Should Electric Vehicle Drivers Pay a Mileage Tax?

Lucas W. Davis, James M. Sallee

Chapter in NBER book Environmental and Energy Policy and the Economy, volume 1 (2020), Matthew J. Kotchen, James H. Stock, and Catherine D. Wolfram, editors (p. 65 - 94)
Conference held May 16, 2019
Published in February 2020 by University of Chicago Press
© 2020 by the National Bureau of Economic Research
in NBER Book Series Environmental and Energy Policy and the Economy

In many countries the revenue from gasoline taxes is used to fund highways and other transportation infrastructure. As the number of electric vehicles on the road increases, this raises questions about the effectiveness and equity of this financing mechanism. In this paper, we ask whether electric vehicle drivers should pay a mileage tax. Though the gasoline tax has been traditionally viewed as a benefits tax, we take instead the perspective of economic efficiency. We derive a condition for the optimal electric vehicle mileage tax that highlights a key trade-off. On the one hand, there are externalities from driving including traffic congestion and accidents that imply a mileage tax is efficient. On the other hand, gasoline tends to be underpriced, so a low (or even negative) mileage tax might have efficiency benefits in encouraging substitution away from gasoline-powered vehicles. We then turn to an empirical analysis aimed at better understanding the current policy landscape for electric vehicles in the United States. Using newly available nationally-representative microdata we calculate that electric vehicles have reduced gasoline tax revenues by $250 million annually. We show that the foregone tax revenue is highly concentrated in a handful of states and is highly regressive, as most electric vehicles are driven by high-income households, and we discuss how this motivates and informs optimal policy.

This chapter is no longer available for free download, since the book has been published. To obtain a copy, you must buy the book.

You may be able to access the full text of this document via the Document Object Identifier.

Machine-readable bibliographic record - MARC, RIS, BibTeX

Document Object Identifier (DOI): 10.1086/706793

This chapter first appeared as NBER working paper w26072, Should Electric Vehicle Drivers Pay a Mileage Tax?, Lucas W. Davis, James M. Sallee
NBER Videos

National Bureau of Economic Research, 1050 Massachusetts Ave., Cambridge, MA 02138; 617-868-3900; email:

Contact Us