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Last updated: May 2026 · Oklahoma IFTA rates current for Q1–Q4 2026
Oklahoma · 19.0¢/gal

Oklahoma IFTA Calculator 2026 — Diesel Tax Rate & Filing

Oklahoma diesel tax rate is 19.0¢ per gallon for 2026. Calculate your IFTA fuel tax for Oklahoma routes.

Calculate Your Oklahoma IFTA Tax

Oklahoma IFTA Rates & Trucking Overview 2026

Oklahoma City is at the crossroads of I-40 and I-35, two of the nation's highest-volume freight interstates, making OKC a natural fueling hub. The Will Rogers Turnpike connecting Tulsa to Joplin, MO is toll-based but essential for east-west commerce.

Major Oklahoma Trucking Routes

I-40 (Amarillo TX–Oklahoma City–Fort Smith AR), I-35 (Dallas TX–Oklahoma City–Wichita KS), I-44 (Tulsa–Oklahoma City–Lawton–Texas), I-244 (Tulsa inner loop), Will Rogers Turnpike (I-44, Tulsa–Joplin MO)

Oklahoma's energy sector generates enormous freight: oil field services, pipeline equipment, and refined products move constantly on I-35 and US-81 corridors.

Oklahoma IFTA — Frequently Asked Questions

Who administers IFTA for Oklahoma-based carriers?
Oklahoma IFTA is administered by the Oklahoma Tax Commission. File quarterly at oktax.state.ok.us.
What makes Oklahoma City a strategic freight hub?
OKC sits at the exact center of the US at the I-35/I-40 intersection. I-35 is the primary NAFTA corridor north-south; I-40 is the primary east-west Route 66 successor. Fuel, food, and rest facilities cluster around OKC exits. Distribution center growth has been rapid in the past decade.
Does Oklahoma have turnpike tolls affecting trucking costs?
Yes. Oklahoma has an extensive turnpike system including the Will Rogers (I-44 Tulsa–Joplin), Turner (I-44 OKC–Tulsa), and several others. PlatePay and PIKEPASS are the primary payment methods. Toll costs are separate from IFTA and add to operating costs on Oklahoma toll corridors.
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Oklahoma Quick Reference

Oklahoma diesel tax 2026→19.0¢/gal

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

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