Wis. Stat. § 70.81

Upon completion of the review of such reassessment, each person entitled to compensation for services in respect thereto as provided in s. 70.80 shall make out a statement of the person’s claim therefor against the state of Wisconsin and execute a voucher for the payment thereof upon blank forms to be furnished by the department of revenue. Such statement shall show the number of days for which compensation is claimed, the rate per day, the character of the service, the total amount claimed, the address of the claimant, and, in case of witnesses, the number of miles traveled, which statement shall be verified by the affidavit of the claimant or of some person having knowledge of the facts. Each such claim shall be approved, if correct, by a member of such board and by the supervisor of equalization. A memorandum of all such claims, showing the number of days and character of service and amount due to each person, shall be entered at the foot of the record of the proceedings of such board.