How to Check LLC Name Availability in the United States

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Choosing the right name for your LLC is a critical early step in forming your business. A great name can strengthen your brand, improve customer recognition, and avoid potential legal issues down the road. However, before you register, you must ensure your desired name is available and meets all legal requirements.

Why You Must Check Your LLC Name First

Every state requires that business names be unique and distinguishable from existing entities registered in that state. If your name is too similar to another business, your filing may be rejected. Checking availability beforehand saves time, avoids extra costs, and ensures compliance with state naming rules.

Step 1: Search Your State’s Business Name Database

Each state maintains an online database of registered business names. This is the first place you should look. These databases allow you to:

• Search for exact matches

• See similar or confusingly similar names

• Confirm whether your name meets uniqueness requirements

To find the right database, go to your state’s Secretary of State website and use their business entity search tool. If your name shows up as available, you can proceed to the next steps in formation.

Step 2: Understand State Naming Rules

In addition to uniqueness, most states require that LLC names include an LLC identifier, such as:

• LLC

• L.L.C.

• Limited Liability Company

Many states also prohibit certain words (like “Bank,” “Insurance,” or “University”) unless additional documentation or approval is provided. Be sure to review your state’s specific naming guidelines before filing.

Step 3: Conduct a Trademark Search

A name can be available for registration with the state but still be protected at the federal level. To avoid trademark infringement issues, check the USPTO trademark database.

The United States Patent and Trademark Office offers an online search tool (TESS) where you can identify trademarks that might conflict with your name or logo. If the name is already federally trademarked in a similar industry, you may need to choose a different option.

Step 4: Check Domain and Social Media Availability

In today’s digital marketplace, your online presence matters. Before finalizing your LLC name, check that:

• The domain name is available

• Social media handles are available

Even if a name is legally available, lack of domain or handles can affect your branding and marketing efforts. Tools like domain registrars and social username checkers can help verify availability across platforms.

Step 5: Reserve or Register the Name

Once you confirm your name is available and compliant:

• Some states allow you to reserve the name for a limited period before filing.

• Others require you to proceed directly with formation.

Reserving a name can be useful if you are not ready to file immediately but want to secure your ideal name.

Final Tips for Choosing an LLC Name

• Brainstorm multiple options in case your first choice is unavailable.

• Avoid names that are too long or difficult to spell.

• Consider future business growth and whether your name remains relevant.

• Check federal trademarks to prevent legal issues.

A thoughtful name choice combined with proper availability checks sets a solid foundation for your business launch.

By Aaron Kra, JD, Founder and Editor-in-Chief of Boost Suite, is a recognized authority on LLC formation, registered agents, and small-business compliance.

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