Oklahoma IFTA Fuel Tax Rate, 4th Quarter 2025
Oklahoma's IFTA diesel rate for the 4th quarter of 2025 is $0.1900 per gallon, unchanged from Q3 2025.
Oklahoma rate for Q4 2025
Special diesel, Q4 2025
$0.1900
per US gallon, unchanged from Q3 2025
- Diesel tax rate
- $0.1900/gal
- Surcharge
- None listed
- Quarter
- Q4 2025, from Oct 1, 2025
- Change vs last quarter
- unchanged
Worked example: the Oklahoma 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 Oklahoma, and 100 gallons bought there.
Oklahoma vs. its neighbors, Q4 2025
| Jurisdiction | Diesel + surcharge | vs. OK |
|---|---|---|
| Colorado | $0.3250 | +$0.1350 |
| Missouri | $0.2950 | +$0.1050 |
| Arkansas | $0.2850 | +$0.0950 |
| Kansas | $0.2600 | +$0.0700 |
| New Mexico | $0.2100 | +$0.0200 |
| Texas | $0.2000 | +$0.0100 |
| Oklahoma | $0.1900 | — |
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.
Oklahoma rate, last 4 quarters
Source: IFTA, Inc. Fuel Tax Rate Matrix, 4th Quarter 2025 · Effective Oct 1, 2025 · Last verified Sep 28, 2026
IFTA, Inc. publishes the rates each member jurisdiction reports. Oklahoma'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.