Wisconsin Statutes Taxation (Ch. 70 to 79) § 70.339. Reporting requirements

(1) By March 15 each person that owns property that is exempt under s. 70.11, except s. 70.11(1) and (2), and that was used in the most recently ended taxable year in a trade or business for which the owner of the property was subject to taxation under sections 511 to 515 of the internal revenue code, as defined in s. 71.22(4m), shall file with the clerk of the taxation district in which the property is located a statement containing the following information:

(2) The format and distribution of statements under this section shall be governed by s. 70.09(3).

(3) If the statement required under this section is not received by the due date, the taxation district clerk shall send the owner of the property a notice, by certified mail, stating that failure to file a statement is subject to the penalties under sub. (4).

(4) A person who fails to file a statement within 30 days after notification under sub. (3) shall forfeit $10 for each succeeding day on which the form is not received by the taxation district clerk, but not more than $500.