As of 2024, the climate change-related transport tax revenue in Japan is forecasted to slightly decrease annually from 37.35 in 2024 to 37.18 in 2028. This represents a consistent, albeit marginal, decline over the forecasted years, suggesting stable or slightly declining government revenue expectations from this tax stream. The average year-on-year variation over the past two years shows a negligible decline, and the compound annual growth rate (CAGR) over the last five years indicates a similar trend of minimal change.

Future trends to watch for include:

Policy shifts in Japan related to environmental measures which could impact tax rates or implementation.
Technological advancements in transport that may alter tax revenue sources and amounts.
Public sentiment and behavioral changes towards sustainable transport which could influence tax revenue.