Road tax, formally called vehicle excise duty in the UK or registration fees elsewhere, funds the maintenance and improvement of road infrastructure. The revenue supports pothole repairs, road resurfacing, safety improvements, and the construction of new routes. These taxes also contribute to traffic management systems, road signage, and regulatory enforcement like vehicle inspections. In some jurisdictions, road tax revenue goes toward public transportation alternatives and environmental initiatives, such as subsidizing electric vehicles or funding cycling infrastructure. The amount collected varies by vehicle type and engine emissions in many countries, reflecting policy goals around environmental impact. However, road tax typically covers only a portion of total road maintenance costs—most funding comes from general taxation, fuel duties, and tolls. This multi-source approach exists because roads serve the entire economy and society, not just individual vehicle owners. Road tax ensures that vehicle owners contribute proportionally to infrastructure wear and upkeep, while general taxes fund roads as a public good that benefits everyone through commerce, emergency services, and economic activity.