ATMB: tolls for motorhomes and caravans
ATMB (Autoroutes et Tunnel du Mont-Blanc), a majority publicly owned company, runs the A40 "Autoroute Blanche" towards Chamonix, part of the A41, and the Mont Blanc tunnel with its Italian partner.
Key figures
- Group
- Majority publicly owned
- Motorways
- A40, A41, RN205
- Class 2 compared with class 1
- ×1.724worked out from the official grid (Viry – Bellegarde)
- Classes 3 and 4
- ×2.603 and ×3.483
- Increase on 1 February 2026
- +0.62 %
- Barrier-free tolling (free flow)
- No
· Révision des tarifs au 1er février 2026 (ATMB), Tarifs du tunnel du Mont-Blanc (ATMB), Flux libre sur l'A40 (ATMB)
What to know with a motorhome or a caravan
- No 2026 increase for classes 1 and 2 on the motorway: motorhomes and caravan outfits pay the same as in 2025.
- The Mont Blanc tunnel is paid separately: €73.40 one way in class 2 from France (€92.30 return), and electronic toll tags are not accepted.
- Barrier-free tolling is planned for 2027 on the A40, between Passy and Annemasse.
Trips on this network
Which class are you?
Set your vehicle's height and add what is on the roof: the height gauge gives your official class and the risk of being overclassed.
Frequently asked questions
How much does class 2 cost on the ATMB network?
About 1.724 times the car rate, according to the official grid on Viry – Bellegarde. The tariff order sets no coefficient for this company: it varies between sections.
Did ATMB tolls go up in 2026?
Yes: the mark-up rate set on 1 February 2026 is 0.62%.