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Montana: gas tax

How much state tax you pay on each gallon of gasoline and diesel.

Single detailed source
State gasoline tax33.8¢ per gallon
State diesel tax30.5¢ per gallon

Rates include state excise taxes and per-gallon fees, not the 18.4¢ federal tax or most local taxes. Several states adjust rates every January or July, and some suspended collection for part of 2026.

General information only, not legal, insurance or financial advice. Not affiliated with any government agency. Exceptions can apply. Confirm with the state agency, the court or a licensed professional in Montana.

How Montana compares

33.8¢ ranks 19 of 51 (1 = highest) for state gas tax (cents per gallon).

Lowest 8.9¢Highest 73.6¢

Alaska: 8.9¢ per gallonAKMaine: 31.4¢ per gallonMEVermont: 34.9¢ per gallonVTNew Hampshire: 23.8¢ per gallonNHWashington: 60.2¢ per gallonWAIdaho: 33.0¢ per gallonIDMontana: 33.8¢ per gallonMTNorth Dakota: 23.0¢ per gallonNDMinnesota: 32.7¢ per gallonMNIllinois: 70.4¢ per gallonILWisconsin: 32.9¢ per gallonWIMichigan: 53.4¢ per gallonMINew York: 24.2¢ per gallonNYRhode Island: 41.1¢ per gallonRIMassachusetts: 27.6¢ per gallonMAOregon: 40.0¢ per gallonORNevada: 24.8¢ per gallonNVWyoming: 24.0¢ per gallonWYSouth Dakota: 30.0¢ per gallonSDIowa: 30.0¢ per gallonIAIndiana: 63.1¢ per gallonINOhio: 38.5¢ per gallonOHPennsylvania: 58.7¢ per gallonPANew Jersey: 49.1¢ per gallonNJConnecticut: 25.0¢ per gallonCTCalifornia: 73.6¢ per gallonCAUtah: 32.6¢ per gallonUTColorado: 30.2¢ per gallonCONebraska: 32.7¢ per gallonNEMissouri: 30.0¢ per gallonMOKentucky: 26.4¢ per gallonKYWest Virginia: 35.7¢ per gallonWVVirginia: 42.4¢ per gallonVAMaryland: 46.8¢ per gallonMDDelaware: 23.0¢ per gallonDEArizona: 19.0¢ per gallonAZNew Mexico: 18.9¢ per gallonNMKansas: 25.0¢ per gallonKSArkansas: 25.0¢ per gallonARTennessee: 27.4¢ per gallonTNNorth Carolina: 41.2¢ per gallonNCSouth Carolina: 28.7¢ per gallonSCDistrict of Columbia: 35.7¢ per gallonDCOklahoma: 20.0¢ per gallonOKLouisiana: 20.9¢ per gallonLAMississippi: 24.4¢ per gallonMSAlabama: 31.0¢ per gallonALGeorgia: 34.1¢ per gallonGAHawaii: 18.5¢ per gallonHITexas: 20.0¢ per gallonTXFlorida: 40.1¢ per gallonFL
  • 8.9¢ – 24¢ (11)
  • 24.2¢ – 28.7¢ (10)
  • 30¢ – 32.9¢ (10)
  • 33¢ – 41.1¢ (10)
  • 41.2¢ – 73.6¢ (10)

Also for Montana: Car insurance by state in Montana · Claim deadlines in Montana · Small claims limits in Montana · Total loss rules in Montana · Shared fault rules in Montana · Accident reporting rules in Montana · Lemon law rules in Montana · Sales tax rates in Montana · Phone-while-driving laws in Montana · Motorcycle helmet laws in Montana · Uninsured drivers in Montana · All Montana rules on one page

How we checked this

Rates come from the Tax Foundation's July 2026 table of state gasoline and diesel taxes, which combines excise taxes and per-gallon fees. Last checked: November 12, 2026. Laws change; confirm with the state agency or a licensed professional before acting.

Cross-checked sources agree   Checked on official source confirmed on a government, court or legislature site   Single detailed source one detailed table built from statutes or official data   Under review sources disagree; read the note and the law.