Mississippi LLC Name Search & Naming Rules (2026)
Your Mississippi LLC name has to clear the Secretary of State's database before you can file. Here's how to search it free, the naming rules that trip people up, when the $25 reservation is worth it, and how the $25 assumed name lets one LLC run multiple brands.
Search availability free with the Secretary of State's Business Entity Search at business.sos.ms.gov. Your name must be distinguishable from every existing Mississippi entity and contain "Limited Liability Company," "LLC," or "L.L.C." Restricted words like "bank," "trust," "insurance," or "engineer" require proper licensing. Not ready to file? Mississippi reserves a name for $25 for 180 days. Operating under a different brand uses an assumed name (DBA) filed with the Secretary of State for $25, valid 5 years.
- Name search
- Free — SOS database
- Required designator
- LLC, L.L.C., or "Limited Liability Company"
- Name reservation
- $25 · 180 days
- Assumed name (DBA)
- $25 · 5-year term
- Filed with
- Secretary of State
- Distinguishable rule
- Yes — from all MS entities
Mississippi LLC Naming Rules
- Required designator: the name must contain "Limited Liability Company" or an abbreviation — "LLC" or "L.L.C."
- Distinguishable on the record: it can't match or closely shadow any entity registered, reserved, or registered with the Secretary of State — corporations, LLCs, nonprofits, and partnerships all count. Suffixes like "Corp.," "Inc.," or "Co." don't make an otherwise-identical name distinguishable.
- Restricted words: terms implying regulated activity — bank, trust, insurance, engineer — require proper licensing before they can appear in your name.
Check the domain before you commit: at $50 a filing, a name mistake isn't expensive to fix in Mississippi — but a branding one is. Before you fall for a name, confirm the .com (or a clean variant) is free and grab the matching social handles. The state check takes a minute; whether your real brand is available online is what actually decides if you'll be filing a $25 assumed name six months from now.
Name Checker & Availability Advisor
Mississippi LLC Name Checker & Availability Advisor
Format check + reservation guidance · not a substitute for the SOS search
Availability is determined solely by the Mississippi Secretary of State \u2014 run the official Business Entity Search before filing or reserving. Reservation: $25 for 180 days.
How to Search Mississippi Name Availability (Free)
Open the Secretary of State's Business Entity Search
Available at business.sos.ms.gov — free, available 24/7, and doesn't require an account for a basic name search.
Search core words without the designator
Search "Magnolia Coast Woodworks" rather than "Magnolia Coast Woodworks LLC" to surface the widest set of potential conflicts.
Check close variants — including reservations
The uniqueness requirement covers names already reserved by other businesses, not just active entities — so a "clean" active search isn't the whole picture.
Reserve or file
Clean search + ready to go → file the Certificate. Clean search + a real delay → the $25 reservation holds it for 180 days.
The $25 Reservation: When It's Worth It
File an Application for Name Reservation with $25 and the Secretary of State holds your name for 180 days — a genuinely long runway compared with most states' 60–120 day holds. Useful if you're lining up financing, licensing, or a launch date and want the name locked. But if you're filing within a week or two, skip it: Mississippi's formation process is straightforward, and the reservation just adds $25 and a step. Reserve when there's real time and real reason; otherwise go straight to the Certificate of Formation.
Assumed Names (Mississippi's DBA)
Want your LLC to operate under a different brand — or several? File a Trade Name Registration (assumed name / fictitious business name) with the Secretary of State for $25, valid five years and renewable. This is optional — Mississippi doesn't require you to register an FBN — but doing so protects your right to use it. One LLC can hold multiple assumed names, which is how a single company runs distinct brands ("Magnolia Coast Woodworks LLC" doing business as both "Coastal Cabinets" and "MC Custom Furniture"). Details in Step 7.
Ahmad Adil's Take: Mississippi's 180-day reservation is one of the longest holds in the region, which changes my usual "just file" advice a little. If you're still nailing down financing or a lease, $25 to lock the name for roughly six months is genuinely cheap insurance — reserve it. But most founders I talk to are ready to file now and just haven't hit the button yet; for them the reservation is a waste of a step. The assumed name is the underrated tool here: at $25 for five years, it's a cheap way to run multiple brands under one LLC, and unlike some states, Mississippi doesn't require any publication step to make it valid. Say your name aloud with "LLC" attached, check the .com, then file.
- ✓Forms your Mississippi LLC for $39 + the $50 state fee
- ✓Files online with the Secretary of State
- ✓Free Mississippi registered agent the first year
- ✓No upsells · No data selling · Privacy by Default
Disclosure: LLC School may earn a commission via this link, at no cost to you. See our advertising disclosure.
Mississippi LLC — FAQ
Ahmad Adil is the founder and CEO of LLC School. The figures here — the $50 Certificate of Formation, the free annual report due April 15, and Mississippi’s flat 4.0% income tax on earnings above $10,000 — reflect current Mississippi Secretary of State and Department of Revenue guidance. This is educational content, not legal or tax advice.
About Ahmad Adil → Compare States →