Everyday money · SD
South Dakota Income Tax Calculator
Estimate your 2025 combined federal and South Dakota income tax — South Dakota has no state income tax, so you only owe federal tax.
InputsTY-2025
$
$
$
Federal + state tax13.4% effective
$13,449/yr
10% on $11,925$1,193
12% on $36,550$4,386
22% on $35,775$7,871
federal tax subtotal$13,449
SD state tax$0
taxable income
$84,250
marginal rate
22.0%
after tax
$86,551
Income tax in South Dakota
South Dakota has no state income tax on wages, investment income, or capital gains for tax year 2025, and it has never levied one. The state funds itself mainly through sales and use taxes (state rate 4.2%) plus excise taxes. There are no local income taxes.
Common questions
What is the South Dakota state income tax rate?
South Dakota has no state income tax on individuals — your only income tax is federal.
Does South Dakota tax capital gains?
South Dakota does not impose a state tax on capital gains.
How we calculate this
Federal brackets per our income-tax methodology, plus 2025 South Dakota state tax. Estimates only — not tax advice.
Estimates for general informational purposes only; not tax advice. South Dakota figures are simplified (credits, local taxes, and AGI adjustments vary) and should be verified with the state Department of Revenue.