WI AB200

Extends the 1.35% administrative allowance that motor vehicle fuel suppliers can retain when collecting fuel tax on gasoline sales to also apply to diesel fuel sales in Wisconsin.

Creates a new 0.5% refund for retail fuel dealers to compensate for gasoline and diesel fuel lost to shrinkage and evaporation while stored on-site, restoring a provision that existed prior to 2019.

Requires retailers to file refund claims with the Department of Revenue within 12 months of purchase, accompanied by supplier invoices or a list of purchases documenting the fuel tax paid.

Mandates that suppliers provide invoices showing date of sale, supplier and retailer information, gallons purchased, price per gallon, and fuel tax amount as a separate line item.

Takes effect on the first day of the third month after publication.