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IFTA fuel tax rates and information for Tennessee
| Diesel | $0.2700 per gallon |
| Gasoline | $0.2700 per gallon |
Rates effective as of 2025-10-01. Rates are subject to change quarterly.
Abbreviation
TN
Country
United States
Region
Southeast
Timezone
Central
When traveling through Tennessee, you may also need to track miles in these neighboring jurisdictions:
Tennessee is a member of the International Fuel Tax Agreement (IFTA). Motor carriers operating qualified vehicles in Tennessee must report all miles traveled and fuel purchased in the state on their quarterly IFTA returns.
Fuel purchased in Tennessee generates a tax credit at the rate of $0.2700/gallon for diesel. If you travel more miles in Tennessee 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 TN.