Wisconsin residents are required to file a completed Form WT-4 with each of his or her employer.
Exemption from withholding – You may claim exemption from withholding of Wisconsin income tax if you had no liability for income tax for last year, and you expect to incur no liability for income tax for this year. You may not claim exemption if your return shows tax liability before the allowance of any credit for income tax withheld. If you are exempt, your employer will not withhold Wisconsin income tax from your wages.
If you are an Illinois resident you must complete this form and W220 Nonresident employee withholding reciprocity declaration WI.
NOTE: THIS DECLARATION MAY ONLY BE USED BY A NONRESIDENT WORKING IN WISCONSIN WHO IS A LEGAL RESIDENT OF ILLINOIS, INDIANA, KENTUCKY, OR MICHIGAN.
Reciprocal agreements Wisconsin has with Illinois, Indiana, Kentucky, and Michigan exempt legal residents of those states from Wisconsin income taxes on compensation (e.g., wages, fees, commissions) earned for personal services performed in Wisconsin.
A nonresident employee qualifying for this exemption must complete and file this declaration with his or her employer as authorization for the employer to stop the withholding of Wisconsin income taxes.
W-220 (R. 11-09) Wisconsin Department of Revenue
Under 2017 Wisconsin Act 107, all school districts are required to have, as a condition of employment, a physical exam including a tuberculosis screening questionnaire approved by the Department of Health Services. The exam and screening must be completed before you start working.