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Last updated: May 2026 · Iowa IFTA rates current for Q1–Q4 2026
Iowa · 32.5¢/gal

Iowa IFTA Calculator 2026 — Diesel Tax Rate & Filing

Iowa diesel tax rate is 32.5¢ per gallon for 2026. Calculate your quarterly IFTA fuel tax liability for Iowa routes.

Calculate Your Iowa IFTA Tax

Iowa IFTA Rates & Trucking Overview 2026

Iowa at 32.5¢/gal is a key transit state for east-west freight. Des Moines is one of the Midwest's most important distribution hubs, and I-80 across Iowa is one of the highest truck-volume interstates in the country. Iowa's agriculture base — corn, soybeans, pork — generates massive outbound freight year-round.

Major Iowa Trucking Routes

I-80 (Omaha–Des Moines–Davenport–Chicago, primary east-west), I-35 (Kansas City–Des Moines–Minneapolis), I-380 (Cedar Rapids–Waterloo), I-29 (Missouri River corridor, south to KC)

The I-80/I-35 interchange at Des Moines is a critical decision point for Midwest routing. Iowa's winter weather makes reliable equipment essential — chains and winter tires are common from November through March.

Iowa IFTA — Frequently Asked Questions

What is Iowa's IFTA diesel tax rate in 2026?
Iowa's diesel rate is 32.5¢/gal for 2026.
Who administers IFTA for Iowa-based carriers?
Iowa IFTA is handled by the Iowa Department of Transportation. File quarterly at iowadot.gov. Iowa-based carriers should be aware that Iowa also has a per-mile fuel use fee for some vehicle configurations.
What agricultural freight moves through Iowa?
Corn and soybeans (Iowa is a top-5 producer of both), hogs and pork products, ethanol, and fertilizer are dominant commodities. Harvest season (September–November) creates significant demand surges for grain haulers and ag flatbeds.
Is I-80 through Iowa restricted for oversized loads?
Iowa has standard Midwest oversize/overweight permit requirements. I-80 is generally clear for standard configurations. The Missouri River bridges at Council Bluffs/Omaha have weight restrictions; check Iowa DOT permits for loads over 80,000 lbs.
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Iowa Quick Reference

Iowa diesel tax 2026→32.5¢/gal

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

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