Registered agent required
Yes
From sdlegislature.gov, October 2026
Registered agent guide · South Dakota
South Dakota Registered Agent Rules and Fees (2026): the Official Numbers and the 3 Best Agents
In 2026, for hiring a registered agent in South Dakota, our order is South Dakota Registered Agent.co ($99 a year), SD Registered Agent.org ($99 a year) and Mainstay Filing ($149 a year). South Dakota requires a registered agent for each LLC. Its yearly charges come to $55, number 30th of 50.
South Dakota in figures
Annual report
$55 / yr
Due date, in the state's own words: due during the entity's anniversary month. From sdlegislature.gov, October 2026
State charges over 1 year
$55
One year of the report, plus any minimum tax
Our South Dakota recommendations
Weights are listed on the method page. Three-year fees and coverage count for the most.
1. South Dakota Registered Agent.co: best for one state and one agent
$99 per year; renews at $99
South Dakota Registered Agent.co ranks number one. An in-state-only plan at $99 per year, then $99.
Mainstay Filing costs more over three years, and that criterion is worth 34% of the score.
What the price takes in
- A South Dakota address on the public record
- Legal papers are scanned and uploaded for you
In its favor
- Cheaper per year than the national pick
- Price $99, renewal $99
Against it
- Just South Dakota
- The annual report remains the owner's job
2. SD Registered Agent.org: best for a second South Dakota choice
$99 per year; renews at $99
In second place sits SD Registered Agent.org: an in-state-only plan at $99 per year, then $99.
Its prices equal South Dakota Registered Agent.co's, so the two are close.
What the price takes in
- A South Dakota address on the public record
- Legal papers are scanned and uploaded for you
In its favor
- Cheaper per year than the national pick
- Price $99, renewal $99
Against it
- Just South Dakota
- The annual report remains the owner's job
3. Mainstay Filing: best for owners who might add another state
$149 per year; renews at $149
Mainstay Filing ranks number 3. A flat $149 yearly price from a provider that serves the whole country.
That $150 difference from South Dakota Registered Agent.co over three years is what keeps it out of first place.
What the price takes in
- A registered office in South Dakota, address provided
- Scans papers served on the company the same business day, at no charge
- Scans the first three government letters each year, no charge
- Serves nonprofits, corporations, LPs and LLPs as well
In its favor
- The same price in all fifty states
- A flat $149 yearly
Against it
- $50 per year more than South Dakota Registered Agent.co
- Report filing belongs to the formation package
Prices in one place
| No. | Provider | Price per year | Renewal price | Provider fees over 3 years | |
|---|---|---|---|---|---|
| 1 | South Dakota Registered Agent.co | $99 | $99/yr | $297 | Visit South Dakota Registered Agent.coPartner link. We may earn money if you buy. |
| 2 | SD Registered Agent.org | $99 | $99/yr | $297 | Visit SD Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | Mainstay Filing | $149 | $149/yr | $447 | Visit Mainstay FilingPartner link. We may earn money if you buy. |
Every price here was read from the company's own site on November 13, 2026. South Dakota's own fees stay the same whichever agent you choose.
Upkeep cost calculator
Agent prices plus the state's recurring charges (the annual report from year 2). Formation fees are not counted.
South Dakota and the states around it in the ranking
| Place | State | Yearly state fees |
|---|---|---|
| 27th | North Dakota | $50 |
| 27th | Virginia | $50 |
| 30th | South Dakota | $55 |
| 31st | Georgia | $60 |
| 31st | Wyoming | $60 |
The complete list ranks all fifty states the same way.
The registered agent requirement in South Dakota
Every LLC must name a registered agent with an in-state street 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.
Who is allowed to serve: 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. Statute: SDCL 59-11-6.
Each year's state fees for a South Dakota LLC
What repeats: the annual report, at $55 every year, due during the entity's anniversary month. The penalty is $50.
Why the first pick is first
Service bill, years one to three decided first place in South Dakota. It is worth 34% of the score, and the other criteria are paperwork inside the price, second-year price, match to the state, state fee shown apart.
South Dakota Registered Agent.co comes to $297 in provider fees over three years, $150 less than Mainstay Filing.
Frequently asked questions
Are South Dakota LLCs obliged to keep a registered agent on file?
Yes. Every LLC must name a registered agent with an in-state street address.
Who can serve as the registered agent for South Dakota LLCs?
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.
What does registered agent service cost in South Dakota each year?
According to the ranking, $99 to $149 per year.
What state fees does an LLC pay every year?
The state collects $55 per year on our yearly measure, which is the annual report at $55 every year.
Which registered agents does this page rank?
South Dakota Registered Agent.co ($99 a year), SD Registered Agent.org ($99 a year) and Mainstay Filing ($149 a year), beginning with the first pick.
Which registered agent would you choose?
South Dakota Registered Agent.co leads and SD Registered Agent.org and Mainstay Filing follow. The deciding factor is service bill, years one to three.
Where these facts come from
- Check our statements on South Dakota Secretary of State, Business Services / against sdsos.gov, the official page, which we last read in August 2026.
- Check our statements on South Dakota Secretary of State, Business Services / against sosenterprise.sd.gov, the official page, which we last read in August 2026.
- Check our statements on South Dakota yearly filing: Annual report: fee and against sdlegislature.gov, the official page, which we last read in October 2026.
- Check our statements on South Dakota report due date against sdlegislature.gov, the official page, which we last read in August 2026.
- Check our statements on SDCL 47-34A-203 against sdlegislature.gov, the official page, which we last read in August 2026.
- Check our statements on South Dakota formation fee: Filing fee, official source against sdsos.gov, the official page, which we last read in October 2026.
- Check our statements on South Dakota formation fee: Filing fee, official source against sdlegislature.gov, the official page, which we last read in October 2026.
- Check our statements on South Dakota registered agent statute against sdlegislature.gov, the official page, which we last read in October 2026.
- Check our statements on North Dakota Secretary of State, Business Division against sos.nd.gov, the official page, which we last read in August 2026.
- Check our statements on North Dakota Secretary of State, Business Division against sos.nd.gov, the official page, which we last read in August 2026.
- Check our statements on Virginia yearly filing: Recurring filing, official source against law.lis.virginia.gov, the official page, which we last read in October 2026.
- Check our statements on Virginia yearly filing: Recurring filing, official source against scc.virginia.gov, the official page, which we last read in October 2026.
- Check our statements on Georgia Secretary of State fee schedule Rev. 8/2025 against sos.ga.gov, the official page, which we last read in October 2026.
- Check our statements on Wyoming Secretary of State, Business Division against wyobiz.wyo.gov, the official page, which we last read in August 2026.
- Check our statements on Wyoming Secretary of State, Business Division against wyobiz.wyo.gov, the official page, which we last read in August 2026.
- South Dakota Registered Agent.co lists pricing page on its own site, read November 13, 2026
- SD Registered Agent.org lists pricing page on its own site, read November 13, 2026
- Mainstay Filing lists South Dakota service page on its own site, read November 13, 2026