Hawaii Gas Tax

Hawaii gasoline currently averages $6.23 a gallon. Against that, the 36.9¢ of combined state and federal tax is about 5.9% of what a driver pays — with local taxes, where they apply, on top.

Tax rate from EIA as of July 2026; pump price is the current EIA weekly average. The two are published on different schedules, so the share moves as prices move even when the tax does not.

Hawaii’s state gas tax of 18.5¢ is 15.3¢ below the 33.8¢ average across 50 states and D.C. — the 50th-highest, or equivalently the 2nd-lowest.

What is the gas tax in Hawaii?

Hawaii charges 18.5¢ per gallon in state gasoline taxes — 16.0¢ of state excise tax plus 2.5¢ in other state taxes and fees. Adding the 18.4¢ federal tax brings the total to 36.9¢ per gallon, according to U.S. Energy Information Administration data as of July 2026. These are state and federal taxes only and exclude county and local taxes.

How does Hawaii's gas tax compare to other states?

Hawaii's state gasoline tax of 18.5¢ per gallon ranks 50th-highest of the 50 states and D.C. that EIA lists, against an average of 33.8¢. The highest is California at 73.6¢ and the lowest is Alaska at 8.9¢.

What is the federal gas tax in Hawaii?

The federal gasoline tax is 18.4¢ per gallon in Hawaii, the same as in every other state — 18.3¢ of excise tax plus a 0.1¢ Leaking Underground Storage Tank fee. It has been unchanged since 1993.

How much of the price of gas in Hawaii is tax?

With Hawaii gasoline averaging $6.23 per gallon, the 36.9¢ of combined state and federal tax is about 5.9% of the pump price. Local taxes, where they apply, are on top of that.

Does Hawaii charge local gas taxes too?

Yes — EIA flags Hawaii as a state where local option taxes are allowed, so some counties and cities add their own tax on top of the 18.5¢ state rate. EIA's table covers state taxes of general application and excludes county and local taxes, so a driver in some Hawaii cities pays more than the figure shown here.