No. All retirement payments received from the U.S. military retirement system (including payments from the Retired Serviceman's Family Protection Plan and the Survivor Benefit Plan) are exempt from Wisconsin income tax.
Defense Finance and Accounting Service (DFAS) only pays retirement income to military retirees and their surviving spouses and other family members. Therefore, retirement payments from this payer are always exempt from Wisconsin income tax.
https://www.revenue.wi.gov/pages/faqs/pcs-military.aspx#mil1
