Even without the increases in the Illinois gas tax now being proposed by state lawmakers, Illinois has the 10th highest state gas taxes in the nation, according to July 2018 numbers from the Washington-based Tax Foundation.
Illinois residents generally pay 37.32 cents per gallon in state taxes on each gallon of gas, the Tax Foundation reports. This includes a 19-cent-per-gallon state excise tax, the 6.25 percent state sales tax and a 1.1-cent levy to fund the Underground Storage Tank Fund, but it excludes the federal excise tax on gasoline amounting to 18.4 cents per gallon, according to the foundation.
In Chicago and Cook County, the overall sales tax is higher due to local add-ons.
Drivers in certain jurisdictions in the state also pay other taxes on gasoline. Chicago imposes a 5-cent-per-gallon tax; Cook County, 6 cents; and McHenry, DuPage and Kane counties, 4 cents, according to the Illinois Manufacturers’ Association.
Some smaller cities also impose taxes on gasoline. These include Bloomington, 4 cents per gallon; Belvidere, 2 cents; and Highland, 2 cents.
Illinois is among only seven states that apply the state sales tax to gasoline, effectively doubling taxation as levies are layered onto one another. The other six states are California, Connecticut, Georgia, Indiana, Michigan and New York.
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Which States Impose the Highest Gas Taxes?
| State | State Taxes and Fees on Gasoline (Cents per Gallon) | Rank |
| Pennsylvania | 58.7 | 1 |
| California | 55.22 | 2 |
| Washington | 49.4 | 3 |
| Hawaii | 47.88 | 4 |
| New York | 45.76 | 5 |
| Michigan | 44.13 | 6 |
| Connecticut | 43.8 | 7 |
| Indiana | 42.9 | 8 |
| Florida | 41.36 | 9 |
| Illinois | 37.32 | 10 |
| New Jersey | 37.1 | 11 |
| Oregon | 36.77 | 12 |
| West Virginia | 35.7 | 13 |
| North Carolina | 35.35 | 14 |
| Maryland | 35.3 | 15 |
| Rhode Island | 34 | 16 |
| Nevada | 33.78 | 17 |
| Idaho | 33 | 18 |
| Wisconsin | 32.9 | 19 |
| Montana | 32.25 | 20 |
| Georgia | 31.59 | 21 |
| Vermont | 31.22 | 22 |
| Iowa | 30.5 | 23 |
| Maine | 30.01 | 24 |
| South Dakota | 30 | 25 |
| Utah | 29.41 | 26 |
| Nebraska | 28.9 | 27 |
| Minnesota | 28.6 | 28 |
| Ohio | 28.01 | 29 |
| Massachusetts | 26.54 | 30 |
| Tennessee | 26.4 | 31 |
| Kentucky | 26 | 32 |
| Kansas | 24.03 | 33 |
| Wyoming | 24 | 34 |
| New Hampshire | 23.83 | 35 |
| Delaware | 23 | 36 |
| North Dakota | 23 | 36 |
| Virginia | 22.4 | 38 |
| Colorado | 22 | 39 |
| Arkansas | 21.8 | 40 |
| Alabama | 20.91 | 41 |
| South Carolina | 20.75 | 42 |
| Louisiana | 20.01 | 43 |
| Oklahoma | 20 | 44 |
| Texas | 20 | 44 |
| Arizona | 19 | 46 |
| New Mexico | 18.88 | 47 |
| Mississippi | 18.79 | 48 |
| Missouri | 17.35 | 49 |
| Alaska | 14.65 | 50 |
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