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Wisconsin Gas Tax (2026)

Info: About 33.9 cents/gallon in state taxes & fees (30.9c excise + 2c petroleum inspection fee; excise indexed to inflation); excludes the 18.4c federal tax.

InfoVerified May 31, 2026

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Official source: revenue.wi.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Gas Tax in states bordering Wisconsin

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IllinoisConditional
About 66.4 cents/gallon in total state gasoline taxes (48.3c excise + ~17c prepaid sales tax + fees), excludes the 18.4c federal tax; the excise is indexed and adjusts each July 1.
Verified May 31, 2026 · Source: tax.illinois.gov · Full Illinois rule →
IowaInfo
About 30 cents/gallon state gasoline excise (varies slightly by ethanol blend), excludes the 18.4c federal tax.
Verified May 31, 2026 · Source: revenue.iowa.gov · Full Iowa rule →
MichiganConditional
52.4 cents/gallon state motor-fuel tax on gasoline and diesel, effective Jan 1, 2026. Michigan simultaneously stopped charging the 6% sales tax on fuel (Public Act 20 of 2025), so the higher excise replaces it rather than adding to it — Treasury calls it "not a price increase." The rate is recalculated every January (51.0c base, adjusted for inflation, capped at 5%).
Verified Jul 30, 2026 · Source: michigan.gov · Full Michigan rule →
MinnesotaInfo
32.6 cents/gallon state gasoline excise tax, in effect since Jan 1, 2026 - Minnesota adjusts this rate each January 1, so there is no mid-year July change. A 2.0c/gallon petroleum cleanup fee additionally applies during the July-October 2026 filing periods, plus a 0.1c/gallon inspection fee. Excludes the 18.4c federal tax.
Verified Jul 2, 2026 · Source: revenue.state.mn.us · Full Minnesota rule →

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