United States · 2026
Delaware vs South Dakota Income Tax 2026
At a $100K salary, South Dakota is about $5,369 cheaper in 2026.
State brackets
2.2%
Bracket 1
$2,001to$5,000
3.9%
Bracket 2
$5,000to$10,000
4.8%
Bracket 3
$10,000to$20,000
5.2%
Bracket 4
$20,000to$25,000
5.55%
Bracket 5
$25,000to$60,000
6.6%
Bracket 6
$60,000and 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
Delaware tax
South Dakota tax
Difference
$50,000single filer
$6,02812.1% effective
$3,8207.6% effective
$2,208 lessin South Dakota
$100,000single filer
$18,53918.5% effective
$13,17013.2% effective
$5,369 lessin South Dakota
$200,000single filer
$48,70324.4% effective
$36,73418.4% effective
$11,969 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+
DE
Delaware
SD
South Dakota