Foreign LLC Filing › South Dakota
Filing a foreign LLC in South Dakota
To file a foreign LLC in South Dakota, send Application for Certificate of Authority, Foreign Limited Liability Company and the $750 fee to the South Dakota Secretary of State, with a home-state certificate.
The filing packet
| Item | South Dakota requirement | Note |
|---|---|---|
| Application | Application for Certificate of Authority, Foreign Limited Liability Company | Download from the office |
| Filing fee | $750 | Paid to the state |
| Home-state certificate | Certificate of Existence | Order from the home state first |
| Registered agent | A registered agent with a South Dakota street address | Named on the application |
Where it goes
- Receiving office
- South Dakota Secretary of State
- Application
- Application for Certificate of Authority, Foreign Limited Liability Company
- Fee
- $750
Paying for it
The $750 is the whole state charge for the filing.
Best 3 Foreign Registration Services in South Dakota (2026)
A service can assemble and send this packet. For South Dakota these are the three we would choose.
1. Mainstay Filing
$199 + $750 state fee = $949
Registered agent free for the first year, then $149 a year.
2. SD Registered Agent.org
$199 + $750 state fee = $949
Registered agent included for the first year, then $99 a year.
3. South Dakota Registered Agent.co
$199 + $750 state fee = $949
Registered agent included for the first year, then $99 a year.
Service prices read from each provider’s South Dakota page on October 28, 2026. The state fee is the official figure below and is paid to the South Dakota Secretary of State.
South Dakota filing questions
Where do I file a foreign LLC in South Dakota?
With the South Dakota Secretary of State. Its filing page is linked in the table above.
What do I attach to the South Dakota filing?
Certificate of Existence, with Application for Certificate of Authority, Foreign Limited Liability Company.
What does the South Dakota filing cost?
$750 to the state. A filing service adds its own $199.
Sources
- Filing fee schedule: sdsos.gov/general-information/filing-fees.aspx, checked October 8, 2026
- Foreign LLC application for Certificate of Authority: sdsos.gov/docs/business/foreignllccertificateofauthority20180215.pdf, checked October 8, 2026
- South Dakota Secretary of State, business services: sdsos.gov/business-services/corporations/contact.aspx, checked October 8, 2026
- SDCL 47-34A-1003, transacting business: sdlegislature.gov/api/Statutes/47-34A-1003.html, checked October 8, 2026
- SDCL 47-34A-1008, effect of not registering: sdlegislature.gov/api/Statutes/47-34A-1008.html, checked October 8, 2026