California considers replacing gas tax with mileage tax

Should drivers be charged by the mile?

California lawmakers are considering replacing the gas tax with a mileage tax in part due to fuel efficiency and the rise of electric cars. 

So far, only three states — Oregon, Utah and Virginia — are generating revenue from road usage charges, despite the looming threat of an ever-widening gap between states’ gas tax proceeds and their transportation budgets. Hawaii will soon become the fourth.

The federal government is about to pilot its own such program, funded by $125 million from the infrastructure measure President Joe Biden signed in November 2021.

Many states have implemented stopgap measures, such as imposing additional taxes or registration fees on electric vehicles and, more recently, adding per-kilowatt-hour taxes to electricity accessed at public charging stations.

But road usage charges — also known as mileage-based user fees, distance-based fees or vehicle-miles-traveled taxes — are attracting the bulk of the academic attention, research dollars and legislative activity.

Electric car sales in the U.S. rose from just 0.1% of total car sales in 2011 to 4.6% in 2021, according to the U.S. Bureau of Labor Statistics. 

Lawmakers passed a bill last month that would have begun early steps toward a program by allowing collection of motorists’ odometer readings on a voluntary basis. Democratic Gov. Jay Inslee vetoed the measure, though, arguing that Washington needs a program in place before starting to collect citizens’ personal data.

The institute has conducted national surveys every year since 2010 and found growing support for mileage-based fees, special rates for low-income drivers and rates tied to how much pollution a vehicle generates, she said.

The Associated Press contributed to this report.