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Statewise Business The state fee almanac for LLCs, sourced line by line.

Foreign LLC guide · South Dakota

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

SD Registered Agent.org ($199), South Dakota Registered Agent.co ($199) and Mainstay Filing ($199): our 2026 order for foreign LLC registration in South Dakota. A foreign LLC pays South Dakota $750 up front and $55 per yearly report; 45th of 50 over three years.

Entry by the Statewise Business almanac desk ·

The South Dakota schedule

45thof 50 states for foreign LLC feesOrdered from least to most expensive. All fifty rows
Foreign registration fee
$750October 2026, sdsos.gov
Report each cycle
$55Annual report
Certificate from home
RequiredRequired with the form
State fees over three years
$860The registration and two years of upkeep

Who files for you in South Dakota

Why this order: service fees across three years first, then coverage, renewal, South Dakota fit and fee clarity (methodology).

1. SD Registered Agent.org: best for an inexpensive South Dakota filing

Where we would begin$199 to register, $99 yearly after

SD Registered Agent.org opens the list: $199 plus the state fee, first agent year included, then $99 a year for the agent.

It undercuts Mainstay Filing on three-year service fees, a criterion worth 32%.

In the price

  • Registration paperwork handled
  • A year of agent service

Strengths

  • $99 yearly from year two
  • $199 to register
  • First agent year in the price

Weak points

  • No help outside this state
Visit SD Registered Agent.orgPartner link. We may earn money if you buy.

2. South Dakota Registered Agent.co: best for registering only in South Dakota

South Dakota specialist$199 to register, $99 yearly after

South Dakota Registered Agent.co holds second place: $199 plus the state fee, first agent year included, then $99 a year for the agent.

Its published prices are identical to SD Registered Agent.org's, so the two sit close together.

In the price

  • Registration paperwork handled
  • A year of agent service

Strengths

  • $99 yearly from year two
  • First agent year in the price
  • $199 to register

Weak points

  • No help outside this state
Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy.

3. Mainstay Filing: best for companies working in several states

Works anywhere$199 to register, $149 yearly after

Entry 3 is Mainstay Filing: $199 plus South Dakota's own fee, then $149 a year for the agent from year two.

Its three-year service fees are $100 above SD Registered Agent.org, and service fees carry 32% of the score.

Agent service after the free year: $149 a year in any state.

In the price

  • The registration filing, handled for you
  • The registered agent role costs nothing in year one
  • Fifty-state coverage

Strengths

  • The first agent year is included
  • One fee anywhere
  • A $199 service fee

Weak points

  • SD Registered Agent.org's agent renews $50 lower
Visit Mainstay FilingPartner link. We may earn money if you buy.

Prices in a row

#EntryYear-one priceYears two onService fees over three years
1SD Registered Agent.org$199$99/yr$397Visit SD Registered Agent.orgPartner link. We may earn money if you buy.
2South Dakota Registered Agent.co$199$99/yr$397Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy.
3Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
Each price was taken from the company's own pages on November 12, 2026. The state's $750 fee is not counted above.

The registration cost calculator

Registration fee $750, then the $55 report from year two, added to the service's prices.
3 years with SD Registered Agent.org comes to $1,257: $860 in state fees and $397 in service fees.

South Dakota among its neighbors in the rank

PositionStateThree-year foreign LLC fees
43rdNevada$775
44thOregon$825
45thSouth Dakota$860
46thTennessee$900
47thDelaware$1,000
Foreign LLC fees by state shows every state, least expensive first.

South Dakota registers foreign LLCs this way (2026)

$750 goes to the South Dakota Secretary of State together with the Application for Certificate of Authority, Foreign Limited Liability Company. The state also asks for certificate of Existence.

Afterwards it files the annual report ($55), 1st of the anniversary month.

Checklist before filing

  • Certificate of Existence.
  • The registered name and formation date from home.
  • Someone to act as registered agent in South Dakota.
  • Funds for the $750 official fee.

What skipping registration costs

Contracts already signed still hold (SDCL 47-34A-1008(b)).

Reasoning for the order

SD Registered Agent.org won on added cost over three years, which is worth 32%; South Dakota Registered Agent.co came next.

Three years with SD Registered Agent.org cost $397 in service fees, $100 less than with Mainstay Filing.

South Dakota FAQ

What does a foreign LLC pay to register in South Dakota?

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

What is the foreign registration form in South Dakota?

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

Is a certificate from the home state required?

Yes, certificate of Existence.

What does a foreign LLC owe each year?

It files the annual report for $55.

What happens if the LLC operates there unregistered?

Contracts already signed still hold (SDCL 47-34A-1008(b)).

Does a foreign LLC need a registered agent in South Dakota?

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

Who should handle the registration?

We would file with SD Registered Agent.org: the South Dakota registration at $199 with a year of agent service, then $99 yearly. Next come South Dakota Registered Agent.co and Mainstay Filing.

Keep reading

Citations for this entry

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