The forecast for air pollution-related transport tax revenue in Germany suggests stability with a steady value of 0.29% of GDP from 2024 to 2027. A slight drop to 0.28% is projected for 2028. This consistent yet minor decline indicates a lack of significant variation in the revenue share relative to GDP.

Future trends to watch for include:

Potential shifts in transport policies aimed at reducing emissions may affect revenue.
Evolving vehicle technologies and an increase in electric vehicle adoption could impact tax revenues.
Any economic fluctuations impacting GDP could influence the measured percentage of transport tax revenue.