HB 5017

Amends the Illinois Income Tax Act. Provides that the rate of tax on individuals, trusts, and estates shall be (i) 4.5667% of the taxpayer's net income for taxable years beginning on or after January 1, 2026 and ending before January 1, 2027, (ii) 4.1833% of the taxpayer's net income for taxable years beginning on or after January 1, 2027 and ending before January 1, 2028, and (iii) 3.8% of the taxpayer's net income for taxable years beginning on or after January 1, 2028 (currently, 4.95%). Provides that the rate of tax for corporations is (i) 6.3% of the taxpayer's net income for taxable years beginning on or after January 1, 2026 and ending before January 1, 2027, (ii) 5.6% of the taxpayer's net income for taxable years beginning on or after January 1, 2027 and ending before January 1, 2028, and (iii) 4.9% of the taxpayer's net income for taxable years beginning on or after January 1, 2028. Effective immediately.