Public Roads: A Journal of Highway Research, Vol. 5, No. 7

Trumbower, Henry R.; Harrison, J. L.; Ladd, George E.; Goldbeck, A. T.; Clark, G. G. · 1924 · ROSA P / United States. Government Printing Office

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Summary

This 1924 article by Henry R. Trumbower, published in the *Journal of Highway Research*, analyzes the evolution of motor vehicle taxation in the United States from 1901 to 1923. The study addresses the shift in state licensing policies from simple regulatory measures based on police power to complex revenue-generating systems designed to fund highway construction and maintenance. As automobile registrations surged from approximately 294,000 in 1909 to over 15 million in 1923, total license fee revenues grew to nearly $189 million annually, with the average fee per vehicle rising from $3.20 to $12.50. Trumbower examines the structural changes in licensing methods through historical data and state-by-state comparisons. Initially, most states employed flat-rate fees or simple horsepower classifications. By 1924, nearly all states had adopted variable fee structures based on factors such as horsepower, vehicle weight, gross weight, cost, or combinations thereof. The analysis highlights a significant divergence in taxation between passenger cars and motor trucks. While passenger car fees remained relatively moderate, truck fees increased dramatically to reflect their greater impact on road damage. By 1924, average license fees for a 5-ton truck had increased nearly 1,600 percent compared to 1914 levels, whereas passenger car fees saw more modest increases. The study details how states began classifying trucks by capacity, weight, and tire type to ensure fees corresponded to the wear and tear caused by commercial vehicles. The findings reveal substantial geographic and policy variation in fee structures. Eastern states generally charged higher average fees than Western states, though exceptions existed. For instance, New Hampshire collected an average of $26.36 per vehicle, while Arizona collected only $5.73. The article notes that motor truck fees varied widely, with some states charging less than $120 for a 5-ton truck and others charging over $400. In states where data was segregated, average motor truck fees were 69 percent higher than passenger car fees on average, with New Jersey showing the largest differential at 191 percent. The research also tracks the allocation of these revenues, noting that by 1924, most states directed motor vehicle funds to highway departments or counties for road maintenance, moving away from depositing them into general state funds. The significance of this work lies in its documentation of the foundational shift in American transportation policy. It illustrates how states moved from viewing vehicle registration as a nominal privilege tax to recognizing it as a critical tool for financing infrastructure. The development of differentiated fee structures, particularly for heavy trucks, established the precedent for user-pays principles in highway funding. This historical analysis provides essential context for understanding the origins of modern motor vehicle taxation and the economic mechanisms used to support the expanding national highway system.

Key finding

Average annual motor vehicle license fees per registered vehicle increased from $3.20 in 1909 to $12.50 in 1923, while average fees for motor trucks rose by up to 1,600 percent between 1914 and 1924 due to the adoption of weight and capacity-based classification systems.

Methodology

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