Wis. Stat. § 70.095

For the purpose of time-share property, as defined in s. 707.02 (32), a time-share instrument, as defined in s. 707.02 (28), shall provide a method for allocating real property taxes among the time-share owners, as defined in s. 707.02 (31), and a method for giving notice of an assessment and the amount of property tax to the owners. Only one entry shall be made on the assessment roll for each building unit within the time-share property, which entry shall consist of the cumulative real property value of all time-share interests in the unit.