South Dakota Income Tax Brackets — 2026

Find your tax bracket based on income and filing status. Compare federal and state tax rates side by side.

Quick South Dakota Tax Estimate

Based on South Dakota's tax rates for 2026. Enter your details for a personalized calculation.

State Tax on $80K Profit
$0
SE Tax
$11,303.64
Effective Rate
20.2%
Marginal Rate
12%
Full South Dakota Tax Calculator →

South Dakota Tax Information

State Income TaxNone — no state income tax!
Sales Tax0%
LLC Filing Fee$0
Annual Report Fee$None
Standard DeductionN/A

South Dakota has no state income tax. Self-employed only pay federal self-employment tax.

South Dakota Quarterly Tax Deadlines

Q1
Apr 15
Q2
Jun 16
Q3
Sep 15
Q4
Jan 15

Frequently Asked Questions

What are the 2026 tax brackets for South Dakota?
Federal brackets range from 10% to 37%. South Dakota tax rates are shown above on this page. Compare your marginal rate to understand how each additional dollar of income is taxed.
How does South Dakota income tax compare to other states?
Nine states (AK, FL, NV, NH, SD, TN, TX, WA, WY) have no income tax. South Dakota rates are shown above. Use our state comparison tool to compare tax burdens across states.
What is the standard deduction in South Dakota?
The federal standard deduction for 2026 is $16,100 (single) or $32,200 (married joint). South Dakota may have its own standard deduction — check the details on this page.
Do I pay South Dakota tax if I work remotely for an out-of-state company?
Generally, you pay tax in the state where you physically work. If you work remotely from South Dakota, you owe South Dakota income tax on that income. Some states have reciprocity agreements.
What's my marginal tax rate in South Dakota?
Your marginal rate is the tax rate on your last dollar of income. For 2026, federal rates are 10%, 12%, 22%, 24%, 32%, 35%, or 37%. Combined with South Dakota rates, use our calculator to find your exact marginal rate.