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Last updated: May 2026 · Utah IFTA rates current for Q1–Q4 2026
Utah · 31.9¢/gal

Utah IFTA Calculator 2026 — Diesel Tax Rate & Filing

Utah diesel tax rate is 31.9¢ per gallon for 2026. Calculate your IFTA fuel tax for Utah routes.

Calculate Your Utah IFTA Tax

Utah IFTA Rates & Trucking Overview 2026

Utah's diesel rate is 31.9¢/gal (2Q 2026; variable, indexed to wholesale price). Salt Lake City is the Mountain West's largest freight market and logistics hub, with same-day reach to Las Vegas, Boise, and Denver. Utah's central position in the Intermountain West makes it a key distribution state for the region. The I-15 corridor is among the highest-truck-volume routes in the Mountain West.

Major Utah Trucking Routes

I-15 (Las Vegas NV–Salt Lake City–Idaho Falls ID, primary north-south), I-80 (Reno NV–Salt Lake City–Cheyenne WY, primary east-west), I-70 (Grand Junction CO–Green River, scenic east connector), I-84 (Portland OR–Boise ID–Utah), US-6 (Price–Spanish Fork, coal country)

The Wasatch Front (Salt Lake–Ogden–Provo) concentrates the state's freight activity.

Utah IFTA — Frequently Asked Questions

What is Utah's IFTA diesel tax rate in 2026?
Utah's diesel rate is approximately 31.9¢/gal — indexed to wholesale fuel prices.
Who administers IFTA for Utah-based carriers?
Utah IFTA is administered by the Utah State Tax Commission. File quarterly at tax.utah.gov/business/other-taxes/ifta-sfu. Utah also has a weight fee for vehicles over 12,001 lbs registered in the state.
What freight industries are in Utah?
Retail distribution (Salt Lake is the Mountain West's DC hub), mining (copper from Kennecott/Rio Tinto — one of the world's largest open-pit copper mines), technology (Silicon Slopes tech corridor generating high-value freight), coal from the Wasatch Plateau via US-6, and aerospace components from Hill AFB suppliers.
What are the challenges of I-80 through the Salt Flats?
I-80 through the Bonneville Salt Flats and across Nevada is one of the most desolate stretches of US highway — long distances between fuel and services. Crosswinds can be severe. In summer, heat shimmer reduces visibility and tire blowout risk increases.
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Utah Quick Reference

Utah diesel tax 2026→31.9¢/gal

Need full IFTA across all 48 states? Use the IFTA Fuel Tax Calculator.

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