North Carolina IFTA Tax Rates for 2026 Q3
Official North Carolina IFTA rates for Q3 2026, the NCDOR forms and eFile system behind them, the alternate tax option for intrastate carriers, and a diesel comparison against every state North Carolina touches.
North Carolina IFTA Rates for Q3 2026 (Jul - Sep 2026): What Carriers Need to Know
North Carolina prints $0.4100 per gallon on both special diesel and gasoline for Q3 2026 — up from the $0.4030 that held through Q4 2025. The North Carolina Department of Revenue (NCDOR) administers IFTA through its Motor Carrier Tax section and publishes its own quarterly IFTA fuel tax rate tables (Form GAS-1278) alongside the IFTA Inc. Tax Matrix. Both sources should agree on the North Carolina rate; if they differ, the NCDOR-published GAS-1278 is the controlling state document.
North Carolina’s motor fuel tax structure includes an alternate tax provision that applies in specific intrastate contexts. The alternate tax is calculated on a per-mile basis rather than a per-gallon basis and is available to carriers operating solely within North Carolina under the state Motor Carrier Act. For interstate IFTA carriers, the per-gallon rate — currently $0.4100 for Q3 2026 — is the applicable figure; the alternate per-mile calculation is a state-specific option for the subset of carriers that qualify and elect it for intrastate operations. The comparison table below focuses on the per-gallon IFTA rates, which govern quarterly IFTA returns for carriers crossing state lines.
Where North Carolina sits relative to its neighbors matters for route planning. It is cheaper per gallon than Virginia once Virginia’s surcharge stacks on — Virginia’s combined all-in rate of $0.4790 is the most expensive border on the map around North Carolina — but noticeably more expensive than South Carolina, Tennessee and Georgia. The comparison table below puts exact numbers on the border crossings from the Q3 2026 Tax Matrix.
NCDOR administers IFTA through two complementary channels: eFile, the online IFTA/Intrastate filing system at eservices.dor.nc.gov/ifta, and a paper form set (GAS-1276 for quarterly returns, GAS-1274 and GAS-1274A for licenses and renewals). The eFile system handles quarterly returns, credential orders and payments in one place. Carriers who have not yet created an eFile account must register before filing — the registration step is separate from the IFTA license application itself.
North Carolina Quarterly Fuel Tax Rates — Last 4 Quarters
1. Filing NC IFTA Returns: Essentials & Deadlines
2. North Carolina vs. Its Neighbors: Q3 2026 Diesel
Crossing a state line changes what each burned gallon costs your quarterly return. Here is the per-gallon diesel picture around North Carolina, straight from the Q3 2026 Tax Matrix.
Two readings matter from the table above. First, Virginia looks cheaper at the base rate ($0.3360) until its $0.1430 surcharge is added — all-in it is $0.4790, the priciest border on this map. A quarterly run that crosses into Virginia from North Carolina adds 69 cents per gallon to the IFTA liability for those Virginia miles. Second, a southbound run into South Carolina or Tennessee cuts the per-gallon IFTA charge by 13 to 14 cents against North Carolina, which on a 100-gallon fill-up is real money by the end of a quarter.
For a carrier running the I-85 corridor between Charlotte and Atlanta — a route that clips corners of South Carolina and Georgia — the rate mix across the multi-state miles is significantly lower than if the same mileage were spent in North Carolina or Virginia. The IFTA calculator on this site applies the exact per-state rate to your reported miles so you can see the full quarterly impact of each state’s rate on your specific route.
One caution: IFTA taxes accrue where fuel is burned, not where it is purchased. The table tells you each state’s tax per gallon of fuel consumed in that state, while pump prices bundle state excise taxes, supplier margins and local add-ons into a single number at the register. Use this table to understand your quarterly tax exposure per state, and your fuel purchase receipts to decide where to actually swipe the card.
NC IFTA Tax Rates — Frequently Asked Questions
The IFTA Inc. Tax Matrix prints $0.4100 per gallon of special diesel for North Carolina in Q3 2026, and the same $0.4100 on gasoline. The rate stepped up from $0.4030 starting Q1 2026.
No. The Tax Matrix flags no separate surcharge for North Carolina — neighboring Virginia is the surcharge state in this corner of the map, adding $0.1430 on top of its $0.3360 base rate.
North Carolina’s fuel tax law includes an alternate tax option calculated per mile rather than per gallon. It applies to intrastate-only carriers under state law. For interstate IFTA carriers, the standard per-gallon rate ($0.4100 for Q3 2026) governs.
NCDOR posts quarterly IFTA fuel tax rate tables as Form GAS-1278 on its Motor Carrier Tax pages. GAS-1278 is the state’s own rate publication and should agree with the IFTA Inc. Tax Matrix for the North Carolina row.
Through NCDOR’s IFTA/Intrastate eFile system (eservices.dor.nc.gov/ifta), which handles quarterly returns, credentials and payments. The return form is GAS-1276; licenses and decals start with GAS-1274, and renewals use GAS-1274A with an online option.
North Carolina: $0.4100 per gallon versus Virginia’s $0.4790 all-in (base $0.3360 plus $0.1430 surcharge). Your actual fuel purchase decision should still compare pump prices — IFTA accrues on fuel burned, not fuel bought.
NCDOR’s motor carrier line: 1-877-308-9092, Option 2, then Option 4 for general IFTA and Intrastate assistance with filings and credentials.
For Q3 2026: North Carolina $0.4100, South Carolina $0.2800, Tennessee $0.2700. South Carolina and Tennessee are both 13–14 cents cheaper per gallon on the IFTA tax line. Georgia is $0.3730, also below North Carolina.
Done looking up rates? Run the numbers.
The rate table tells you what North Carolina charges per gallon. The calculator turns that into your actual quarterly return, and the mileage tracker splits your miles state by state.
Browse the full 48-state rates table