You must file Form IL-W-4 when Illinois. Income Tax is required to be withheld from compensation that you receive as an em- ployee.This section focuses on Pay, Taxes, Salaries, and Wages, including self-service applications. Visit Leave and Benefits for more information. Have each of your employees fill out a Form ILW4. Register with the state using the MyTax Illinois portal. Employees are responsible for determining if they meet income limits and are not eligible to contribute to Roth IRA accounts. Calculate how much you'll pay in property taxes on your home, given your location and assessed home value. Please reach out to schools directly to verify all information and enrollment eligibility. Inaccurate or false information on consumer reports can be a barrier to access to credit, employment and housing, according to CFPB.