoins are fundamentally different from fiat currency and that taxing swaps into them could discourage legitimate use of the technology for payments and hedging. Supporters countered that the deferral undermined the principle that gains should be taxed when an investor realises them in a form that can be spent. The compromise — a delayed implementation and a switch from a portfolio-based calculation to a weighted average cost basis — suggests lawmakers heard the industry’s concerns, even if the final outcome leans toward a stricter interpretation.
For investors, the change means that the common strategy of rotating volatile crypto holdings into a stablecoin to lock in gains will now crystallise a tax liability in France. That could encourage longer holding periods or push activity to jurisdictions with more favourable treatment. On balance, however, this kind of clarity — even if unwelcome in the short term — is part of a maturing regulatory environment. Europe’s MiCA framework already provided a unified rulebook; this tax amendment shows that the rules are now being enforced consistently. The challenge for the industry will be to adapt its products and advice accordingly, rather than fight the direction of travel.