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IFTA fuel tax rates and information for Oklahoma
| Diesel | $0.1600 per gallon |
| Gasoline | $0.1600 per gallon |
Rates effective as of 2025-10-01. Rates are subject to change quarterly.
Abbreviation
OK
Country
United States
Region
South Central
Timezone
Central
When traveling through Oklahoma, you may also need to track miles in these neighboring jurisdictions:
Oklahoma is a member of the International Fuel Tax Agreement (IFTA). Motor carriers operating qualified vehicles in Oklahoma must report all miles traveled and fuel purchased in the state on their quarterly IFTA returns.
Fuel purchased in Oklahoma generates a tax credit at the rate of $0.1600/gallon for diesel. If you travel more miles in Oklahoma 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 OK.