Wis. Stat. § 76.67: Reciprocal taxation of foreign insurers.

(1) In this section, “taxes” means the taxes imposed on foreign insurers under ss. 76.60, 76.63, 76.65 (2) and 601.93 less offsets allowed against those taxes under s. 646.51 (7) (b) or the amounts imposed on domestic insurers by another state for similar purposes.

(2) If any domestic insurer is licensed to transact insurance business in another state, this state may not require similar insurers domiciled in that other state to pay taxes greater in the aggregate than the aggregate amount of taxes that a domestic insurer is required to pay to that other state for the same year less the credits under ss. 76.633, 76.634, 76.635, 76.636, 76.637, 76.638, 76.639, and 76.655, except that the amount imposed shall not be less than the total of the amounts due under ss. 76.65 (2) and 601.93 and, if the insurer is subject to s. 76.60, 0.375 percent of its gross premiums, as calculated under s. 76.62, less offsets allowed under s. 646.51 (7) or under ss. 76.633, 76.634, 76.635, 76.636, 76.637, 76.638, 76.639, and 76.655 against that total, and except that the amount imposed shall not be less than the amount due under s. 601.93.