LLC Step Explainer · 2026-05-12

LLC Name Search: How to Check Availability & Reserve Your Business Name (2026)

An LLC name search verifies that your chosen business name is available and compliant with state law before you file formation documents. Every state maintains a searchable database of registered business entities, and you must confirm your name isn't already taken or confusingly similar to an existing company. Running a thorough name search protects you from rejection delays, trademark conflicts, and costly rebranding. Most states offer free online search tools through their Secretary of State website, making it quick to check availability and reserve your name if needed.

What it is

An LLC name search is the process of querying your state's business entity registry to determine whether your proposed Limited Liability Company name is available for use. State law requires that your LLC name be distinguishable from all other registered entities in the state, meaning it cannot be identical or deceptively similar to existing corporations, LLCs, or reserved names. The search typically involves visiting your Secretary of State's online database and entering variations of your desired name to check for conflicts.

Beyond state-level availability, a comprehensive name search should include federal trademark screening through the U.S. Patent and Trademark Office's TESS database to avoid infringing on registered trademarks, even if the name is available at the state level. You should also check domain name availability and social media handles to ensure consistent branding across platforms. Most states allow you to reserve an available name for 60 to 120 days by filing a name reservation form and paying a fee, typically between fifteen and fifty dollars, which holds the name while you prepare formation documents.

All states require that LLC names include a designator such as "Limited Liability Company," "LLC," or "L.L.C." and prohibit words that imply governmental affiliation or regulated activities (like "bank" or "insurance") without proper licensing. Some states maintain restricted word lists or require additional documentation if your name includes certain terms. After confirming availability and compliance, you proceed to file your Articles of Organization using the exact approved name format.

Where this matters most in practice: Pennsylvania-specific rules. If you want to skip ahead, see compare top providers.

State variations

California (CA): California's Secretary of State offers a free online business search tool at bizfileonline.sos.ca.gov. Name reservations cost $10 and last 60 days. California prohibits names that include "bank," "trust," or "cooperative" without approval from the Department of Financial Protection and Innovation.
New York (NY): New York requires a name search through the Department of State's online database. Name reservations cost $20 and are valid for 60 days. New York is particularly strict about names containing "doctor," "lawyer," or professional designations, requiring proof of licensure or consent from the appropriate professional board.
Texas (TX): Texas offers a free entity search on the Secretary of State's SOSDirect portal. Name reservations cost $40 and last 120 days, longer than most states. Texas maintains a comprehensive list of restricted words including "Olympic" and "paralympic," which require approval from the U.S. Olympic Committee.

Common mistakes to avoid

Skipping federal trademark screening. Finding a name available at the state level does not guarantee it's free from trademark conflicts. If another company holds a federal trademark on a similar name in your industry, you risk costly cease-and-desist letters or litigation even after forming your LLC.
Using prohibited or restricted words. Including words like "bank," "insurance," "university," or "attorney" without proper licensing or approval from regulatory agencies will result in name rejection. Each state maintains specific restricted word lists that require additional documentation or proof of licensure.
Forgetting the LLC designator. State law mandates that your legal name include "Limited Liability Company," "LLC," or an approved abbreviation. Omitting this designator will cause your Articles of Organization to be rejected, delaying formation by weeks.
Not checking domain and social media availability. Securing a matching domain name and social media handles is critical for brand consistency. Delaying this check until after filing can force you to operate with mismatched digital identities, confusing customers and weakening your online presence.
Assuming similar names are acceptable. State databases flag names that are "confusingly similar" to existing entities, not just exact matches. Names that differ only by punctuation, spacing, or minor word variations are often rejected to prevent consumer confusion and legal disputes.

Frequently asked questions

How do I search for LLC name availability in my state?

Visit your Secretary of State's website and locate their business entity search tool, typically found under "Business Services" or "Corporations Division." Enter your proposed name and variations to check for conflicts. Most states provide free online databases; some require you to call or visit in person. Verify the search includes all entity types: LLCs, corporations, partnerships, and reserved names.

Can I use a name similar to an existing business?

No. State law requires your LLC name to be distinguishable from all registered entities. Names that differ only by punctuation, word order, or minor spelling variations are typically rejected as confusingly similar. Even if a name passes the state database, you must also check federal trademarks to avoid infringement liability that can arise later.

What does it cost to reserve an LLC name?

Name reservation fees range from ten to fifty dollars depending on the state, with reservation periods lasting 60 to 120 days. California charges ten dollars for 60 days, New York charges twenty dollars for 60 days, and Texas charges forty dollars for 120 days. Not all states require reservation; you can often proceed directly to filing Articles of Organization if the name is available.

Do I need to include LLC in my business name?

Yes. Every state requires that your legal LLC name include a designator such as "Limited Liability Company," "LLC," "L.L.C.," or other approved abbreviations. This requirement is specified in each state's LLC statute and protects the public by clearly identifying your entity type. Operating without the designator can result in personal liability and regulatory penalties.

How do I check if my LLC name infringes on a trademark?

Search the U.S. Patent and Trademark Office's Trademark Electronic Search System (TESS) at uspto.gov to identify registered and pending trademarks. Enter your proposed name and related terms, filtering by relevant industry classes. A state-level name search does not prevent trademark infringement claims, so federal screening is essential before committing to a name and investing in branding.

Authoritative sources

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Next step

Once you've confirmed your LLC name is available and compliant, the next step is filing your Articles of Organization with your state. This legal document officially creates your LLC and registers your chosen name. AthenAI's formation guide walks you through the entire process, from name reservation to obtaining your EIN, with state-specific checklists and filing instructions. Use our step-by-step tool to ensure you complete every requirement correctly and avoid delays that can push back your launch date.

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