Louisiana IFTA Fuel Tax Rate
Louisiana's IFTA diesel rate for the 3rd quarter of 2026 is $0.2000 per gallon, unchanged from Q2 2026.
Louisiana rate for Q3 2026
Special diesel, Q3 2026
$0.2000
per US gallon, unchanged from Q2 2026
- Diesel tax rate
- $0.2000/gal
- Surcharge
- None listed
- Quarter
- Q3 2026, from Jul 1, 2026
- Change vs last quarter
- unchanged
Notes from the source
Matrix footnote #21 (LOUISIANA): Beginning January 1, 2016 the tax on CNG, LNG, and LPG will be added to the price of the fuel dispensed at the pump or from a storage facility.
Worked example: the Louisiana 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 Louisiana, and 100 gallons bought there.
Louisiana vs. its neighbors, Q3 2026
| Jurisdiction | Diesel + surcharge | vs. LA |
|---|---|---|
| Arkansas | $0.2850 | +$0.0850 |
| Mississippi | $0.2400 | +$0.0400 |
| Louisiana | $0.2000 | — |
| Texas | $0.2000 | no change |
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.
Louisiana rate, last 4 quarters
Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2026 · Effective Jul 1, 2026 · Last verified Sep 28, 2026
IFTA, Inc. publishes the rates each member jurisdiction reports. Louisiana'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.