The carbon tax is one of the most discussed — and most misunderstood — economic instruments of French climate policy. Between the TICPE, the European carbon market (EU ETS), and the debate over a carbon price floor, the subject deserves a closer look. Here is a comprehensive explanation of how the carbon tax works in France, its history, and its stakes.
What is a carbon tax?
A carbon tax is a mandatory levy on greenhouse gas emissions, expressed in euros per tonne of CO2 equivalent. Its economic principle is simple: by increasing the cost of polluting activities, it incentivizes businesses and households to reduce their emissions. This is what economists call the internalization of externalities: making polluters pay the true social cost of their pollution.
There are two main forms of carbon pricing:
- A direct carbon tax: a fixed price per tonne of CO2, applied to fossil fuels
- A cap-and-trade system: a global emissions cap is set, and companies trade emission allowances whose price is determined by the market
France uses both mechanisms, often in complementary ways.
The TICPE: France's main carbon tax
The TICPE (Taxe Interieure de Consommation sur les Produits Energetiques), or Domestic Consumption Tax on Energy Products, is the main form of carbon tax in France. It applies to gasoline, diesel, domestic heating oil, and other fossil fuels. Long perceived solely as a fuel tax, the TICPE has progressively incorporated an explicit carbon component.
The carbon component of the TICPE
Since 2014, the TICPE has included a "carbon contribution" whose amount is theoretically linked to the price of CO2. This component rose from 7 euros per tonne in 2014 to 44.6 euros per tonne in 2018, before being frozen following the Yellow Vests crisis. In 2024, France collects approximately 37 billion euros per year through the TICPE, of which a portion represents the carbon component.
- Rate on gasoline (SP95-E10): approximately 0.69 euros per liter
- Rate on diesel: approximately 0.59 euros per liter
- Rate on domestic heating oil: approximately 0.16 euros per liter
The Yellow Vests crisis: when the carbon tax derailed
In 2018, the Macron government planned to raise the TICPE's carbon component to 86 euros per tonne by 2022 and even 100 euros by 2030. This planned increase schedule ignited protests in the fall of 2018, triggering the Yellow Vests movement.
The protests highlighted a deep divide: for households in rural and peri-urban areas, dependent on cars to get to work, a sharp increase in fuel prices represented a significant budget increase with no credible alternative. The carbon tax was perceived as socially unjust — hitting hardest those who could not afford to switch vehicles or move closer to public transport.
"An effective carbon tax must be accompanied by a redistribution mechanism that compensates the impact on the most modest households. Without a carbon dividend, it is economically efficient but politically untenable."
— Christian de Perthuis, economist, professor at Paris-Dauphine, 2023
The government ultimately froze the carbon component increase in December 2018, where it has remained since. France has not established a new planned increase trajectory since then.
The EU ETS: the European carbon market
Alongside the TICPE, France participates in the European Union Emissions Trading System (EU ETS), established in 2005. This mechanism primarily covers large industrial installations (cement plants, steel mills, refineries) and, since 2012, intra-European aviation.
How the EU ETS works
- An overall emissions cap is set for all covered installations
- Emission allowances are distributed or auctioned
- Companies that emit less can sell their surplus allowances
- Those that emit more must purchase additional allowances
- The allowance price fluctuates based on supply and demand
The evolution of the European carbon price
After years of very low prices (less than 10 euros per tonne), the EU ETS allowance price rose sharply:
- 2020: approximately 25 euros/tonne
- 2021: approximately 50 euros/tonne
- 2022: peak at 100 euros/tonne (historic record)
- 2023-2024: fluctuating between 55 and 75 euros/tonne
This increase has had a real incentive effect on European industry, which is investing heavily in decarbonization to reduce its allowance purchases.
Extending the EU ETS to transport and buildings
The EU ETS reform adopted in 2023 as part of the "Fit for 55" package provides for the creation of a second allowance system (ETS2) covering road transport and building heating. This new market will come into effect in 2027 and will directly affect households through fuel and heating oil prices.
To mitigate the social impact, a Social Climate Fund of 87 billion euros will be created at the European level, designed to help vulnerable households finance their transition (insulation, switch to electric mobility, etc.).
The debate over a carbon price floor
A carbon price floor is a guaranteed minimum price below which the allowance cannot fall. This idea, championed by many economists, aims to give businesses visibility to invest in decarbonization without fearing a collapse in the carbon price.
France has supported this idea at the European level, without success so far. Some economists propose introducing this mechanism unilaterally at the national level, coupled with a border adjustment mechanism to avoid disadvantaging French companies against their foreign competitors.
The carbon tax and offsetting: two complementary tools
The carbon tax acts on producers and consumers through prices. Voluntary carbon offsetting allows individuals and businesses to go further by directly financing emission reduction projects. These two mechanisms are complementary, not competing.
To understand how the carbon credit markets underpinning voluntary offsetting work, see our article on how the carbon credit market works. And for companies looking to integrate offsetting into their CSR strategy, our guide on carbon offsetting for businesses in 2025 is a useful reference.
Conclusion: the carbon tax, a necessary but insufficient tool on its own
The carbon tax is a powerful economic tool for steering behavior toward decarbonization. But the French experience shows that it cannot work without social support, without credible alternatives to the behaviors it aims to discourage, and without clear communication about its objectives. The future of carbon taxation in France probably lies in a comprehensive overhaul: a progressive carbon price, full redistribution to households in the form of a "green check," and a predictable ten-year transition schedule. A political challenge as much as an economic one.