How to Start an LLC in South Dakota (2026)
To form an LLC in South Dakota, you send Articles of Organization to the state. It goes to the Secretary of State's Business Services Division. The filing fee is $150 online, or $165 if you mail it in.
File online and the state processes it right away. These steps cover forming a brand-new domestic LLC in South Dakota. An LLC that already exists in another state and wants to operate here too files a Certificate of Authority instead, covered in the FAQ below.
Quick Summary
- Check your LLC name before you file. A name too close to one already on file will stop your filing cold.
- Your registered agent can be a member, a manager or a hired service. Their South Dakota address becomes part of the public record.
- Mark your Annual Report deadline on the calendar. Skip it too many times and the state shuts down your LLC.
South Dakota LLC Requirements at a Glance
South Dakota's exact filing document, agency, fee and deadlines are below. Check every row before you take the next filing step.
| LLC requirement | State-specific answer |
|---|---|
| Filing document | Articles of Organization, Domestic Limited Liability Company (SDCL 47-34A-203, 212). Form PDF |
| Filing authority | South Dakota Secretary of State, Business Services Division, 500 E Capitol Ave, Pierre, SD 57501. Business Services |
| State filing fee | $150 filed electronically online. $165 by paper (includes the $15 paper filing fee) |
| Online filing | Yes, via the Secretary of State's Business Services Online portal ("Start a New Business") |
| Processing time | Online: processed immediately. Mail: 1-3 business days on average |
| Registered agent | Noncommercial agent (individual with an SD street address) or Commercial Registered Agent by CRA# (SDCL 59-11-6) |
| Annual report | $55 online / $70 by mail, due every year on the 1st day of the LLC's anniversary month (SDCL 47-34A-211) |
| Publication required? | No publication requirement. Not listed on the SOS Business Forms menu, Business FAQ or the Filing Fees schedule |
| State business tax | None (pass-through only); sales tax license required if selling taxable goods or services |
| Last verified | September 4, 2026 |
How to Start an LLC in South Dakota: 5 Steps
Forming a South Dakota LLC comes down to five steps, from picking a compliant name to getting a federal tax ID. These steps follow the same order as our how to start an LLC guide, adapted to South Dakota's own forms and fees.
Step 1: Choose and check your LLC name
Your name must include "Limited Liability Company," "Limited Company," or the abbreviation "LLC," "L.L.C.," "L.C." or "LC" (SDCL 47-34A-105, 47-1A-401) [1].
Your name also has to look and sound different from every name already on file. Run it through the Secretary of State's Business Name Availability Search before you file.
Or check it against our how to look up an LLC in South Dakota guide before you commit to it.
A name with the word "Trust" needs sign off from the Division of Banking. That means you can't file it online, only on paper. To lock in a name before your paperwork is ready, reserve it for $25. It holds for 120 days.
Step 2: Appoint a registered agent
Every South Dakota LLC needs a registered agent on file. That can be a noncommercial agent. It just means a member, a manager or any person with a real street address in the state.
Or it can be a Commercial Registered Agent, identified by a CRA number. Naming yourself or a co-owner costs nothing, though their address becomes part of the public record.
If you'd rather not put a home or office address on a public filing, a registered agent service in South Dakota can stand in for you instead.
Step 3: File the Articles of Organization with the Secretary of State
File your Articles of Organization with the Secretary of State and pay the required filing fee, detailed in full below.
Every field the form asks for, how to pay and where to send it come next. Some founders skip the paperwork entirely and let a South Dakota LLC formation service handle the filing instead.
Step 4: Create an operating agreement
You don't have to have an operating agreement in South Dakota. State law lets members adopt one that "need not be in writing" [2]. Without one, Chapter 47-34A's default rules apply. They decide how members, managers and the company work together.
Step 5: Get an EIN
Once South Dakota approves your Articles of Organization, apply for a free EIN from the IRS online. It issues the number immediately once approved. You'll need it before registering for South Dakota sales tax with the Department of Revenue.
Filing the Articles of Organization in South Dakota: What to Expect
Filing the Articles of Organization means working through the form field by field and fee by fee until South Dakota approves it.
1. What the form asks for
The Articles of Organization ask for your company name and an optional statement of purpose. They also want your initial office address and your registered agent's name and address. You'll also list the name and address of each organizer, up to four.
State the LLC's duration if it isn't meant to run forever, and check a box for member-managed or manager-managed. List manager names and addresses if you checked manager-managed.
Beneficial owner information and any extra provisions are optional. At least one organizer has to sign the form before you submit it.
2. Fee and payment methods
Pay $150 if you file online. Mail a paper form for $165 instead, with a check made out to "Secretary of State." Online, the state accepts Visa, MasterCard, Discover and American Express.
3. Processing times
Online filings are processed right away. Mailed filings average 1 to 3 business days. If that timeline matters to your launch plans, our guide to how long it takes to form an LLC in South Dakota breaks down what can slow a filing down.
| Filing method | Processing time |
|---|---|
| Online | Processed immediately (same business day) |
| 1-3 business days on average | |
| In person | Not published. The FAQ states only online and mail turnaround figures |
| Expedited | Not published as a day count. The state defines expedited service only as "completion sooner than the normal course of business" for a $50 fee |
| Current state estimate | Not published. No backlog or current-turnaround notice appears on the Business Services or Business Forms pages |
4. Where to file by mail or in person
Send paper filings, or drop them off, at the Secretary of State Office, 500 E Capitol Ave, Pierre, SD 57501. You can call the office at (605) 773-4845 or email corpinfo@state.sd.us with questions.
5. Common reasons filings are rejected
The Secretary of State's office doesn't publish a list of rejection reasons for Articles of Organization. Staff simply check each filing for completeness, not accuracy.
An incomplete form or a name that isn't distinguishable on record are the likeliest ways a filing gets bounced back.
6. What you receive when it's approved
File online and you can download a filed confirmation once the state processes your Articles. Its Annual Report and Certificate of Good Standing tools work the same way.
File on paper instead, and the office will mail your documents back to the address you gave on the form.
What It Costs to Start an LLC in South Dakota
Filing the Articles of Organization is the one cost you can't avoid. Everything else on this list is optional. Skip any fee you don't actually need.
| Cost item | Amount |
|---|---|
| State filing fee | $150 filed electronically online. $165 by paper (includes the $15 paper filing fee) |
| Name reservation | $25, reserves the name for 120 days (SDCL 47-34A-106) |
| Registered agent | $0 if a member, manager or officer serves (SDCL 59-11-6); no published price for a Commercial Registered Agent |
| Certified copy | $15 plus $2 per page |
| Expedited filing | $50 flat expedited-service fee (defined as completion sooner than the normal course of business). Online Articles filings are already processed immediately |
| Annual report | $55 online / $70 by mail, due every year on the 1st day of the LLC's anniversary month (SDCL 47-34A-211) |
| Other mandatory state fees | None beyond the Articles filing fee and Annual Report |
Name reservation, certified copies and expedited service are all optional add-ons you can skip. You pick them only if you actually need them.
Registered agent services and formation packages cost more than the state's own fees. See our guide to what an LLC costs in South Dakota for that full breakdown.
South Dakota-Specific Rules That Change the Process
1. Naming and publication
South Dakota doesn't require you to publish a notice of formation anywhere. Beyond "Trust," restricted words that need sign off are rare.
Still, check the Secretary of State's Business FAQ before you file if your name touches on banking, insurance or a government-sounding term.
2. Member vs. manager disclosure
Organizer names and addresses go on the Articles. Manager names and addresses go on the Annual Report if the LLC is manager-managed. Both become public record.
Naming a member by name isn't required unless they're also acting as a manager, and naming a beneficial owner is entirely optional.
3. State taxes for LLCs
South Dakota charges no corporate income tax or franchise tax on LLCs. Profits pass straight through to the owners' own tax returns instead.
Selling taxable goods or services still means registering for a sales tax license with the South Dakota Department of Revenue. Beyond that, the state has no general business license to worry about.
4. Foreign LLC registration
An LLC formed in another state files a Certificate of Authority to register here. It costs $750 online or $765 by mail. You file it through the same state office and portal used for domestic filings.
5. Getting reinstated after dissolution
The state can shut down your LLC for missing an Annual Report, letting your registered agent lapse, or a bounced payment.
Getting back in good standing costs $150 plus every fee and report you owe. First file the late reports. Then get a Tax Clearance Certificate from the Department of Revenue. The Secretary of State won't process your case without it.
If your agent situation changes before it comes to that, updating your registered agent in South Dakota with the state takes care of it.
What to Do After Your South Dakota LLC Is Approved
Getting approved is the milestone, but a few tasks still turn that paperwork into a working, legal business. Work through the list below once your LLC is on the books.
- Banking: Take your filed Articles and EIN to the bank to open a business account. Mixing money together puts your personal assets at risk.
- Licenses and permits: Beyond the state-license point covered above, check with your city or county for local permits and any profession-specific license you need.
- Tax accounts: The Department of Revenue handles state tax registration. The rules section above covers who needs to register.
- Insurance: Line up business insurance, including workers' compensation once you take on employees, to protect what you've built.
- Accounting: Track income and expenses from day one, even as a single-member LLC taxed as a sole proprietorship by default.
- Ongoing compliance: Keep your registered agent current and file your Annual Report every year without fail.
If you ever wind the business down, our guide to dissolving an LLC in South Dakota covers that separate filing.
| Compliance item | Deadline, fee and department |
|---|---|
| Initial report | None required. The Business FAQ's list of required filings names only the Annual Report. South Dakota has no separate initial report |
| Annual or biennial report | $55 online / $70 mail, due yearly on the 1st of the anniversary month (SDCL 47-34A-211) |
| State tax registration | Sales tax license with SD Dept. of Revenue if selling taxable goods or services; no income or franchise tax account |
| Renewal deadline | Not applicable. South Dakota has no general state business license requiring renewal |
| Late fee | $55 late fee; non-filing after 2 months risks administrative dissolution (SDCL 47-34A-809) |
| Responsible state department | Secretary of State, Business Services Division (filings). Department of Revenue (tax registration) |
FAQs
What Happens If a South Dakota LLC Name Includes the Word Trust?
If your South Dakota LLC name includes the word Trust, the Secretary of State won't accept it without extra sign-off. The naming rules above cover the details.
Does South Dakota Charge a Fee to Register a Foreign LLC?
Yes, South Dakota charges a fee to register a foreign LLC as a Certificate of Authority with the Secretary of State. The amount is detailed above.
How Do I Reinstate a South Dakota LLC After Administrative Dissolution?
You reinstate a South Dakota LLC by filing every late Annual Report and clearing what you owe with the Secretary of State. The rules section above covers each step.
Can I Use My Home Address for a South Dakota LLC?
Yes, you can use your home address for a South Dakota LLC, either as your initial office address or your registered agent's address. Either one becomes part of the public record once you file.
Is an Annual Report Required for a South Dakota LLC?
Yes, an Annual Report is required for every South Dakota LLC, due each year on the 1st day of the anniversary month it was formed. It costs $55 online or $70 by mail.
Does South Dakota Require LLCs to Publish a Notice?
No, South Dakota does not require LLCs to publish a formation notice. The rules section above covers what does apply instead.
References:
- https://sdlegislature.gov/Statutes/47-34A
- https://sdlegislature.gov/api/Statutes/47-34A-103.html
I recently started my LLC in South Dakota, and this guide would’ve been a lifesaver. The breakdown of filing fees and naming restrictions is so helpful—I made a mistake initially by choosing a name with restricted words.