Cost Per Mile to Operate a Truck in Missouri (2026)
What it actually costs owner-operators to run a semi-truck in Missouri — diesel, insurance, IFTA, and freight market notes for MO.
Diesel prices in Missouri
The average diesel price in Missouri is roughly $3.55/gal. For a truck running 8,000 miles/month at 6.5 MPG, that's about $4,369/month in fuel alone — or roughly $0.55/mile. Fuel is typically 30–40% of total cost per mile, so Missouri's diesel price has a major impact on whether a load is profitable.
Trucking insurance in Missouri
Missouri insurance averages $9,500–$13,000/yr. Annual premiums vary widely based on CDL history, equipment age, and operating radius.
MO IFTA and fuel taxes
Missouri IFTA fuel tax: 22¢/gal diesel. File quarterly and keep accurate trip mileage records by jurisdiction to stay compliant.
Freight market in Missouri
St. Louis and Kansas City are major Midwest crossroads for I-70 and I-44 freight.
How to lower your cost per mile in Missouri
- Track diesel by region — refuel where the all-in price (pump + state tax) is lowest.
- Negotiate fuel surcharge into every contract using a clear formula tied to the DOE index.
- Reduce deadhead — a 20% deadhead ratio adds 25% to your effective cost per loaded mile.
- Run our Cost Per Mile Calculator monthly with real receipts, not estimates.