How to Form an LLC in South Dakota
A clean South Dakota registered agent setup for $99 per year. You get the office address on file, scanned legal mail, and compliance reminders ahead of state deadlines.
Getting a South Dakota LLC up and running involves one main paperwork moment, a continuing agent requirement, and predictable annual housekeeping. Plan on $150 for the state's portion, around a handful of business days for the state to process it, and a modest annual rhythm after that. Below is the full process, the actual cost breakdown, and how our service fits in.
Form Your South Dakota LLC — $199
Our team assembles the Articles and lodges them with South Dakota Secretary of State for $199. Approval comes back in about a handful of business days.
Form Your South Dakota LLC — $199
What an LLC Does for You in South Dakota
LLCs are the workhorse small-business entity — they shield the owner's personal-side assets and pass income straight to the owner's tax return. Across South Dakota, the LLC is popular with consultants, e-commerce operators, real estate investors, and independent contractors thanks to its low formality and clear liability shield.
South Dakota LLC Pricing
| Item | Cost |
|---|---|
| Our LLC formation service | $199 one-time |
| State filing fee (South Dakota Secretary of State) | $150 one-time |
| Registered agent (required for every South Dakota LLC) | $99/year |
| State annual report fee | $55/year |
Filing service: $199 to us. State fee: paid directly to South Dakota Secretary of State. Statutory agent: $99/year, separate billing.
How South Dakota LLC Formation Works
1. Name Your South Dakota LLC
Your chosen LLC name in South Dakota needs an LLC suffix and needs to be clearly different from anything already on file at the state. Use South Dakota Secretary of State's online business entity search to validate availability. It's a free check that saves time later.
Names that imply your business is a bank, insurance company, trust company, or state agency get rejected unless you have separate authorization. Skip those words.
2. Designate a Registered Agent
South Dakota doesn't let LLCs operate without a statutory agent — somebody with an in-state street address who is reliably available across business hours to take legal mail. The agent's information lives on the public-record entry at South Dakota Secretary of State and remains there while the LLC exists.
Our $99/year plan covers the agent role in South Dakota — we're the address shown to the public; yours stays out of sight.
3. File Your Formation Document at South Dakota Secretary of State
This is the filing that creates the entity: file the Articles of Organization with South Dakota Secretary of State alongside the $150 fee. The filing covers the LLC name, the primary business address, the agent's details (name and address), the management framework (member-managed or manager-managed), and organizer names.
South Dakota Secretary of State accepts filings online at the South Dakota business filings portal — online is typically faster than paper.
Standard processing takes about a handful of business days. An expedited option is often available at extra cost.
4. Draft an Operating Agreement
Operating agreements aren't filed in South Dakota, yet skipping one creates real problems with banks, members, and any dispute that comes up. Standard contents include ownership stakes, distribution priorities, management arrangement, voting requirements, and exit/buyout rules. Without a written agreement, South Dakota's default LLC rules apply — and those rules are generic, not tailored to your situation.
5. Pull an EIN from the IRS
The federal EIN acts as the IRS-issued tax ID for the LLC. Banks won't open a business account without it; neither will payroll or federal taxes work without it. Visit IRS.gov and apply at no cost. The online form takes ten or so minutes; the EIN issues at the end.
Paid EIN services aren't needed — EINs come free from the IRS in a quick online process.
6. Stay Compliant After Formation
After South Dakota Secretary of State approves your formation, the maintenance work begins:
- Continuously hold an agent on file connected to a in-state street address without interruption
- File South Dakota's annual report when it's due each year
- Keep a hard separation between business records and personal records (distinct bank accounts and bookkeeping)
- Meet the federal and state tax-related filings without missing deadlines
Falling behind on these triggers administrative dissolution by South Dakota Secretary of State — and an administratively dissolved LLC offers no liability protection.
Let us file? $199 once, we handle preparation and submission for the South Dakota LLC.
Start My South Dakota LLC — $199
The South Dakota Registered Agent Rule
Every South Dakota LLC needs a registered agent. There's no exception, no exemption, and no way to operate without one. The agent's job is to:
- Preserve a verifiable South Dakota address (a PO box alone isn't enough)
- Be present throughout the standard business day to receive legal mail
- Deliver everything that arrives — lawsuits, tax notices, state correspondence promptly enough to maintain response windows open
Some LLC owners list their home address as agent and later regret it. That address shows up in South Dakota Secretary of State's public database and stays there.
Our agent product in South Dakota is $99 a year. Our office handles the public-record exposure so yours doesn't get any.
Common South Dakota LLC Questions
How much does it cost to form an LLC in South Dakota?
South Dakota Secretary of State charges $150 for the formation filing. That sits above average for state filing fees. The annual report adds $55/year on top of formation.
How long does it take to form an LLC in South Dakota?
The state generally returns approval inside a handful of business days.
Does South Dakota require an annual report?
Yes. The annual filing fee is $55/year.
Do I need a registered agent for my South Dakota LLC?
Yes, the agent requirement applies to every South Dakota LLC: a registered agent at a South Dakota location. The requirement begins at formation and lasts while the LLC exists.
Can I form an LLC in South Dakota if I live in another state?
Yes. South Dakota still requires a registered agent; our $99/year service handles that part. South Dakota doesn't restrict LLC ownership to residents.
Start Your South Dakota LLC the Right Way
DIY filing remains an option through South Dakota Secretary of State via the South Dakota business filings portal. The registered agent rule still applies — the state collects $150.
Our agent plan can be listed on your formation paperwork from day one. At At $99 annually, covers a South Dakota agent address, same-day mail forwarding, and proactive deadline reminders.
Open Your South Dakota LLC — $199
Looking only for the agent? Our stand-alone agent product runs $99 a year.
Got other questions about South Dakota LLCs or how the agent plan works? See our FAQ or contact us across business hours.
Ready to get started?
Begin coverage today — the annual rate funds office address, scanning, and reminders. No extras tacked on.