That is when State Farm — Illinois’s largest homeowners insurer, headquartered in Bloomington — begins implementing a 27.2 percent average rate increase for Illinois homeowners. Both the Illinois House and Senate passed HB4273 — a homeowners insurance rate review bill — on May 27, 2026, by comfortable margins. What Illinois Homeowners Can Do Right NowThe State Farm increase applies to renewals — not mid-policy. If your State Farm homeowners policy renews in September, October, or later this year, the new rate applies at that renewal. State Farm’s 27.2 percent increase is specific to State Farm — other Illinois carriers have not filed equivalent increases.