Form an LLC in South Dakota — Everything You Need to Know
A practical, no-nonsense guide to forming a limited liability company in South Dakota. We cover the actual requirements, real costs, and what nobody else tells you.
South Dakota LLC at a Glance
State Filing Fee
$150
Processing Time
5 business days
Annual Report Fee
$50/yr
Franchise/Annual Tax
None
State Income Tax
No
Member Disclosure
Public
South Dakota is Best For
South Dakota-Specific Requirements
- !Annual report due by the first day of the anniversary month
Requirements to Form an LLC in South Dakota
Forming an LLC in South Dakota requires a few key things. Here is what you actually need — no unnecessary legal jargon:
- 1A unique business name. Your LLC name must be distinguishable from other entities registered in South Dakota. It must include "LLC," "L.L.C.," or "Limited Liability Company."
- 2A registered agent. Someone with a physical address in South Dakota who can receive legal documents on behalf of your LLC. You can be your own agent if you have an address in the state, or you can use a service like Sedes.
- 3Articles of Organization. This is the formation document you file with the Secretary of State along with the $150 filing fee. It includes your LLC name, registered agent, management type, and purpose.
- 4An operating agreement. While not legally required in South Dakota, an operating agreement is essential. It defines how your LLC is managed, how profits are split, and what happens if things go sideways.
- 5An EIN (Employer Identification Number). Your LLC's tax ID from the IRS. Free to obtain. Required for opening a business bank account, hiring employees, and filing taxes.
How Much Does It Cost?
| Item | Cost | Frequency |
|---|---|---|
| State Filing Fee | $150 | One-time |
| Annual Report | $50/year | Annual |
| Registered Agent Service | $49/year | Annual (with Sedes) |
| EIN | $0 | One-time (free from IRS) |
| First Year Total | $249 | with Sedes RA |
| Annual Ongoing Cost | $99/year | with Sedes RA |
State fees are paid directly to South Dakota. Sedes's formation service starts at $0 + state fees.
How Long Does It Take?
Standard Processing
5 business days
State filing fee only ($150)
With Sedes
Same day preparation
We prepare and file within hours. State processing time still applies.
Pros & Cons of a South Dakota LLC
Advantages
- +No state income tax
- +Fast processing (5 business days)
- +Strong trust and asset protection laws
Disadvantages
- -Filing fee is above average ($150)
- -$50 annual report fee
- -Members are disclosed publicly
- -Small market and business ecosystem
What You Should Know About South Dakota LLCs
South Dakota is well-known for its favorable trust laws and asset protection, making it popular for dynasty trusts and holding entities.
Step-by-Step: How to Form an LLC in South Dakota
Choose your LLC name
Search the South Dakota Secretary of State business name database to make sure your desired name is available. Your name must include "LLC" or "Limited Liability Company" and must be distinguishable from existing entities.
Appoint a registered agent
Your registered agent must have a physical street address in South Dakota (no P.O. boxes). They receive legal documents and state correspondence on your behalf. Sedes includes registered agent service with all plans.
File your Articles of Organization
Submit your formation documents to the South Dakota Secretary of State along with the $150 filing fee. You can file online or by mail. With Sedes, we handle the filing for you.
Create an operating agreement
Draft an operating agreement that outlines ownership percentages, management structure, profit distribution, and what happens if a member leaves. Even single-member LLCs should have one — it reinforces your liability protection.
Get your EIN from the IRS
Apply for an Employer Identification Number (EIN) on the IRS website. It is free and takes about 5 minutes online. You need this to open a business bank account and file taxes.
Open a business bank account
This is critical. Keeping your personal and business finances separate is what makes your liability protection real. Without it, a court could 'pierce the corporate veil' and hold you personally liable.
Stay compliant
File your annual report ($50), pay any required taxes, and keep your registered agent current. Sedes's compliance calendar tracks all of this automatically.
South Dakota Secretary of State — Online Filing
File directly with the state or let Sedes handle it for you.
Frequently Asked Questions
How much does it cost to form an LLC in South Dakota?
The state filing fee is $150. You will also pay $50/year for the annual report. Your estimated first-year total is $200 (state fees only). With Sedes, the formation service itself starts at $0 — you only pay the state fees.
How long does it take to get an LLC in South Dakota?
Standard processing takes approximately 5 business days after filing. With Sedes, we prepare and submit your filing within hours, but the state processing time still applies.
Do I need a lawyer to form an LLC in South Dakota?
No. Millions of LLCs are formed every year without a lawyer. For straightforward single-member or partnership LLCs, a formation service like Sedes can handle everything. If you have complex ownership structures, significant assets to protect, or need specific tax planning, consulting a business attorney is a good idea.
Can I form a South Dakota LLC if I live in another state?
Yes. Anyone can form an LLC in South Dakota regardless of where they live. However, if you plan to do business in your home state, you will need to register your South Dakota LLC as a foreign LLC there, which means paying fees in both states. For most people, forming in their home state is simpler and cheaper.
What is the difference between member-managed and manager-managed?
In a member-managed LLC, all owners (members) participate in running the business and making decisions. In a manager-managed LLC, one or more designated managers handle operations while other members are passive investors. Most small LLCs choose member-managed.
Do I need an operating agreement?
South Dakota does not legally require one, but you absolutely should have one. An operating agreement defines how your LLC works, protects your personal liability, and prevents disputes. Banks often require it to open a business account.
Not sure if South Dakota is the right state for your LLC?
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