Registered agent price index · South Dakota
3 Best Registered Agents in South Dakota (2026): Price Index
Index basis: Index of five columns: three-year cost (38%), coverage per dollar (32%), renewal step, crossover year and price transparency. Basis explained
South Dakota in figures
South Dakota ledger, best value first
1. Mainstay Filing: best for one agent account for every state
Best value on the ledgerMainstay Filing takes line one of the South Dakota index: the same $149 yearly price in all fifty states.
Its three-year subtotal is $150 above SD Registered Agent.org's, and the paperwork it covers outweighs that in the index.
Line includes
- A real address in the state
- Three government mailings a year, scanned at no cost
- Serves nonprofits, corporations, LPs and LLPs along with LLCs
Credits
- $149, every year
- A single account for every state
Debits
- A yearly gap of $50
- Covers the agent role and nothing else
2. SD Registered Agent.org: best for owners who count every dollar
Single-state planNext on the ledger: SD Registered Agent.org, with a single-state agent priced at $99 a year.
Line includes
- A street address inside the state
- Online copies of anything served
Credits
- Yearly line under the national one
- $99 a year, unchanged at renewal
Debits
- A new state needs a new agent
- The price skips the annual report
3. South Dakota Registered Agent.co: best for a nearby alternative
Single-state planNext on the ledger: South Dakota Registered Agent.co, with a single-state agent priced at $99 a year.
SD Registered Agent.org publishes the same prices.
Line includes
- A street address inside the state
- Online copies of anything served
Credits
- $99 a year, unchanged at renewal
- Yearly line under the national one
Debits
- A new state needs a new agent
- The price skips the annual report
Running subtotals
| Line | Provider | Total, year 1 | Total, year 2 | Total, year 3 | Total, year 5 | |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | $149 | $298 | $447 | $745 | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | SD Registered Agent.org | $99 | $198 | $297 | $495 | Visit SD Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | South Dakota Registered Agent.co | $99 | $198 | $297 | $495 | Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy. |
Compute your subtotal
South Dakota state fees (official)
| Entry | Amount | Cited from |
|---|---|---|
| Formation filing charge | $150 | sdlegislature.gov (read October 2026) per the state |
| Annual report | $55 every year | sdlegislature.gov (read October 2026) per the state |
| If the report is late | $50 | sdlegislature.gov (read October 2026) per the state |
| Three-year state subtotal | $260 | Computed from the lines above |
Index notes
Weight 32%: coverage per dollar. That column separated the top two lines.
SD Registered Agent.org costs less here; fifty-state coverage carried more weight.
Official South Dakota registered agent requirements (South Dakota Secretary of State)
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. Law: 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.
Source text: sdlegislature.gov (read October 2026) per the state
If you file it yourself
The no-service choice costs nothing extra for an eligible owner. What the lines above sell is time, at $99 to $149 a year.
Questions about South Dakota prices
How much does a South Dakota registered agent charge each year?
Expect $99 to $149 a year.
What do three years of agent service cost?
Year one plus two renewals comes to $297 to $447.
Does South Dakota require a registered agent for every LLC?
Yes. Every LLC must name a registered agent with an in-state street address.
May I serve as my own registered agent?
Yes, provided you qualify under the rules above.
What does the state collect from the LLC every year?
After formation, South Dakota expects the annual report at $55 every year, due during the entity's anniversary month.
When does one line pass another in total cost?
Not within ten years; no line overtakes another.
Which registered agent indexes best in South Dakota?
By our value index, the South Dakota lines run Mainstay Filing, SD Registered Agent.org and South Dakota Registered Agent.co. Mainstay Filing leads on coverage per dollar.
Source lines
- August 2026 confirmation of South Dakota Secretary of State at sdsos.gov.
- August 2026 confirmation of South Dakota Secretary of State at sosenterprise.sd.gov.
- October 2026 confirmation of South Dakota yearly filing: Annual at sdlegislature.gov.
- August 2026 confirmation of South Dakota report due date at sdlegislature.gov.
- August 2026 confirmation of SDCL 47-34A-203 at sdlegislature.gov.
- October 2026 confirmation of South Dakota formation fee: Filing at sdsos.gov.
- October 2026 confirmation of South Dakota formation fee: Filing at sdlegislature.gov.
- October 2026 confirmation of South Dakota registered agent statute at sdlegislature.gov.
- November 13, 2026 reading of the Mainstay Filing South Dakota service page
- November 13, 2026 reading of the SD Registered Agent.org pricing page
- November 13, 2026 reading of the South Dakota Registered Agent.co pricing page