South Dakota is one of a handful of states with no personal income tax and no corporate income tax, and it has a reputation for business-friendly government. Forming an LLC costs $150, and the annual report costs $55. The trade-off is a broad sales tax that covers many services, plus a special excise tax on construction contracts.
What a South Dakota LLC costs
Table of Contents
| Item | Cost | When |
|---|---|---|
| Articles of Organization | $150 | At formation |
| Annual report | $55 | During your anniversary month, each year |
| Sales tax license | No fee | Before your first taxable sale |
| Trade name registration (if using a DBA) | Small fee | When registering |
| Contractor’s excise tax registration (if applicable) | No fee | Before starting construction work |
Step 1: Choose your LLC name
The name must include "limited liability company", "limited company", "LLC", "L.L.C.", "LC" or "L.C." and be distinguishable from other names on file. Search the Secretary of State’s business database, then check federal trademarks, domains and social handles with our business name checklist.
To trade under another name, register a trade name with the Secretary of State.
Step 2: Appoint a registered agent
Every South Dakota LLC needs a registered agent with a physical South Dakota address. You can serve yourself, name another adult or use a commercial registered agent.
Step 3: File Articles of Organization online
File Articles of Organization with the South Dakota Secretary of State through its online business filing system and pay $150. You’ll include the LLC’s name, registered agent, principal office and management structure. Online filings are typically processed quickly.
Step 4: Create an operating agreement
South Dakota doesn’t require you to file an operating agreement, but every LLC should have one, covering ownership, management, profit sharing and what happens when members join or leave.
Step 5: Get an EIN and open a bank account
Apply for a free EIN from the IRS online, then open a business bank account using your filed Articles and EIN. See choosing a business bank account.
Step 6: Register for sales tax, which often covers services
South Dakota funds much of its government through sales tax, and unlike many states it taxes a wide range of services as well as goods. Many repair, maintenance, personal care, cleaning, landscaping and professional services are taxable. Register with the South Dakota Department of Revenue for a sales tax license before your first taxable sale, and check carefully whether your services are taxable. Cities add municipal sales taxes, and some also levy municipal gross receipts taxes on lodging, food and entertainment.
Step 7: Contractors: understand the contractor’s excise tax
South Dakota levies a contractor’s excise tax on the gross receipts of contracts to construct, repair or improve real property. If you’re a contractor, register for it with the Department of Revenue, and include it in your bids. It’s separate from sales tax, and many newcomers from other states don’t expect it.
Step 8: File your annual report each year
Every South Dakota LLC files an annual report with the Secretary of State during its anniversary month, starting the year after formation. The fee is $55 online. LLCs that don’t file can be administratively dissolved.
How a South Dakota LLC is taxed
South Dakota has no personal income tax and no corporate income tax, so the state doesn’t tax your LLC’s profits. Owners still pay federal income tax and self-employment tax. At the state and local level, the taxes most businesses deal with are sales tax, the contractor’s excise tax for construction businesses, and local taxes.
Hiring your first employee in South Dakota
Beyond the federal steps in our first employee guide, South Dakota employers generally:
- Register for unemployment insurance with the Department of Labor and Regulation.
- Carry workers’ compensation insurance, required for most employers.
- Report new hires to the state.
With no state income tax, there’s no state income tax withholding, which simplifies payroll.
Your South Dakota LLC compliance calendar
| Deadline | Filing | Paid to |
|---|---|---|
| Anniversary month, yearly | Annual report ($55) | Secretary of State |
| Monthly, bimonthly or semiannually | Sales tax returns | Department of Revenue |
| As assigned | Contractor’s excise tax returns, if applicable | Department of Revenue |
| Quarterly | Unemployment insurance reports, if you have employees | Department of Labor and Regulation |
Example: state costs for your first two years
| Year 1 | Year 2 | |
|---|---|---|
| Articles of Organization | $150 | — |
| Annual report | — | $55 |
| State total | $150 | $55 |
Sales and excise taxes depend on your revenue. Add trade name registration and any licenses. Use our startup cost calculator to plan.
Pricing services when sales tax applies
Because many South Dakota services are taxable, build sales tax into your quotes and invoices:
- Confirm taxability for each service you offer; the Department of Revenue publishes guidance by industry.
- Show sales tax separately on invoices so customers know what they’re paying.
- Charge the right local rate for where the service is delivered.
- Keep records of exempt sales, such as sales to exempt organizations, with the required certificates.
Our service pricing calculator helps you set a rate that covers costs and taxes.
South Dakota rules for common types of business
Contractors. There’s no general statewide contractor license, but electricians and plumbers are licensed by the state, and many cities license or register contractors. All construction contractors should check the contractor’s excise tax. See our home services industry profile.
Agriculture. Farm and ranch LLCs are common; agricultural sales and some farm inputs have special tax treatment.
Tourism. Black Hills and Sturgis-area businesses face strong seasonal peaks and local tourism taxes.
Food businesses. Restaurants and food trucks are licensed by the state health department. South Dakota allows some home-processed foods to be sold directly to consumers. See our cottage food business guide.
Running a South Dakota LLC from home or remotely
Many South Dakota LLCs are home-based or run by remote professionals and online sellers. A few points apply:
- Check city zoning and home occupation rules before seeing customers or storing inventory at home.
- Online sellers collect South Dakota sales tax on taxable sales delivered in the state, and may need to collect in other states once they pass those states’ thresholds. South Dakota’s own law was at the center of the 2018 Supreme Court case that allowed states to require remote sellers to collect sales tax.
- Remote professional services may still be taxable if the customer receives them in South Dakota; check the Department of Revenue’s guidance.
- Use a commercial registered agent if you’d rather keep your home address out of public records.
Keeping your LLC in good standing
With only one short annual report, staying compliant is simple if you build a routine: set a reminder for the start of your anniversary month, keep your registered agent and addresses current, and file sales tax returns on time even when you owe nothing for the period. Missing returns can bring penalties and estimated assessments.
South Dakota compared with nearby states
| State | Filing fee | Yearly state report | Income tax |
|---|---|---|---|
| South Dakota | $150 | $55 | None |
| North Dakota | $135 | $50 | Low rates |
| Wyoming | $100 | $60 minimum | None |
| Minnesota | $155 online | Free renewal | Graduated |
| Iowa | $50 | $30 every two years | Flat 3.8% |
See our North Dakota, Wyoming and Minnesota guides.
Mistakes to avoid
- Assuming services aren’t taxable. Many are in South Dakota.
- Contractors forgetting the contractor’s excise tax in their bids.
- Missing the anniversary-month annual report.
- Forming in South Dakota while operating elsewhere, expecting to avoid your home state’s income tax; states tax business done within their borders.
Frequently asked questions
Does South Dakota have an income tax? No, neither personal nor corporate.
When is my first annual report due? During your anniversary month in the year after formation.
Can I be my own registered agent? Yes, with a physical South Dakota address where you’re available during business hours.
Is my LLC’s information public? Your LLC’s name, registered agent and principal office appear in the Secretary of State’s records.
What if my LLC is dissolved for a missed report? South Dakota generally allows reinstatement by filing the missing reports and paying fees, but your LLC loses good standing in the meantime.
Next steps
Read the Start a Business A–Z guide, see how to price your product or service, and plan with the break-even calculator.
This guide is general information, not legal or tax advice. Fees and taxes change; check the South Dakota Secretary of State and Department of Revenue before you file.
Sources
- LLC University, LLC annual fees by state (2026)
- LLC University, How much does an LLC cost by state (2026)
- South Dakota Secretary of State, Business Services
- South Dakota Department of Revenue
Last reviewed October 20, 2026. Startup costs are estimates; check local prices, licensing and tax rules before you commit money.
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