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The Founders Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Review · South Dakota

SD Registered Agent.org Review (2026)

SD Registered Agent.org sells South Dakota registered agent service at $99 a year, the same $99 at renewal; the price covers a registered office street address in the state and online scans of served legal documents. It can form the LLC too, for $199 plus state fees. For foreign registration it charges $199 plus the state fee. Best for founders who will stay in South Dakota and handle their own annual report.

Written by The Founders Review editorial team

Verdict

SD Registered Agent.org

SD Registered Agent.org: best for a South Dakota-only company

$99 a year, the same at renewal
Our mark9.2out of 10

Solid and simple: a South Dakota address and document scans at a low price.

What you get

  • South Dakota street address for your registered office
  • Scans of served documents, online

Why pick it

  • Flat $99 a year
  • Costs less than Mainstay Filing each year
  • LLC formation and foreign registration from the same company
  • Formation includes year one of agent service

Less good

  • No annual report filing
  • Charges $99 for the EIN application
  • Other states need a separate agent
Visit SD Registered Agent.orgPartner link. We may earn money if you buy.

What you get for $99 a year

The plan is simple: a South Dakota street address for the registered office and scans of served papers, for $99 a year. Renewal is the same $99.

Forming a South Dakota LLC with SD Registered Agent.org

SD Registered Agent.org prepares and files the Articles of Organization for $199 plus South Dakota's $150 filing fee. The first year of registered agent service is included, then the agent is $99 a year. An EIN application is a $99 add-on; the IRS issues EINs for free.

The annual report ($55 state fee) is yours to file every year.

Registering an out-of-state company in South Dakota

For a company formed elsewhere, SD Registered Agent.org files the Application for Certificate of Authority, Foreign Limited Liability Company with the South Dakota Secretary of State for $199 plus the state's $750 fee. A year of registered agent service comes with it. You supply certificate of Existence.

How it compares on our South Dakota pages

SD Registered Agent.org saves $150 over three years against Mainstay Filing ($297 vs $447). Mainstay's agent plan is national and scans the first three government mailings a year free. Against Mainstay Filing ($199 a year), SD Registered Agent.org's LLC package totals $397 over three years. On our South Dakota pages it sits near South Dakota Registered Agent.co, which charges the same $99.

SD Registered Agent.org, answered

How much does SD Registered Agent.org cost?

$99 a year for its registered agent service, and the same at renewal. LLC formation is $199 plus the South Dakota filing fee.

Does SD Registered Agent.org file my annual report?

No. Filing the South Dakota annual report is not part of its published prices.

Is SD Registered Agent.org a good registered agent for a South Dakota LLC?

Yes, if the company will stay in South Dakota. Its average score across our South Dakota pages is 9.2.

What does SD Registered Agent.org include?

A South Dakota registered office address plus scans of served documents.

Can SD Registered Agent.org register my out-of-state company in South Dakota?

Yes. It files the registration for $199 plus South Dakota's fee, with a year of agent service included.

See also

Where the facts come from

  1. October 2026 check of South Dakota registered agent statute: sdlegislature.gov/Statutes/59-11-6
  2. August 2026 check of South Dakota Secretary of State, Business Services / Corporations Division: sdsos.gov/docs/business/llc-domestic-annualreport.pdf
  3. August 2026 check of South Dakota Secretary of State, Business Services / Corporations Division: sosenterprise.sd.gov/BusinessServices/Business/AnnualReportInstr.aspx
  4. October 2026 check of South Dakota yearly filing: Annual report: fee and how, official source: sdlegislature.gov/api/Statutes/59-11-24.html
  5. August 2026 check of South Dakota report due date: sdlegislature.gov/Statutes/47-34A-211
  6. August 2026 check of SDCL 47-34A-203: sdlegislature.gov/Statutes/47-34A-212
  7. October 2026 check of South Dakota formation fee: Filing fee, official source: sdsos.gov/general-information/filing-fees.aspx
  8. October 2026 check of South Dakota formation fee: Filing fee, official source: sdlegislature.gov/api/Statutes/47-34A-212.html
  9. October 2026 check of South Dakota Secretary of State, business services: sdsos.gov/business-services/corporations/contact.aspx
  10. October 2026 check of Foreign LLC application for Certificate of Authority: sdsos.gov/docs/business/foreignllccertificateofauthority20180215.pdf
  11. October 2026 check of SDCL 47-34A-1003, transacting business: sdlegislature.gov/api/Statutes/47-34A-1003.html
  12. October 2026 check of SDCL 47-34A-1008, effect of not registering: sdlegislature.gov/api/Statutes/47-34A-1008.html
  13. November 2026 check of SDCL 47-34A-1001 to 47-34A-1009, foreign limited liability companies: sdlegislature.gov/Statutes/47-34A-1002
  14. Home, pricing and service pages of SD Registered Agent.org, read November 12, 2026
  15. South Dakota service pages of Mainstay Filing, read November 12, 2026