In 2023, Japan's tax expenditure on natural gas stood at approximately $340 million USD (constant 2020). The forecasted data for 2024 to 2028 show a steady, albeit slow, increase in expenditure from $342.36 million USD to $348.12 million USD. This reflects a year-on-year growth of nearly 0.5%. The compound annual growth rate (CAGR) over these years is approximately 0.43%, indicating a consistent trend.

Future trends to watch for:

Policy changes affecting natural gas taxes in Japan.
Technological advancements influencing energy consumption and efficiency.
Global shifts towards renewable energy impacting natural gas demand and expenditure.