Complete guide to licensing, lien laws, and compliance for contractors in Illinois.
Illinois Department of Financial and Professional Regulation (local licensing)
Visit Board Website →Preliminary Notice: Notice of Intent to Lien required within 90 days of last furnishing (subcontractors/suppliers)
Filing Deadline: Within 4 months of last furnishing
Foreclosure Period: Within 2 years of filing lien
Sales Tax Rate: 6.25% state + local rates (up to 11% in Chicago)
Contractor Tax Notes: Materials taxable; labor generally exempt for new construction
Download Illinois-specific contractor documents:
Illinois Department of Financial and Professional Regulation
Springfield, IL 62701
Illinois Department of Revenue
Springfield, IL 62702