The forecasted air pollution-related total tax revenue in Italy remains stable from 2024 to 2027 at 2.71% of GDP, showing no year-on-year variation. A slight reduction to 2.7% of GDP is expected in 2028, indicating minimal fluctuation. Former trends from 2023 are not available for comparative analysis on percentage terms; however, the stability over the forecasted period suggests a flat trend with an almost negligible negative compound annual growth rate (CAGR) over the last five years.

Future trends to watch:

Policy changes impacting pollution tax frameworks
Technological advancements reducing air pollution
Shift in economic factors affecting GDP share derived from pollution tax revenues