Wisconsin (WI) IFTA Fuel Tax

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Do I need to register for IFTA in Wisconsin?

The state of Wisconsin considers an IFTA 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 Wisconsin 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 Wisconsin?

The Wisconsin IFTA license application can be obtained online at www.dot.wisconsin.gov/business/carriers/ifta.htm by e-mail at irpifta@dot.state.wi.us or at the Hill Farms State Transportation Building in Madison, Room 151. You can call (608) 266-9900 for assistance.


What fees does Wisconsin charge me for IFTA?

Wisconsin charges a $15 application fee, $3 license fee and $2 per set of decals.


What IFTA credentials will Wisconsin give me?

Wisconsin will provide you with one IFTA license and a set of decals. A photocopy of the original license must be maintained in the cab of each one of your qualified motor vehicles. The original license should be kept at your business address in a safe place. Your Wisconsin 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 Wisconsin 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 in Wisconsin?

Wisconsin 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 Wisconsin IFTA return?

You can easily generate and print your IFTA return at ExpressIFTA. The IFTA quarterly/annual tax report will also be sent to all IFTA licensees at least 30 days before the due date. Quarterly tax reports may be filed online at www.dot.wisconsin.gov/business/carriers/wiscrs.htm or obtained online at www.dot.wisconsin.gov/business/carriers/ifta.htm if you feel comfortable doing IFTA calculations on your own. You can also call (608) 266-9900 for assistance.


Where can I get more information regarding IFTA in Wisconsin?

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