In 2023, air pollution-related total tax revenue in Italy was 6.27% of total tax revenue. The forecast for 2024 maintains this value at 6.27%. Predictions indicate a gradual decrease to 6.25% by 2028. The year-on-year variation is 0% from 2023 to 2024, -0.16% from 2024 to 2025, and stabilizes at 0% through 2027 before slightly declining to -0.16% from 2027 to 2028. The compounded annual growth rate (CAGR) from 2024 to 2028 is approximately -0.08%, showing a stable but slightly declining trend.

Key future trends to watch for include:

Economic and regulatory changes that may influence air pollution tax policies.
Technological advancements in pollution reduction methods potentially affecting taxable outputs.
Public awareness and pressure leading to policy enhancements for emission reductions.