Arizona Gas Tax
Arizona’s state taxes and fees on gasoline total 19.0¢ a gallon, the 4th-lowest of 51; with the 18.4¢ federal tax, drivers pay 37.4¢ a gallon in combined tax. Rates are from U.S. Energy Information Administration data as of July 2026.
What makes up Arizona’s 37.4¢
| Arizona state excise tax | 18.0¢ |
|---|---|
| Other Arizona taxes & fees sales/use taxes, inspection and environmental fees | 1.0¢ |
| Total Arizona state tax | 19.0¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 37.4¢ |
Storage Tank tax: $0.0100/gal. "Use Class motor vehicle" diesel rate = $0.2600/gal
Arizona's tax: a flat rate set in 1991
Arizona charges a flat 18.0¢ a gallon on gasoline and a one-cent storage tank tax that funds cleanup of leaking underground tanks. Diesel for commercial “use class” vehicles is taxed at 26¢ a gallon, a rate unchanged since 1993. There is no percentage-based tax on fuel and no local option fuel tax listed by the EIA.
The gasoline rate has not changed since 1991, and it is not indexed to inflation or construction costs. Proposals to raise it have been introduced in the legislature, including a 2018 bill that would have doubled it, but none has passed. The rate’s purchasing power has therefore fallen steadily as road costs and general prices have risen.
Arizona’s total state tax of 19.0¢ a gallon is the 4th-lowest of the 50 states and D.C., against a 51-jurisdiction average of 33.8¢.
How the tax fits with fuel supply and price history is covered on the Arizona gas prices page.
Sources: current rates and rankings are from the EIA motor fuel tax table in our database; other facts are from the sources listed here.
Arizona beside its five neighbors
Of the five states that border Arizona, only New Mexico has a lower state gasoline tax, at 18.9¢ a gallon against Arizona’s 19.0¢. Nevada’s is 23.8¢, Colorado’s 30.2¢ and Utah’s 38.6¢. California, across the Colorado River, charges 73.6¢, the highest state rate in the country and nearly four times the Arizona figure. Nevada’s number also leaves out county fuel taxes, which the EIA marks as allowed there, so the real step up toward Las Vegas is larger than the table shows.
Almost all of Arizona’s tax is the per-gallon excise of 18.0¢; the underground storage tank charge adds 1.0¢. Put the federal 18.4¢ on top and the combined rate comes to 37.4¢. The state’s part of that is only slightly more than half, one of the smallest state shares in the table, because Arizona’s own rate is barely higher than the federal one.
The average state tax across the 50 states and the District is 33.8¢. Arizona is well below it, the 4th-lowest of 51. With no indexing in the EIA listing for Arizona, that distance grows each time another state raises or indexes its own rate, and shrinks only if the legislature acts.
Figures in this section are computed from U.S. Energy Information Administration data in the US Gas Gauge database.
Arizona's Gasoline Tax Beside Its Neighbors
In the EIA's July 2026 table, 3 jurisdictions have a lower state total than Arizona's 19.0¢, and 47 have a higher one. Alaska's 9.0¢ (EIA table, July 2026) is the lowest state total listed, and California's 73.6¢ is the highest. Arizona's total is 14.8¢ (EIA table, July 2026) below the 33.8¢ average for the 50 states and D.C.
Among bordering states, 4 of 5 have a higher state total than Arizona in the EIA's July 2026 table. Arizona's total is 54.6¢ (EIA table, July 2026) below California's, and it is 19.6¢ below Utah's 38.6¢. It is 11.2¢ (EIA table, July 2026) below Colorado's 30.2¢, and it is 4.8¢ below Nevada's 23.8¢. New Mexico's 18.9¢ (EIA table, July 2026) is the lowest among the bordering states, and Arizona's total is 0.1¢ above New Mexico's.
In the EIA's July 2026 table, excise is 95% of Arizona's state total. The 1.0¢ (EIA table, July 2026) of other state taxes and fees is what remains of the 19.0¢ after the 18.0¢ excise. Set beside the federal 18.4¢ (EIA table, July 2026), the state's 19.0¢ makes up 51% of the 37.4¢ combined figure.
The 19.0¢ (EIA table, July 2026) counts state taxes of general application; county and local taxes are excluded from the EIA figures.
How much of a gallon in Arizona is tax
Arizona gasoline is estimated at $5.10 a gallon. Against that, the 37.4¢ of combined state and federal tax is about 7.3% of what a driver pays — with local taxes, where they apply, on top.
Tax rate from EIA as of July 2026; pump price is this week’s US Gas Gauge estimate from EIA regional prices (EIA publishes no weekly average for Arizona).
Arizona vs. the other 50 states
Arizona’s state gas tax of 19.0¢ is 14.8¢ below the 33.8¢ average across 50 states and D.C. — it is the 4th-lowest.
Neighboring states' gas tax
| State | State tax | vs. Arizona |
|---|---|---|
| California gas tax | 73.6¢ | +54.6¢ |
| Utah gas tax | 38.6¢ | +19.6¢ |
| Colorado gas tax | 30.2¢ | +11.2¢ |
| Nevada gas tax | 23.8¢ | +4.8¢ |
| New Mexico gas tax | 18.9¢ | −0.1¢ |
Arizona gas tax, answered
- What is the gas tax in Arizona?
- 19.0¢ a gallon in state taxes and fees; with the 18.4¢ federal tax, 37.4¢ (EIA, July 2026).
- How does Arizona's gas tax compare to other states?
- The 4th-lowest of the 50 states and D.C.; the average is 33.8¢.
- What is the federal gas tax in Arizona?
- The federal gasoline tax is 18.4¢ per gallon in Arizona, the same as in every other state.
- Does Arizona charge local gas taxes too?
- EIA does not flag Arizona as allowing local option taxes.
Related to Arizona gas tax
EIA, “Federal and state motor fuels taxes” (July 2026 (revised August 2026)); how these figures are built.
More Arizona data
Use this data
Download: Gas tax by state, federal + state rates (CSV).
Column definitions, coverage and every file: gas price data. Free to reuse under CC BY 4.0 with credit.
Cite as: US Gas Gauge, “Arizona Gas Tax,” usgasgauge.com/gas-tax/arizona. Source data: U.S. Energy Information Administration.