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Mississippi LLC annual report & franchise tax deadlines 2026-2027

Every recurring Mississippi filing for LLCs, S corps and C corporations — due dates, fees and the official source for each. Last verified Oct 21, 2026.

LLC

ReportAnnual Report Confirmed on official page
DueJan 1 to Apr 15 each year (online)
State feeNo fee (domestic LLC)
How oftenannual

Corporation (C & S corp)

ReportCorporate Annual Report Confirmed on official page
DueJan 1 to Apr 15 each year (online)
State fee$25
How oftenannual

Franchise & entity-level taxes

Corporate franchise tax
corp, s corp		With the income tax return (Apr 15 C corps; Mar 15 S corps)
Being phased down; repealed effective Jan 1, 2028; minimum $25 Confirmed on official page

State income & estimated tax

Corporate income taxYes
C corp returnApr 15 (83-105)
Partnership / S corp returnMar 15 (84-105)
Corporate estimatesApr 15, Jun 15, Sep 15, Dec 15 (follows the federal corporate schedule)

General pattern — verify Calendar-year pattern; confirm with the revenue department.

Sales tax

Filing frequency (monthly, quarterly or annual) is assigned by the state based on your tax liability. Returns are generally due the 20th of the month after the reporting period.

General pattern — verify Your assigned frequency and due day appear in your state tax account.

IRS disaster postponements in Mississippi

IRS relief is federal. Whether Mississippi follows the postponement for state returns varies — check the state revenue department.

Your Mississippi calendar

Add your formation month/year to date anniversary-based reports. Calendar-year filers; weekend and federal-holiday dates roll to the next business day.

Upcoming deadlines

Not tax advice — verify each date with the linked source. Fiscal-year filers' dates differ.

Tools that help you stay compliant

Partner placements — placeholders, not yet live. Disclosed as sponsored when active.

Placeholder · Registered agentRegistered agent partnerAnnual-report reminders and filing service in Mississippi.
Partner link (placeholder)
Placeholder · FormationLLC formation partnerForm or convert an entity, with compliance alerts.
Partner link (placeholder)
Placeholder · PayrollPayroll partnerFiles 941s, W-2s and state payroll returns automatically.
Partner link (placeholder)

Mississippi deadline FAQ

When is the Mississippi LLC annual report due?

Jan 1 to Apr 15 each year (online).

How much does the Mississippi LLC annual report cost?

State fee: No fee (domestic LLC).

When is the Mississippi corporation annual report due?

Jan 1 to Apr 15 each year (online). Fee: $25. S corporations file the same report as other corporations.

Does Mississippi have a franchise tax or annual LLC tax?

Yes — Corporate franchise tax: With the income tax return (Apr 15 C corps; Mar 15 S corps) (Being phased down; repealed effective Jan 1, 2028; minimum $25).

When are Mississippi business income tax returns due?

C corporations: Apr 15 (83-105). Pass-through entities (partnerships, S corps): Mar 15 (84-105). These are general calendar-year patterns — confirm with the state revenue department.

How often do I file Mississippi sales tax?

Filing frequency (monthly, quarterly or annual) is assigned by the state based on your tax liability. Returns are generally due the 20th of the month after the reporting period.

What happens if I miss a Mississippi deadline?

Most states charge a late fee or penalty and interest, and an entity that keeps missing its annual report can lose good standing and eventually be administratively dissolved. Check the official source for the exact penalty and reinstatement steps.

Official sources

Federal dates: IRS Publication 509. Disaster relief: IRS tax relief in disaster situations.

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