Kentucky (KY) IFTA Fuel Tax

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Should I register for IFTA in Kentucky?

Yes, If your vehicle is considered a qualified motor vehicle. The state of Kentucky considers a qualified motor vehicle as one that is designed, used, or maintained for the transportation of persons or property that have:

  • Two axles and a gross vehicle weight or registered gross vehicle weight exceeding 26,000 pounds or 11,797 kilograms; or
  • Having three or more axles regardless of weight; or used in combination, when the weight of such combination exceeds 26,000 pounds, or 11,797 kilograms gross vehicle or registered gross vehicle weight.

The state of Kentucky does not include recreational vehicles in the IFTA tax unless they are used in conjunction with any business endeavor. Recreational vehicles include motor homes, pickup trucks with attached campers and buses when used exclusively for personal pleasure by an individual.


How do I apply for an IFTA license in Kentucky?

You will need to complete International Fuel Tax Agreement (IFTA) application designated by Kentucky only for Kentucky carriers and submit it to the Division of Motor Carriers.


What fees must I pay under IFTA?

Kentucky has no fees associated with IFTA.


What credentials will I receive from Kentucky?

Kentucky will give you one IFTA license and a set of decals will be assigned to each IFTA licensee. Kentucky required that a photocopy of the license must be maintained in the cab of each motor vehicle. The original license issued should be retained at your business address. The Kentucky IFTA license is valid for the calendar year January 1 through December 31.


Do I file a quarterly fuel tax report if I didn't run during the quarter?

Yes, the state of Kentucky still requires you to submit a "zero" report even if no fuel or IFTA mileage was traveled in that quarter.


What is the penalty and interest rate for filing a late quarterly fuel tax report?

Kentucky charges a late penalty of $50 or 10% of the net tax due, whichever is greater. Interest is computed on overdue taxes in each jurisdiction at a rate of .4167% per month. Even if you are due a net refund, interest still applies to each jurisdiction for any underpayment of fuels use tax to that jurisdiction. This interest is calculated from the day after the IFTA quarterly due date for each month, or fraction of a month, until paid.


How do I obtain a Kentucky IFTA return?

IFTA quarterly use tax returns can only filed online at transportation.ky.gov/Motor-Carriers


Where can I get more information on Kentucky's IFTA rules and regulations?

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