Utah IFTA Fuel Tax Rate, 3rd Quarter 2025
Utah's IFTA diesel rate for the 3rd quarter of 2025 is $0.3850 per gallon, unchanged from Q2 2025.
Utah rate for Q3 2025
Special diesel, Q3 2025
$0.3850
per US gallon, unchanged from Q2 2025
- Diesel tax rate
- $0.3850/gal
- Surcharge
- None listed
- Quarter
- Q3 2025, from Jul 1, 2025
- Change vs last quarter
- unchanged
Notes from the source
Matrix footnote #20 (UTAH): For Utah tax purposes, LNG is measured in Diesel Gallon Equivalents, meaning 6.06 pounds of liquefied natural gas. CNG is measured in Gasoline Gallon Equivalents, meaning 5.660 pounds of compressed natural gas. For Utah tax purposes, GGE is 2.198 pounds of hydrogen.
Worked example: the Utah 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 Utah, and 100 gallons bought there.
Utah vs. its neighbors, Q3 2025
| Jurisdiction | Diesel + surcharge | vs. UT |
|---|---|---|
| Utah | $0.3850 | — |
| Colorado | $0.3250 | −$0.0600 |
| Idaho | $0.3200 | −$0.0650 |
| Nevada | $0.2700 | −$0.1150 |
| Arizona | $0.2600 | −$0.1250 |
| Wyoming | $0.2400 | −$0.1450 |
| New Mexico | $0.2100 | −$0.1750 |
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.
Utah rate, last 4 quarters
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. Utah'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.