State gas taxes · EIA figures for July 2026
Wisconsin gas tax
The 21st highest state gas tax of 51, and 0.9¢ below the state average. With the 18.4¢ federal tax, Wisconsin drivers pay 51.30¢ a gallon in fuel tax, about 13% of this week's price.
What makes up the tax on a gallon
| State excise tax | 30.90¢ |
|---|---|
| Other state taxes and fees | 2.00¢ |
| Federal excise tax | 18.40¢ |
| Total per gallon | 51.30¢ |
| On a 15-gallon fill | $7.70 |
| Over a typical year (480 gallons) | $246 |
| Regular gas this week | $4.072 |
From the EIA’s notes for Wisconsin: Petroleum Inspection fee: $0.0200/gal.
Source: EIA federal and state motor fuel taxes, July 2026. The federal rate has not changed since 1993. County and city taxes are not included, so some drivers pay a little more.
Fuel tax in Wisconsin and its neighbours
Across the line in Iowa, state tax is 2.9¢ a gallon lower, which is $0.43 less tax on a 15-gallon fill.
| State | State tax | Versus WI | On a 15-gal tank |
|---|---|---|---|
| Iowa | 30.0¢ | −2.9¢ | −$0.43 |
| Minnesota | 32.7¢ | −0.2¢ | −$0.03 |
| Wisconsin | 32.9¢ | — | — |
| Michigan | 53.4¢ | +20.5¢ | +$3.08 |
| Illinois | 71.7¢ | +38.8¢ | +$5.82 |
Where Wisconsin sits in the ranking
| 19. Montana | 33.75¢ |
|---|---|
| 20. Idaho | 33.00¢ |
| 21. Wisconsin | 32.90¢ |
| 22. Minnesota | 32.70¢ |
| 23. Nebraska | 32.70¢ |
Ranked by total state tax per gallon, highest first. See all 51 ranked.
What this means for your driving
Tax is a fixed number of cents on every gallon, so the less fuel you burn, the less of it you pay. A car that gets 30 mpg pays $205 a year in fuel tax over 12,000 miles in Wisconsin; a pickup at 19 mpg pays $324.
Work out a trip or a year of driving with the Wisconsin fuel cost calculator, or see Wisconsin gas prices this week.
Wisconsin gas tax questions
- What is the gas tax in Wisconsin?
- Wisconsin charges 32.90¢ per gallon of gasoline in state tax: 30.90¢ of excise tax plus 2.00¢ in other per-gallon taxes and fees, according to the EIA's table updated July 2026. Add the 18.4¢ federal tax and drivers pay 51.30¢ a gallon in fuel tax.
- How does Wisconsin's gas tax compare with other states?
- It is the 21st highest of 51 (the 50 states and D.C.), and 0.9¢ a gallon below the average state tax of 33.8¢.
- How much gas tax does a Wisconsin driver pay in a year?
- About $246 in state and federal fuel tax for a typical year of 480 gallons (roughly 12,000 miles at 25 mpg), of which $158 goes to the state. A 15-gallon fill carries $7.70 of tax.
- Is gas tax included in the price at the pump?
- Yes. Federal and state per-gallon fuel taxes are built into the price posted on the sign; they are not added at the register. That is why tax differences between neighbouring states show up directly in pump prices.
- Which neighbouring state has a lower gas tax than Wisconsin?
- Iowa has the lowest state gas tax of Wisconsin's neighbours, at 30.00¢ a gallon. That is 2.9¢ less, or $0.43 on a 15-gallon fill.