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Foreign LLC guide · South Dakota

South Dakota Foreign LLC Fees (2026): Data on File and the 3 Best Services

Short answer, South Dakota 2026, a foreign LLC registration: South Dakota Registered Agent.co ($199), Mainstay Filing ($199) and SD Registered Agent.org ($199). South Dakota takes $750 from a foreign LLC and then $55 on every report; that is 45th of 50 across three years.

Desk note by LLC Data Desk ·

South Dakota: state side

45thof 50, foreign LLC state costSmallest total ranks first. Full 50-state sheet
Fee to register
$750Basis: sdsos.gov, October 2026
Report
$55Annual report
Home-state certificate
RequiredFiled with the application
Total owed to the state, 3 yrs
$860Registration fee plus two years of reports

Services ranked for South Dakota

Five criteria set the order; three-year fees and filings covered weigh most (method has the rest).

1. South Dakota Registered Agent.co: best for a low-cost South Dakota filing

Our #1Service $199; yr 2+ $99

Top spot, South Dakota Registered Agent.co. Registration $199 plus state fees; agent covered in year one.

It undercuts Mainstay Filing over three years; cost is 31% of the score.

What the fee covers

  • Registration filing prepared for you
  • A year of agent service

Pros

  • $199 and the state fee
  • $99 a year for the agent after
  • Agent covered in year one

Cons

  • One state only
Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy.

2. Mainstay Filing: best for a later third or fourth state

Widest reachService $199; yr 2+ $149

Mainstay Filing takes second: $199 service fee in any state; year-one agent service costs nothing.

South Dakota Registered Agent.co beats it by $100 on three-year service fees.

Year two on, the agent costs $149 a year in every state.

What the fee covers

  • Registration filed on your behalf
  • Registered agent: no fee in year one
  • Same fee in every state

Pros

  • $199 over the state fee
  • Same fee in every state
  • Agent service free for a year

Cons

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

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

South Dakota specialistService $199; yr 2+ $99

We rank SD Registered Agent.org third. Reason: registration $199 plus state fees; agent covered in year one.

Ties with South Dakota Registered Agent.co on price.

What the fee covers

  • Registration filing prepared for you
  • A year of agent service

Pros

  • $99 a year for the agent after
  • $199 and the state fee
  • Agent covered in year one

Cons

  • One state only
Visit SD Registered Agent.orgPartner link. We may earn money if you buy.

3 services, side by side

#ServiceYr 1Yr 2+Service fees, 3 yrs
1South Dakota Registered Agent.co$199$99/yr$397Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
3SD Registered Agent.org$199$99/yr$397Visit SD Registered Agent.orgPartner link. We may earn money if you buy.
All fees here were pulled November 12, 2026 from the companies' sites. The $750 state fee is not in any row.

Run the numbers

Registration fee $750, report $55 from year two; service fees are added.
3 years with South Dakota Registered Agent.co totals $1,257: $860 to the state, $397 to the service.

South Dakota next to nearby ranks

RkStateThree-year foreign LLC fees
43rdNevada$775
44thOregon$825
45thSouth Dakota$860
46thTennessee$900
47thDelaware$1,000
Other states: Foreign LLC fees by state.

How South Dakota registers foreign LLCs (2026)

An outside LLC registers by sending the Application for Certificate of Authority, Foreign Limited Liability Company and $750 to the South Dakota Secretary of State. Application needs certificate of Existence.

Then each cycle the annual report ($55), 1st of the anniversary month.

Have ready

  • Certificate of Existence.
  • Home-state legal name and formation date.
  • A registered agent in the state, supplied by every pick.
  • Payment of the $750 state fee.

If you never register

Contracts stay valid (SDCL 47-34A-1008(b)).

Basis for the order

Deciding criterion for South Dakota: service bill over three years, at 31%.

Leads on cost: $397 over three years, $100 beneath Mainstay Filing.

South Dakota FAQ

Fee for a foreign LLC to register in South Dakota?

$750 at the state office. Service fees: $199.

Foreign registration form for South Dakota?

Use the Application for Certificate of Authority, Foreign Limited Liability Company; it goes to the South Dakota Secretary of State.

Home-state certificate required?

Yes: certificate of Existence.

Anything due yearly from a foreign LLC?

Yes, the annual report, fee $55.

What if the LLC works there unregistered?

Contracts stay valid (SDCL 47-34A-1008(b)).

South Dakota: a registered agent for a foreign LLC?

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

Which service do you pick for foreign registration?

Pick South Dakota Registered Agent.co: $199 plus the state fee, first agent year included, then $99 a year for the agent. Next: Mainstay Filing and SD Registered Agent.org.

More from this state

Basis for this page

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