Wis. Stat. § 69.62: Returns to department of revenue.

(1) Annually, on or before November 30, each county clerk shall make and transmit to the department of revenue a statement in detail of all county taxes levied on taxable property in the county during the preceding year, and the purposes for which the taxes were levied and expended. Any county clerk failing to make the statement required under this section within the required time, shall be liable to the county for all damages caused by the delinquency.

(2) The department of revenue shall prepare and furnish to the clerk of each county forms and instructions for the statement required under this section.