How to File LLC Taxes in Mississippi (2026)
A Mississippi LLC pays state tax through the Mississippi Department of Revenue. A single-member LLC reports profit and loss on Schedule C and files Form 80-105. A multi-member LLC or an LLC with an S-corp election files Form 84-105.
An LLC that elects C-corp status files Form 83-105 instead. This page also covers franchise tax, the pass-through entity election, sales tax and the DOR deadline for each form.
Quick Summary
- Confirm your LLC's DOR form before you file. How your LLC is classified, more than its member count, decides the right Mississippi return.
- Confirm this year's income tax rate before filing. Mississippi's flat individual rate has been stepping down under a phase-down law.
- Run PTE or S-corp numbers past a tax professional first. Your LLC's income level and ownership setup decide which election actually saves money.
Mississippi LLC Tax Summary
The table below shows the federal and Mississippi form each LLC type files, who administers it and the current filing deadline and rate.
| LLC Type | Federal Form | State Form | Filed With | Filing Deadline & Tax Rate |
|---|---|---|---|---|
| Single-member LLC | Schedule C (Form 1040) | Form 80-105 | Mississippi Department of Revenue | April 15; 4% on income over $10,000 |
| Multi-member LLC | Form 1065 | Form 84-105 | Mississippi Department of Revenue | March 15; income passes through to partners' 4% individual rate unless the entity elects PTE |
| S-Corp election | Form 1120-S | Form 84-105 | Mississippi Department of Revenue | March 15; 4% pass-through to shareholders by default, 0%/4%/5% graduated if electing PTE, plus franchise tax |
| C-Corp election | Form 1120 | Form 83-105 | Mississippi Department of Revenue | April 15; 0%/4%/5% graduated, plus franchise tax |
| Franchise tax (corporate elections only) | n/a | Form 83-105 with the Form 83-110 schedule | Mississippi Department of Revenue | Same due date as the income tax return; $0.50 per $1,000 of capital over $100,000 for 2026, minimum $25 |
How Mississippi LLCs are taxed
Mississippi taxes an LLC the same way the IRS does by default. A single-member LLC is a disregarded entity, and a multi-member LLC is taxed as a partnership, so profit passes through to the owners' own returns before Mississippi ever sees a separate LLC return.
An LLC can override that default by filing a federal election for C-corp or S-corp status, and Mississippi follows whichever classification the IRS assigns. See our guide to filing LLC taxes for how the federal classification election works before you apply it here.
A pass-through LLC keeps its default federal treatment. It can still make Mississippi's own electing pass-through entity choice, covered later on this page, without changing how the IRS classifies it.
Mississippi state taxes by LLC type
1. Single-member LLC: Form 80-105
You report your LLC's profit and loss on your personal return, Form 80-105, due April 15. The LLC files no separate Mississippi return.
2. Multi-member LLC: Form 84-105
Your LLC files Mississippi's Form 84-105 by March 15. Partner income still flows to each owner's Form 80-105 unless you elect PTE treatment.
3. S-Corp election: Form 84-105
An LLC taxed as an S-corp also files Form 84-105 by March 15, checking the electing PTE box if you made that election. The LLC still owes Mississippi's franchise tax at the entity level.
Without a PTE election, income passes through to shareholders' Form 80-105 at Mississippi's 4% individual rate, the same as an unelected multi-member LLC.
4. C-Corp election: Form 83-105
An LLC taxed as a C-corp files Form 83-105 by April 15, matching the federal Form 1120 deadline. The corporation also owes Mississippi's franchise tax at the entity level.
For 2026, franchise tax runs $0.50 per $1,000 of capital over $100,000, with a $25 minimum, on top of how much an LLC costs in Mississippi to form and maintain. The tax is scheduled to disappear entirely in 2028 [1].
5. Mississippi income tax rate for tax year 2026
Mississippi taxes individual income above a $10,000 exemption at a flat 4% for tax year 2026, down from 4.7% in 2024 and 4.4% in 2025 under the state's phase-down law [2].
The 4% rate applies to single-member LLC owners and to partners who report their share of an unelected multi-member LLC's income on Form 80-105.
Federal taxes Mississippi LLC owners pay
Every Mississippi LLC owner taxed as a sole proprietor or partner pays federal self-employment tax at 15.3% on net earnings.
Mississippi does not add a separate state-level self-employment tax on top of it. You still owe Mississippi's own income tax on that same profit, so plan for both.
Quarterly estimated payments for the IRS and for Mississippi are both due April 15, June 15, September 15 and January 15. If your LLC has employees, register for withholding through the DOR's Taxpayer Access Point before your first payroll.
Other Mississippi taxes that may apply
1. Employer taxes
New employers pay Mississippi unemployment insurance tax at 1.00% the first year, 1.10% the second and 1.20% the third, up to a 5.4% experience rate after that. Register with the Mississippi Department of Employment Security before you hire.
2. Sales and use tax
If your LLC sells taxable goods or services, register with the DOR before you start collecting. The general Mississippi sales tax rate is 7%, though farm equipment, manufacturing machinery and light vehicles carry lower rates [3].
Mississippi pass-through entity tax (PTET) election
A partnership or S-corp LLC can elect to pay Mississippi tax at the entity level instead of passing it all through to the owners. That lets the LLC deduct the tax federally, working around the cap on owners' itemized state and local tax deductions.
File Form 84-381 any time during the tax year, or by the due date of your return, whichever is later. Once made, the election stays in place every year after until you revoke it, so you don't need to refile it annually [4].
The entity then pays tax on the same graduated schedule as a corporation: 0% on the first $5,000, 4% on the next $5,000 and 5% above $10,000. Each owner claims a credit for their share of that tax on Form 80-161 or Form 84-161.
What is deductible for a Mississippi LLC
The federal Qualified Business Income deduction under Section 199A is a federal benefit. It doesn't reduce what you owe the Mississippi DOR.
Mississippi does allow a state credit worth 25% of your federal child and dependent care credit, but only if your federal adjusted gross income is $50,000 or less. Claim it on your own Form 80-105 [5].
FAQs
Does Mississippi Have State Income Tax Withholding?
Yes, Mississippi has state income tax withholding on employee wages. New employers register with the DOR before the first payroll.
Does A Single-Member LLC Pay Mississippi Franchise Tax?
No, a default single-member LLC does not pay Mississippi franchise tax. Franchise tax only applies once an LLC elects C-corp or S-corp tax status with the IRS.
How Do I Revoke A Mississippi PTE Election?
You revoke a Mississippi PTE election by filing Form 84-381 again, following the same due-date rule as the original election. The same form handles both making and revoking the choice.
References:
- https://www.dor.ms.gov/business/corporate-income-and-franchise-tax-forms
- https://www.dor.ms.gov/individual/individual-income-tax-forms
- https://www.dor.ms.gov/business/sales-use-tax/sales-tax-rates
- https://www.dor.ms.gov/business/pass-through-entity-tax-forms
- https://www.dor.ms.gov/individual/individual-income-tax-frequently-asked-questions
Looks like my Mississippi LLC taxes are about to go from a nightmare to a manageable checklist. Thank you Jon for this.