Resources

Internal Revenue Service (IRS)

http://www.irs.gov

Illinois Department of Revenue (IDOR)

http://www.revenue.state.il.us

Illinois Department of Employment Security

http://www.ides.state.il.us

IRS Tax Withholding Calculator

http://www.irs.gov/individuals/article/0,,id=96196,00.html

Social Security Administration

http://www.ssa.gov/

Electronic Federal Tax Payment System

http://www.eftps.gov