Wyoming IFTA Calculator 2026 — Diesel Tax Rate & Filing

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Wyoming IFTA Rates & Trucking Overview 2026

Wyoming at 24.0¢/gal is one of the lowest diesel rates in the Rocky Mountain region. Cheyenne is Wyoming's primary freight hub at the I-25/I-80 interchange and handles significant cross-country freight as one of the highest-elevation points on the I-80 corridor. Wyoming has no state income tax, making it an attractive IFTA base state for Mountain West carriers.

Major Wyoming Trucking Routes

I-80 (Salt Lake City UT–Cheyenne–Omaha NE, primary east-west), I-25 (Denver CO–Cheyenne–Casper–Montana), I-90 (South Dakota–Gillette–Buffalo–Montana), US-30 (Evanston–Rock Springs–Rawlins, secondary I-80 parallel)

Colorado at 32.5¢ to the south is slightly cheaper, and Utah at 31.9¢ to the west makes Wyoming the better fueling choice for I-80 runs. Montana to the north (28.5¢) and South Dakota (28.0¢) to the east are both more expensive. Wyoming's energy sector — coal from the Powder River Basin (largest coal producing region in the US), oil and natural gas from the Pinedale/Jonah fields — generates enormous heavy freight volume.