Key Tax Facts: South Dakota
- No state income tax on personal income
- No corporate income tax and no personal property tax
- Trust and LLC laws make it popular for wealth structuring
- No state estate or inheritance tax
Estimate Your 2026 Federal Income Tax
South Dakota State Income Tax Overview
South Dakota has no state income tax on wages, salaries, retirement income, or investment income, and it also has no corporate income tax - one reason it consistently ranks among the most tax-friendly states in the country. The state funds its government mainly through a modest sales tax and revenue tied to tourism, agriculture, and a large financial-services sector. South Dakota is especially known for its trust-friendly laws: favorable rules on trust duration, privacy, and asset protection have made it a national hub for dynasty trusts, drawing wealth-management business from across the country. For everyday residents, the combined state and average local sales tax sits around 6%, lower than in many other no-income-tax states, and property taxes are moderate. South Dakota has no state estate tax and no inheritance tax, which - combined with the absence of an income tax - makes it attractive to both retirees and high-net-worth families focused on wealth transfer. To put the savings in perspective, a resident earning $100,000 pays $0 in state income tax, compared with several thousand dollars in a typical income-tax state, and there is no state tax on Social Security, pensions, or retirement-account withdrawals. Federal income tax still applies to all taxable income using the same nationwide brackets and rules.
What Is Different About South Dakota for Taxpayers
Deductions and exemptions
South Dakota has no personal income tax, so no state deductions, exemptions, or wage-earner returns exist.
Credits worth knowing
There are no personal credits. The state runs on a 4.2% sales tax plus local additions, taxes on tourism and contractors, and a bank franchise tax; it has no corporate income tax either.
Retirement, capital gains, and other income
Pensions, Social Security, IRA distributions, dividends, and capital gains are untaxed by the state. South Dakota's lack of income tax and favorable trust laws make it a common domicile for retirees and trusts.
Rules summarized from the South Dakota Department of Revenue guidance for tax year 2026. Amounts that index annually are described in general terms; confirm the current figure on the official form instructions.
South Dakota Has No State Income Tax
South Dakota has no state income tax, making it one of the most tax-friendly states in the country.
As a South Dakota resident, your state income tax is $0. The calculator above estimates your federal income tax, which applies to all U.S. residents regardless of state.
Where South Dakota Stands Among the 50 States
South Dakota is one of 9 states with no tax on wage income (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming). Of the other 41 states, 14 use a flat rate and 27 use graduated brackets, with a median top rate of 5.2%.
On sales tax the picture is similar: South Dakota's combined state and average local rate of 6.11% ranks #36 of 50, against a national median of 7.00%. South Dakota manages to keep both income and sales taxes low, which usually means heavier reliance on property tax, severance tax, or tourism revenue.
South Dakota State Tax at Five Income Levels (2026, single filer)
| Taxable income | South Dakota tax | Effective rate | Marginal rate |
|---|---|---|---|
| $40,000 | $0 | 0.00% | 0% |
| $65,000 | $0 | 0.00% | 0% |
| $100,000 | $0 | 0.00% | 0% |
| $150,000 | $0 | 0.00% | 0% |
| $250,000 | $0 | 0.00% | 0% |
Brackets applied directly to the taxable-income figure shown, before South Dakota-specific deductions, exemptions, or credits. Federal tax is separate and comes on top of every row.
South Dakota vs. Its Neighbors on $75,000 of Taxable Income
A South Dakota resident with $75,000 of taxable income pays about $0 in state income tax. Of South Dakota's 6 neighboring states, 0 would tax that income less and 5 would tax it more -- South Dakota is the cheapest state in its region on this measure.
Frequently Asked Questions -- South Dakota Income Tax
Does South Dakota have a state income tax?
No. South Dakota does not impose a broad-based state income tax on wages, salaries, or most personal income. South Dakota has no state income tax, making it one of the most tax-friendly states in the country.
Do I still owe federal income tax as a South Dakota resident?
Yes. Federal income tax applies to all U.S. residents regardless of state. South Dakota residents pay the same federal tax brackets as everyone else -- only your state income tax is $0.
What taxes do South Dakota residents pay instead of income tax?
South Dakota has no state income tax on wages, salaries, retirement income, or investment income, and it also has no corporate income tax - one reason it consistently ranks among the most tax-friendly states in the country. The state funds its government mainly through a modest sales tax and revenue tied to tourism, agriculture, and a large financi...
How much does living in South Dakota save compared with neighboring states?
On $75,000 of taxable income a South Dakota resident pays $0 in state income tax, while Wyoming would collect $0, North Dakota would collect $517, Iowa would collect $2,850, Nebraska would collect $3,422, Montana would collect $4,172, Minnesota would collect $4,628. Sales tax in South Dakota is 6.11%, ranked #36 of 50.
Do I need to file a South Dakota state tax return?
South Dakota does not require a personal income tax return for most residents. You must still file a federal return with the IRS. Check the South Dakota Department of Revenue for any state-specific obligations that may apply.
What is the sales tax rate in South Dakota?
South Dakota's combined state and average local sales tax rate is 6.11%. States without an income tax typically lean more on sales, excise, or property taxes to fund government services -- use our sales tax calculator to see how that adds up.
Understanding Your South Dakota Tax Estimate
Your results combine two separate bills: federal tax owed to the IRS, and South Dakota state tax -- which for residents here is $0. South Dakota has no state filing requirement for personal income; you only file the federal return. For the mechanics of how bracket math actually works -- why your effective rate is almost always lower than your top bracket -- see our marginal vs. effective tax rate guide.
Combined Sales + Income Tax Picture
South Dakota's combined state-plus-average-local sales tax rate is 6.11%. States without an income tax typically lean more heavily on sales, excise, or property taxes to fund government services -- worth factoring in alongside the $0 income tax figure above. Use our sales tax calculator to see how that adds up on a purchase.
Disclaimer: Estimates for educational purposes only. State tax results are approximations based on published bracket data and do not account for all deductions, credits, exemptions, local taxes, or individual situations. Not tax, legal, or financial advice. Consult the South Dakota Department of Revenue or a qualified tax professional for guidance specific to your situation.