Wisconsin Statutes Taxation (Ch. 70 to 79) § 76.15. Reassessment

(1) If any tax levied under the provisions of s. 76.13 shall be adjudged illegal and nonenforceable, or shall be set aside by any court of the state of competent jurisdiction, it shall be the duty of the department, whether any part of the taxes assessed and levied have been paid or not, to forthwith reascertain and redetermine the value of the property of the companies or the value of the general property of the state or the average rate of taxation throughout the state as may be required; and when such reascertainment and redetermination has been made, to make a duplicate of the original assessment roll and to extend the taxes thereon according to such reassessment, and when such duplicate roll has been made and the taxes extended thereon in the manner provided in this section, it shall be of the same force and effect as the original assessment made in accordance with law. The proceedings for such reassessment and for the extension, payment and collection of taxes upon such duplicate assessment roll shall be conducted in the method originally provided for as near as may be. The department shall fix the time and place for the hearings or proceedings for the reassessment and give notice thereof by mail to the companies.

(2) The power to reassess the property of any company defined in s. 76.02 and the general property of the state, and to redetermine the average rate of taxation, may be exercised under sub. (1) as often as may be necessary until the amount of taxes legally due from any such company for any year under ss. 76.01 to 76.26 has been finally and definitely determined. Whenever any sum or part thereof, levied upon any property subject to taxation under ss. 76.01 to 76.26 so set aside has been paid and not refunded, the payment so made shall be applied upon the reassessment upon the property, and the reassessment of taxes to that extent shall be deemed to be satisfied. When the tax roll on the reassessment is completed and delivered to the secretary of administration, the department shall immediately notify by certified mail each of the several companies taxed to pay the amount of the taxes extended on the tax roll within 30 days.