Registered Agent Reviewed › South Dakota
How to check a registered agent in South Dakota
Mainstay Filing is our pick in South Dakota at $149 a year. To check any agent here: look it up in the South Dakota Secretary of State listing of commercial registered agents, confirm a South Dakota street address, then apply the five criteria.
The South Dakota rule
Every LLC must name a registered agent with an in-state street address. A commercial registered agent listed with the state, a noncommercial agent (an individual or entity with a South Dakota address), or the title of an office in the company. 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. Changing agents costs $10. Source: SDCL 59-11-6, checked October 20, 2026.
Providers reviewed in South Dakota
- Mainstay Filing $149 a year, same at renewal.
- IncParadise $89, same afterwards
- ZenBusiness $99, then $199
- LegalZoom $249, same afterwards
- Northwest Registered Agent $125, same afterwards
- Bizee $149, same afterwards
How do I check a registered agent in South Dakota?
The statute (SDCL 59-11-6) describes a listing for commercial registered agents with the South Dakota Secretary of State, so look the agent up there. The address on the filing has to be an in-state street address.
Do I need a registered agent in South Dakota?
Every LLC must name a registered agent with an in-state street address. (SDCL 59-11-6).