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Haul Math

North Carolina IFTA Fuel Tax Rate, 3rd Quarter 2025

North Carolina's IFTA diesel rate for the 3rd quarter of 2025 is $0.4030 per gallon, unchanged from Q2 2025.

North Carolina rate for Q3 2025

Special diesel, Q3 2025

$0.4030

per US gallon, unchanged from Q2 2025

Diesel tax rate
$0.4030/gal
Surcharge
None listed
Quarter
Q3 2025, from Jul 1, 2025
Change vs last quarter
unchanged
Notes from the source

Matrix footnote #24 (NORTH CAROLINA): Liquefied Propane Gas (LPG): When LPG is dispensed as a motor fuel, the method of measurement is one (1) gasoline gallon equivalent equals 5.75 lbs. of LPG. To convert gallons of LPG to gasoline gallon equivalent (GGE), divide total LPG gallons by 1.353. Compressed Natural Gas (CNG): When CNG is dispensed as a motor fuel, the method of measurement is one (1) gasoline gallon equivalent equals 5.66 lbs. of CNG. To convert cubic feet of CNG to gasoline gallon equivalent (GGE), divide total cubic feet by 123.57. Liquefied Natural Gas (LNG): When LNG is dispensed as a motor fuel, the method of measurement is one (1) diesel gallon equivalent equals 6.06 lbs. of LNG. To convert gallons of LNG to diesel gallon equivalent (DGE), divide total LNG gallons by 1.71.

Worked example: the North 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 North Carolina, and 100 gallons bought there.

Example numbers are filled in. Tap "Calculate North Carolina IFTA" to see the North Carolina line of an IFTA return at the Q3 2025 rate.

North Carolina vs. its neighbors, Q3 2025

IFTA diesel rates for North Carolina and bordering jurisdictions, Q3 2025
JurisdictionDiesel + surchargevs. NC
Virginia$0.4700+$0.0670
North Carolina$0.4030—
Georgia$0.3710−$0.0320
South Carolina$0.2800−$0.1230
Tennessee$0.2700−$0.1330

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.

North Carolina rate, last 4 quarters

North Carolina IFTA diesel rate by quarter
QuarterDieselSurchargeChange
Q4 2024$0.4040——
Q1 2025$0.4030—−$0.0010
Q2 2025$0.4030—no change
Q3 2025$0.4030—no change

Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2025 · Effective Jul 1, 2025 · Last verified Sep 28, 2026

IFTA, Inc. publishes the rates each member jurisdiction reports. North 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.