The air pollution-related energy tax revenue in Japan is projected to slightly decline from 2024 to 2028, with a consistent decrease each year from $35.83 billion in 2024 to $33.96 billion in 2028. Comparing to 2023, the forecast indicates a gradual reduction, reflecting small downward adjustments annually. The year-on-year percentage changes are minor, indicating stability but a negative trend. Over the five-year period, the Compound Annual Growth Rate (CAGR) highlights an average annual decline.

Future trends to watch for include:

Potential policy changes to address air pollution that could influence tax revenues.
Technological advancements in renewable energy reducing dependency on tax-generating energy sources.
Global economic factors affecting energy consumption and related emissions.