Who did that

Bruce Rauner

Governor of Illinois (2015–2019)

Photo: Staff Sgt. Lealan Buehrer · PD-USGov · Wikimedia Commons

“I will not sign any tax increase.”

Rauner vetoed the July 2017 income-tax increase (3.75% to 4.95%); the General Assembly overrode. It appears under his term because he held office when it took effect — not because he signed it.

Rates last moved while in office

Rate changes dated while they held the office that keeps that tax — mayor for city, governor for Illinois, president for federal, Cook Board president for county. Dated while in office is not authorship: a governor who vetoed a hike that the legislature overrode still shows that date under their term. A bigger standard deduction is a tax cut. Renewed means a cut was made permanent.

Raised or added

When	Tax	What happened
1 Jul 2017	Illinois income tax	3.75% to 4.95%Legislature raised the rate 3.75% → 4.95%. Governor Rauner vetoed; General Assembly overrode. Still 4.95% in 2026.