California Gas Tax Increases In 2025 And 2026. California’s gas tax has more than doubled since june 2017, according to caltax, and it is set to increase again in july, from 57.9 cents per gallon to 59.6 cents. On monday, the average cost per gallon in.
The tax increase then and the inflationary adjustments since have pushed california’s total tax to nearly 70 cents per gallon — by most accounts the nation’s highest. California is poised to make a significant change to its gas tax policy — potentially raising the price of diesel by an average of $0.47 per gallon and gasoline by an average of.