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The Limited Liability Company (LLC) is a smart entity choice for many start-up businesses.  The LLC provides personal liability protection and has the potential to save money on taxes. With a little research, you can learn how to form an LLC in South Dakota without an attorney.

Unlike a sole proprietorship or partnership where the small business owner can be personally liable for lawsuits against the business, the LLC is a separate legal structure, protecting for the business owner’s personal assets.

Besides the liability protection, the Limited Liability Company provides several other benefits over the sole proprietorship, partnership, and corporation because of the multiple tax options, ease of administration and management flexibility.

Forming an LLC in South Dakota can be both affordable and is simple enough for most people to start on their own.  That said, it’s not a bad idea to have a legal professional like While the filing is pretty straightforward, it’s nice to have some support if you have questions, alerts when the annual report is due, forms like operating agreements, banking resolutions and more.  There are companies like IncFile or Inc Authority that provide LLC formation guidance for only the cost of the state fees!.

To form a Limited Liability Company in South Dakota, file the Articles of Organization with the South Dakota Secretary of State.  The LLC filing fee is $150 for online filings or $165 for filings made by mail.

Approval for the LLC is immediate when filing online and around one week when filing by mail.

If you have questions, contact the South Dakota Secretary of State.



The steps for filing online or by mail are largely the same.  The screenshots show how to file online.

How to Form an LLC in South Dakota

  • In the “Choose a Business Entity Type” drop-down menu select “(Domestic) Limited Liability Company”.  The brief difference between domestic and foreign is that if your LLC is based in South Dakota, it is domestic.  If the LLC was formed in another state and wanting to do business in South Dakota, then it would be foreign.SD Select Business Entity


Step 1: Name the LLC

Enter the name you want for the LLC.  The name of the LLC also has to differ from other entity names registered with the Secretary of State.  Before choosing a name, check on available LLC names in South Dakota before going through the filing process to be sure the one you want is available.

The name of the LLC must also include a designator at the end of the business name.  A designator describes what type of business entity it is. Available designators include:

  • Limited Liability Company
  • Limited Liability Co.
  • Ltd. Liability Company
  • Ltd. Liability Co.
  • L.L.C.
  • LLC
  • L.C.
  • LC

A comma may be used after the business name and before the designator.  “Cowboy Cleaners LLC” and “Cowboy Cleaners, LLC” are both acceptable.

Enter the name along with the designator you would like to use twice to confirm the name you want was entered correctly.

Next, the optional field for “Professional Type” may need attention.  Most LLCs will skip this section, but if your business requires licensing before providing services, select they type of licensing.

South Dakota LLC Name Registration

Step 2: Principal Address

In this section, enter the street address, city, state and zip code of the initial principal office.  This address can be the physical address of the LLC or it can be the address where the business records are stored.  You may not use a PO Box for the designated office.  There are also fields for a phone number and email address.  Many people do not provide the phone number as it becomes public record.  The email is required and is the address where the Secretary of State will send notifications when annual reports are due.

A mailing address is needed and it can be the same as the principal address.  If the records of the LLC will be sent to a different address, enter that information in the Mailing Address Section.  If the address is the same as the principal office, click on the “Use this address as the Mailing Address also” box to copy the Principal Address address.

Step 3: Select a Registered Agent

To have an LLC in South Dakota, a Registered Agent must be identified.  The Registered Agent can either be a resident or business entity that is registered in South Dakota (Select “Noncommercial Registered Agent”) or a Registered Agent service (Select “Commercial Registered Agent”) who has registered with the Secretary of State.  The Registered Agent must have a physical address in the state (PO Boxes are not allowed) and act as a point of contact to receive legal documents, tax notices, summons, subpoenas, etc on behalf of the LLC.

If you selected Noncommercial Registered Agent, it is likely the name of that person isn’t listed, so you will enter their name, address and email in the contact fields.

Even though the business owner can be the registered agent, their name and address become public record and with that comes a loss of privacy. This is more important for some entrepreneurs, especially when they are doing business from home.

Select a Registered Agent for South Dakota LLC

Step 4: Organizer(s)

An LLC Organizer is someone involved with the formation of the Articles of Organization.  The Organizer may or may not become a member, such as a mentor, attorney or accountant, but any of the initial members can be listed as an organizer.

For most LLCs, the members will also be the organizers.

At least one organizer is required.  Enter the name and address for each organizer and click add.

South Dakota LLC Organizers

Step 5: Additional Details – Period of Duration & Delayed Effective Date

Period of Duration – In this section, you can indicate how long the LLC will remain in existence.  Most LLCs will choose a Perpetual duration, however some businesses (usually investment related) will have a specific closure date.

Delayed Effective Date – If you want the LLC to start immediately, leave this field blank.  If you want the LLC to start later, enter a date less than 90 days in the future.  The main reason for delaying the LLC start date is when the filing is being done close to the end of a calendar year and the business isn’t going to have any activity until the start of the year.  By delaying until the following year they will reduce the number of end-of-year filings.

SD LLC Delayed Effective Date

Step 6: Management

This section asks if the LLC is Member-Managed or Manager-Managed.

  • Member-Managed LLCs have an active involvement in the management and have authority to act on behalf of the LLC.
  • Manager-Managed LLCs are hired by the members to run the LLC, similar to a CEO of a corporation.  This is generally used when there are passive members in the LLC and the members do not actively manage or operate in the affairs of the business.

Most LLCs are Member-Managed.

Select Member-Managed or Manager-Managed in the “Managed by” drop-down menu.

Next, select “Yes” or “No” to the question whether one or more of the members will be liable for the debts and obligations of the LLC.  Most filers are going to choose “No”.

South Dakota LLC Manager vs Member Managed

Step 7: Beneficial Owner(s)

This is an optional section and each member of the LLC is typically considered a beneficial owner.  Entering their names with the LLC filing puts their names and address on public record.

SD Beneficial Owners


Step 8 – Add Additional Articles

This is an optional section and not used by most LLCs.  Here you would include additional rules for the operation of the LLC.


Step 9 – Recipient(s)

Another optional section and isn’t used by most filers.  If the filings need to be mailed to an attorney or formation company once the entity is formed, enter their information here.


Step 10: Review

Review that all the information is correct.  If there are no corrections, click “Next”

Step 11: Signature

Have an individual forming the LLC to sign and accept the terms and conditions.  Click the “Next” button to save the information and proceed.

Step 12: Pay and File

Pay and file the Articles of Organization.

In a few seconds, the LLC will be approved.

That concludes the basics of forming an LLC in South Dakota.  Remember, even though you can do it yourself, there is more to an LLC than just the filing.  If you have questions, work with an attorney or a specialized entity formation company such as IncFile or Inc. Authority to make sure everything is done correctly.

Wrapping Up

While not required, an Operating Agreement is recommended in many cases.  An Operating Agreement is a legal document outlining the roles and responsibilities for the members of the LLC.  Read more about when an LLC needs an Operating Agreement.

After filing the LLC, be sure to register for an Employer Identification Number (EIN) with the Internal Revenue Service (IRS).  The EIN is basically a social security number for a business and will be needed before opening a business bank account.  There is no cost to apply and it takes about 5 minutes to get.  See how to apply for an EIN.

Last, before starting a business in South Dakota, you may still need to apply for business licenses, sales tax permits, self-employment taxes and more in South Dakota.  See the Guide to Starting a Business in South Dakota for more information.