Bill Title: Amends the Illinois Income Tax Act. Provides that the research and development credit applies on a permanent basis. Effective immediately.

Sponsorship: Partisan Bill (Republican 3)

Status: (Introduced - Dead) 2026-06-25 - Added as Co-Sponsor Sen. Seth Lewis [SB3873 Detail]

---

Bill Drafts

Revision	Date	Format	Source	View
Introduced	2026-02-06	HTML/Text	Link	View

Amendments

Amendment	Date	Disposition	Format	Source	View
No bill amendments currently on file for Illinois SB3873

Supplemental Documents

Title	Description	Date	Format	Source	View
No supplemental documents for Illinois SB3873 currently on file.