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South Dakota Income Tax 2026 — No State Income Tax
South Dakota has no state income tax — $0 state tax regardless of income. Use the federal calculator below to estimate your federal tax, then see the combined take-home comparison.
Reviewed for accuracy June 2026 by Gary Sing
State tax type
No state tax
State tax at $75k
$0
Federal tax at $75k
$8,114
Combined eff. rate $75k
10.8%
Calculate for another state:
South Dakota income tax at common income levels — 2025
Single filer, 2025 federal standard deduction ($15,000). Federal tax uses 2025 IRS brackets.
| Income | South Dakota state tax | State eff. rate | Federal tax | Total tax | Total eff. rate |
|---|---|---|---|---|---|
| $50,000 | $0 | 0.0% | $3,962 | $3,962 | 7.9% |
| $75,000 | $0 | 0.0% | $8,114 | $8,114 | 10.8% |
| $100,000 | $0 | 0.0% | $13,614 | $13,614 | 13.6% |
Single filer. Federal tax computed on gross income minus $15,000 standard deduction using 2025 IRS brackets. State tax estimates are approximate — consult a tax professional for exact liability. Does not include FICA (Social Security + Medicare), local taxes, or deductions beyond the standard deduction.
South Dakota state income tax rate 2025
South Dakota: No state income tax
South Dakota has no state income tax. South Dakota funds state services primarily through sales taxes. It is a popular state of domicile for remote workers and retirees from high-tax states.
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South Dakota income tax — frequently asked questions
Does South Dakota have a state income tax?
No — South Dakota has no state income tax. Your state income tax liability in South Dakota is $0 regardless of income.
What is the South Dakota state income tax rate for 2025?
South Dakota has no state income tax — the rate is 0%.
How much South Dakota state income tax do I owe on $75,000?
$0 — South Dakota has no state income tax. Your total income tax on $75,000 is the federal tax only: approximately $8,114 (single filer, 2025 standard deduction).
What is the combined federal and South Dakota state income tax at $100,000?
At $100,000 gross income (single filer, 2025 standard deductions): federal income tax is approximately $13,614, South Dakota state income tax is $0, for a combined total of approximately $13,614 — an overall effective rate of 13.6%.
How does South Dakota's income tax compare to other states?
South Dakota is one of nine states with no state income tax, alongside Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Washington, and Wyoming. This provides a meaningful take-home pay advantage over most other states.