Illinois W-4 Withholding Calculator 2026

Federal + Illinois state income tax side-by-side.

Your Paycheck

$

Filing Status

Credits & Adjustments (Optional)

$

$2,000 per child under 17

$
$
$

File your Illinois return

Total withholding per paycheck

$360

$9,363 / year

Annual gross$65,000

Federal

Taxable income$50,000
Income tax$6,146
Per paycheck$236
Effective rate9.5%
Marginal rate22.0%

Illinois State Tax

Annual state tax$3,218
Per paycheck$124
Effective rate5.0%
Marginal rate5.0%