Wisconsin Department of Workforce Development
P.O. Box 7946
Madison, WI 53707-7946
Phone: (608) 266-3131
Fax: (608) 266-1784
Web: http://dwd.wisconsin.gov

Comments: The Department's primary responsibilities include providing job services, training and employment assistance to people looking for work, at the same time as it works with employers on finding the necessary workers to fill current job openings.

Bureau of Child Support
Web: http://dwd.wisconsin.gov/bcs/

Comments: If you have questions regarding child support please contact your local Child Support Agency.

Wisconsin Department of Revenue
P.O. Box 8906
Madison, WI 53708-8906
Phone: (608) 266-2772
Fax: (608) 267-0834
Web: http://www.revenue.wi.gov/

Wisconsin Division of Unemployment Insurance
Web: http://dwd.wisconsin.gov/ui/

Comments: Handbook for Employers: http://dwd.wisconsin.gov/ui201/
Bureau of Tax and Accounting: http://dwd.wisconsin.gov/uitax/

Internal Revenue Service
Phone: (800) 829-1040
Web: http://www.irs.gov

Comments: Contact the IRS for FEIN related questions, or to request W-4 or other federal tax forms.

United States Department of Labor
Web: http://www.dol.gov

Comments: Provides information pertaining to federal minimum wage, employee pay, and other labor related issues.

Immigration and Naturalization Service (INS)
Phone: (800) 870-3676 (forms)
Web: http://uscis.gov/graphics/formsfee/forms/index.htm

Comments: Please use the above Web address to request the I-9 or other INS forms.

Social Security Administration
Phone: (800) 792-6270
Web: http://www.ssa.gov

Comments: Employers can verify whether an employee's social security number is valid by calling the above number, or by visiting this Web site: www.ssa.gov/employer/ssnv.htm.