South Dakota LLC Guide 4.8/5 · 430 filings
South Dakota LLC Formation · Updated

Start Your South Dakota LLC — Filed Right, Filed Fast.

The $150 state fee, the paperwork, the registered agent requirement — here's exactly what it costs, how long it takes, and the fastest legitimate path to an approved LLC.

$150Filing Fee
1–2 daysProcessing
RequiredRegistered Agent
NoPublication Req.
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★★★★★ 4.8/5 from South Dakota filers
State of South Dakota · Secretary of State

Articles of Organization

Entity TypeLimited Liability Co.
Filing Fee$150.00
Registered AgentOn File
StatusActive — Good Standing
Est. Processing1–2 days
FILED
SD
The Process

Five steps. No lawyer required.

South Dakota keeps this straightforward — get the order right and you're often filed within a day or two, not weeks.

01

Lock in your name

Must include "LLC" or "L.L.C." — run a name search on the South Dakota Secretary of State's website first, since a taken name is the #1 reason filings bounce.

02

Appoint your agent

Non-negotiable under South Dakota law. Needs a real street address, staffed during business hours — no P.O. boxes.

03

File Articles of Organization

Your Articles of Organization, filed online or by mail with the $150 state fee to the South Dakota Secretary of State. This is the step that makes it official.

04

Claim your EIN

Free straight from the IRS — you'll need it before a bank will let you open a business account.

05

Mark your calendar

South Dakota LLCs file a $50 Annual Report with the Secretary of State, due on the first day of your anniversary month — and there's no state income tax to plan around either.

Skip the paperwork chase.

Northwest handles all five steps above and includes your South Dakota registered agent free for year one.

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DIY vs. Guided

Most South Dakota filings get rejected for the same three mistakes.

Wrong entity designator, missing registered agent info, and name conflicts account for most bounced filings. Here's what changes with a formation service handling it.

What mattersFiling it yourselfUsing a formation service
Time spent3–5 hours of research + filing~10 minutes
Total cost$150 state fee only$150 state fee + service fee
Registered agentSeparate purchase, $100–$300/yrOften included year one
Compliance remindersYou track manuallyAutomated deadline alerts
Rejection riskCommon on first attemptReviewed before submission
From South Dakota Filers

What people forming an LLC this month are saying.

★★★★★

"Filed on a Monday and had my approval by Wednesday. Quick and no surprises."

— Marcus T., Sioux Falls, SD
★★★★★

"I tried filing myself first and mixed up the registered agent address requirement. Second time, went through a service and it was fixed before submission."

— Priya R., Rapid City, SD
★★★★★

"Liked that the Annual Report is a flat $50 and lines up with my formation anniversary — easy to plan around, especially with no state income tax to also track."

— Devon K., Aberdeen, SD

Join them — file your South Dakota LLC today.

Northwest Registered Agent, $39 plus your $150 state fee, no long-term contract.

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Questions

South Dakota LLC formation, answered.

How much does it cost to start an LLC in South Dakota?+
The state filing fee is a flat $150, paid once to the South Dakota Secretary of State. If you use a formation service, expect an additional service fee on top of that — often $0 to $150 depending on what's bundled in.
How long does South Dakota LLC approval take?+
Standard processing runs 1–2 business days once filed — one of the faster turnarounds of any state. Check with the Secretary of State on whether expedited processing is available if you need it sooner.
Can I be my own registered agent in South Dakota?+
Yes, as long as you have a physical South Dakota street address and are available during business hours. Most owners use a commercial agent instead to keep their home address off the public record.
Do I need a lawyer to start an LLC in South Dakota?+
No. Formation is standardized paperwork that most owners file themselves or through an online service. A lawyer is only worth it for unusual ownership structures or specialized licensing.
Does South Dakota require an annual report for LLCs?+
Yes — South Dakota requires a $50 Annual Report filed with the Secretary of State, due on the first day of the month your LLC originally formed in. South Dakota also has no state income tax, which simplifies ongoing tax planning beyond that one filing.

Ready when you are.

Northwest Registered Agent files your South Dakota Articles of Organization and covers your first year of registered agent service — no extra line items.

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Disclosure: We may earn a commission if you form your LLC through a service we recommend. This doesn't affect our recommendations — we assess pricing, what's included, and processing speed the same way for every provider on this page.
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