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IFTA fuel tax rates and information for South Carolina
| Diesel | $0.2800 per gallon |
| Gasoline | $0.2800 per gallon |
Rates effective as of 2025-10-01. Rates are subject to change quarterly.
Abbreviation
SC
Country
United States
Region
Southeast
Timezone
Eastern
When traveling through South Carolina, you may also need to track miles in these neighboring jurisdictions:
South Carolina is a member of the International Fuel Tax Agreement (IFTA). Motor carriers operating qualified vehicles in South Carolina must report all miles traveled and fuel purchased in the state on their quarterly IFTA returns.
Fuel purchased in South Carolina generates a tax credit at the rate of $0.2800/gallon for diesel. If you travel more miles in South Carolina 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 SC.