70.50 Delivery of roll. Except in counties that have a county assessment system under s. 70.99 and in cities of the 1st class and in 2nd class cities that have a board of assessors under s. 70.075 the assessor shall, on or before the first Monday in May, deliver the completed assessment roll and all the sworn statements and valuations of personal property to the clerk of the town, city, or village, who shall file and preserve them in the clerk’s office. On or before the first Monday in April, a county assessor under s. 70.99 shall deliver the completed assessment roll and all sworn statements and valuations of personal property to the clerks of the towns, cities, and villages in the county, who shall file and preserve them in the clerk’s office.

70.52 Clerks to examine and correct rolls. Each city, village, and town clerk upon receipt of the assessment roll shall carefully examine the roll. The clerk shall correct all double assessments, imperfect descriptions, and other errors apparent on the roll, and correct the value of parcels of real property not liable to taxation. The clerk shall add to the roll any parcel of real property not listed on the assessment roll or item of personal property omitted from the roll and immediately notify the assessors of the additions and omissions. The assessors shall immediately view and value the omitted property and certify the valuation to the clerk. The clerk shall enter the valuation and property classification on the roll, and the valuation shall be final. To enable the clerk to properly correct defective descriptions, the clerk may request aid, when necessary, from the county surveyor, whose fees for the services rendered shall be paid by the city, village, or town.

70.65 (2) (a) 2. Identify For assessments made before January 1, 2024, identify the name and address of the owners of all taxable personal property within the taxation district and the assessed value of each owner’s taxable personal property.

70.65 (2) (b) (intro.) With respect to each description of real property and each owner of taxable personal property and the personal property assessments made before January 1, 2024:

70.68 (1) Collection in certain cities. In For taxes levied before January 1, 2024, in cities authorized to act under s. 74.87, the chief of police shall collect all state, county, city, school, and other taxes due on personal property as shall then remain unpaid, and the chief of police shall possess all the powers given by law to town treasurers for the collection of such taxes, and be subject to the liabilities and entitled to the same fees as town treasurers in such cases, but such fees shall be turned over to the city treasurer and become a part of the general fund.

70.73 (1) (b) If a town, village, or city clerk or treasurer discovers that personal property has been assessed to the wrong person for assessments made before January 1, 2024, or 2 or more parcels of land belonging to different persons have been erroneously assessed together on the tax roll, the clerk or treasurer shall notify the assessor and all parties interested, if the parties are residents of the county, by notice in writing to appear at the clerk’s office at some time, not less than 5 days thereafter, to correct the assessment roll.

70.73 (1) (c) At the time and place designated in the notice given under par. (b), the assessment roll shall be corrected by entering the correct names of the persons liable to assessment, both as to real and personal property, describing each parcel of land and giving the proper valuation to each parcel separately owned. The total valuation given to the separate tracts of real estate shall be equal to the valuation given to the same property when the several parcels were assessed together.

70.73 (1) (d) The valuation of parcels of land or correction of names of persons whose personal property is assessed under this subsection may be made at any time before the tax roll is returned to the county treasurer for the year in which the tax is levied. The valuation or correction of names, when made under this subsection, shall be held just and correct and be final and conclusive.

70.84 Inequalities may be corrected in subsequent year. If any such reassessment cannot be completed in time to take the place of the original assessment made in such district for said year, the clerk of the district shall levy and apportion the taxes for that year upon the basis of the original assessment roll, and when the reassessment is completed the inequalities in the taxes levied under the original assessment shall be remedied and compensated in the levy and apportionment of taxes in such district next following the completion of said reassessment in the following manner: Each tract of real estate, and, as to personal property assessments made before January 1, 2024, each taxpayer, whose tax shall be determined by such reassessment to have been relatively too high, shall be credited a sum equal to the amount of taxes charged on the original assessment in excess of the amount which would have been charged had such reassessment been made in time; and each tract of real estate, and, as to personal property assessments made before January 1, 2024, each taxpayer, whose tax shall be determined by such reassessment to have been relatively too low, shall be charged, in addition to all other taxes, a sum equal to the difference between the amount of taxes charged upon such unequal original assessment and the amount which would have been charged had such reassessment been made in time. The department of revenue, or its authorized agent, shall at any time have access to all assessment and tax rolls herein referred to for the purpose of assisting the local clerk and in order that the results of the reassessment may be carried into effect.

70.855 (1) Applicability. (intro.) The department of revenue shall assess real and personal property assessed as commercial property under s. 70.32 (2) (a) 2. if all of the following apply:

70.855 (1) (a) The property owner and the governing body of the municipality where the property is located submit a written request to the department on or before March 1 of the year of the assessment to have the department assess the property owner’s real and personal commercial property located in the municipality.

70.855 (1) (b) The written request submitted under par. (a) specifies the items of personal property and parcels of real property for the department’s assessment.

70.995 (1) (a) In this section “manufacturing property” includes all lands, buildings, structures and other real property, as defined in s. 70.03, in this state, used in manufacturing, assembling, processing, fabricating, making, or milling tangible personal property for profit. Manufacturing property also includes warehouses, storage facilities, and office structures in this state when the predominant use of the warehouses, storage facilities, or offices is in support of the manufacturing property, and all personal property owned or used by any person engaged in this state in any of the activities mentioned, and used in the activity, including raw materials, supplies, machinery, equipment, work in process and finished inventory when located at the site of the activity. Establishments engaged in assembling component parts of manufactured products are considered manufacturing establishments if the new product is neither a structure nor other fixed improvement. Materials processed by a manufacturing establishment include products of agriculture, forestry, fishing, mining, and quarrying. For the purposes of this section, establishments which engage in mining metalliferous minerals are considered manufacturing establishments.

70.995 (4) Whenever real property or tangible personal property is used for one, or some combination, of the processes mentioned in sub. (3) and also for other purposes, the department of revenue, if satisfied that there is substantial use in one or some combination of such processes, may assess the property under this section. For all purposes of this section the department of revenue shall have sole discretion for the determination of what is substantial use and what description of real property or what unit of tangible personal property shall constitute “the property” to be included for assessment purposes, and, in connection herewith, the department may include in a real property unit, real property owned by different persons. Vacant property designed for use in manufacturing, assembling, processing, fabricating, making, or milling tangible property for profit may be assessed under this section or under s. 70.32 (1), and the period of vacancy may not be the sole ground for making that determination. In those specific instances where a portion of a description of real property includes manufacturing property rented or leased and operated by a separate person which does not satisfy the substantial use qualification for the entire property, the local assessor shall assess the entire real property description and all personal property not exempt under s. 70.11 (27). The applicable portions of the standard manufacturing property report form under sub. (12) as they relate to manufacturing machinery and equipment shall be submitted by such person.