Registered Agent Compared › South Dakota
Registered agents in South Dakota, compared (2026)
South Dakota requires every LLC to have a registered agent. Of the 6 providers with a published price here, Mainstay Filing is our best overall pick at $149 a year, flat. The state’s own fee to change agents is $10.
- South Dakota rules checked October 20, 2026
- Provider pages read October 2026
The South Dakota line-up
| Provider | How it charges | What its page lists | Fine print |
|---|---|---|---|
| Mainstay Filing | Same price every year | Registered agent in any state, all year; Mail and legal-document scanning and forwarding; Compliance reminders and stored documents | $149 a year, same at renewal |
| IncParadise | Same price every year | Not itemized on its page | Its state page also lists a $40/yr pre-pay special. |
| ZenBusiness | Introductory price, higher at renewal | Document receipt, scanning and upload to a dashboard; email notifications | $99 plus state fees for the first year, then $199/yr. |
| LegalZoom | Same price every year | Alerts when mail arrives; documents scanned and uploaded; annual report reminders | Price for first-time agent customers. Auto-renews at the purchase rate; LegalZoom says the renewal rate is subject to change. |
| Northwest Registered Agent | Same price every year | Its address on public filings; scans of state and legal mail; up to 5 pieces of other business mail scanned free a year; domain, website, email and phone line | Its page says the price has not gone up in 20 years. $100/yr per state for five or more states. |
| Bizee | Same price every year | Compliance notifications; its address on the public record | Standalone price. The first year is free when you form your company through Bizee. |
South Dakota agent rules
- Requirement
- Required. 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.
- Address
- 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.
- Change-of-agent fee
- $10
- Statute
- SDCL 59-11-6
Questions
Which registered agents serve South Dakota?
6 providers have a published price for South Dakota, including Mainstay Filing (best overall): Mainstay Filing, IncParadise, ZenBusiness, LegalZoom, Northwest Registered Agent and Bizee.
Do I need a registered agent in South Dakota?
Yes. 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.
Where must the agent be located in South Dakota?
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.
What does it cost to change agents in South Dakota?
The state charges $10 to file the change (SDCL 59-11-6).
Sources
- South Dakota registered agent statute (SDCL 59-11-6): sdlegislature.gov/Statutes/59-11-6, checked October 20, 2026
- South Dakota Secretary of State: sdsos.gov/, checked October 20, 2026
- Provider registered agent pages (features and pricing model), checked October 20, 2026