Illinois ranks #22 of 51 for state tax burden in 2026.
State Tax Burden
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Source: IRS + State DOR (TY2024)
Updated 2026-04-25. Click any state for the full breakdown.
Illinois tax burden is 18.79% as of TY2024, according to IRS + State DOR. That puts Illinois at rank #22 of 50 US states, above the national average of 17.98%.
Among Illinois's neighbors, Wisconsin shows 19.19%, Iowa shows 19.64%, Missouri shows 18.54%. Use the CalcFi compare view to line all of them up: /maps/compare?cat=tax&states=il,wi,ia,mo. Nearby states share labor markets and housing corridors, so the comparison is usually the most relevant one.
Top Illinois metros include Chicago, Aurora, and Rockford. City-level tax burden data drops in Q3 2026 once BLS releases its metro-area tables for the year. Springfield is the state capital. Until then, the state-level number is the best available read.
Illinois reports a total state-local tax burden of 18.79% per Tax Foundation. That figure blends income, sales, property, and excise taxes as a share of state income, so it reflects the real cost even in states with no income tax. Use the income tax calculator for your personal effective rate.
5 cities ranked by state tax burden. Lower is better.
Note: City-level data covers property tax. Sales + local income tax land in Phase 2; full state burden is on the map above.
Effective combined federal + state income tax rate at $100k single-filer benchmark. Federal brackets per IRS Rev. Proc. 2023-34 (TY2024). State brackets per each state Department of Revenue current schedule.