Alabama IFTA Calculator

Alabama sits at the crossroads of three major freight corridors that make it one of the most important throughput states in the Southeast. I-65 runs 366 miles north-south through the state, connecting Nashville to the Port of Mobile — the only deepwater port on the Gulf Coast west of Florida. I-20 slices across the northern half connecting Birmingham to Atlanta and Dallas. I-59 links Birmingham to Chattanooga and on to the Northeast. The automobile manufacturing sector centered around the Mercedes plant in Vance, Honda in Lincoln, and Hyundai in Montgomery generates enormous finished-vehicle and parts freight, giving Alabama dedicated auto hauler lanes that flatbeds and car carriers depend on year-round.

Alabama's IFTA diesel rate sits at $0.290 per gallon, which is moderate for the Southeast. Compare that against neighboring Georgia at $0.324 and Tennessee at $0.210 — if you're running a southbound load with flexible fuel stops, topping off in Tennessee before crossing the state line saves meaningful money over a month of runs. Mississippi at $0.183 is the cheapest option if your route takes you through the southwest corner of the state.

Standard weight limits in Alabama are 80,000 lbs gross on federal interstates. The state allows 88,000 lbs on state highways for certain commodity exemptions, but carriers must verify with the Alabama Department of Transportation before assuming that applies to their freight type. Oversize loads need permits from the Alabama Department of Revenue, and wide loads typically require escort vehicles on two-lane state routes.

Weigh stations on I-65 include fixed stations near Brewton in the south and Athens in the north — both are consistently staffed and use PrePass. The Bankhead Tunnel and I-65 through downtown Birmingham have height restrictions that catch uninformed drivers, so plan alternate routing through the 22nd Street viaduct if you're over 14 feet. For IFTA compliance, keep a separate fuel log for any Alabama Turnpike tolled segments, as these interact with mileage records on quarterly filings.