Flat Fee Registered Agent › South Dakota
Flat-fee registered agent in South Dakota
Mainstay Filing is flat in South Dakota: $149 a year, then $149. We priced 5 other providers here: 4 show a flat price and 1 shows a teaser (ZenBusiness).
| Provider | Advertised | After year 1 | Flat or teaser? | What the page says it covers |
|---|---|---|---|---|
| Mainstay Filing | $149 | $149 | Flat | Registered agent all year; same-business-day scan of service of process; first three government mailings a year scanned free |
| IncParadise | $89 | $89 | Flat | Its state page also lists a $40/yr pre-pay special. |
| Northwest Registered Agent | $125 | $125 | Flat | 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 |
| Bizee | $149 | $149 | Flat | Compliance notifications; its address on the public record |
| LegalZoom | $249 | $249 | Flat | Alerts when mail arrives; documents scanned and uploaded; annual report reminders |
| ZenBusiness | $99 | $199 | Teaser | Document receipt, scanning and upload to a dashboard; email notifications |
Every LLC must name a registered agent with an in-state street address. Changing agents in South Dakota costs $10. Source: SDCL 59-11-6, checked October 20, 2026.
Which flat-fee registered agent is available in South Dakota?
5 of 6 providers priced for South Dakota show a flat price, from $89 a year. Mainstay Filing is $149.
Do I need an agent in South Dakota?
Every LLC must name a registered agent with an in-state street address. (SDCL 59-11-6).