Wisconsin diesel tax rate is 32.9¢ per gallon for 2026. Calculate your IFTA fuel tax for Wisconsin routes.
Calculate Your Wisconsin IFTA Tax
Gallons consumed in Wisconsin→
Net taxable gallons→
Wisconsin tax rate (2026)→32.9¢/gal
Estimated Wisconsin IFTA→
Positive = amount owed to Wisconsin; negative = credit on your return.
Wisconsin IFTA Rates & Trucking Overview 2026
Wisconsin's diesel rate is 32.9¢/gal (2Q 2026). Milwaukee is Wisconsin's largest freight market, driven by manufacturing (Harley-Davidson, Briggs & Stratton, Johnson Controls, Kohler), food and beverage (beer, dairy, meat processing), and its position as a Great Lakes port city. Madison generates significant healthcare, education, and state government freight.
Wisconsin's dairy industry — it's the #2 cheese producing state — generates significant refrigerated freight year-round.
Wisconsin IFTA — Frequently Asked Questions
What is Wisconsin's IFTA diesel tax rate in 2026?
Wisconsin's diesel rate is 32.9¢/gal.
Who administers IFTA for Wisconsin-based carriers?
Wisconsin IFTA is administered by the DMV. File quarterly at dot.wi.gov. Wisconsin uses a standard quarterly filing schedule with typical IFTA due dates.
What manufacturing freight drives Wisconsin?
Harley-Davidson motorcycles, industrial engines (Kohler, Briggs & Stratton), power tools (Milwaukee Tool, SC Johnson), and paper products from the Fox Valley paper mills are major Wisconsin freight commodities. The Fox Valley (Appleton–Neenah–Oshkosh) is the center of the global tissue paper industry.
Are there weight restrictions on Wisconsin secondary roads?
Wisconsin has spring weight restrictions (typically March–mid-May) on many state highways and county roads. These are stricter than many states — county road restrictions can limit loads to as little as 5 tons per axle. Check WisDOT's Spring Weight Restrictions map at dot.wi.gov before dispatching off-interstate loads.