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State Filing Data LLC fees by state, read from the source.

Foreign LLC guide · South Dakota

South Dakota Foreign LLC Registration (2026): Fees and the 3 Best Services

South Dakota Registered Agent.co ($199), Mainstay Filing ($199) and SD Registered Agent.org ($199): that is our 2026 order for foreign LLC registration in South Dakota. State fees for a foreign LLC: $750 to register, $55 per report after that. Rank: 45th of 50.
State Filing Data research desk

Official South Dakota figures

of 50 on foreign LLC state fees

1st = least expensive. See all 50

Registration fee

$750

sdsos.gov, checked October 2026

Yearly report

$55

Annual report

Home-state certificate

Required

File it with the application

Three-year state fees

$860

Years one to three, state fees only

South Dakota: our picks

The methodology sets the order. Service fees over three years count most, then what the price covers.

Top of our list

1. South Dakota Registered Agent.co: best for one extra state

Service fee $199, renewal $99 a year

We'd start with South Dakota Registered Agent.co: registration at $199 plus state fees, agent included for year one.

Cost decides it: over three years it charges less than Mainstay Filing.

What you pay for

  • Registration filed for you
  • A year of agent service

For

  • Agent renews at $99
  • Agent included for year one
  • $199 + state fee

Against

  • Home state needs a separate agent
Visit South Dakota Registered Agent.co Partner link. We may earn money if you buy.
Widest coverage

2. Mainstay Filing: best for a second or third state

Service fee $199, renewal $149 a year

Second on our list, Mainstay Filing: a $199 service fee in any state, the first agent year included.

It costs $100 more than South Dakota Registered Agent.co across three years, and cost is our heaviest criterion.

After the free first year the agent runs $149 a year in any state.

What you pay for

  • Registration prepared and filed
  • Registered agent, free for the first year
  • Fifty-state coverage

For

  • $199 over the state fee
  • Covers all fifty states
  • Registered agent free for year one

Against

  • South Dakota Registered Agent.co's agent renews for $50 less
Visit Mainstay Filing Partner link. We may earn money if you buy.
Single state

3. SD Registered Agent.org: best for a second South Dakota option

Service fee $199, renewal $99 a year

SD Registered Agent.org is our third choice: registration at $199 plus state fees, agent included for year one.

South Dakota Registered Agent.co and this service publish identical prices.

What you pay for

  • Registration filed for you
  • A year of agent service

For

  • $199 + state fee
  • Agent included for year one
  • Agent renews at $99

Against

  • Home state needs a separate agent
Visit SD Registered Agent.org Partner link. We may earn money if you buy.

Price comparison

#ServiceYear oneFrom year twoThree-year service fees
1 South Dakota Registered Agent.co $199$99/yr$397
Visit South Dakota Registered Agent.co Partner link. We may earn money if you buy.
2 Mainstay Filing $199$149/yr$497
Visit Mainstay Filing Partner link. We may earn money if you buy.
3 SD Registered Agent.org $199$99/yr$397
Visit SD Registered Agent.org Partner link. We may earn money if you buy.

Company prices read November 12, 2026. The $750 state fee is extra in every case.

South Dakota foreign LLC cost calculator

Pick years and a service. The state side is the $750 registration and each yearly report.

Total, 3 years, South Dakota Registered Agent.co: $1,257. State $860, service $397.

South Dakota and its neighbors in the rank

RankStateThree-year foreign LLC fees
43rd Nevada$775
44th Oregon$825
45th South Dakota$860
46th Tennessee$900
47th Delaware$1,000

Foreign LLC fees by state has all fifty rows.

The South Dakota filing for out-of-state LLCs

$750 goes to the South Dakota Secretary of State with the Application for Certificate of Authority, Foreign Limited Liability Company. Bring certificate of Existence.

Later it owes the annual report ($55), 1st of the anniversary month.

What to have ready

  • Certificate of Existence.
  • Legal name plus the date the LLC was formed.
  • An in-state registered agent, which each listed service supplies.
  • The $750 state charge.

Penalties for not registering in South Dakota

Its contracts remain valid (SDCL 47-34A-1008(b)).

How we ordered the South Dakota picks

The split between South Dakota Registered Agent.co and Mainstay Filing sits in service fees over three years, which carries 35%.

Three-year service fees come to $397 with South Dakota Registered Agent.co, saving $100 against Mainstay Filing.

South Dakota questions answered

How much does it cost to register a foreign LLC in South Dakota?

$750 for the filing. Add $199 for a service.

Which form registers a foreign LLC in South Dakota?

File Application for Certificate of Authority, Foreign Limited Liability Company with the South Dakota Secretary of State.

Do I need a certificate from my home state?

Yes: certificate of Existence.

What does a foreign LLC file after registering?

The annual report, $55.

What if the LLC does business there without registering?

Its contracts remain valid (SDCL 47-34A-1008(b)).

Is a registered agent needed there?

Every LLC must name a registered agent with an in-state street address.

Who should file the registration?

South Dakota Registered Agent.co, then Mainstay Filing and SD Registered Agent.org. South Dakota Registered Agent.co leads on service fees over three years.

More for this state

Citations

  1. [August 2026] South Dakota Secretary of State, Business Services /: sdsos.gov
  2. [August 2026] South Dakota Secretary of State, Business Services /: sosenterprise.sd.gov
  3. [October 2026] South Dakota yearly filing: Annual report: fee and: sdlegislature.gov
  4. [August 2026] South Dakota report due date: sdlegislature.gov
  5. [August 2026] SDCL 47-34A-203: sdlegislature.gov
  6. [October 2026] South Dakota formation fee: Filing fee, official source: sdsos.gov
  7. [October 2026] South Dakota formation fee: Filing fee, official source: sdlegislature.gov
  8. [October 2026] South Dakota registered agent statute: sdlegislature.gov
  9. [October 2026] South Dakota Secretary of State, business services: sdsos.gov
  10. [October 2026] Foreign LLC application for Certificate of Authority: sdsos.gov
  11. [October 2026] SDCL 47-34A-1003, transacting business: sdlegislature.gov
  12. [October 2026] SDCL 47-34A-1008, effect of not registering: sdlegislature.gov
  13. [November 2026] SDCL 47-34A-1001 to 47-34A-1009, foreign limited liability companies: sdlegislature.gov
  14. [October 2026] Nevada Secretary of State, limited-liability companies: nvsos.gov
  15. [October 2026] Nevada Revised Statutes, Chapter 86: leg.state.nv.us
  16. [October 2026] Nevada Revised Statutes, Chapter 77: leg.state.nv.us
  17. [October 2026] Nevada LLC formation and registration packet: bizhub.nv.gov
  18. [October 2026] Annual list and State Business License instructions: bizhub.nv.gov
  19. [October 2026] Oregon Secretary of State, foreign LLC forms: sos.oregon.gov
  20. [October 2026] Application for Authority, form instructions: sos.oregon.gov
  21. [October 2026] Business Registry fee schedule: sos.oregon.gov
  22. [October 2026] Registered agents and service of process: sos.oregon.gov
  23. [October 2026] Oregon Revised Statutes, chapter 63: oregonlegislature.gov
  24. [October 2026] Tennessee Secretary of State, business forms and fees: sos.tn.gov
  25. [October 2026] Form SS-4233, Certificate of Authority for a foreign: sos-prod.tnsosgovfiles.com
  26. [October 2026] Tennessee Secretary of State, business FAQs: sos.tn.gov
  27. [October 2026] Form SS-4241, withdrawal or cancellation: sos-prod.tnsosgovfiles.com
  28. [October 2026] Tennessee Revised LLC Act, Public Chapter 286: publications.tnsosfiles.com
  29. [October 2026] Foreign LLC registration form: corpfiles.delaware.gov
  30. [October 2026] Delaware Code Title 6, chapter 18, subchapter IX: delcode.delaware.gov
  31. [October 2026] Delaware Code Title 6, chapter 18, subchapter XI: delcode.delaware.gov
  32. [October 2026] Division of Corporations fee schedule, August 2026: corpfiles.delaware.gov
  33. [October 2026] Alternative entity annual tax instructions: corp.delaware.gov
  34. South Dakota Registered Agent.co (pricing page), read on November 12, 2026
  35. Mainstay Filing (South Dakota service page), read on November 12, 2026
  36. SD Registered Agent.org (pricing page), read on November 12, 2026