INC TX-R AND D CREDIT House SponsorsRep. Joe C. Sosnowski, Jeff Keicher and Tom Weber 1/7/2025HouseSession Sine Die 35 ILCS 5/201 Amends the Illinois Income Tax Act. Increases the research and development credit by providing that the increase in research and development activities shall be based on an increase over 50% of the average of the qualifying expenditures for each year in the base period (instead of 100% of the average of the qualifying expenditures for each year in the base period). Provides that the research and development credit applies on a permanent basis. Effective immediately. 2/16/2023HouseFiled with the Clerk by Rep. Joe C. Sosnowski 2/16/2023HouseFirst Reading 2/16/2023HouseReferred to Rules Committee 11/16/2023HouseAdded Co-Sponsor Rep. Jeff Keicher 11/21/2023HouseAdded Co-Sponsor Rep. Tom Weber 1/7/2025HouseSession Sine Die