Bill Title: Amends the Illinois Income Tax Act. Increases the amount of the research and development credit by calculating the increase in the taxpayer's research activities in the State over 50% (currently, 100%) of the qualifying expenditures for the base period. Effective immediately.

Sponsorship: Partisan Bill (Republican 2)

Status: (Introduced - Dead) 2026-03-02 - Added Co-Sponsor Rep. Tony M. McCombie [HB5527 Detail]

Text: Latest bill text (Introduced) [HTML]

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