United States · 2026
Alaska vs South Dakota Income Tax 2026
At a $100K salary, Alaska and South Dakota pay roughly the same income tax in 2026.
NO STATEIncome tax
Alaska levies no state income tax for 2026 — only federal income tax applies.
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 the standard deduction, 2026. Excludes FICA.Compare your income
$
We'll pin your result at the top.Income
Alaska tax
South Dakota tax
Difference
$50,000single filer
$3,8207.6% effective
$3,8207.6% effective
≈ even
$100,000single filer
$13,17013.2% effective
$13,17013.2% effective
≈ even
$200,000single filer
$36,73418.4% effective
$36,73418.4% effective
≈ even
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%
$640,601+
AK
Alaska
SD
South Dakota