1 (888) 462-3453

Whether you’re searching for the right business name or registering your LLC with the Idaho Secretary of State, Incfile can help. We have all the information you need to know on how to conduct an Idaho business search, plus LLC naming rules, assumed names and registering your business.


General Rules for LLC Names

These rules typically apply to all LLCs, regardless of what state they’re formed in.

Your LLC Name Must Be Unique

Your preferred business name cannot be used by any other LLC or formed entity in the State of Idaho. This is why it's imperative to perform an Idaho business entity search before you begin the filing process.

Your LLC Name Must Not Be Confusable with Another Business Name

Your LLC name should be original, but that’s not enough. It also cannot be similar to the name of a business or LLC in Idaho. For example, you cannot use the following factors to say your name is different and distinguishable from the name of another business:

  • Suffixes, such as Corporation, Company, Incorporated, Incorporation, Limited, Corp., Co., Inc., Ltd., LLC, etc.
  • Definite articles, such as “A,” “An,” or “The”
  • The conjunction "And," or “&"
  • The singular, plural or possessive forms of words
  • Abbreviations, punctuation, symbols, fonts, typefaces, etc.
Your LLC Name Must Contain Certain Words

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

Your LLC 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 state agency or organization (e.g., FBI, FDA, Idaho Comptroller, Idaho 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 International Olympic Committee
  • Imply a purpose that would be illegal for your business to carry out

Specific Rules for Idaho Business Names

As mentioned above, Idaho requires LLCs to comply with the general naming rules. Unlike many other states, the state of Idaho doesn't require further naming regulations to be met.

How to Come Up with a Business Name

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

Best represent your product or services

Be memorable enough to stand out

Appeal to your customers

Not be used by any other business

Need help coming up with business name ideas? Try our free Business Name Generator.

Idaho Business Search

Once you have an idea of your preferred business name, you’ll need to perform an Idaho business entity search to make sure the name hasn’t been taken by another formed business.

Incfile offers a fast, simple and convenient tool to look up your proposed business name. The Idaho Secretary of State also has a tool that lets you search the State of Idaho business name registry to see whether your desired name is available or if another business is using your preferred name.

Find out whether your preferred business name is available in Idaho with Incfile’s free tool

Trademarks and Service Marks

You must be careful that your Idaho LLC name doesn’t infringe on the trademark or service mark of another business. The easiest way to make sure your proposed business name doesn’t do that is to complete a trademark search through Incfile. If no one else is using it, you can even register it as a trademark yourself.

Make sure your business is starting off on the right foot when it comes to intellectual property.

Let Incfile run a trademark search for you.


Idaho DBA or Assumed Name

Many states allow you to do business under a different name from your legal LLC name. In some states, this is called a DBA (doing business as), trade name or fictitious name. Idaho refers to it as an assumed business name (ABN).

For example, your business might be called Collective Adventures, LLC, and under that company, you have a chain called White Water Excursions. You could file for a DBA or an assumed business name just for that company. You'll need to file a Certificate of Assumed Business Name with the Idaho Secretary of State, or you can have Incfile do it on your behalf through our DBA service.

Note: A trade name is not the same as a trademark. Learn more about trademark vs. DBA.

Register and manage a DBA name through our easy-to-use service

Register Your Business Name with the Idaho Secretary of State (SOS)

Once you’ve completed an Idaho business entity search, checked availability, followed the naming rules and decided whether you need a DBA, you can register your 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. You can file an Application for Reservation of Legal Entity Name with the Idaho Secretary of State. Your name will be reserved for 120 days once the application is processed. If you’re forming your Idaho LLC right away, you won’t need to reserve a name.


If you’re ready to start your LLC now, you can file your Certificate of Organization with the Idaho Secretary of State or have Incfile do it for you.

Incfile can handle all your formation paperwork with the State of Idaho for you — and we’ll do it for free!

Incorporate in Idaho for $0 + State Fee ($100)

FAQs about Idaho Business Names

How Do I Search for My Idaho Business Name?

Use our intuitive, free Business Name Search tool and enter your desired business name. You can also perform an Idaho business name availability search of the state's registry, which will tell you whether there are any corporations or LLCs in the state with that name.

Are There Any Rules for Naming My Business in Idaho?

Yes. Most LLCs are bound by general rules (applicable to all LLCs) and specific rules (applicable in the State of Idaho). You'll find more information above.

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

Yes. In Idaho, you can conduct business under an assumed business name or DBA name. Details are above.

Can I Reserve a Name for My Idaho LLC?

Yes. The Idaho Secretary of State allows you to reserve a name for 120 days if you don’t want to start your business immediately. Details are above. If you’re ready to start your business now, you don’t need to reserve a name.

Your Business with Incfile

No contracts. No surprises.

Only $0 + state fee to launch your business.

Start Now