Synopsis As Introduced Amends the Illinois Income Tax Act. Provides that the research and development credit applies on a permanent basis. Provides that the credit may be carried forward for a period of 20 years (instead of 5 years). Increases the amount of the research and development credit by providing that the increase in qualifying expenditures shall be an increase over 50% (instead of 100%) of the average of the qualifying expenditures for each year in the base period. Effective immediately.