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Haul Math

South Carolina IFTA Fuel Tax Rate, 3rd Quarter 2024

South Carolina's IFTA diesel rate for the 3rd quarter of 2024 is $0.2800 per gallon, unchanged from Q2 2024.

South Carolina rate for Q3 2024

Special diesel, Q3 2024

$0.2800

per US gallon, unchanged from Q2 2024

Diesel tax rate
$0.2800/gal
Surcharge
None listed
Quarter
Q3 2024, from Jul 1, 2024
Change vs last quarter
unchanged
Notes from the source

Matrix footnote #22 (SOUTH CAROLINA): LNG is measured in Diesel Gallons equivalents of 6.06 pounds of liquefied natural gas and CNG is measured in Gasoline Gallons equivalents of 5.660 pounds of compressed natural gas.

Worked example: the South Carolina line of your IFTA return

Change the numbers to match your quarter. Prefilled with 10,000 total miles on 1,550 gallons, 1,200 of those miles in South Carolina, and 100 gallons bought there.

Example numbers are filled in. Tap "Calculate South Carolina IFTA" to see the South Carolina line of an IFTA return at the Q3 2024 rate.

South Carolina vs. its neighbors, Q3 2024

IFTA diesel rates for South Carolina and bordering jurisdictions, Q3 2024
JurisdictionDiesel + surchargevs. SC
North Carolina$0.4040+$0.1240
Georgia$0.3620+$0.0820
South Carolina$0.2800—

On an IFTA return, a higher rate doesn't mean you pay more overall. Fuel you buy in a high-rate state earns a bigger credit. What matters is where you burn the fuel versus where you buy it.

South Carolina rate, last 3 quarters

South Carolina IFTA diesel rate by quarter
QuarterDieselSurchargeChange
Q1 2024$0.2800——
Q2 2024$0.2800—no change
Q3 2024$0.2800—no change

Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2024 · Effective Jul 1, 2024 · Last verified Sep 28, 2026

IFTA, Inc. publishes the rates each member jurisdiction reports. South Carolina's tax agency is the final word on its rate.

Estimates for planning. Confirm with your tax pro or your base jurisdiction's IFTA office before filing.