How to search Mississippi business entities online

Mississippi's business entity search is at corp.sos.ms.gov, operated by the Mississippi Secretary of State. The older URL at business.sos.ms.gov no longer resolves. Searching is public; filing requires a registered filer account. The portal works best in Google Chrome.

What the search covers

The database includes domestic and foreign business corporations, nonprofit corporations, LLCs, limited partnerships, LLPs, general partnerships, business trusts, and fictitious/trade names registered with the Secretary of State.

Search options

Mississippi's portal offers more search modes than most state registries:

• Business Name — five sub-modes: Starting With, All Words, Any Words, Sounds Like, Exact Match
• Business ID — the SOS-assigned entity identifier; single-record lookup
• Officer Name — searches individuals listed as officers or directors
• Registered Agent Name

Annual reports and a 2024 change for nonprofits

Corporations and LLCs must file annual reports by April 15 each year. Beginning in 2024, nonprofit corporations were added to the annual reporting requirement; nonprofit annual reports are due May 15. Certificates of Good Standing and certified copies can be ordered through the portal after login.

All payments are nonrefundable. If an entity has been dissolved or revoked and needs reinstatement, the process requires a tax clearance letter from the Mississippi Department of Revenue before the Secretary of State will process the filing.

Online-only filing

Mississippi no longer accepts paper forms for business entity filings. All formations, amendments, dissolutions, and annual reports must be submitted through the online portal. This applies to both domestic and foreign entities.

This guide is informational only and is not affiliated with the Mississippi Secretary of State's office. Verify current procedures at sos.ms.gov — Business Services. Source: Mississippi Secretary of State, verified May 2026.