First LLC Guide › South Dakota
Starting an LLC in South Dakota: what you should know first
Filing a South Dakota LLC costs $150. The Annual Report costs $55 a year. Our pick is Mainstay Filing; $857 covers three years.
By kind of owner
- Side hustle
- Quiet-year cost: $254 in year 2 with Mainstay Filing, including the $55 state report in that year.
- Online business
- Required registered agent. The address has to be an actual street address or rural route box number in South Dakota, plus a South Dakota mailing address if it differs.
- Startup
- Filing: Articles of Organization with the South Dakota Secretary of State. Write the operating agreement before you open the bank account.
- First-time owner
- Report due: Due during the entity's anniversary month each year.
Questions
Best LLC formation service in South Dakota for a first-time owner?
Mainstay Filing: $349 in year 1 including the $150 filing fee, $254 in year 2.
Sources
- SDCL 47-34A-203 (articles of organization); fee set by SDCL 47-34A-212 (multira state research spine): sdlegislature.gov/Statutes/47-34A-212, checked August 12, 2026
- South Dakota formation fee: Filing fee, official source read 2026-10-01: sdsos.gov/general-information/filing-fees.aspx, checked October 1, 2026
- South Dakota formation fee: Filing fee, official source read 2026-10-01: sdlegislature.gov/api/Statutes/47-34A-212.html, checked October 1, 2026
- South Dakota Secretary of State, Business Services / Corporations Division (multira state research spine): sdsos.gov/docs/business/llc-domestic-annualreport.pdf, checked August 12, 2026
- South Dakota Secretary of State, Business Services / Corporations Division (multira state research spine): sosenterprise.sd.gov/BusinessServices/Business/AnnualReportInstr.aspx, checked August 12, 2026
- South Dakota yearly filing: Annual report: fee and how, official source read 2026-10-01: sdlegislature.gov/api/Statutes/59-11-24.html, checked October 1, 2026
- South Dakota report due date (multira state research spine, due dates verified 714/714): sdlegislature.gov/Statutes/47-34A-211, checked August 12, 2026
- South Dakota registered agent statute (SDCL 59-11-6): sdlegislature.gov/Statutes/59-11-6, checked October 20, 2026