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United States · OK
Oklahoma
IFTA fuel tax rates, jurisdiction details, and neighboring states for Oklahoma.
Current tax rates
Diesel
$0.1600/gal
Gasoline
$0.1600/gal
Effective 2026-04-01. Per gallon, USD.
Jurisdiction
Code
OK
Country
United States
Region
South Central
Timezone
Central
Neighboring jurisdictions
Trips through Oklahoma commonly cross into these. Check their rates if you log miles there too.
IFTA in Oklahoma
Oklahoma is a member of the International Fuel Tax Agreement. Carriers operating qualified vehicles in Oklahoma 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/gal/gal for diesel. If you put more miles on the road in Oklahoma than the fuel you purchased there would cover, you owe additional tax. If you purchased more fuel than you used, you receive a credit.
Calculate OK