United States · 2025
Iowa vs Oklahoma Income Tax 2025
At a $100K salary, Iowa is about $460 cheaper in 2025.
State brackets
3.8%
Bracket 1
$0and up
State brackets
0.25%
Bracket 1
$0to$1,000
0.75%
Bracket 2
$1,001to$2,500
1.75%
Bracket 3
$2,501to$3,750
2.75%
Bracket 4
$3,751to$4,900
3.75%
Bracket 5
$4,901to$7,200
4.75%
Bracket 6
$7,200and up
At common incomes, what's the tax difference?
Federal + state income tax after the standard deduction, 2025. Excludes FICA.Compare your income
$
We'll pin your result at the top.Income
Iowa tax
Oklahoma tax
Difference
$50,000single filer
$5,77211.5% effective
$5,75611.5% effective
≈ even
$100,000single filer
$17,24917.2% effective
$17,70917.7% effective
$460 lessin Iowa
$200,000single filer
$44,66722.3% effective
$46,07723.0% effective
$1,410 lessin Iowa
Federal income tax — same for both
7 brackets · 10–37% · applies on top of state rates
10%
to $11,925
12%
to $48,475
22%
to $103,350
24%
to $197,300
32%
to $250,525
35%
to $626,350
37%
$626,351+
IA
Iowa
OK
Oklahoma