TN Diesel Rate: $0.210/gallon
Calculate your IFTA fuel tax for miles driven in Tennessee. Current rate $0.210/gallon, effective 2026-04-01–2026-06-30. Add other states you traveled through for a complete quarterly return.
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Routes, regulations, and fuel strategy for Tennessee — current rate $0.210/gallon
Tennessee is one of the most strategically important trucking states in the Southeast and one of the best-value fuel states in the entire country. Nashville serves as the distribution hub for the mid-South, with I-24, I-40, I-65, and I-24 converging to create a freight complex that serves the automotive manufacturing sector (Volkswagen in Chattanooga, Nissan in Smyrna, GM in Spring Hill). Memphis is a global logistics hub — FedEx World Headquarters and Hub, one of the largest intermodal rail yards in the South, and a significant river port combine to make Memphis the critical freight gateway between the Southeast, Midwest, and beyond. I-40 runs completely across the state from the North Carolina border through Nashville to Memphis and west into Arkansas — it is the primary Los Angeles-to-Charlotte freight corridor.
Tennessee's IFTA rate of $0.210 per gallon is one of the lowest in the country. Every surrounding state is more expensive: Alabama at $0.290, Georgia at $0.324, North Carolina at $0.365, Virginia at $0.272, Kentucky at $0.300 effective, Missouri at $0.197 (only slightly cheaper), and Mississippi at $0.183 (also slightly cheaper). The practical upshot is simple: if your route allows a Tennessee fuel stop, take it. The savings versus Georgia or North Carolina add up quickly on regular corridor runs.
Standard weight limits are 80,000 lbs on interstates. The Appalachian mountain portion of I-40 through the Pigeon River Gorge near the North Carolina border has a mandatory brake check station westbound and runaway truck ramps on the descent. I-24 through the Monteagle Mountain section has similar features with a 6% grade.
Weigh stations on I-40 near Memphis (both directions), near Cookeville, and at the major border crossings are active. For IFTA compliance, Tennessee's Department of Revenue processes IFTA filings cleanly — the low rate combined with high-volume freight corridors means accurate Tennessee mileage is important for showing the full credit when filing against higher-rate states.
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