Iowa Gas Tax
What Iowa and the federal government charge per gallon of gasoline, from U.S. Energy Information Administration data as of July 2026.
What makes up Iowa’s 48.4¢
| Iowa state excise tax | 30.0¢ |
| Other Iowa taxes & fees sales/use taxes, inspection and environmental fees | — |
| Total Iowa state tax | 30.0¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 48.4¢ |
Environmental Protection Charge (EPC): Repealed as of 12/31/16 ($0.0100/gal on petroleum products). Ethanol Blended Gasoline E-15 or Higher is a new fuel group effective 7/1/20. Diesel includes biodiesel B-19 and lower as of 7/1/2024.
How much of a gallon in Iowa is tax
Iowa gasoline currently averages $4.04 a gallon. Against that, the 48.4¢ of combined state and federal tax is about 12.0% 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.
Iowa vs. the other 50 states
Iowa’s state gas tax of 30.0¢ is 3.8¢ below the 33.8¢ average across 50 states and D.C. — the 28th-highest, or equivalently the 24th-lowest.
Iowa gas tax, answered
- What is the gas tax in Iowa?
- Iowa charges 30.0¢ per gallon in state gasoline taxes — 30.0¢ of state excise tax. Adding the 18.4¢ federal tax brings the total to 48.4¢ 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 Iowa's gas tax compare to other states?
- Iowa's state gasoline tax of 30.0¢ per gallon ranks 28th-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 Iowa?
- The federal gasoline tax is 18.4¢ per gallon in Iowa, 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 Iowa is tax?
- With Iowa gasoline averaging $4.04 per gallon, the 48.4¢ of combined state and federal tax is about 12.0% of the pump price. Local taxes, where they apply, are on top of that.
- Does Iowa charge local gas taxes too?
- EIA does not flag Iowa as a state where local option taxes are allowed. Its table covers taxes of general application and excludes county and local taxes in every state, so treat the figures here as state and federal only.
Related to Iowa gas tax
Tax rates from the U.S. Energy Information Administration, “Federal and state motor fuels taxes”, edition July 2026 (revised August 2026) (as of July 2026), published on EIA’s Petroleum Marketing Monthly page and reissued each January and July. EIA lists taxes “of general application … exclusive of county and local taxes”; rates are for gasoline.