California’s Gasoline Tax Burden Surpasses All Other States

Author : Sandra Grey
Published : 20/09/2026

Why is California's gasoline tax considered the highest in the US?

California's gasoline tax is the highest due to its unique tax structure and additional fees that contribute to the overall cost at the pump.

California has the highest gasoline tax in the U.S., reaching 73.64 cents per gallon, largely due to annual adjustments and a unique fee structure. This results from California's need to fund infrastructure coupled with high environmental costs and reliance on imported oil, which collectively burdens consumers and affects local economies.

California Sets the Highest Gasoline Tax Rate

iCalifornia's gasoline taxes fund highway repair and infrastructure.

Multiple sources agree that California’s gasoline tax is the highest in the nation. The Tax Foundation reports a combined state tax of 73.64 cents per gallon, while other sources cite the excise tax alone at 63.4 cents per gallon after a recent increase. These figures do not include certain local taxes or indirect costs from environmental programs, which can further raise the total at the pump.

StateGasoline Tax (per gallon)Rank
California$0.73641
Illinois$0.70402
Indiana$0.63103
Washington$0.60174
Pennsylvania$0.58705
Alaska$0.089550

iCalifornia imports over 75% of its crude oil.

Sources Disagree on Total Tax Figures

While the Tax Foundation lists California’s total gasoline tax at 73.64 cents per gallon, other sources such as the California Fuel and Convenience Alliance and state government reports cite the excise tax at 63.4 cents per gallon. The discrepancy arises from whether additional state fees and surcharges are included in the calculation. Regardless of the method, all sources agree California’s rate is the nation’s highest.

Annual Adjustments and Policy Drivers

California’s gasoline tax is subject to annual inflation adjustments, which have steadily increased the rate. The most recent adjustment raised the excise tax from 59.6 to 63.4 cents per gallon. Additional fees and surcharges, when included, push the total tax burden even higher. These increases are intended to fund highway repair, maintenance, and other infrastructure projects.

Factors Beyond Taxes Influence Prices

Taxes are only one part of California’s high gasoline prices. The state imports over 75% of its crude oil, much of it from unstable regions, making prices sensitive to global supply disruptions. California’s unique environmental regulations and fuel standards also add to production costs, and the lack of inbound fuel pipelines means all fuel must be shipped in, often taking weeks to arrive and process.

Note California’s gasoline tax figures do not capture all local taxes or indirect regulatory costs, which can further increase the price consumers pay at the pump.

Economic and Infrastructure Consequences

The high gasoline tax is designed to support infrastructure, but California’s regulatory environment has contributed to refinery closures, reducing in-state refining capacity by up to 20%. This not only affects fuel supply but also leads to job losses and reduced local revenues. The combination of high taxes, regulatory costs, and supply chain vulnerabilities creates a challenging environment for both consumers and the energy sector.

State Comparisons Highlight Policy Differences

California’s gasoline tax is more than eight times higher than Alaska’s, the lowest in the country. Other high-tax states, such as Illinois and Indiana, have also raised rates, but none match California’s total burden. These differences reflect each state’s approach to funding transportation and managing environmental policy.

California’s gasoline tax burden stands alone at the top, with no other state matching its rate.

Next Move

Anyone monitoring fuel costs or considering policy reform should watch for future adjustments and the ongoing debate over how California’s tax structure affects both consumers and the broader economy.

California's Gasoline Tax FAQs

Why is California's gasoline tax considered the highest in the US?

California's gasoline tax is the highest due to its unique tax structure and additional fees that contribute to the overall cost at the pump.

What is the current gasoline tax rate in California?

California's gasoline tax rate is 73.64 cents per gallon, which includes state taxes and additional fees.

How do California's gasoline taxes compare to other states?

California has the highest gasoline tax in the U.S., significantly higher than states like Illinois and Indiana, which follow in the ranking.

What are some reasons for the discrepancies in reported gasoline tax figures?

Discrepancies arise from whether additional state fees and surcharges are included in the tax calculation.

How often does California's gasoline tax change?

California's gasoline tax is subject to annual inflation adjustments, which can raise the rate over time.

What impact do California's gasoline taxes have on local economies?

The high gasoline tax supports infrastructure projects but can also lead to job losses and reduced local revenues due to refinery closures.

How does California's reliance on imported oil affect gasoline prices?

California imports over 75% of its crude oil, which makes prices sensitive to global supply disruptions and adds to production costs.