California Gas Tax Increase July 1 2024 Update. 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 $0.37 per. California's gas tax goes up each year on july 1 — and 2024 is no exception.

California will see a further increase in gas taxes by 2 cents per gallon starting july 1, bringing the tax to nearly 60 cents per gallon. As of july 1, 2024, california raised its gasoline excise tax from 57.9 cents to 59.6 cents per gallon.