United States · 2026
Iowa vs South Carolina Income Tax 2026
At a $100K salary, Iowa is about $444 cheaper in 2026.
State brackets
3.8%
Bracket 1
$0and up
State brackets
1.99%
Bracket 1
$0to$30,000
5.21%
Bracket 2
$30,000and up
At common incomes, what's the tax difference?
Federal + state income tax after standard deductions, 2026. Excludes FICA.Compare your income
$
We'll pin your result at the top.Income
Iowa tax
South Carolina tax
Difference
$50,000single filer
$5,72011.4% effective
$4,8209.6% effective
$900 lessin South Carolina
$100,000single filer
$16,97017.0% effective
$17,41417.4% effective
$444 lessin Iowa
$200,000single filer
$44,33422.2% effective
$46,18823.1% effective
$1,854 lessin Iowa
Federal income tax — same for both
7 brackets · 10–37% · applies on top of state rates
10%
to $12,400
12%
to $50,400
22%
to $105,700
24%
to $201,775
32%
to $256,225
35%
to $640,600
37%
$640,600+
IA
Iowa
SC
South Carolina