Montana Department of Transportation

Malcolm “Mack” Long, Director


View the Governor’s Coronavirus Task Force site for more information.

Main Content


Fuel Taxes


Every time you put fuel in your vehicle, motorcycle, truck or airplane, the price per gallon of fuel includes fuel taxes. Those taxes are collected and remitted to the state of Montana. The monies are used to support and maintain a safe transportation system across Montana.

ATTENTION: Diesel Fuel Users
Please be advised that the National and State Covid-19 Emergency Declaration does not include the ability to use non-taxed diesel fuel (dyed diesel) in motor vehicles traveling on public roads and highways. Using dyed diesel on Montana roadways could be result in a penalty not to exceed $1,000.00 for a first offense and $5,000.00 for a second offense.


Report Fuel Tax Evasion

1-888-383-5529 (1 888 FUEL LAW)

Fuel Tax Refunds

Applications & Assistance
406-444-7664 |

Audit Services

406-444-7609 |

Montana Fuel Tax Information

Alcohol Tax Incentive, Biodiesel Tax Information, Contractors, Distributor Reporting, Distributor Licensing & Bonding, General Fuel Tax Questions, Fuel Tax Laws, and Fuel Tax Legislation

  • 406-444-0806 |

For Appeals, please call:

  • 406-444-7276 |

Dyed Fuel Toll-free Tip Line

  • 1-888-383-5529 |

International Fuel Tax Agreement (IFTA)

  • Licensing - Motor Carrier Services, 406-444-2998
  • Reporting - Fiscal Operations Bureau, Motor Fuel Section, 406-444-7664 |