Trucking Costs in Idaho

Idaho's state diesel tax is 32.5 cents per gallon, plus the 24.4-cent federal tax for a total of 56.9 cents per gallon — moderate to above average. Diesel prices in Idaho average $3.70-$4.05 per gallon, roughly matching the national average. Prices are higher in remote northern Idaho and lower along the I-84 corridor. A truck averaging 6.5 MPG running 10,000 miles monthly faces fuel costs of $5,700-$6,200. Fuel stops are concentrated along I-84 (Boise to Twin Falls to Pocatello) and I-86/I-15. Northern Idaho (US-95, US-93) has fewer fueling options and higher prices. IFTA filing is required quarterly. The Boise metro area offers the most competitive fuel pricing in the state.

Annual insurance for an Idaho owner-operator typically totals $9,000-$16,000 — below the national average. Commercial vehicle registration ranges from $200-$450 based on gross weight. The HVUT adds $550 annually. Idaho's state income tax ranges from 1% to 5.8% (reduced in recent years under tax reform). While not zero, the rate is moderate. Idaho has no vehicle personal property tax. The state's cost of living is moderate, though Boise has become more expensive due to population growth. UCR is $69-$73. IRP and IFTA are required for interstate carriers. Idaho's overall tax burden for trucking is favorable compared to West Coast states while providing access to Pacific Northwest and Mountain West freight markets.

Idaho maintenance costs are moderate. Shop labor averages $80-$120 per hour. Budget $0.13-$0.18 per mile for maintenance. Winter operations (November-March) increase costs through chain usage, tire wear, and cold-weather maintenance. Northern Idaho gets heavy snowfall requiring winter-rated equipment. Southern Idaho's agricultural roads can be rough during harvest — washboard surfaces and field access roads accelerate suspension wear. Tire costs run $3,000-$5,000 annually. Wildlife collisions (deer, elk) are a significant concern along I-84, US-93, and northern Idaho highways — comprehensive coverage and vigilant driving are essential. The limited number of truck repair facilities in rural Idaho means breakdown recovery can be expensive and time-consuming.

An Idaho-based owner-operator with a paid-off truck can expect costs of $1.40-$1.80 per mile. With truck payments, costs increase to $1.65-$2.05 per mile. Breakdown: fuel $0.57-$0.63/mi, insurance $0.07-$0.12/mi, maintenance $0.13-$0.18/mi, tires $0.03-$0.05/mi, truck payment $0.15-$0.25/mi, permits $0.02-$0.03/mi, overhead $0.05-$0.08/mi. Idaho dry van rates average $2.25/mi and flatbed $2.80/mi. Potato and agricultural freight pays premium rates during harvest — $3.00-$4.00/mi for time-sensitive produce loads. The I-84 corridor connects Pacific Northwest ports to Mountain West markets with consistent freight. Owner-operators grossing $175,000-$220,000 can net $50,000-$75,000 annually. Idaho's low cost of living means this income stretches further than in coastal states.