Trucking in Colorado (2026)

Colorado IFTA fuel tax: 23.5¢/gal diesel. File IFTA returns quarterly (due the last day of the month following the quarter end). Keep distance records by jurisdiction — odometer at state line, or GPS-derived equivalent — and fuel receipts showing gallons, location, and date. The base jurisdiction handles your IFTA license and decals.

Colorado insurance averages $10,500–$14,000/yr. Federal minimum liability for interstate operation is $750,000 (general freight) or $1M+ (hazmat); most shippers and brokers require $1M auto liability and $100k cargo regardless of what your state minimum is. Premiums in Colorado are influenced by CDL experience, MVR, equipment age, radius of operation, and the safety scores of any motor carrier you're leased to.

Permanent and mobile weigh stations operate along major Colorado corridors. PrePass and Drivewyze bypass services are accepted at most permanent CO scales — a good carrier-safety score (CSA BASIC under threshold) usually means a green light. Plan stops for HOS compliance and pre-trip before approaching a scale; the most common citations are logbook/ELD violations, brake adjustment, and tire condition.

Denver is the Rocky Mountain freight hub — building materials, beverages, agriculture. Track inbound/outbound balance on your load boards — markets with heavy inbound consumer freight usually pay less outbound, while production-heavy markets (CO included where applicable) can pay premium outbound rates if you time it right.

Plan around regional weather: summer thunderstorms, winter snow/ice corridors, and known mountain or desert grades hurt MPG and add transit risk. Check 511 services and state DOT alerts before long runs.

• Cost per mile in Colorado — diesel + fixed costs for CO owner-operators
• Fuel surcharge calculator — convert diesel price moves into an FSC
• Load profit calculator — should you book this load?