3 Best Registered Agents in South Dakota (2026): Fee Schedule
For registered agents in South Dakota, the 2026 schedules rank South Dakota Registered Agent.co ($99/yr), SD Registered Agent.org ($99/yr) and Mainstay Filing ($149/yr), in that order. The opening charge is $99 to $149, and three years of charges come to $297 to $447.
Prepared by the Agent Fee Tables editorial team ·
Schedules ordered by: Charges count 39% and duties 31% (the full order)
Summary of fees
Required by the state?Yessdlegislature.gov {fee list dated October 2026}
What the first year bills$99 to $149Charge for one agent year
Charges, three years$297 to $447Opening charge plus two renewals
Annual report$55 yearlysdlegislature.gov {fee list dated October 2026}
Break-evenDoes not occurOrder holds to year 10
South Dakota ranking
Every charge is copied from the company's own pricing page. A different agent leaves the state fee as it was.
#Opening chargeRenewal chargeCharges, three years
1
1. South Dakota Registered Agent.co: best for the smallest yearly charge
Schedule one
$99 to begin; $99 each renewal
Opening charge
$99
Renewal charge
$99/yr
Charges, three years
$297
South Dakota Registered Agent.co comes first because $99 a year and $99 at renewal, aimed at LLCs that stay in one state.
On the biggest measure, three-year charges, it beats Mainstay Filing.
The state's share is the filing, the reports in years two and three, and a minimum tax if there is one. Anything the state leaves unpriced is described, not totaled.
How the order came out
South Dakota Registered Agent.co did better than SD Registered Agent.org on charges over three years, a 39% measure.
Three years with South Dakota Registered Agent.co bill $297, against a Mainstay Filing bill that runs $150 higher.
What South Dakota requires of a registered agent (South Dakota Secretary of State), in the state's own words
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. (SDCL 59-11-6)
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.
An owner who meets the address rule can serve free of charge; the schedules above put $99 to $149 a year on the convenience.
Quick answers
What does a South Dakota registered agent charge per year?
Roughly $99 to $149 yearly.
What do three years of agent service cost?
Anywhere from $297 to $447 for three years of service.
Does the state insist that a South Dakota LLC have a registered agent?
Yes, it does. Every LLC must name a registered agent with an in-state street address.
May the owner act as the registered agent?
You can, provided you meet both the address and eligibility rules.
What does the state charge the LLC every year?
The annual report costs $55 each year, due due during the entity's anniversary month.
When does one schedule pass another in total charges?
The schedules do not cross in the first ten years.
Which registered agent is the best value in South Dakota?
By the five-part order the South Dakota schedules run South Dakota Registered Agent.co, SD Registered Agent.org and Mainstay Filing, led by South Dakota Registered Agent.co on charges over three years.