Kentucky Weight-Mile Tax and Compliance Guide

Feb. 18, 2026, 9:05 p.m.
For motor carriers operating in Kentucky, understanding the Weight-Mile Tax is critical for compliance and avoiding fines. This guide explains who must pay, how it is calculated, filing requirements, and key compliance tips.
Kentucky Weight-Mile Tax and Compliance Guide

What Is the Kentucky Weight-Mile Tax?

The Kentucky Weight-Mile Tax is a state-imposed tax on commercial motor vehicles based on their weight and miles traveled on public highways in Kentucky. It applies primarily to vehicles:

  • With gross weight over 60,000 pounds

  • Operating on Kentucky state-maintained highways

  • Engaged in intrastate or interstate commerce

This tax is separate from federal fuel taxes and IRP (International Registration Plan) obligations.

 Who Must Pay the Weight-Mile Tax?

Carriers required to pay the Kentucky Weight-Mile Tax include:

  • Trucking companies operating commercial vehicles above the weight threshold

  • Owner-operators with qualifying trucks

  • Out-of-state carriers traveling on Kentucky roads for commercial purposes

Exemptions:

  • Government vehicles

  • Certain agricultural equipment

  • Vehicles operating exclusively on private property

 How the Tax Is Calculated

The tax is based on two main factors:

  1. Vehicle Weight: Heavier vehicles pay more per mile.

  2. Miles Traveled in Kentucky: You must report the number of miles your commercial vehicle travels within state boundaries.

The Kentucky Transportation Cabinet (KYTC) publishes the current weight-mile tax rates annually. Rates increase with higher weight categories.

 Filing & Payment

Carriers must file monthly weight-mile tax reports:

  1. Create an account at  www.kentuckytruckingonline.com

  2. Enter vehicle info and weight class

  3. Report mileage for the month

  4. Submit payment online via credit or debit card

After registration you will get your personal cabinet link to your email address!

 Deadlines

  • Monthly returns are due by the 15th of the following month

  • Late filings can incur penalties and interest

  • Maintain accurate mileage records to support your report

 Compliance Tips

  • Keep detailed mileage logs for all vehicles

  • Include only miles on public highways

  • Confirm vehicle weight category for each truck

  • Check for exemptions before filing

  • Review KYTC annual updates for rate changes

 Resources & Contacts

Kentucky Trucking Online

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