How to Check LLC Name Availability

Start With Your State's Business Entity Search

Every state's Secretary of State or equivalent filing agency runs a free, searchable database of registered business names, usually called a business entity search or name availability search. Arizona's system is called eCorp, Georgia runs its own eCorp Online Services, Texas uses its SOSPortal, and Nevada uses SilverFlume. Search your exact proposed name, and variations of it, before you draft any filing paperwork, since a rejected filing over a name conflict means resubmitting and sometimes paying the filing fee again.

Understand the "Distinguishable" Standard

States don't require your name to be entirely unique in the dictionary sense; they require it to be "distinguishable" from every other name already on file, which is a narrower standard than it sounds. Most states' rules explicitly say that differences in articles ("the," "a"), punctuation, plurals, spacing, and entity designators like "LLC" versus "L.L.C." versus "Limited Liability Company" do not make two names distinguishable from each other. A name search tool typically only checks for exact or near-exact matches, so read your state's specific distinguishability rule, not just the search results, before concluding your name is clear.

Check the Required LLC Designator and Restricted Words

Every state requires your LLC's legal name to contain a designator showing it's a limited liability company, such as "LLC," "L.L.C.," or "Limited Liability Company" (a professional LLC usually requires its own designator, such as "PLLC"). Most states also restrict certain words, commonly "bank," "insurance," "corporation," and words implying a government affiliation, without prior approval from a specific regulator. Confirm your proposed name meets both the designator requirement and any restricted-word rules in your state before filing.

Search Beyond Your Own State if You Plan to Expand

A name search only checks the one state you're searching in. If you plan to register your LLC as a foreign LLC in other states later, or if you want the same name nationally, search each state you might expand into, since a name available in your home state can already be taken in another.

Search the USPTO Trademark Database Separately

State approval of your LLC name only confirms it's distinguishable from other registered entities in that state; it does not check whether the name conflicts with a federally registered trademark. Search the United States Patent and Trademark Office's Trademark Electronic Search System (TESS) for your proposed name and close variations, since operating under a name that infringes someone else's registered trademark carries legal risk regardless of your state's approval.

Check Domain Names and Social Media Too

While not a legal requirement, checking whether a matching domain name and social media handles are available before you file saves a headache later if your business name and online presence don't match. This step is a practical consideration, not part of the state approval process.

Reserve the Name if You're Not Ready to File Yet

If you've confirmed a name is available but aren't ready to file Articles of Organization right away, most states let you reserve it for a fee. Reservation periods and costs vary significantly: Georgia's reservation lasts only 30 days for $25 and cannot be renewed, while North Dakota's lasts up to 12 months and is renewable, and a handful of states, including Florida and Indiana, don't offer name reservation at all. Check your specific state's rule before relying on a reservation to hold your name.

A Clear Name Search Doesn't Guarantee Approval

Even after a clean search, your state's filing agency makes the final call on whether a name is distinguishable enough when you actually submit the Articles of Organization. Staff review can catch a conflict the automated search tool missed, so treat your own search as a strong indicator, not a guarantee.

Don't Confuse a Name Reservation With Registering a Trademark

Reserving a name with your state only holds it against other LLC filings in that state for a limited time; it creates no trademark rights and doesn't stop someone else from using a similar name in a different context or registering it federally. If brand protection matters to your business, a trademark registration through the USPTO is a separate, additional step.

A DBA Is a Different Kind of Name Check

If you plan to operate under a name different from your LLC's legal name, that's a "doing business as" (DBA) or trade name, filed separately from your LLC's Articles of Organization, often with a different agency, such as a county clerk rather than the Secretary of State. Checking availability for a DBA follows a different process than checking your LLC's legal name.

Expect Rules to Differ by State

Since naming rules, restricted words, and reservation terms vary by state, don't assume a rule you read for one state applies in another. Always check your specific state's current naming statute or Secretary of State guidance rather than relying on a general rule of thumb.

This Isn't Trademark or Legal Advice

If your business name matters to your brand beyond simple state registration, such as for a business you plan to franchise or expand nationally, talk to a trademark attorney about a full clearance search before you commit to a name. This guide covers how to check state-level name availability, not trademark risk assessment.