Mississippi charges $50 to form an LLC; South Dakota charges $150. Day-one sticker price is only part of the story, since most of the real cost comes from the annual obligations that stack up each year you keep the LLC open.

Over a rolling three-year window, Mississippi runs about $265 less in total state fees than South Dakota. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

On speed, South Dakota typically clears standard online filings faster than Mississippi. Both states offer expedited tiers at an additional cost for filers on tight timelines.

For most small operators the choice is not really between these two states at all. It is between forming where the business actually operates and trying to route through a non-resident filing. The data below shows what each option actually costs.

Formation filing fee
Mississippi $50
South Dakota $150
Mississippi saves $100
Year 1 total estimate
Mississippi $150
South Dakota $305
Mississippi saves $155
Ongoing per year
Mississippi $100
South Dakota $155
Mississippi saves $55
3-year total
Mississippi $350
South Dakota $615
Mississippi saves $265

Key differences at a glance

  • Mississippi costs $100 less to form ($50 vs $150).
  • Mississippi is $55 per year cheaper to maintain ($100 vs $155).
  • South Dakota has no state individual income tax; pass-through LLC income flows to members without a state layer. The other state does tax at the member level.

Where each state fits

For most filers, forming in the state you actually operate from is the right call. The side-by-side below shows where the two states meaningfully diverge.

What each state offers that the other does not

Only South Dakota

  • Paid expedited tier
  • No state income tax

Both states

  • Online filing
  • No entity-level franchise or LLC tax
  • No publication requirement
  • Operating agreement not statutorily required

Three-year cost, side by side

Rough estimate of the state-facing cost to form and keep an LLC through three years. Both totals include a $100 per year registered-agent estimate.

Mississippi South Dakota
Year 1
$150
$305
Year 2
$250
$460
Year 3
$350
$615

Running total includes the one-time filing fee and annual ongoing costs (report fee or franchise tax plus a $100/year registered agent estimate).

What it costs under your specific situation

The table below runs the same LLC through four common scenarios. "Non-resident" rows assume a typical home-state foreign LLC registration adds about $200 per year of stacked cost; the real number depends on which state you live in and ranges from $50 to over $800 depending on jurisdiction.

Scenario Year 1 Each year after 3-year total
You live in Mississippi, business operates there
No foreign LLC registration needed. You pay Mississippi fees only.
$150 $100 $350
You live in South Dakota, business operates there
No foreign LLC registration needed. You pay South Dakota fees only.
$305 $155 $615
Non-resident forming in Mississippi with operations elsewhere
You pay Mississippi's fees plus a typical home-state foreign LLC registration of about $200 per year.
$350 $300 $950
Non-resident forming in South Dakota with operations elsewhere
You pay South Dakota's fees plus a typical home-state foreign LLC registration of about $200 per year.
$505 $355 $1,215

Mississippi vs South Dakota: full comparison

Dimension Mississippi South Dakota
Online filing
Can you file the formation document online?
Yes Yes
Online approval time
Standard, non-expedited
2 business days 1 business day
Expedited option
Paid fast-track filing
Not offered $50
Annual report
Required in addition to tax
Required, $0 Required, $55
State-imposed annual tax
Franchise, privilege, or LLC tax minimum
None None
State income tax
On pass-through LLC income at member level
Yes No
Publication requirement
Newspaper publication after formation
No No
Operating agreement
Required by state statute
Recommended, not required Recommended, not required
Foreign LLC fee
Cost to register as a foreign LLC in this state
$250 $750
State sales tax
General statewide rate
7.0% 4.2%

Taxes in Mississippi and South Dakota

How each state handles entity-level tax on LLCs. Pass-through classification means member-level income tax also applies at each member's residence state.

Mississippi tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 5.0%.

South Dakota tax

No entity-level franchise tax on LLCs. No state income tax.

Ongoing compliance

The recurring filings each state requires after formation.

Mississippi

Annual report $0, due 04/15 each year. Registered agent required in Mississippi.

South Dakota

Annual report $55, due on your anniversary month. Registered agent required in South Dakota.

Formation process, side by side

What actually happens from the moment you start filing to the moment you're in good standing. Use this as a checklist.

Mississippi

  1. Check business-name availability on the Mississippi entity search.
  2. Appoint a registered agent with a physical Mississippi street address.
  3. File Mississippi LLC Certificate of Formation (Form F0100) for $50.
  4. Wait for approval. Online typically 2 business days. No paid expedite offered.
  5. Adopt an operating agreement (recommended, not required by Mississippi statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $0 when it comes due.

South Dakota

  1. Check business-name availability on the South Dakota entity search.
  2. Appoint a registered agent with a physical South Dakota street address.
  3. File Articles of Organization (Domestic Limited Liability Company) for $150.
  4. Wait for approval. Online typically 1 business days. Paid expedite from $50.
  5. Adopt an operating agreement (recommended, not required by South Dakota statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $55 when it comes due.

Before you pick either state

A few things that apply no matter which state you choose. These trip up enough first-time filers that they're worth stating explicitly.

Registered agent is non-negotiable. Both Mississippi and South Dakota (and every other US state) require every LLC to designate a registered agent with a physical street address in the state of formation. You can serve as your own agent if you live in the state; otherwise a commercial agent runs $50 to $125 per year. Using your own home address makes it part of the public record.

Forming elsewhere does not escape your home state's tax. If you live and operate a business from your home state, forming the LLC in Mississippi or South Dakota does not avoid your home state's income tax. The moment you transact business at home, your home state requires a foreign LLC registration, and state tax liability follows your residence regardless of where the entity sits on paper.

EIN applications are free. The IRS issues Employer Identification Numbers directly at no cost. Any service charging you to "get your EIN" is reselling a free form submission. Single-member LLCs with no employees technically don't need one for federal tax, but nearly every bank requires an EIN to open a business account.

Operating agreement matters more than the state you pick. A well-drafted operating agreement governs member ownership, management, profit splits, buy-sell terms, and dissolution. Without one, your LLC runs on the state's default rules, which are rarely what you want. California, Maine, Missouri, and New York require a written one by statute; every other state treats it as strongly recommended.

Agency contacts

Mississippi Secretary of State, Business Services Division

Website
www.sos.ms.gov/business-services-regulation
Phone
(601) 359-1633
Email
CustomerService@sos.ms.gov
Mail
P.O. Box 136, Jackson, MS 39205-0136
Office
660 North Street, Jackson, MS 39201
Hours
8:00 AM to 5:00 PM Central, Monday to Friday

South Dakota Secretary of State - Business Services

Website
sdsos.gov
Phone
(605) 773-4845
Email
corpinfo@state.sd.us
Mail
Capitol Building, 500 East Capitol Avenue, Suite 204, Pierre, SD 57501-5070
Office
215 E. Prospect Avenue, Pierre, SD 57501
Hours
8:00 AM to 5:00 PM Central, Monday to Friday

Mississippi Department of Revenue

Website
www.dor.ms.gov
Phone
(601) 923-7700
Mail
P.O. Box 1033, Jackson, MS 39215-1033
Office
500 Clinton Center Drive, Clinton, MS 39056
Hours
8:00 AM to 5:00 PM Central, Monday to Friday

South Dakota Department of Revenue

Website
dor.sd.gov
Phone
(605) 773-3311
Mail
445 E Capitol Avenue, Pierre, SD 57501
Hours
8:00 AM to 5:00 PM Central, Monday to Friday

Frequently Asked Questions

  • Is it cheaper to form an LLC in Mississippi or South Dakota?

    Mississippi is cheaper at formation ($50) than South Dakota ($150). Ongoing costs are also different: $100 vs $155 per year. Total over three years: $350 vs $615.

  • Can I form an LLC in Mississippi if I live in South Dakota?

    Yes, but your South Dakota business will almost certainly need to register as a foreign LLC in South Dakota too, which means paying South Dakota's foreign registration fee and any ongoing South Dakota obligations on top of the Mississippi ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.

  • How long does it take to form an LLC in Mississippi vs South Dakota?

    Mississippi online: 2 business days; South Dakota online: 1 business day. Mississippi does not offer paid expedite. South Dakota offers paid expedite from $50.

  • Which state has lower taxes for an LLC, Mississippi or South Dakota?

    Mississippi: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. South Dakota: no state income tax, no entity-level franchise or LLC tax.

  • Do both states require a registered agent?

    Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Mississippi and South Dakota both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.

  • Which state should I pick if I run an online business from home?

    Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Mississippi or South Dakota to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Full state guides

More Mississippi and South Dakota comparisons

Sources

  • Filing fee: www.sos.ms.gov/content/documents/Business/FeeSchedule.pdf · verified April 21, 2026
    Mississippi Secretary of State Business Documents Filing Fees schedule: F0100 MS LLC Certificate of Formation $50. Foreign LLC F0200 Application for Registration $250. Mississippi requires online filing for LLC formation through the Corporations portal.
  • Expedited filing: www.sos.ms.gov/content/documents/Business/FeeSchedule.pdf · verified April 21, 2026
    Mississippi Secretary of State does not publish a paid expedited tier for LLC Certificate of Formation filings. Online filings are typically processed within 1-2 business days, which serves as the default fast pathway.
  • Annual report fee: www.sos.ms.gov/content/documents/Business/FeeSchedule.pdf · verified April 21, 2026
    Mississippi SoS Fee Schedule: F0108 MS LLC Annual Report $0 (domestic). F0208 Foreign LLC Annual Report $250. All annual reports must be filed online through the Corporations portal. Deadline is April 15 each year per the SoS Annual Reports page.
  • Sales tax rate: www.dor.ms.gov/business/sales-and-use-tax · verified April 21, 2026
    Mississippi Department of Revenue: general statewide sales and use tax rate is 7 percent (Miss. Code Ann. Section 27-65-17). Only a small number of municipalities impose an additional local sales tax.
  • Corporate income tax rate: taxfoundation.org/data/all/state/state-corporate-income-tax-rates-brac… · verified April 21, 2026
    Mississippi top corporate income tax rate is 5 percent on taxable income over $10,000 under Miss. Code Ann. Section 27-7-5. Graduated: 4 percent on $5,000-$10,000, 5 percent above $10,000. First $5,000 is not taxed after 2022 repeal of the 3 percent bracket.
  • Foreign LLC registration fee: www.sos.ms.gov/content/documents/Business/FeeSchedule.pdf · verified April 21, 2026
    Mississippi SoS Fee Schedule: F0200 Application for Registration of Foreign Limited Liability Company $250.
  • Operating agreement requirement: law.justia.com/codes/mississippi/title-79/chapter-29/article-1/section… · verified April 21, 2026
    Mississippi Limited Liability Company Act (Miss. Code Ann. Section 79-29-123) permits but does not require a written operating agreement. Oral and implied agreements are recognized. No statutory mandate to adopt or file an operating agreement.
  • Filing fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
    SD SoS filing fee schedule: Domestic LLC Articles of Organization filed electronically online is $150; filed via paper is $165 (includes the $15 paper filing fee). Online is the default; filingFee captures the online amount.
  • Expedited filing: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
    SD SoS offers expedited processing for any filing at an additional $50 flat fee, defined as completion sooner than the normal course of business on request. Typical expedited turnaround is 24 hours.
  • Foreign LLC registration fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
    Foreign LLC Certificate of Authority online filing fee is $750; paper is $765 (includes $15 paper filing fee). This is materially higher than the $150 domestic fee; South Dakota is one of the most expensive states for foreign LLC registration.
  • Operating agreement requirement: sdlegislature.gov/Statutes/47-34A · verified April 21, 2026
    SDCL 47-34A (Uniform Limited Liability Company Act) defines an operating agreement under 47-34A-103 as any valid agreement, written or oral, governing relations among members, managers, and the LLC. The statute does not require the operating agreement to be in writing.
  • Publication requirement: sdlegislature.gov/Statutes/47-34A · verified April 21, 2026
    SDCL 47-34A contains no newspaper publication requirement for LLC formation. Only NY, AZ, and NE require publication.
  • Annual report fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
    SD SoS filing fee schedule: LLC Annual Report filed electronically online is $55; filed via paper is $70 (includes the $15 paper filing surcharge). Due first day of the anniversary month each year.
  • Franchise tax: dor.sd.gov/businesses/taxes/ · verified April 21, 2026
    SD Department of Revenue confirms South Dakota does not impose a general corporate income tax or franchise tax. A narrow bank franchise tax applies only to financial institutions under SDCL 10-43.
  • Corporate income tax rate: dor.sd.gov/businesses/taxes/ · verified April 21, 2026
    South Dakota has no corporate income tax. Field set to null.
  • Sales tax rate: dor.sd.gov/businesses/taxes/sales-use-tax/ · verified April 21, 2026
    SD Department of Revenue: the state sales and use tax rate is 4.2%. Municipalities may impose up to 2% additional general sales tax.
  • Business name search: sosenterprise.sd.gov/BusinessServices/Business/FilingSearch.aspx · verified April 21, 2026
    SD SoS Enterprise business information search. Use before filing Articles of Organization to confirm name availability.
  • Online filing portal: sosenterprise.sd.gov/BusinessServices/Business/RegistrationInstr.aspx · verified April 21, 2026
    SD SoS Enterprise online business registration portal. Online LLC filings are typically approved immediately or within one business day; paper filings take about 3-5 business days plus mail transit.
  • Certificate of Formation form: sdsos.gov/docs/business/llc-domestic-articlesoforganization.pdf · verified April 21, 2026
    Official Domestic LLC Articles of Organization fillable PDF published by the SD SoS, used for paper filings.