In France, there is a closed toll system with entries and exits. This means that the toll fees have to be paid directly at the respective toll station when leaving toll-bound motorways. The total amount of the toll is determined by routes driven, the vehicle class, and the emission class (this one affects only the toll fee of special toll-settling sections) and can thus vary a lot. Even if there are toll-free routes, these are rare - for most routes, motorways with toll fees are unavoidable.
The special toll-settling sections in France are, for example, the Mont-Blanc Tunnel and the Tunnel du Fréjus, which in turn require a separate handling. You can find further information on this in the table below.