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Naming Your South Dakota LLC

Whether you’re searching for the right South Dakota business name or registering your LLC with the Secretary of State, we can help. We’ve got all the information you need on a South Dakota business entity search, LLC naming rules, fictitious names and registering your business.

South Dakota Secretary of State Business Search

You should start naming your business by completing a South Dakota business entity search with the Secretary of State. They have a helpful tool on their website that lets you search the register of SD LLCs and corporations to see if someone already has your desired business name.

If the business name is already used, that means it’s not available and you won’t be able to register it. Try searching for a different business name instead.

South Dakota Secretary of State business name search tool.

South Dakota LLC Naming Rules

Once you’ve decided on a name for your LLC and checked business name availability, you’ll need to meet South Dakota Secretary of State naming rules.

Your LLC Business Name Must Be Unique

The business name you have chosen cannot be used by any other LLC or corporation in the state of South Dakota. This is why you should check business name availability on the SD SOS website.

Your LLC Business Name Must Not Be Confusable with Another Business Name

It’s not enough for your LLC name to be unique. It also cannot be similar to the name of a corporation or LLC in South Dakota. For example, you cannot use the following factors to say your name is different from the name of another business:

  • Suffixes, such as Corporation, Company, Incorporated, Incorporation, Limited, Corp., Co., Inc., Ltd., LLC, etc.
  • Definite articles like “A,” “And,” “An,” “&,” “The,” etc.
  • The singular, plural or possessive forms of a word
  • Abbreviations, punctuation, symbols, fonts, typefaces, etc.

Your LLC Business Name Must Contain Certain Words

All LLCs must have the words “Limited Liability Company,” “L.L.C.” or “LLC” in their name. These words should normally come at the end of the name.

Your LLC Business Name May Have Other General Restrictions

Most states will not allow you to form LLCs with names that:

  • Are very similar to the name of a federal or SD agency or organization (e.g., FBI, FDA, South Dakota Department of Revenue, South Dakota Police, Treasury, etc.)
  • Suggest affiliation with a federal or state agency or organization
  • Use the term “Olympic” or any terms that are trademarks of the Olympic organization
  • Imply a purpose that it would be illegal for your business to carry out

South Dakota LLC DBA Names

You might choose to do business under a different name from your legal LLC name. In South Dakota, doing business under a different name is known as a “Fictitious” or “Doing Business As (DBA)” name. You might choose to use a different name from your formal LLC name for a variety of reasons.

For example, your LLC might be called South Dakota Forestry Tours Holding Company LLC and you have a brand called Leafwood Tourism. You should file a fictitious/DBA name to let the South Dakota Secretary of State know. In South Dakota, you do that through a “DBA - Business Name Registration,” or you can have Incfile do it on your behalf through our Assumed Business Name service.

Incfile’s DBA/Fictitious Name service

Register Your Business Name with the South Dakota Secretary of State

Once you’ve searched for your South Dakota business name, checked availability, followed the naming rules and decided whether you need a fictitious name, you can register your SD LLC name. There are a couple of ways to do this.

  • If you don’t want to form your LLC right now, you can reserve the business name with the South Dakota Secretary of State. You will need to complete an “Application for Reservation of Name” and file it with the SD SOS. You do not need to reserve a name if you are forming your business right away.
    South Dakota SOS LLC name reservation form.
  • If you’re ready to start your LLC, you can formally file your Articles of Organization with the South Dakota SOS, or let Incfile take care of it for you.

FAQs on Naming Your South Dakota LLC

You might find the following answers useful.

How Do I Search for My South Dakota LLC Business Name?

Just go to the business name search tool and enter your proposed business name. You can search the register of the South Dakota Secretary of State, which will tell you if there are any corporations or LLCs with that name.

Are There Any Rules on Naming My South Dakota LLC?

Yes. Most LLCs will be bound by general rules (applicable to all LLCs) and specific rules (applicable in the state of South Dakota). We’ve detailed these rules above.

Can I Do Business Under a Different Name Than My LLC Name in South Dakota?

Yes. Known as “assumed names,” “fictitious names,” “doing business as names” or “trade names,” you can choose to conduct business under a different name. Details are above.

Can I Reserve a Name for My South Dakota LLC?

Yes. The South Dakota Secretary of State allows you to reserve a name if you don’t want to start your business immediately. Details are above. If you are ready to start your business now, you do not need to reserve a name.

Useful Resources for Naming Your South Dakota LLC

You might find these resources helpful.

Trademarks and Service Marks

You must be careful that your South Dakota LLC name does not infringe on the trademark or service mark of another business. The easiest way to make sure your proposed business name does not infringe is to carry out a trademark search through Incfile. If it doesn’t infringe, you can even register it as a trademark yourself.

Incfile Trademark Search and Registration service

Find the Perfect Name for Your South Dakota LLC

The perfect business name can be elusive. We have a complete guide to choosing the right business name, but basically, you'll want to choose a name that will:

  • Appeal to your customers
  • Be memorable enough to stand out
  • Best represent your product or services
  • Not be used by another business

Incfile guide to choosing a business name

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What are the fees and requirements to form a business in South Dakota?

Filing Time and Price

The state charges this amount to file a new business entity. This fee goes directly to the Secretary of State.

State Fee State Filing Time Expedited Filing Time
$150 5 Business Days 1 Business Day

Compliance Requirements

This report is mandatory and must be filed within the specified time frame in order for the entity to remain in good standing with the state. Failure to file this report can lead to the company being revoked or administratively dissolved.

Annual Report

Frequency: Annually

Due Date: Before 1st day of 2nd month following anniversary month.

Filing Fee: $50

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