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IFTA fuel tax rates and information for Iowa
| Diesel | $0.3250 per gallon |
| Gasoline | $0.3000 per gallon |
Rates effective as of 2025-10-01. Rates are subject to change quarterly.
Abbreviation
IA
Country
United States
Region
Midwest
Timezone
Central
When traveling through Iowa, you may also need to track miles in these neighboring jurisdictions:
Iowa is a member of the International Fuel Tax Agreement (IFTA). Motor carriers operating qualified vehicles in Iowa must report all miles traveled and fuel purchased in the state on their quarterly IFTA returns.
Fuel purchased in Iowa generates a tax credit at the rate of $0.3250/gallon for diesel. If you travel more miles in Iowa 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 IA.