Minnesota Withholding Tax is state income tax you as an employer take out of your employees' wages. You will need a Minnesota Tax ID Number and an active withholding tax account.To complete an enterable form on a computer: Download the Word document to your computer. Open your saved file and select the View tab in the upper left corner. The following Minnesota Business Corporations forms are available in pdf. Use the following form to register a Minnesota Business Corporation. Employers are required to withhold both federal and state income taxes and FICA tax from their employees' wages as soon as they are paid. The following Minnesota Nonprofit Corporation forms are available in pdf. Use this form to register a Minnesota Nonprofit Corporation under Chapter 317A. Complete Form W-4MN so that your employer can withhold the correct Minnesota income tax from your pay.