South Dakota LLC Formation

How to Start an LLC in South Dakota

South Dakota is one of the most business-friendly states in the US with no personal income tax and one of the fastest LLC approval processes in the country: filings are processed immediately upon online submission. Home to Sioux Falls' growing financial services and healthcare sectors, Rapid City's tourism economy, and a strong agricultural base, South Dakota offers a clean business environment with low ongoing costs. Brendat handles your Articles of Organization, EIN, registered agent, and all compliance.

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Step-by-step guide

How to Form an LLC in South Dakota

Six simple steps. $150 to form with immediate online approval. No income tax. No publication requirement. Brendat handles everything.

Choose a Name for Your South Dakota LLC

Your South Dakota LLC name must be unique among all businesses registered with the South Dakota Secretary of State and must include a required designator.

South Dakota Naming Rules:

Must include: "Limited Liability Company," "LLC," or "L.L.C."
Cannot use: Words implying a government agency (e.g., "FBI," "State Department")
Restricted words: "Bank," "Insurance," "University" require additional approval
Must be distinguishable: From all existing South Dakota business names in the SOS database

Name Reservation Available

You can reserve your South Dakota LLC name for 120 days with the SD SOS for $15. Brendat checks name availability before filing your Articles of Organization.

Appoint a South Dakota Registered Agent

Every South Dakota LLC must designate a registered agent with a physical South Dakota street address to receive legal documents and official state notices during regular business hours.

Who can be your registered agent?

Yourself: Must have a physical South Dakota address and be available during business hours
A trusted individual: Any South Dakota resident with a physical address
A professional service: Like Brendat: keeps your personal address off public records

Brendat provides registered agent service in South Dakota

Our South Dakota address is listed on your Articles of Organization. Included in Standard and Professional packages.

File Articles of Organization With the South Dakota Secretary of State

The Articles of Organization officially creates your South Dakota LLC. File it online via the SD SOS portal for immediate approval.

Method	Fee	Processing Time
Online via SD SOS portal	$150	Immediate ✅
By Mail	$150	4–6 weeks

Immediate processing: South Dakota is one of the fastest LLC states

South Dakota processes online LLC filings immediately: the same day you submit. No waiting days or weeks for approval.

No publication requirement in South Dakota

South Dakota does not require LLCs to publish a formation notice in any newspaper. Your LLC is fully formed as soon as the SOS approves your Articles of Organization.

Create an Operating Agreement

South Dakota does not legally require an operating agreement, but every South Dakota LLC should have one. It establishes ownership, profit sharing, and management rules while strengthening your liability protection.

Ownership structure: Each member's percentage and capital contribution
Profit distribution: How and when profits are divided
Management: Who makes decisions and how voting works
Member changes: Process for adding or removing members
Dissolution: Steps to close the LLC if needed

Included in Brendat Standard and Professional

Brendat provides a professionally drafted South Dakota operating agreement with your formation documents.

Get Your EIN (Employer Identification Number)

An EIN is your LLC's federal tax ID required to open a business bank account, hire employees, and file federal taxes.

US residents: Apply free online at IRS.gov: instant approval
Non-US residents: Apply by fax using IRS Form SS-4: 4-6 weeks
Brendat handles this: Included in Standard and Professional packages

File Your South Dakota Annual Report

South Dakota LLCs must file an annual report with the Secretary of State every year in their formation anniversary month to maintain good standing.

Annual report fee: $50/year
Due date: Your LLC's formation anniversary month every year
Filing: Online via SD SOS portal
Late penalty: $50 late fee + risk of administrative dissolution

Anniversary Month Deadline: $50 Late Fee if Missed

South Dakota uses your formation month as the annual report deadline. If you formed in April, your report is due every April. Brendat tracks your specific month and sends reminders so you never miss it.

Transparent pricing

How Much Does a South Dakota LLC Cost?

Full breakdown. No personal income tax makes South Dakota one of the best states for LLC owners keeping more of their business profits.

State Filing Fee

$150

One-time Articles of Organization fee paid to the South Dakota Secretary of State. Processed immediately online.

Annual Report Fee

$50/yr

Due in your formation anniversary month every year. $50 late fee if missed. Filed online via SD SOS portal.

Publication Cost

No newspaper publication required in South Dakota. No extra steps or costs after filing.

Personal Income Tax

None

South Dakota has no personal income tax. LLC pass-through income is not taxed at the state level.

Registered Agent

Included in Brendat Standard and Professional packages. Required for all South Dakota LLCs.

EIN (Federal Tax ID)

Free from the IRS. Included in Brendat Standard and Professional packages.

Total with Brendat Standard Plan

$349 + $150 state fee

$349 Brendat +$150 SD state fee + $50 annual report. No income tax. $50/year from year 2 onward.

Choose your plan

South Dakota LLC Formation Packages

All packages include accurate, state-specific filing. Standard and Professional include EIN, registered agent, and operating agreement.

Basic

Brendat service fee

+ $150 South Dakota state fee

Get Started Free

Articles of Organization filed
Name availability check
Email support
Digital copy of filed documents
Lifetime compliance alerts

Beginner

$149

Brendat service fee

+ $150 South Dakota state fee

Start for $149 →

Everything in Basic
EIN / Federal Tax ID
LLC Operating Agreement
Registered Agent (1 year)
Lifetime support
Priority processing
November 15 annual report reminders

Standard

$349

Brendat service fee

+ $150 South Dakota state fee

Get Standard

Everything in Beginner
Expedited filing (next business day)
Google Business Profile setup
Priority phone and email support
Dedicated account manager

Premium

$899

Brendat service fee

+ $150 South Dakota state fee

Launch faster with tax & web support

Launch My LLC Fast

Everything in Standard
Federal tax return filed
S-Corp Election filing (Form 2553)
Tax strategy consultation
Domain Name + Business Email
Basic multi-page business website

State Comparison

Is South Dakota the Right State for Your LLC?

South Dakota is best if you live or operate there. Here's how it compares to neighboring Great Plains states.

Feature	South Dakota	North Dakota	Wyoming	Minnesota
State Filing Fee	$150	$135	$100	$155
Annual Report Fee	$50/yr	$50/yr	$60/yr	Free
Publication Required	None	None	None	None
Personal Income Tax	None	1.1% flat	None	5.35%–9.85%
Online Processing	Immediate	3-5 days	3-5 days	3-5 days
Best For	SD businesses	ND businesses	Privacy + no tax	MN businesses

South Dakota: No income tax + immediate online processing

South Dakota combines two major advantages: zero personal income tax on LLC pass-through income and same-day LLC approval online. For South Dakota residents, this is one of the best state combinations in the US.

Why choose us

Why 10,000+ Entrepreneurs Choose Brendat

Fast Filing

Your home address stays off the public record. We list our South Dakota registered agent address on all your formation documents.

100% Accuracy Guarantee

Every filing is reviewed before submission. If the SD SOS rejects your documents due to our error, we fix it at no charge.

Anniversary Month Reminders

South Dakota annual reports are due in your formation anniversary month. Brendat tracks your specific month and sends reminders so you never miss it or the $50 late fee.

Privacy First

Your home address stays off the public record. We list our South Dakota registered agent address on all your formation documents.

Immediate Online Processing

South Dakota processes LLC filings immediately upon online submission. Brendat submits your filing within 1 business day of your order: so your LLC can be approved the same day we file.

Non-US Residents Welcome

No citizenship or residency required. We assist international entrepreneurs with the full process including EIN via IRS Form SS-4 and registered agent service.

Our reviews

What Our South Dakota LLC Customers Say

Jason R.

Sioux Falls, SD

"No income tax was the deciding factor. LLC was approved the same day Brendat filed: didn't expect it to be that fast."

Angela M.

Rapid City, SD

"Immediate processing is real: had my approval the same afternoon. EIN and operating agreement were sorted alongside it."

Marcus T.

Aberdeen, SD

"Anniversary month reminder came through on time. Easy to forget a deadline that depends on when you formed. Appreciated the heads up."

Common questions

South Dakota LLC — Frequently Asked Questions

Answers to the most common questions about forming and running an LLC in South Dakota.

Still have questions?

(303) 246-8693

How much does it cost to form an LLC in South Dakota?

The South Dakota state filing fee is $150. Brendat's service starts at $0 (Basic) or $150 (Standard). Total first-year cost with Standard including the annual report is $350. The annual report is $50/year due in your formation anniversary month. A $50 late fee applies if missed.

Does South Dakota have income tax for LLCs?

No. South Dakota has no personal income tax. For single-member LLCs and multi-member LLCs taxed as pass-throughs, income flows to members' personal returns with zero state income tax. This is one of South Dakota's biggest advantages for LLC owners.

How fast does South Dakota process LLC filings?

South Dakota processes LLC filings immediately upon online submission: the same day you file. This makes it one of the fastest LLC approval states in the US alongside Colorado, Indiana, Ohio, Utah, Virginia, and West Virginia. Brendat submits your filing within 1 business day of your order.

When is the South Dakota LLC annual report due?

South Dakota LLC annual reports are due in your formation anniversary month every year. The fee is $50/year. A $50 late fee applies if missed. Brendat tracks your specific formation month and sends reminders before your deadline each year.

Does South Dakota require newspaper publication for LLCs?

No. South Dakota has no newspaper publication requirement for LLCs. Your LLC is fully formed as soon as the Secretary of State approves your Articles of Organization online.

Can a non-US resident form a South Dakota LLC?

Yes. No US citizenship or residency is required to form a South Dakota LLC. Non-residents need a registered agent with a physical South Dakota address: Brendat provides this. For EIN, non-residents apply by fax using IRS Form SS-4. Brendat assists with the complete process.

Ready to Start Your South Dakota LLC?

$150 state fee, no income tax, immediate online processing. Brendat handles Articles of Organization, EIN, registered agent, and anniversary month compliance reminders.

Form My South Dakota LLC

$349 + $150 SD fee. No income tax. Immediate approval. 100% accuracy guarantee.