Chapter 70

70.51(1a) (1a) If the board of review has not completed its work within the time limited by the first Monday in November, it shall nevertheless deliver the assessment roll to the commissioner of assessments as therein required, and the commissioner of assessments shall thereupon perfect the same as though the board of review had fully completed its work thereon. In any case wherein the board of review alters the assessment after the first Monday of November and before the treasurer is required to make the return of delinquent taxes, the assessment roll and the tax roll may be corrected accordingly in the manner provided in s. 74.05, except that the consent of the treasurer shall not be required.

70.51(2) (2) The county clerk of any county having a population of 750,000 or more and containing a city of the 1st class shall deliver the county clerk’s certificates of apportionment of taxes to the commissioner of assessments instead of the city clerk of such city.

70.51 History History: 1975 c. 39, 199; 1977 c. 29 s. 1647 (19); 1977 c. 273; 1983 a. 192, 220; 1987 a. 378; 1991 a. 39, 156, 189, 315, 316; 2017 a. 207 s. 5.

70.511 70.511 Delayed action of reviewing authority.

70.511(1) (1) Value to be used in setting tax rate. If the reviewing authority has not completed its work prior to the time set by a municipality for establishing its current tax rate, the municipality shall use the total value, including contested values, shown in the assessment roll in setting its tax rate.

70.511(2) (2) Tax levies, refunds.

70.511(2)(a) (a) If the reviewing authority has not made a determination prior to the time of the tax levy with respect to a particular objection to the amount, valuation or taxability of property, the tax levy on the property or person shall be based on the contested assessed value of the property. A tax bill shall be sent to, and paid by, the person subject to the tax levy as though there had been no objection filed, except that the payment shall be considered to be made under protest. The entire tax bill shall be paid when due under s. 74.11, 74.12 or 74.87 even though the reviewing authority has reduced the assessment prior to the time for full payment of the tax billed. The requirement to pay a tax timely under this paragraph does not apply to taxes due and payable in 2020 if paid by October 1, 2020, or by any installment date for which taxes are due after October 1, 2020, nor to taxes due and payable in 2021 if paid by October 1, 2021, or by any installment date for which taxes are due after October 1, 2021.

70.511(2)(b) (b) If the reviewing authority reduces the value of the property in question, or determines that manufacturing property is exempt, the taxpayer may file a claim for refund of taxes resulting from the reduction in value or determination that the property is exempt. If claim for refund is filed with the clerk of the municipality on or before the November 1 following the decision of the reviewing authority, the claim shall be payable to the taxpayer from the municipality no later than January 31 of the succeeding year. A claim filed after November 1 shall be paid to the taxpayer by the municipality no later than the 2nd January 31 after the claim is filed. Interest on the claim shall be paid to the taxpayer when the claim is paid at the average annual discount rate determined by the last auction of 6-month U.S. treasury bills before the objection per day for the period of time between the time when the tax was due and the date that the claim was paid. If the taxpayer requests a postponement of proceedings before the reviewing authority, interest on the claim shall permanently stop accruing at the date of the request. If the hearing is postponed at the request of the taxpayer, the reviewing authority shall hold a hearing on the appeal within 30 days after the postponement is requested unless the taxpayer agrees to a longer delay. If the reviewing authority postpones the hearing without a request by the taxpayer, interest on the claim shall continue to accrue. No interest may be paid if the reviewing authority determines under s. 70.995 (8) (a) that the value of the property was reduced because the taxpayer supplied false or incomplete information. If taxes are refunded, the municipality may proceed under s. 74.41.

70.511(2)(bm) (bm) No later than July 1 of each year, each municipality that pays a refund under par. (b) for property that is assessed under s. 70.995 shall notify the department of administration of the amount of all such refunds paid by the municipality in the previous fiscal year. Annually, no later than the 3rd Monday in November, from the appropriation account under s. 20.835 (2) (br), the department of administration shall pay to each municipality that pays a refund under par. (b) for property that is assessed under s. 70.995 an amount that is equal to 20 percent of the interest on such refunds paid by the municipality in the previous fiscal year and that has accrued up to the date of the determination by the tax appeals commission of the municipality’s obligation.

70.511(2)(c) (c) If the reviewing authority increases the value of the property in question, the increase in value shall in the case of manufacturing property assessed by the department of revenue under s. 70.995 be assessed as omitted property as prescribed under s. 70.995 (12). In the case of all other property s. 70.44 shall apply.

70.511 History History: 1975 c. 39; 1977 c. 29; 1979 c. 34, 221; 1981 c. 20, 132, 391; 1983 a. 27, 300; 1987 a. 378, 399, 403; 1989 a. 104; 1991 a. 39; 2005 a. 405; 2007 a. 96; 2019 a. 185; 2021 a. 80.

70.52 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 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.

70.52 History History: 1977 c. 29, 203, 273; 2001 a. 107; 2017 a. 17; 2023 a. 12.

70.52 Annotation A municipality is entitled to rely on the address provided on the transfer tax return until it is provided with information reasonably calculated to inform of a new address. Pocius v. Kenosha County, 231 Wis. 2d 596, 605 N.W.2d 915 (Ct. App. 1999), 98-3176.

70.53 70.53 Statement of assessment and exemptions.

70.53(1) (1) Upon the correction of the assessment roll under s. 70.52, each city, village, and town clerk shall prepare and, on or before the 2nd Monday in June, transmit to the department of revenue all of the following:

70.53(1)(b) (b) A detailed statement of each of the several classes of taxable real estate, entering land and improvements separately, as prescribed in s. 70.32 (2).

70.53(1)(c) (c) A detailed statement of the aggregate of all taxable property by elementary and high school district and by technical college district.

70.53(1)(d) (d) A detailed statement of the aggregate of each of the several items of exempt real property as specified by the department of revenue, entering land and improvements separately.

70.53(2) (2) The city, village, or town clerk shall make available to the department of revenue at its request a copy of the corrected assessment roll from which the statements required under sub. (1) are prepared. Failure to comply with this section subjects the taxation district to the penalty provisions under s. 73.03 (6). The department of revenue shall review and correct the statements.

70.53(3) (3) Every county clerk shall, at the expense of the county, annually procure and furnish to each city, village, and town clerk forms for the statements required under sub. (1), the form of which shall be prescribed by the department of revenue.

70.53 History History: 1971 c. 65, 215; 1973 c. 61, 90, 243; 1977 c. 29 s. 1647 (9); 1977 c. 300 ss. 4, 8; 1979 c. 34, 216, 221; 1983 a. 275 ss. 6, 16; 1987 a. 399; 1993 a. 399; 2001 a. 107; 2023 a. 12.

70.55 70.55 Special messenger. Whenever any town, city or village clerk shall have failed to transmit any such statement within the time fixed as aforesaid, the county treasurer or the department of revenue shall send a messenger therefor, who shall be paid and the expenses charged back as provided in s. 69.67 or 73.03 (6), respectively; and whenever any county treasurer shall have failed to transmit any such statement, within the time fixed as aforesaid, the department of revenue may send a messenger therefor, who shall be paid and the expenses therefor charged back to the county.

70.55 History History: 1975 c. 295 s. 9; 1991 a. 39.

70.555 70.555 Provisions directory. The directions herein given for the assessing of lands and personal property and levying and collecting taxes shall be deemed directory only, and no error or informality in the proceedings of any of the officers entrusted with the same, not affecting the substantial justice of the tax, shall vitiate or in anywise affect the validity of such tax or assessment.

70.56 70.56 Lost roll.

70.56(1) (1) New assessment. Whenever the assessment roll of any assessment district shall be lost or destroyed before the second Monday of October in any year and before the tax roll therefrom has been completed the assessor of such district shall immediately prepare a new roll and as soon thereafter as practicable make a new assessment of the property in the assessor’s district. If the board of review for such district shall have adjourned without day before such new assessment is completed such board shall again meet at a time fixed by the clerk of the town, city or village, not later than the fourth Monday in October, and like proceedings shall be had, as near as may be, in reference to such new assessment and assessment roll as in case of other assessments, and such clerk shall give notice of the time and place of such meeting of the board of review as is provided in s. 70.47 (2). Such new assessment and assessment roll shall be deemed the assessment and assessment roll of such assessment district to all intents and purposes. In case the assessor shall fail to make such new assessment or the board of review shall fail to meet and review the same, or any assessment roll is lost or destroyed after the second Monday in October in any year and before the tax roll therefrom is completed, or both the assessment roll and tax roll are lost or destroyed, then the county clerk shall make out and deliver a tax roll in the manner and with like effect as provided in s. 70.71.

70.56(2) (2) Same. Whenever a tax roll in any town, city or village shall be lost or destroyed before it has been returned by the treasurer or sheriff holding the same, a new roll shall be prepared in like manner as the first, and delivered to such treasurer or sheriff, who shall complete the collection of the taxes and return such new tax roll in the manner provided for the original tax roll.

70.56 History History: 1977 c. 29 s. 1647 (19); 1987 a. 378; 1991 a. 316.

70.57 70.57 Assessment of counties and taxation districts by department.

70.57(1) (1) 

70.57(1)(a) (a) The department of revenue before August 15 of each year shall complete the valuation of the property of each county and taxation district of the state. From all the sources of information accessible to it the department shall determine and assess by class the value of all property subject to general property taxation in each county and taxation district. If the department is satisfied that the assessment by a county assessor under s. 70.99 is at full value, it may adopt that value as the state’s full value.

70.57(1)(b) (b) The department shall set down a list of all the counties and taxation districts and opposite to the name of each county and taxation district the valuation determined by the department, which shall be the full value according to its best judgment.

70.57(1)(c) (c) There shall also be prepared a list of all the counties of the state with the valuation determined for each county listed opposite the name of the county. The list shall be certified by the secretary of revenue as the assessment of the counties of the state made by the department and be delivered to the department of administration.

70.57(1)(d) (d) In any case where the department, through mistake or inadvertence, has assessed to any county or taxation district, in the current year or in the previous year, a greater or less valuation for any year than should have been assessed, it shall correct the error. The department shall add or subtract, as the case may be, from the valuation of the county or taxation district, as determined by the department at the assessment in the year after the error is discovered, the amount omitted from or added to the true valuation of the county in the former assessment in consequence of the error. The result shall be taken as the full value of the county for the latter year and a final correction of the error.

70.57(1b) (1b) On or before August 1 of each year, the department of revenue shall publish on its Internet site for each county and taxation district a preliminary determination of its equalized value, tax incremental finance district values as provided under s. 66.1105 (5) (g) and (6), and net new construction value as provided under ss. 66.0602 and 79.05. If a county or taxation district discovers a clerical, arithmetic, transpositional, or similar error in the department’s determination that would result in the overvaluation or undervaluation of the property located in the county or taxation district, the county or taxation district shall notify the department of the error no later than August 7. The department shall correct, as provided in sub. (1) (d), any error reported and verified by the department under this subsection that results in an overvaluation or undervaluation of the property located in the taxation district greater than 2 percent. The correction shall be reflected in the equalized value provided to the county or taxation district under sub. (1m), except that amended assessment reports filed after the 2nd Monday in June shall not be subject to correction by the department as provided in this subsection.

70.57(1m) (1m) On August 15 the department of revenue shall notify each county and taxation district of its equalized value. The department of revenue shall make available to each taxation district a list of sales within the taxation district and shall indicate whether or not those sales were used or rejected in establishing equalized value. If insufficient residential and agricultural sales in a taxation district require the department to use sales information from other taxation districts in establishing equalized value, the department shall so notify the affected taxation district and, upon written request from that taxation district, shall make available to the taxation district the sales information from other taxation districts and other information used to establish the equalized value. Upon resolution by the governing body of a county or taxation district, the department shall review the equalized value established for the county or taxation district.

70.57(2) (2) 

70.57(2)(a) (a) If the state board of assessors, the tax appeals commission or a court makes a final redetermination on the assessment of property subject to taxation under s. 70.995 that is higher or lower than the previous assessment, the department of revenue shall recertify the equalized value of the school district in which the property subject to taxation under s. 70.995 is located.

70.57(2)(b) (b) If a court makes a final redetermination on the assessment of telephone company property subject to taxation under s. 70.112 (4) and subch. IV of ch. 76 that is lower than the previous assessment, the department of revenue shall recertify the equalized value of the school district in which such property is located.

70.57(3) (3) 

70.57(3)(a) (a) In determining the value of agricultural land under sub. (1), the department shall fulfill the requirements under s. 70.32 (2r).

70.57(3)(b) (b) In determining the value under sub. (1) of agricultural forest land, as defined in s. 70.32 (2) (c) 1d., and undeveloped land, as defined in s. 70.32 (2) (c) 4., the department shall fulfill the requirements under s. 70.32 (4).

70.57(4) (4) 

70.57(4)(a) (a) From the appropriation under s. 20.566 (2) (b), the department shall provide payments to any taxation district that certifies to the department, in the manner prescribed by the department, that the most recent valuation of the taxation district’s property under this section is greater than it should be because of a clerical, arithmetic, transpositional, or similar error made by the department, as confirmed by the department, and that the amount of the overvaluation represents 7.5 percent or more of the taxation district’s valuation under this section in the year prior to the year in which the error occurred.

70.57(4)(b) (b) If property tax bills for the assessment year in which the error relates have been distributed to property owners, the taxation district receiving payments under par. (a) shall use the payments to make loans to persons who own property located in the taxation district and who are paying more property taxes than they should be as a result of the error. A person may receive a loan by applying, in the manner prescribed by the department, to the taxation district in which the person’s property is located no later than June 15 of the year following the error. The state shall collect the amount of any loan issued under this paragraph as a state special charge against the taxation district for the year after the year in which the error occurred and the special charge shall not be included in the taxation district’s levy. The taxation district shall assess the loan amount as a special charge against the property for which the loan was made on the property tax bill succeeding the loan, as provided under ch. 74 and s. 66.0627 (1) (c). Except for interest and penalties, as provided under s. 74.47, that apply to any delinquent special charge based on the loan amount, neither the department nor the taxation district may charge interest on any loan issued under this paragraph. The maximum loan amount that a person may receive under this paragraph shall be calculated by multiplying the assessed value of the person’s property by a decimal determined by the department as follows:

70.57(4)(b)1. 1. For the year in which the error occurred, apportion county, school district, technical college district, and metropolitan sewerage district property taxes to the taxation district using the taxation district’s erroneous valuation.

70.57(4)(b)2. 2. For the year in which the error occurred, apportion county, school district, technical college district, and metropolitan sewerage district property taxes to the taxation district using the taxation district’s correct valuation.

70.57(4)(b)3. 3. Subtract the amount determined under subd. 2. from the amount determined under subd. 1.

70.57(4)(b)4. 4. Divide the amount determined under subd. 3. by the taxation district’s assessed value for the year in which the error occurred and express the result as a decimal.

70.57(4)(c) (c) With regard to loans made under par. (b), the department shall make the payments under par. (a) monthly, based on the amounts requested in loan applications to the taxation district each month, except that the department shall make no payments to a taxation district after June 30 of the year following the year in which the error occurred.

70.57(4)(d) (d) If property tax bills for the assessment year in which the error relates have not been distributed to property owners, the department may make one payment from the appropriation under s. 20.566 (2) (b) to the taxation district to reduce the property taxes that would otherwise be imposed as a result of the error. The department shall confirm the amount of the payment and provide guidance to the taxation district in allocating the amount to specific parcels. In the year following the error, the taxation district, with the guidance of the department, shall collect from property owners in the taxation district an amount equal to the amount of the payment and shall remit the amount collected to the department. The department may not charge interest for any payment under this paragraph. Notwithstanding s. 66.0602 or 79.05, payments under this paragraph in both the year the payment is made to the taxation district and the year the taxation district returns the payment to the department shall not be included in determining the taxation district’s or the county’s levy, or allowable levy under s. 66.0602, or in determining the taxation district’s eligibility for, and calculation of payments, under s.79.05. Solely for purposes of relating annual revenue to estimated expenses, the amounts collected and remitted to the state under this paragraph shall be deemed accrued receipts as of the close of the fiscal year, but no revenue shall be deemed accrued receipts unless it is deposited by this state on or before August 31.

70.57 History History: 1973 c. 90, 336; 1977 c. 29 ss. 761, 762, 1647 (12); 1977 c. 300 ss. 5, 8; 1981 c. 20; 1983 a. 372; 1985 a. 29, 54, 153, 246, 332, 399; 1991 a. 39; 1995 a. 27, 225; 2003 a. 33; 2007 a. 4; 2009 a. 11; 2011 a. 64; 2015 a. 321; 2017 a. 59.

70.57 Cross-reference Cross-reference: See also ch. Tax 18, Wis. adm. code.

70.57 Annotation “Taxation under s. 70.995” as used in sub. (2) means “assessment under s. 70.995.” 73 Atty. Gen. 119.

70.575 70.575 State assessment, time. The department, not later than August 15 in each year, shall total the assessments of counties made by the department of revenue under s. 70.57, and the total shall be known as the state assessment and shall be the full market value of all general property of the state liable to state, county and local taxes in the then present year. The department shall enter upon its records such state assessment.

70.575 History History: 1977 c. 29 ss. 763, 1647 (17); 1977 c. 300 ss. 6, 8.

70.58 70.58 Forestation state tax.

70.58(1) (1) Except as provided in subs. (2) and (3), there is levied an annual tax of two-tenths of one mill for each dollar of the assessed valuation of the property of the state as determined by the department of revenue under s. 70.57, for the purpose of acquiring, preserving and developing the forests of the state and for the purpose of forest crop law and county forest law administration and aid payments, for grants to forestry cooperatives under s. 36.56, and for the acquisition, purchase and development of forests described under s. 25.29 (7) (a) and (b), the proceeds of the tax to be paid into the conservation fund. The tax shall not be levied in any year in which general funds are appropriated for the purposes specified in this section, equal to or in excess of the amount which the tax would produce and no tax shall be levied under this section beginning with the property tax assessments as of January 1, 2017.

70.58(2) (2) In each of 3 years beginning with the property tax assessments as of January 1, 2005, the department of revenue shall adjust the rate of the tax imposed under this section so that the percentage increase from the previous year in the total amount levied under this section does not exceed 2.6 percent. The rate determined by the department of revenue for the property tax assessment as of January 1, 2007, shall be the rate of the tax imposed under this section for all subsequent years, ending with the property tax assessments as of January 1, 2017.

70.58(3) (3) In fiscal year 2017-18, and in each fiscal year thereafter, an amount equal to 0.1697 mills for each dollar of the assessed valuation of the property of the state as determined by the department of revenue under s. 70.57 shall be transferred from the general fund to the conservation fund for the purposes described under sub. (1).

70.58 History History: 1975 c. 39 s. 734; 1977 c. 29, 418; 1979 c. 34; 1983 a. 27; 1989 a. 359; 1999 a. 9; 2005 a. 25; 2017 a. 59.

70.60 70.60 Apportionment of state tax to counties.

70.60(1) (1) The department of administration shall compute the state tax chargeable against each county basing such computation upon the valuation of the taxable property of the county as determined by the department of revenue pursuant to s. 70.57. On or before the 4th Monday of August in each year the department of administration shall certify to the county clerk of each county the amount of the taxes apportioned to and levied upon the county, and all special charges which the county clerk is required by law to make in any year to any such county to be collected with the state tax. The county clerk shall then charge to each county the whole amount of such taxes and charges, and the same shall be paid into the state treasury as provided by law.

70.60 History History: 1977 c. 29 s. 1647 (14); 1977 c. 273; 1997 a. 35.

70.62 70.62 County tax rate.

70.62(1) (1) County board to determine. The county board shall determine by resolution the amount of taxes to be levied in its county for the year.

70.62(3) (3) Omitted tax. Whenever the county board of any county shall fail to apportion against any town, city or village thereof in any year any state, county or school tax or any part thereof properly chargeable thereto, such county board shall, in any succeeding year, apportion such taxes against such town, city or village and add the proper amount thereof to the amount of the current annual tax then apportioned thereto.

70.62(4) (4) Exemption from levy.

70.62(4)(a) (a) If a county levies a tax under sub. (1) for operating or maintaining, or providing services to, an airport, for public health services, or economic development services, a town located in the county, and on Madeline Island, shall be exempt from the taxes levied for such purposes if the town applies to the county for an exemption no later than September 1 of the year to which the exemption relates and the town provides documentation with the application that indicates that the town levies a tax for the same purpose that is at least equal to the amount calculated as follows:

70.62(4)(a)1. 1. Divide the amount of tax the county levied in the prior year for operating or maintaining, or providing services to, an airport, for public health services, or economic development services, less any amount levied for capital expenditures, by the equalized valuation of property in that area of the county that was subject to the county property tax levy for such services in the prior year.

70.62(4)(a)2. 2. Multiply the amount determined under subd. 1. by the equalized valuation of property in the town for the current year.

70.62(4)(am) (am) The county board shall make a decision to approve or disapprove an application received under par. (a), and notify the applicant of its decision, no later than 30 days after the date on which it receives the application. If the county board disapproves an application under par. (a) the town may appeal the county board’s decision to the circuit court of the county.

70.62(4)(b) (b) For purposes of par. (a), “public health services” includes emergency fire, ambulance, and medical services and operating or maintaining a community health care clinic. For purposes of par. (a), “economic development services” includes providing community, business, and economic development information and assistance services and programs, loans, surveys, design assistance, site preparation and infrastructure for brownfield development, administrative assistance, and permitting assistance.

70.62(4)(c) (c) No county may increase its levy on any municipality to compensate for granting the exemption under par. (a).

70.62 History History: 1973 c. 90, 333; 1975 c. 39, 80, 200, 224; 1977 c. 113 ss. 5, 6; 1977 c. 142; 1977 c. 418 ss. 482 to 487, 929 (42); 1979 c. 34, 122; 1979 c. 175 s. 51; 1979 c. 346 s. 15; 1981 c. 20, 61, 93; 1983 a. 27, 275; 1985 a. 29; 1997 a. 35; 2013 a. 282.

70.63 70.63 Apportionment of county and state taxes to municipalities.

70.63(1) (1) By county clerk. The county clerk shall apportion the county tax and the whole amount of state taxes and charges levied upon the county, as certified by the department of administration, among the towns, cities and villages of the county, according and in proportion to the valuation thereof as determined by the department of revenue. The county clerk shall carry out in the record book, opposite the name of each in separate columns, the amount of state taxes and charges and the amount of county taxes so apportioned thereto, and the amount of all other special taxes or charges apportioned or ordered, or which the clerk is required by law to make in any year to any town, city or village, to be collected with the annual taxes. The clerk shall certify to the clerk of and charge to each town, city and village, except in cities of the 1st class, the amount of all such taxes so apportioned to and levied upon it, and shall, at the same time, file with the county treasurer a certified copy of each apportionment.

70.63(2) (2) City of first class. The county clerk shall certify in a similar manner to the commissioner of assessments of each city of the first class located within the limits of the county.

70.63 History History: 1973 c. 90; 1981 c. 20; 1991 a. 156; 1997 a. 35.

70.63 Annotation The statutory duties of the county clerk under this chapter may not be transferred to the county auditor, but the county auditor may be granted supervisory authority over the manner in which such duties are exercised. OAG 6-08.

70.64 70.64 Review of equalized values.

70.64(1) (1) By tax appeals commission. The assessment and determination of the relative value of taxable general property in any county or taxation district, made by the department of revenue under s. 70.57, may be reviewed, and a redetermination of the value of such property may be made by the tax appeals commission, upon appeal by the county or taxation district. The filing of such appeal in the manner provided in this section by any county or taxation district shall impose upon the commission the duty, under the powers conferred upon it by s. 73.01 (4) (a), to review the assessment complained of. If, in its judgment based upon the testimony, evidence and record made on the preliminary hearing of such appeal, the commission finds such assessment to be unequal and discriminatory, it shall determine to correct such assessment to bring it into substantial compliance with law. Except as provided in this section, the appeal shall be taken and such review and redetermination shall be made as provided in ss. 73.01 and 73.015 and under the rules governing the procedure of the commission.

70.64(2) (2) Authorization of appeals. To authorize such appeal an order or resolution directing the same to be taken shall be adopted by the governing body of the county or taxation district taking the appeal at a lawful meeting of the governing body. When an appeal shall have been authorized the prosecution of it shall be in charge of the chairperson of the county board or county administrator or of the chairperson, mayor or president of the taxation district taking the appeal unless otherwise directed by the governing body. The officers or committee in charge of the appeal may employ attorneys to conduct the appeal. After authorizing an appeal as provided in this subsection, any 2 or more taxation districts in the same county may join in taking and prosecuting an appeal.

70.64(3) (3) Form of appeal. To accomplish an appeal there shall be filed with the tax appeals commission on or before October 15 an appeal in writing setting forth:

70.64(3)(a) (a) That the county or taxation district, naming the same, appeals to the tax appeals commission from the assessment made by the department of revenue under s. 70.57, specifying the date of such assessment.

70.64(3)(b) (b) Whether the appeal is to obtain a review and redetermination of the assessment of all the taxation districts of the county or of particular districts only, therein specified.

70.64(3)(c) (c) Whether review and redetermination is desired as to real estate, or personal property, or both.

70.64(3)(d) (d) That the appeal has been authorized by an order or resolution of the county board or governing body of the taxation district in whose behalf the appeal is taken.