United States · 2024
Idaho vs Illinois Income Tax 2024
At a $100K salary, Idaho and Illinois pay roughly the same income tax in 2024.
At common incomes, what's the tax difference?
Federal + state income tax after the standard deduction, 2024. Excludes FICA.Compare your income
$
We'll pin your result at the top.Income
Idaho tax
Illinois tax
Difference
$50,000single filer
$6,03212.1% effective
$6,49113.0% effective
$459 lessin Idaho
$100,000single filer
$18,70518.7% effective
$18,79118.8% effective
≈ even
$200,000single filer
$48,09724.0% effective
$47,43923.7% effective
$659 lessin Illinois
Federal income tax — same for both
7 brackets · 10–37% · applies on top of state rates
10%
to $11,600
12%
to $47,150
22%
to $100,525
24%
to $191,950
32%
to $243,725
35%
to $609,350
37%
$609,351+
ID
Idaho
IL
Illinois