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IFTA fuel tax rates and information for Idaho
| Diesel | $0.3200 per gallon |
| Gasoline | $0.3200 per gallon |
Rates effective as of 2025-10-01. Rates are subject to change quarterly.
Abbreviation
ID
Country
United States
Region
Pacific Northwest
Timezone
Mountain
When traveling through Idaho, you may also need to track miles in these neighboring jurisdictions:
Idaho is a member of the International Fuel Tax Agreement (IFTA). Motor carriers operating qualified vehicles in Idaho must report all miles traveled and fuel purchased in the state on their quarterly IFTA returns.
Fuel purchased in Idaho generates a tax credit at the rate of $0.3200/gallon for diesel. If you travel more miles in Idaho than the fuel you purchased would cover, you'll owe additional tax. If you purchased more fuel than you used, you'll receive a credit.
Use our free calculator to determine your tax liability for ID.