South Dakota is one of the most tax-friendly states for businesses. It has no corporate income tax, no personal income tax, no franchise tax for most businesses and no tax on business equipment or inventory. The state relies instead on a broad 4.2% sales tax that covers most services as well as goods, plus local sales taxes and property taxes on real estate.
This guide covers South Dakota's business taxes for 2026, with worked examples and comparisons with its six neighbors.
South Dakota business taxes at a glance
For most South Dakota businesses, the main state taxes are sales tax and property tax. C corporations and pass-through owners alike pay no state income tax. Customers pay 4.2% state sales tax plus up to 2% local tax, and many services are taxable, so service businesses often collect sales tax too. Construction contractors pay a 2% excise tax on gross receipts. LLCs pay $150 to form and $55 a year. Only banks pay an income-based tax. South Dakota consistently ranks among the top states in business tax climate rankings.
No income tax
South Dakota has never had a personal income tax and has no corporate income tax.
- C corporations pay no state tax on profit.
- LLC owners, partners and sole proprietors pay no state income tax.
- S corporation shareholders pay no state income tax.
- Capital gains are not taxed.
- Bank franchise tax: Banks and financial institutions pay a tax on net income at rates from 6% down to 0.25% as income rises.
Sales and use tax
| Component | Rate |
|---|---|
| State sales tax | 4.2% |
| Municipal sales tax | Up to 2% |
| Municipal gross receipts tax on lodging, meals and admissions | Up to 1% |
| Tourism tax on lodging and some visitor services | 1.5% |
| Average combined rate | About 6.11% |
- Broad base: South Dakota taxes most services, unlike most states. Legal, accounting, consulting and computer services are taxable. Exemptions include health care by licensed practitioners and education.
- Groceries are taxed at the full rate.
- Remote sellers with more than $100,000 of South Dakota sales must collect. The state's 2018 Supreme Court case, South Dakota v. Wayfair, established economic nexus nationwide.
Contractor's excise tax
| Item | Rate |
|---|---|
| Prime contractors on realty improvement projects | 2% of gross receipts |
| Utility facility contractors | Separate rates |
The contractor's excise tax applies to construction projects in addition to sales or use tax on materials. Contractors can include it in their bids.
Payroll and property taxes
- Unemployment insurance: Employers pay on the first $15,000 of each employee's wages, plus an investment fee.
- Property tax: Only real property is taxed. Business personal property, including equipment and inventory, is exempt. Commercial property rates are moderate.
- Workers' compensation: Provided through private insurers.
Forming a business in South Dakota: fees and ongoing costs
| Item | LLC | Corporation |
|---|---|---|
| Formation filing fee | $150 | $150 |
| Annual report | $55 | $55 |
| Franchise tax | None | None (banks only) |
| Registered agent | Required | Required |
Worked example: $500,000 of profit
| Step | Amount |
|---|---|
| Taxable income | $500,000 |
| South Dakota income tax | $0 |
| Federal tax at 21% on $500,000 | $105,000 |
| Total income tax | $105,000 (21%) |
For a single LLC owner with $150,000 or $75,000 of profit, South Dakota income tax is $0.
How South Dakota compares with its neighbors
South Dakota and Wyoming are the only states in the region with no income tax. The contrast with Minnesota is especially sharp, and Sioux Falls, near both the Minnesota and Iowa borders, has grown quickly partly as a result. South Dakota's sales tax applies to more services than its neighbors', which matters for service businesses.
Choosing an entity in South Dakota
Because there's no income tax, state taxes rarely affect entity choice in South Dakota.
- LLC: Simple and inexpensive at $55 a year.
- S corporation: Federal payroll tax savings with no state tax.
- C corporation: Only the 21% federal rate applies, making C corporations relatively attractive for businesses that retain earnings.
Who pays the most in South Dakota
South Dakota's tax burden falls mostly on consumers through the sales tax, which applies to groceries and most services, and on property owners. Low-income households pay a higher share of their income in tax than in most states because of the grocery tax. Construction contractors pay the 2% excise tax on top of sales tax. Profitable businesses and high-earning owners, by contrast, pay very little.
Doing business across South Dakota
Sioux Falls in the southeast is the state's largest city and business center, with major banking, health care and financial services employers. Its credit card industry dates to 1980, when South Dakota eliminated interest rate caps, attracting Citibank and others. Rapid City in the west is the gateway to the Black Hills and Mount Rushmore, with a large tourism economy subject to the additional tourism and municipal gross receipts taxes. South Dakota is also a leading trust jurisdiction, with laws that attract trust companies and family offices.
Tax planning tips for South Dakota businesses
Check whether your services are taxable. Many service businesses that wouldn't collect sales tax in other states must collect it in South Dakota. Review the Department of Revenue's guidance for your industry.
Collect municipal taxes correctly. Cities set their own rates, and the extra 1% gross receipts tax on lodging, meals and admissions applies in many cities. Use destination-based rates for deliveries.
Consider South Dakota for trusts and holding entities. Its trust laws and lack of income tax make it a popular location for trust companies, though running an operating business there requires actual presence.
South Dakota taxes by business type
Service businesses. Consultants, marketers, designers and repair businesses often must collect sales tax on their fees, which is unusual nationally. Factor it into pricing, since customers pay the tax on top of the fee.
Retailers and e-commerce. Retailers collect the 4.2% state rate plus the municipal rate where goods are delivered. Online sellers outside the state must collect once they pass the $100,000 sales threshold, a rule that came from South Dakota's own Supreme Court case.
Tourism and hospitality. Hotels, restaurants and attractions in the Black Hills and Rapid City collect the 4.2% state tax, the 1.5% tourism tax and municipal gross receipts taxes, so visitors often pay 8% or more.
Agriculture. Farm machinery and many agricultural inputs are exempt from sales tax, and agricultural land is assessed on productivity rather than market value.
Recent changes for 2025 and 2026
- State sales tax reduced to 4.2% in 2023.
- Property tax relief measures considered in recent sessions.
- No income tax maintained.
Is South Dakota a good state for business?
Advantages
- No corporate or personal income tax
- No tax on business equipment or inventory
- Low formation and annual fees
- Favorable banking and trust laws
Drawbacks
- Sales tax on most services and groceries
- 2% contractor's excise tax
- Small, rural labor market
- Distance from major markets
Compliance checklist
- File Articles of Organization or Incorporation with the Secretary of State.
- Register with the Department of Revenue for sales tax, contractor's excise tax and municipal taxes.
- Register with the Department of Labor and Regulation for unemployment insurance if you hire.
- File the annual report each year.
- File sales tax returns monthly or on another assigned schedule.
Compare South Dakota with its neighbors below or estimate your taxes in the United States calculator. See LLC taxes for more.