Are you hiring your first employee in the state of Illinois? If so, we've got you covered with our comprehensive hiring guide.Companies have 20 days from when the new employee is hired to report them. However, this may not be limited to just new employees. This document is sometimes referred to as the charter. New Hire Paperwork for Illinois includes filing of federal and state forms. They are W-4, IL-W-4, I-9 and WOTC. The Illinois Department of Employment Security can assist you with finding new employees. Find out about labor market conditions and industry projections. Here are 8 standard steps that you'll want to take before hiring your first employee in Illinois.