e-SecretaryOfState.com
South Dakota
South Dakota Secretary of State - Business Services
Contact for business filings
- Phone
- 605-773-4845
- Fax
- 605-773-4550
- [email protected]
- Mail filings to
- Secretary of State, Capitol Building, 500 East Capitol Avenue, Suite 204, Pierre, SD 57501-5070
- Walk in
- Capitol Building, 500 East Capitol Avenue, Suite 204, Pierre, SD 57501 Office location
Filing facts
- Form an LLC: $150 state fee
- Register a foreign LLC: $750 state fee
- LLC annual report: $55 state fee
- Franchise tax: none.
- How you can file an LLC formation: onlineemailfaxmailwalk in
- Every South Dakota corporation and LLC must keep a registered agent with a street address in South Dakota.
Fees are the statutory amounts on file as of 2026-08-04; the state may add processing or expedite charges.