Wisconsin Statutes Taxation (Ch. 70 to 79) § 77.63. Collection compensation

(1) A certified service provider.

(2) A seller that uses a certified automated system, as defined in s. 77.524(1)(am).

(3) A seller that sells tangible personal property, or items, property, or goods under s. 77.52 (1) (b), (c), or (d), or taxable services in at least 5 states that are signatories to the agreement, as defined in s. 77.65 (2) (a); that has total annual sales revenue of at least $500,000,000; that has a proprietary system that calculates the amount of tax owed to each taxing jurisdiction in which the seller sells tangible personal property, or items, property, or goods under s. 77.52 (1) (b), (c), or (d), or taxable services; and that has entered into a performance agreement with the states that are signatories to the agreement, as defined in s. 77.65 (2) (a). For purposes of this subsection, "seller" includes an affiliated group of sellers using the same proprietary system to calculate the amount of tax owed in each taxing jurisdiction in which the sellers sell tangible personal property, or items, property, or goods under s. 77.52 (1) (b), (c), or (d), or taxable services.