← The Atlas
No 25 State Dossier · IL

Illinois,
income tax, 2026.

Flat 4.95% rate. Chicago is a major economic center. Very high property taxes.

State rate
4.95%
Local
none
Sales tax
6.25%
COL index
94
§ I · At four incomes

Composite take-home, read at representative salaries.

Income Federal FICA State Take-home Effective
$60,000 $5,020 $4,590 $2,970 $47,420 21.0%
$100,000 $13,170 $7,650 $4,950 $74,230 25.8%
$150,000 $24,734 $11,475 $7,425 $106,366 29.1%
$250,000 $51,304 $15,064 $12,375 $171,257 31.5%
§ II · Other levies

What Illinois charges instead.

State sales
6.25%

base rate

Local
none

city income tax

Property
2.07%

effective

COL index
94

100 = national avg.

§ III · The instrument

Adjust the income, read the brackets.

Income Scale · Gross
Filing: Single
$
$0
$25k
$50k
$100k
$200k
$500k
§ IV · Brackets

Illinois State Income Tax Brackets (2026)

Illinois uses a flat tax rate applied to all taxable income.

4.95%
Flat rate on all taxable income
§ V · Regional

Compare Illinois with nearby states.

01
South Dakota No income tax
$75k → $61,592 02
Indiana 2.95% top rate
$75k → $59,379 03
Michigan 4.25% top rate
$75k → $58,404 04
Minnesota 9.85% top rate
$75k → $57,943 05
Wisconsin 7.65% top rate
$75k → $58,638
FAQ

Frequently asked questions.

What is the Illinois income tax rate for 2026?

Illinois has a flat 4.95% state income tax in 2026. At $75,000 gross income, state tax is approximately $3,713.

What is total (federal + state) take-home on $100,000 in Illinois?

On $100,000 in Illinois (2026): Federal income tax is approximately $13,170, Illinois state tax is approximately $4,950, FICA (SS + Medicare) is approximately $7,650. Total taxes: $25,770. Take-home: $74,230 (25.8% combined effective rate).

Does Illinois have sales tax?

Illinois's state sales tax rate is 6.25%. Local jurisdictions may add additional taxes.

Sources: IRS Rev. Proc. 2025-32, Tax Foundation 2025 State Rates, Federation of Tax Administrators Compare Illinois globally →