Tennessee

The IFTA diesel fuel tax rate in Tennessee is 27.0¢ per gallon, which is 13.2¢ lower than your home state (North Carolina: 40.2¢/gal). Includes excise tax; moderate rate. This rate is reported on your quarterly IFTA return and net taxes owed or credited are calculated based on miles driven vs. fuel purchased in each jurisdiction.

Tennessee participates in IRP; registration through TN DOR. No separate state motor carrier permit; UCR registration required. Your IRP registration covers operating in Tennessee as long as it is listed on your cab card. If Tennessee is not on your cab card, you will need a temporary trip permit: $30 for temporary trip permit; available online.

Single-trip permit: $15; annual permit: $50; TDOT permits. Permits required for loads over 8.5 ft wide, 13.5 ft high, 65 ft single, 80,000 lbs. Always obtain permits before entering the state with oversize or overweight loads, as fines for operating without proper permits can be substantial.

Federal hazmat requirements; restrictions through Nashville and Memphis metro areas; restrictions through Smoky Mountains corridor. All drivers transporting hazardous materials must have a valid CDL with hazmat endorsement (HME), which requires a TSA background check. Check Tennessee's specific routing requirements before hauling hazmat loads through the state.

Weigh stations on I-40, I-65, I-24, I-75, I-81; active enforcement. Bypass programs available: PrePass, Drivewyze. Carriers with good safety records and proper credentials may qualify for bypass at equipped stations, saving time and fuel.

For the most current IFTA rates, permit fees, and operating requirements, visit the Tennessee DOT at https://www.tn.gov/tdot.html or the tax authority at https://www.tn.gov/revenue.html. Additional motor carrier information: https://www.tn.gov/revenue/taxes/motor-fuel-tax.html.