Skip to content
Filing MapperRoutes through every state's LLC paperwork, priced leg by leg.

Foreign LLC guide · South Dakota

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

Taking a foreign LLC registration in South Dakota as the destination, the services in 2026 line up as South Dakota Registered Agent.co ($199), Mainstay Filing ($199) and SD Registered Agent.org ($199). Crossing into South Dakota as a foreign LLC costs $750 at the South Dakota Secretary of State, with $55 due at each report checkpoint after that; the three-year toll ranks 45th of 50.

Surveyed by the Filing Mapper team

South Dakota, measured

45th

by the three-year odometer for foreign LLCs, of 50

Lowest toll, lowest number. Compare the neighbors

Entry fee for outside LLCs
$750
sdsos.gov (surveyed October 2026)
Checkpoint report
$55
Annual report
Home-state clearance
Required
Needed when you file
State toll, three years
$860
Entry in year one, checkpoints after

The South Dakota stops, ranked

The order rests on five criteria set out in the method: three-year provider cost (35%), steps covered (27%), renewal fare, fit with South Dakota rules and fee labeling.

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

First on the route$199 plus the $750 entry toll, $99/yr after

South Dakota Registered Agent.co is stop one: $199 above the state's entry fee, then $99 a year.

Its three-year provider cost is below Mainstay Filing's, and cost is our heaviest weight at 35%.

The fare covers

  • South Dakota registration drafted and filed
  • A year of agent service

On the plus side

  • A fare of $199
  • Then $99 per lap
  • A lap of agent duty is included

On the minus side

  • Stops at the state line
Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy.

2. Mainstay Filing: best for a business crossing state lines

Every state$199 plus the $750 entry toll, $149/yr after

The next stop, number 2, is Mainstay Filing: it files the South Dakota registration for $199 above the state's entry fee, and the first agent year rides along free.

A $100 gap against South Dakota Registered Agent.co across three years keeps it from the lead.

After the free first lap, agent duty costs $149 a year in any state.

The fare covers

  • The registration drafted and filed by Mainstay
  • No charge for registered agent duty while year one lasts
  • The same fare on every route

On the plus side

  • $199 above South Dakota's own fee
  • The first agent lap is covered
  • Works for your next crossing too

On the minus side

  • 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 a smaller agent renewal

One state only$199 plus the $750 entry toll, $99/yr after

Stop 3, SD Registered Agent.org: $199 above the state's entry fee, then $99 a year.

Fare for fare, it equals South Dakota Registered Agent.co.

The fare covers

  • South Dakota registration drafted and filed
  • A year of agent service

On the plus side

  • Then $99 per lap
  • A lap of agent duty is included
  • A fare of $199

On the minus side

  • Stops at the state line
Visit SD Registered Agent.orgPartner link. We may earn money if you buy.

Fares in a row

StopProviderLeg oneLater legsProvider cost, three years
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.

We read every provider's price page on November 12, 2026. Every row still needs South Dakota's $750 registration toll.

Foreign LLC route calculator

The entry fee is $750, followed by the $55 report from year two, and each provider's fares are added.

South Dakota Registered Agent.co for 3 years totals $1,257: $860 in state tolls and $397 in provider fares.

South Dakota and the stops on either side of it

MileStateThree-year foreign LLC fees
43rdNevada$775
44thOregon$825
45thSouth Dakota$860
46thTennessee$900
47thDelaware$1,000

Foreign LLC fees by state plots all fifty, least expensive first.

The South Dakota entry filing for LLCs formed elsewhere

To get in, an outside LLC files the Application for Certificate of Authority, Foreign Limited Liability Company with the South Dakota Secretary of State and pays $750. Attach certificate of Existence.

At each later stop it files the annual report ($55), 1st of the anniversary month.

Before sending the filing

  • Certificate of Existence.
  • Exact legal name and formation date from the home state.
  • A registered agent with a street address here; every provider on this route can supply one.
  • A budget for the $750 official fee.

The price of not registering

Contracts already made continue to hold (SDCL 47-34A-1008(b)).

What put the first stop first

South Dakota Registered Agent.co won the lead on three-year charge on the route, worth 35% of the total; Mainstay Filing came next.

South Dakota Registered Agent.co leads on cost, at $397 for the three-year ride and $100 short of Mainstay Filing.

South Dakota: your route questions

What does South Dakota toll a foreign LLC for entry?

$750 at the state office. Provider fares: $199.

Which form gets a foreign LLC into South Dakota?

Entry is on the Application for Certificate of Authority, Foreign Limited Liability Company, which goes to the South Dakota Secretary of State.

Does the gate ask for clearance from the home state?

It does: certificate of Existence.

Is there a yearly checkpoint for a foreign LLC?

There is: the annual report, which costs $55.

What happens when the LLC does business there without registering?

Contracts already made continue to hold (SDCL 47-34A-1008(b)).

Does a foreign LLC need to carry a registered agent for South Dakota?

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

Which provider should take my foreign LLC across?

Take South Dakota Registered Agent.co first and Mainstay Filing and SD Registered Agent.org after it; what separates South Dakota Registered Agent.co is three-year charge on the route.

Nearby routes

Survey markers for this route

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