Taxes with environmental relevance in the six billion

In 2025, environmental taxes in Portugal reached approximately six billion euros, accounting for 5.5% of total tax revenue. This represents a 1.6% increase from 2024, while overall tax revenue grew by 6.8%. The rise in environmental taxes is primarily attributed to the increase in the tax on petroleum and energy products (ISP), which rose by 260 million euros due to changes in carbon tax rates and the end of certain exemptions. Despite the increase in revenue, the relative importance of these taxes in the fiscal system decreased slightly. Taxes on energy constituted 75.1% of environmental taxes, while transport taxes gained relative importance. Overall, the share of environmental taxes in GDP was the lowest since 1995, at 1.9%. Environmental fees also increased, driven by higher waste management charges.