Mississippi Business Name Search: How to Check and Reserve a Name

Checking if your desired business name is available is the first step in forming a business in Mississippi. You cannot file articles of incorporation or a certificate of formation with a name that is already taken or too similar to an existing registered entity. This article walks you through the exact process of searching for available names and reserving one if you find a conflict.

Why Search Before You File

Filing articles or certificates with a name that is not available wastes time and money. The Mississippi Secretary of State will reject your filing outright if the name is already registered to another business. More subtle problem: a name might be available but confusingly similar to an existing entity, which the SOS can still reject as "not distinguishable." Searching first lets you verify availability and pick a backup name if needed, so your filing does not get rejected.

A name search also reveals whether someone else has reserved the same name. Reserved names are off-limits during the reservation period (180 days for an LLC name) even if the full articles have not yet been filed.

What You Will Need

• Your intended business name (and at least one or two backup options)
• Internet access and a web browser
• The desired entity type: corporation, LLC, limited partnership, or other structure
• Your EIN (if you already have one, though not required for the search)

How to Search for Available Business Names in Mississippi

Step 1: Go to the Official SOS Business Search Portal

Navigate to the Mississippi Secretary of State Business Services Division online search tool. The official search is at corp.sos.ms.gov/corp/portal/c/page/corpBusinessIdSearch/portal.aspx. This is the Secretary of State's official business search tool. Do not rely on third-party databases or business formation sites for your official availability check; those may be incomplete or out of date.

Step 2: Enter Your Business Name

Type your intended business name into the search box. The search field accepts the full name (for example, "Acme Consulting LLC" or "Mississippi Manufacturing Inc."). You can search by:

• Full legal name
• Partial name (how partial matches are returned depends on the search tool, so try several variations)
• Business ID number (if you already know it)

Start with your exact intended name. If you want to be thorough, also search for similar variations: abbreviations, different word order, or plurals. For example, if you want "Magnolia Coffee Roasters," also search for "Magnolia Roasters" and "Magnolia Coffee" to see if similar names are already taken.

Step 3: Review the Search Results

The search results list entities that match your query. Details shown can include:

• The registered business name
• Entity type (corporation, LLC, limited partnership, etc.)
• Current status (active, inactive, dissolved, or reserved)
• The date it was registered or filed
• The registered agent name and address (for active entities)

If no results appear, your exact name is not on record, but the Secretary of State decides availability when you file. If results do appear, examine them carefully. A match does not automatically mean your name is unavailable. An inactive or dissolved entity no longer holds a claim to the name. However, a reserved name or an active registration of a similar name means you cannot use it.

Step 4: Determine if Your Name is Distinguishable

Under Mississippi Code Ann. 79-29-109, which governs LLC names, your business name must be "distinguishable on the records of the Secretary of State" from any other registered or reserved name. The test is not a letter-by-letter match. For example, "ABC Supply Co." and "ABC Supply Company" might be considered too similar because they would be confused by the public. Conversely, "ABC Supply" and "XYZ Supply" are clearly distinguishable.

If you find a name that looks close to what you want, consult with an attorney if you are uncertain whether it meets the distinguishable test. The SOS staff cannot give you a binding opinion on whether your name is sufficiently different from an existing one.

Step 5: Search for DBAs if Applicable

If you are operating under a name that is different from your legal entity name (for example, you form "Smith Consulting LLC" but want to do business as "Main Street Marketing"), you can file a separate Fictitious Business Name Registration with the Secretary of State (registration is voluntary and costs $25). Search to confirm the DBA name is not already registered by another business. The SOS search includes DBA registrations.

Understanding Your Search Results

What "Distinguishable" Means

The word "distinguishable" is the key legal standard. The statute requires a name to be distinguishable on the records of the Secretary of State, and the Secretary of State makes the final call. These are general illustrations, not official rules:

• Identical names are not distinguishable (obvious).
• Names that differ only in punctuation or capitalization are not distinguishable ("Smith LLC" and "Smith, LLC" are too similar).
• Generic variations ("Company" versus "Corp") are often not distinguishable. "ABC Supply Company" and "ABC Supply Corp" might both fail because the material part ("ABC Supply") is the same.
• Entirely different names are always distinguishable. "ABC Supply" and "XYZ Consulting" have no confusing similarity.

If you are in doubt, do not assume your name is safe just because it is not an exact match. The SOS may still reject it during your filing if the staff determines it is not distinguishable.

Inactive and Dissolved Entities

If your search shows a matching name but the status is "inactive" or "dissolved," that name may be available. However, a dissolved entity may be able to reinstate. To be safe, ask the Secretary of State whether the name is still protected, or choose a different name. Some businesses do attempt to acquire the name from the dissolved entity, but that requires negotiation and is outside the scope of a simple search.

Reserved Names

If a name shows a status of "reserved," it is off-limits until the reservation expires (180 days for an LLC name). Anyone can reserve a name in Mississippi for $25 (discussed below). Reserved names do not block you from forming a business with a different name; they only prevent use of that specific name until the reservation expires.

Mississippi Business Name Requirements by Entity Type

Limited Liability Companies (LLC)

Your LLC name must include the words "limited liability company" or the abbreviation "L.L.C." or "LLC." You can also include the name of a member or manager. Examples: "Acme Consulting LLC," "Smith and Jones Limited Liability Company," or "The Main Street Bakery, L.L.C."

Professions such as law, accounting, architecture and engineering have their own licensing rules about business names, so check with the relevant licensing board before using those words in a name.

Corporations

A corporation name must include the word "Corporation," "Corp.," "Company," "Co.," "Inc.," or "Incorporated." Examples: "Acme Manufacturing Corporation" or "Smith Enterprises, Inc." The rules about restricted professions apply to corporations as well.

Limited Partnerships and LLPs

Limited partnerships and limited liability partnerships have their own naming designator rules under the Mississippi Code, so check the Secretary of State's guidance before you file.

How to Reserve a Business Name in Mississippi

If your desired name is not yet available but you are not ready to file your full articles of incorporation or certificate of formation, you can reserve it. An LLC name reservation lasts 180 days, so check with the Secretary of State on the term for other entity types. A reservation prevents anyone else from using or registering it while you prepare your paperwork or financing.

Step 1: File an Application for Name Reservation

Submit a name reservation application to the Mississippi Secretary of State using the Application for Name Reservation (online through the Secretary of State portal). The form is available at the SOS website at sos.ms.gov/business-services. You can file online through the Mississippi Secretary of State's online filing portal at corp.sos.ms.gov/corp/portal/c/page/corpnewfilings/portal.aspx.

Step 2: Pay the Reservation Fee

The name reservation fee is $25. Payment is processed when you submit the form online. If you file by mail (not recommended, as it is slower), include a check payable to the Mississippi Secretary of State. Online filing is the standard method and takes minutes.

Step 3: Receive Your Confirmation

After you submit the application and payment, keep whatever confirmation the Secretary of State provides, including the reservation date and expiration date, for your records.

Step 4: Use Your Reserved Name Within 180 Days

File your certificate of formation (for LLCs) or articles of incorporation (for corporations) using the reserved name before the reservation period expires. If you do not file by the deadline, the reservation lapses and the name becomes available to others again. Check with the Secretary of State on whether a reservation can be extended or renewed.

Common Mistakes to Avoid

Relying on Third-Party Search Results

Business databases maintained by third parties (LegalZoom, Northwest Registered Agent, etc.) may not be current. Some third-party sites have reported outdated or incomplete information. Always verify with the official SOS search before making a final decision on your name.

Not Accounting for Name Suffixes

Forgetting that your entity type requires a suffix (LLC, Corp, Inc, etc.) can lead to confusion. Plan for the suffix from the start. "Smith Consulting" and "Smith Consulting LLC" are different names; if you file without the suffix and later realize you need it, you will need to amend your articles, which costs time and money.

Assuming No Results Means You Own the Name Forever

An available name is not permanently reserved just because you found it available in a search. Anyone else can reserve or file with that name at any time. Reserve the name immediately ($25) if you have decided it is the one you want, or file your full articles quickly. Do not wait weeks to make your decision.

Ignoring Trademark Implications

The SOS name search checks for conflicts with other Mississippi entities. It does not check federal trademarks or trademarks in other states. Before committing to a business name, search the U.S. Patent and Trademark Office (USPTO) database at uspto.gov to confirm no federal trademark conflicts exist. A conflict with a federally registered trademark could force you to rename your business later, even if the SOS approved it.

Forgetting a DBA Search

If you plan to operate under a name different from your legal entity name, search for the DBA name in the SOS database before you register it. A DBA that matches an existing entity name or reservation may be rejected.

Tips for Choosing a Business Name

Aim for Clarity and Distinction

Choose a name that clearly describes your business or industry and is distinct from competitors. A unique name is easier to trademark, easier to register across states, and easier for customers to remember. Avoid names that are too generic ("Mississippi Consulting") or that could be confused with well-known brands.

Plan for Growth

Pick a name that will still fit if your business expands. For example, "Smith Plumbing Services" is more flexible than "Smith's Northside Plumbing" if you plan to open additional locations. You can always add a DBA later for specific divisions or locations.

Keep Online Presence in Mind

Before finalizing your name, check whether a matching domain name is available. If "myamazingbusiness.com" is already taken, consider a different name or a different domain extension (.co, .io, etc.). Also search social media platforms to confirm the name is not already used by a competing business.

Verify No Trademark Conflicts Before Investing

Do a federal trademark search on the USPTO website before spending money on branding, signage, or advertising. A business operating under a name that infringes a federally registered trademark can be forced to rebrand, destroying all your marketing investment.

Expected Results and Timeline

Online name searches are instant. You will see results immediately after you submit your search. If you file a name reservation or articles of formation online, most filings are approved and recorded within 24 hours.

If the SOS identifies a problem with your name (too similar to an existing entity, missing required suffix, etc.), the Secretary of State will notify you. You can then correct the name and resubmit. Rejected filings do not delay your timeline significantly, but it is better to search and verify in advance than to learn of a conflict after you have submitted your articles.

Next Steps After Your Name is Approved

Once you have confirmed your name is available, your next steps are to file your full articles of formation or incorporation. For an LLC, you will file a Certificate of Formation with a $50 filing fee. For a corporation, you will file Articles of Incorporation, also with a $50 filing fee. Both forms are submitted through the same online portal.

You will also need to appoint a registered agent and designate a registered office address in Mississippi. This is a required step and must be completed before your business is officially formed.

Disclaimer

This article is informational content only and is not legal or tax advice. The rules governing business names in Mississippi are governed by the Mississippi Code and the Secretary of State's regulations. Business formation involves legal and tax considerations that vary by situation. Before forming a business, consult with a qualified attorney and a CPA to ensure your choice of name and entity structure meet your specific goals and comply with all applicable laws.

For official guidance, visit the Mississippi Secretary of State Business Services Division at sos.ms.gov/business-services or contact the office directly at (601) 359-1633. All fees and procedures described in this article reflect the rules and rates as of 2026; confirm current fees and procedures on the SOS website before filing.