Illinois calculators
Every tool below uses Illinois's own rates and rules — not a national average.
Provisional figures. Some of the rates below are seeded and awaiting verification against primary sources. Each calculator shows the same notice until its data is confirmed.
Quick facts
- State income tax
- Flat 4.95%
- One rate applies to all taxable wage income.
- Sales tax
- 6.25% state
- Combined average of 8.86% once local rates stack on.
- Property tax
- ~2.08% effective
- Effective statewide median; county rates vary widely.
Illinois calculators
Common questions
- Does Illinois have a state income tax?
- Yes. Illinois's income tax is flat 4.95%. One rate applies to all taxable wage income.
- What is the sales tax in Illinois?
- The state rate is 6.25%. Combined average of 8.86% once local rates stack on.
- How does overtime work in Illinois?
- Federal rule only: time-and-a-half past 40 hours in a workweek, with no daily threshold.