Wis. Stat. § 71.72
Every resident of this state and every nonresident carrying on activities within this state, whether taxable or not under this chapter, who pays in any calendar year for services performed within this state by an individual remuneration that is excluded from the definition of wages in s. 71.63(6), in the amount of $600 or more, shall, on or before January 31 of the year following the year in which the payments are made, file a statement disclosing the name of the payor, the name and address of the recipient of the payment, and the total amount paid in the calendar year to the recipient. The person who pays for the services shall, on or before that deadline, furnish the recipient of the payment with a copy of the statement. In any case in which an individual receives wages, as defined in s. 71.63(6), and also remuneration for services which remuneration is excluded from such definition, both from the same payor, the wages and the excluded remuneration shall both be reported in the statement required by s. 71.71(2) in a manner satisfactory to the department, regardless of the amount of the excluded remuneration.
Wis. Stat. § 71.72