Benefits of Starting an LLC in South Dakota
South Dakota is one of the most business-friendly states in the country, and its LLC laws reflect that. Here are four reasons to form your LLC here.
No State Income Tax
South Dakota has no personal or corporate income tax, so your LLC’s pass-through income reaches your pocket without a state-level cut.
No Franchise Tax
Unlike many states that charge an annual privilege or franchise tax just for existing, South Dakota does not impose one on LLCs.
Series LLC Option
South Dakota allows series LLCs, letting you create separate “series” within a single LLC, each with its own assets, members, and liability protection.
No Publication Requirement
You do not need to publish a notice of formation in a newspaper, saving you hundreds of dollars and weeks of waiting.
Quick Facts South Dakota LLC
1Name Your South Dakota LLC
Your LLC name must be distinguishable from every other business entity on file with the South Dakota Secretary of State. It must also include a designator such as “Limited Liability Company,” “LLC,” or “L.L.C.”
Before you commit to a name, run a search using the South Dakota business name search tool to confirm availability. The search is free and takes seconds.
Avoid names that imply government affiliation or use restricted words like “bank,” “insurance,” or “university” without the proper licensing.
If you find the perfect name but are not ready to file, you can reserve it for 120 days by submitting a name reservation application with a $25 fee. This holds the name while you finalize your formation documents.
Yes. You can file Articles of Amendment with the South Dakota Secretary of State to change your LLC name at any time after formation.
2Choose a Registered Agent in South Dakota
Every South Dakota LLC must have a registered agent with a physical street address in the state. This person or company receives legal documents, government notices, and service of process on behalf of your LLC.
Your registered agent must be either an individual resident of South Dakota or a business entity authorized to do business in the state. P.O. boxes do not qualify.
You have three options:
- Be your own registered agent. Free, but your name and home address become public record, and you must be available at that address during business hours.
- Appoint someone you know. A friend, family member, or business associate in South Dakota can serve, but they take on the same availability requirements.
- Hire a professional registered agent service. Typically $100 to $300 per year. You get a business address on public records, reliable document handling, and privacy. Compare South Dakota registered agent services to find the right fit.
Yes. South Dakota law requires every LLC to maintain a registered agent with a physical street address in the state at all times. There are no exceptions.
Our Pick for Registered Agent
Northwest Registered Agent
Northwest provides a South Dakota street address, scans and forwards all legal documents, and shields your personal address from public filings.
We recommend Northwest for their transparent pricing, privacy-first approach, and responsive customer support.
3File Your Articles of Organization in South Dakota
Filing your articles of organization officially creates your LLC under South Dakota law. You can file online or by mail through the South Dakota Secretary of State.
Online filing is the fastest option. Submissions are processed immediately, meaning your LLC exists the moment payment goes through. Mail filings take 3 to 5 business days after the office receives your paperwork.
| Filing Method | Fee | Processing |
|---|---|---|
| Online | $150 | Immediate |
| $165 | 3-5 business days | |
| Expedited (online/mail) | $200 / $215 | 24 hours |
Your articles of organization will include basic information about your LLC: the name, registered agent and their address, the principal office address, the organizer’s name, and whether the LLC is member-managed or manager-managed.
If you prefer to file by mail, download the form and send it with payment to the address below.
Mail Filing Address
Secretary of State Office
500 E Capitol Ave
Pierre, SD 57501
If you would rather have a professional handle the entire filing process, compare South Dakota LLC formation services to see your options.
Want someone to handle all this for you?
ZenBusiness
ZenBusiness prepares and files your South Dakota articles of organization, handles compliance reminders, and gets you up and running without the paperwork.
Their free starter plan covers formation filing and a year of registered agent service, making it the most affordable hands-off option.
4Get an EIN for Your South Dakota LLC
An Employer Identification Number (EIN) is a federal tax ID for your business. You need one to open a business bank account, hire employees, and file federal taxes. The IRS issues EINs for free, and you can apply online at IRS.gov in about five minutes. Your EIN is assigned immediately after completing the application.
5Create a South Dakota LLC Operating Agreement
South Dakota does not legally require an operating agreement, but you should create one regardless. This internal document defines how your LLC operates, including ownership percentages, profit distribution, voting rights, and what happens if a member leaves.
Without an operating agreement, South Dakota’s default LLC statutes govern your business. Those defaults may not match what you and your co-owners actually agreed on.
Even single-member LLCs benefit from an operating agreement. It reinforces the separation between you and your business entity, which is critical for maintaining limited liability protection. Banks often ask for one when opening a business account, too.
Your operating agreement should cover:
- Member names and ownership percentages
- Capital contributions
- Profit and loss distribution
- Management structure (member-managed vs. manager-managed)
- Voting procedures
- Rules for adding or removing members
- Dissolution procedures
It is not legally required, but it is strongly recommended. An operating agreement protects your interests, clarifies member relationships, and strengthens your LLC’s liability shield. Most banks will request one when you open a business account.
6Open a Business Bank Account
Open a dedicated bank account for your LLC as soon as you have your EIN. Mixing personal and business finances is one of the fastest ways to lose your liability protection through what courts call “piercing the corporate veil.”
Bring these items to the bank:
- Filed articles of organization (or certificate of formation from the state)
- Your EIN confirmation letter
- Your operating agreement
- A government-issued photo ID
How Much Does a South Dakota LLC Cost
Here is every fee you may encounter when forming and maintaining a South Dakota LLC.
| Item | Cost | Frequency | Notes |
|---|---|---|---|
| Articles of Organization (online) | $150 | One-time | Filed with the Secretary of State |
| Articles of Organization (mail) | $165 | One-time | Takes 3-5 business days |
| Expedited Processing | $50 | One-time | Added to standard filing fee; 24-hour turnaround |
| Name Reservation | $25 | One-time | Holds name for 120 days; optional |
| Registered Agent Service | $100 – $300 | Annual | Free if you serve as your own |
| EIN | $0 | One-time | Free from the IRS |
| Operating Agreement | $0 – $200 | One-time | Free if DIY; attorney-drafted costs more |
| Annual Report | $55 | Annual | Due by first day of anniversary month |
| Certificate of Good Standing | $20 | As needed | Proof your LLC is in compliance |
Articles of Organization (online)
$150 · One-timeFiled with the Secretary of State
Articles of Organization (mail)
$165 · One-timeTakes 3-5 business days
Expedited Processing
$50 · One-timeAdded to standard filing fee; 24-hour turnaround
Name Reservation
$25 · One-timeHolds name for 120 days; optional
Registered Agent Service
$100 – $300 · AnnualFree if you serve as your own
EIN
$0 · One-timeFree from the IRS
Operating Agreement
$0 – $200 · One-timeFree if DIY; attorney-drafted costs more
Annual Report
$55 · AnnualDue by first day of anniversary month
Certificate of Good Standing
$20 · As neededProof your LLC is in compliance
How Does South Dakota Compare?
South Dakota Filing Fee
$150
National Average
$127
South Dakota’s filing fee is slightly above the national average, but the absence of state income tax and franchise tax makes it one of the most affordable states for ongoing LLC operation.
South Dakota LLC Taxes
State Income Tax
South Dakota does not impose a personal or corporate income tax. This is one of only a handful of states where your LLC’s pass-through profits are not taxed at the state level. You still owe federal income tax on your share of the LLC’s profits, but you keep everything at the state level.
Franchise Tax
South Dakota does not charge a franchise tax or privilege tax on LLCs.
Sales Tax
South Dakota has a 4.2% state sales tax. If your LLC sells taxable goods or services, you need to collect and remit sales tax. Some municipalities add their own local sales tax on top of the state rate. Check with the South Dakota Department of Revenue to determine whether your products or services are subject to sales tax and to register for a sales tax license.
Federal Tax Classification
By default, a single-member LLC is treated as a disregarded entity (taxed like a sole proprietorship) and a multi-member LLC is taxed as a partnership. In both cases, profits pass through to the members’ personal federal tax returns. You can elect to be taxed as an S-corp or C-corp by filing the appropriate form with the IRS if a different classification benefits your situation.
South Dakota does not tax LLC income at the state level. Your LLC is taxed federally based on its classification: as a disregarded entity (single-member), partnership (multi-member), or as an S-corp/C-corp if you elect. You may also need to collect and remit the 4.2% state sales tax if you sell taxable goods or services.
After Forming Your South Dakota LLC
Annual Report
South Dakota requires every LLC to file an annual report. The fee is $55, and the report is due before the first day of the anniversary month of your LLC’s formation. For example, if you filed your articles of organization on July 15, your annual report is due by July 1 each year.
You can file your annual report online through the Secretary of State’s website. A $55 penalty is assessed for late filings. If you fail to file entirely, your LLC will be marked as delinquent and may eventually be administratively dissolved.
BOI Report
As of the March 2025 FinCEN rule revision, Beneficial Ownership Information (BOI) reporting only applies to companies formed outside the United States. Domestic LLCs, including those formed in South Dakota, are exempt from this requirement.
Business Licenses and Permits
South Dakota does not require a general state business license. However, depending on your industry and location, you may need local permits, professional licenses, or industry-specific authorizations. Check with your city or county clerk’s office and any relevant state regulatory boards.
Yes. Every South Dakota LLC must file an annual report with a $55 fee. It is due before the first day of the month in which your LLC was originally formed. Late filings incur a $55 penalty, and continued noncompliance can lead to administrative dissolution.
Dissolving a South Dakota LLC
If you decide to close your LLC, you need to formally dissolve it with the South Dakota Secretary of State. Filing articles of dissolution costs $10. Simply stopping business activity or letting your annual report lapse does not dissolve the LLC. You will continue to accrue annual report fees and late penalties until you properly dissolve or the state administratively dissolves your LLC.
Before filing for dissolution, settle all debts, distribute remaining assets, and notify creditors as required by state law.
Reinstatement
If your LLC was administratively dissolved for noncompliance, you can apply for reinstatement by paying a $150 fee plus all delinquent annual report fees and penalties. Reinstatement restores your LLC as if the dissolution never occurred, but the accumulated fees can add up quickly.
A South Dakota LLC does not expire on its own. It exists indefinitely until you formally dissolve it or the state administratively dissolves it for noncompliance (such as failing to file annual reports). To close your LLC in good standing, file articles of dissolution for $10.
Frequently Asked Questions
The minimum cost is $150 if you file your articles of organization online. If you file by mail, it costs $165. Add $50 if you want expedited 24-hour processing. Beyond the state fee, you may pay for a registered agent service ($100 to $300/year) and an operating agreement ($0 to $200), but there is no state income tax or franchise tax adding to your ongoing costs.
If you file online, your LLC is processed immediately. Mail filings take 3 to 5 business days after the Secretary of State’s office receives your paperwork. Expedited processing (an additional $50) guarantees a 24-hour turnaround for either method.
Yes. South Dakota allows single-member LLCs. One person can form, own, and operate an LLC with full liability protection. A single-member LLC is taxed as a disregarded entity by default, meaning profits and losses are reported on your personal federal tax return.
South Dakota is one of the best. It has no state income tax, no franchise tax, no publication requirement, and it offers series LLC formation. The $150 filing fee is slightly above the national average, but the ongoing cost of maintaining a South Dakota LLC is among the lowest in the country. If you live or do business in South Dakota, it is an excellent choice.
