Wyoming Gas Tax
Wyoming’s state taxes and fees on gasoline total 24.0¢ a gallon, the 12th-lowest of 51; with the 18.4¢ federal tax, drivers pay 42.4¢ a gallon in combined tax. Rates are from U.S. Energy Information Administration data as of July 2026.
What makes up Wyoming’s 42.4¢
| Wyoming state excise tax | 23.0¢ |
|---|---|
| Other Wyoming taxes & fees sales/use taxes, inspection and environmental fees | 1.0¢ |
| Total Wyoming state tax | 24.0¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 42.4¢ |
License Tax: $0.0100/gal.
A 10-cent increase in 2013
Wyoming’s gasoline tax is a per-gallon excise of 23.0¢ plus a 1¢ license tax, which together make up its 24¢ state rate. Motor fuel is not subject to the sales tax, and the rate is not indexed.
The rate last changed on July 1, 2013, when it rose by 10¢, from 14¢ to 24¢ a gallon, on both gasoline and diesel. Governor Matt Mead signed the increase on February 15, 2013. About two-thirds of the new revenue was directed to the Wyoming Department of Transportation and the rest to cities and counties for local roads. Later proposals to raise it again, including a 15¢ increase considered by the legislature, have not become law.
In the EIA’s July 2026 (revised August 2026) table, Wyoming’s state taxes and fees total 24.0¢ a gallon, the 12th-lowest of the 50 states and D.C., against a 51-jurisdiction average of 33.8¢. Before 2013 its rate was among the lowest in the country. Wyoming pump prices and their comparison with the Rocky Mountain region are on the Wyoming 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.
The lowest rate among Wyoming's neighbors
Every state that borders Wyoming charges more state tax on gasoline. Against Wyoming’s 24.0¢ a gallon, South Dakota charges 30.0¢, Colorado 30.2¢, Nebraska 32.7¢, Idaho 33.0¢, Montana 33.8¢ and Utah 38.6¢.
Utah is the widest gap. Interstate 80 carries traffic between Evanston and Salt Lake City, and on the Utah side of that line the state rate is higher by more than a third of Wyoming’s. Colorado, where Cheyenne and Laramie drivers often head south to Fort Collins and Denver, is closer, but still above. Idaho and Montana are within a cent of each other, and Montana is the only neighbor the EIA flags for local option fuel taxes on top of its state rate.
Wyoming’s total is an excise of 23.0¢ plus a 1.0¢ license tax. Adding the federal 18.4¢ makes a combined 42.4¢, and the state’s share is under three-fifths of it. The 51-jurisdiction average is 33.8¢; Wyoming is below that, the 12th-lowest, and even after the 2013 increase it has the lowest state rate in its corner of the Mountain West.
Figures in this section are computed from U.S. Energy Information Administration data in the US Gas Gauge database.
Wyoming Between California and Alaska
The highest state total in the EIA's July 2026 table is 73.6¢ in California, and the lowest is 9.0¢ in Alaska. In the EIA's July 2026 table, 11 jurisdictions have a lower state total than Wyoming, and 39 have a higher one.
Wyoming's 24.0¢ (EIA table, July 2026) state total is 9.8¢ below the 33.8¢ average across the 50 states and D.C. Of that total, the 23.0¢ excise is 96% and the other state taxes and fees are 1.0¢. Adding the 18.4¢ (EIA table, July 2026) federal tax gives 42.4¢, and the state portion of that combined figure is 57%.
Six states border Wyoming, and all 6 of 6 have a higher state total in the EIA's July 2026 table. Wyoming's total is 6.0¢ (EIA table, July 2026) below South Dakota, 6.2¢ below Colorado, 8.7¢ below Nebraska, 9.0¢ below Idaho, 9.8¢ below Montana and 14.6¢ below Utah. Montana's 33.8¢ (EIA table, July 2026) is the same figure as the all-state average.
The EIA lists state taxes of general application and excludes county and local taxes. The EIA table shows no local option gasoline taxes for Wyoming.
How much of a gallon in Wyoming is tax
Wyoming gasoline is estimated at $4.34 a gallon. Against that, the 42.4¢ of combined state and federal tax is about 9.8% 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 Wyoming).
Wyoming vs. the other 50 states
Wyoming’s state gas tax of 24.0¢ is 9.8¢ below the 33.8¢ average across 50 states and D.C. — it is the 12th-lowest.
Neighboring states' gas tax
| State | State tax | vs. Wyoming |
|---|---|---|
| Utah gas tax | 38.6¢ | +14.6¢ |
| Montana gas tax | 33.8¢ | +9.8¢ |
| Idaho gas tax | 33.0¢ | +9.0¢ |
| Nebraska gas tax | 32.7¢ | +8.7¢ |
| Colorado gas tax | 30.2¢ | +6.2¢ |
| South Dakota gas tax | 30.0¢ | +6.0¢ |
Wyoming gas tax, answered
- What is the gas tax in Wyoming?
- 24.0¢ a gallon in state taxes and fees; with the 18.4¢ federal tax, 42.4¢ (EIA, July 2026).
- How does Wyoming's gas tax compare to other states?
- The 12th-lowest of the 50 states and D.C.; the average is 33.8¢.
- What is the federal gas tax in Wyoming?
- The federal gasoline tax is 18.4¢ per gallon in Wyoming, the same as in every other state.
- Does Wyoming charge local gas taxes too?
- EIA does not flag Wyoming as allowing local option taxes.
Related to Wyoming gas tax
EIA, “Federal and state motor fuels taxes” (July 2026 (revised August 2026)); how these figures are built.
More Wyoming 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, “Wyoming Gas Tax,” usgasgauge.com/gas-tax/wyoming. Source data: U.S. Energy Information Administration.