United States · 2026
Alabama vs South Dakota Income Tax 2026
At a $100K salary, South Dakota is about $4,810 cheaper in 2026.
State brackets
2%
Bracket 1
$0to$500
4%
Bracket 2
$500to$3,000
5%
Bracket 3
$3,000and up
NO STATEIncome tax
South Dakota levies no state income tax for 2026. Only federal income tax applies.
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
Alabama tax
South Dakota tax
Difference
$50,000single filer
$6,13012.3% effective
$3,8207.6% effective
$2,310 lessin South Dakota
$100,000single filer
$17,98018.0% effective
$13,17013.2% effective
$4,810 lessin South Dakota
$200,000single filer
$46,54423.3% effective
$36,73418.4% effective
$9,810 lessin South Dakota
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+
AL
Alabama
SD
South Dakota