Wis. Stat. § 73.07: District offices, supplies, expenses.

(1) Office furniture and equipment furnished to income assessment district and branch offices by counties prior to July 1, 1986, shall remain in those offices until the department of revenue determines that the furniture and equipment are no longer needed.

(2) Office furniture and equipment furnished to supervisors of equalization prior to January 1, 1974, shall continue to be furnished until no longer required by them.

(3) The county board of any county shall provide rooms for the use of the tax appeals commission upon the request of the chairperson of the commission. Hearings of the commission may also be held in the department’s district income tax office when the chairperson of the commission deems it advisable.