South Dakota state charges, charted
30th
of 50 states on the yearly state bill
Our South Dakota chart of providers
Criteria and weights behind this order are on the
method page.
Our pick
1. South Dakota Registered Agent.co: best for the smallest flat agent charge
$99 per year; $99 once it renews
Why South Dakota Registered Agent.co is placed first: $99 per year with no change at renewal, a good fit for a company that stays put.
Mainstay Filing costs more over three years, and that criterion counts for 36%.
Price covers
- A real office in South Dakota
- Scanned copies of legal notices appear online
Upside
- Beneath Mainstay Filing on yearly price
- $99 yearly, no increase
Downside
- One-state service
- Annual report stays with you
Anywhere you file
2. Mainstay Filing: best for companies with more than one state
$149 per year; $149 once it renews
Placed second, Mainstay Filing offers one agent price of $149 across all fifty states keeps a multi-state company to one bill.
South Dakota Registered Agent.co comes in $150 lower across three years, which is why it is placed higher.
Price covers
- A genuine street address inside the state
- Court papers or notices served on the company are scanned the same business day, with no fee
- Mail from government offices is scanned free, up to three pieces each year
- Not just for LLCs: corporations, LPs, LLPs and nonprofits can use it
Upside
- Flat $149/yr
- Any state, one price
Downside
- South Dakota Registered Agent.co charges $50 less per year
- Reports are yours to file under this plan
Home-state option
3. SD Registered Agent.org: best for South Dakota businesses that stay put
$99 per year; $99 once it renews
Just behind comes SD Registered Agent.org, where $99 per year with no change at renewal, a good fit for a company that stays put.
It ties with South Dakota Registered Agent.co on price.
Price covers
- A real office in South Dakota
- Scanned copies of legal notices appear online
Upside
- Beneath Mainstay Filing on yearly price
- $99 yearly, no increase
Downside
- One-state service
- Annual report stays with you
3 providers, side by side
All prices here are as the companies showed them on November 12, 2026. State fees do not move when the agent changes.
South Dakota agent budget calculator
Each agent's price is added to the state charges that repeat (the annual report from year two). The formation fee is not part of the total.
South Dakota and the states beside it on the chart
The registered agent requirement here
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.
Eligible agents: 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. Legal source: SDCL 59-11-6.
Yearly state fees on a South Dakota LLC
The state writes to your registered agent about the annual report, which costs $55 every year and is due due during the entity's anniversary month.
What put the first pick first
South Dakota Registered Agent.co wins on service cost across three years, worth 36% of the total; Mainstay Filing follows.
South Dakota Registered Agent.co totals $297 over three years, which is $150 less than Mainstay Filing.
South Dakota FAQ
Is a registered agent required for every South Dakota LLC?
Yes. Every LLC must name a registered agent with an in-state street address.
Who qualifies as the registered agent for a South Dakota LLC?
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.
How much does South Dakota registered agent service run each year?
Allow $99 to $149 each year.
What does the state bill an LLC every year?
$55 per year by our yearly measure, which is the annual report ($55 every year).
Which registered agents does this chart rank?
South Dakota Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and SD Registered Agent.org ($99 a year), with the leading pick named first.
Which registered agent should I use?
Our route runs through South Dakota Registered Agent.co: a local agent at $99 per year whose street address goes on the public record. After it, Mainstay Filing and SD Registered Agent.org.
Where each number comes from
- Check sdsos.gov for South Dakota Secretary of State, Business Services /; last seen August 2026.
- Check sosenterprise.sd.gov for South Dakota Secretary of State, Business Services /; last seen August 2026.
- Check sdlegislature.gov for South Dakota yearly filing: Annual report: fee and; last seen October 2026.
- Check sdlegislature.gov for South Dakota report due date; last seen August 2026.
- Check sdlegislature.gov for SDCL 47-34A-203; last seen August 2026.
- Check sdsos.gov for South Dakota formation fee: Filing fee, official source; last seen October 2026.
- Check sdlegislature.gov for South Dakota formation fee: Filing fee, official source; last seen October 2026.
- Check sdlegislature.gov for South Dakota registered agent statute; last seen October 2026.
- Check sos.nd.gov for North Dakota Secretary of State, Business Division; last seen August 2026.
- Check sos.nd.gov for North Dakota Secretary of State, Business Division; last seen August 2026.
- Check law.lis.virginia.gov for Virginia yearly filing: Recurring filing, official source; last seen October 2026.
- Check scc.virginia.gov for Virginia yearly filing: Recurring filing, official source; last seen October 2026.
- Check sos.ga.gov for Georgia Secretary of State fee schedule Rev. 8/2025; last seen October 2026.
- Check wyobiz.wyo.gov for Wyoming Secretary of State, Business Division; last seen August 2026.
- Check wyobiz.wyo.gov for Wyoming Secretary of State, Business Division; last seen August 2026.
- South Dakota Registered Agent.co's pricing page, seen November 12, 2026
- Mainstay Filing's South Dakota service page, seen November 12, 2026
- SD Registered Agent.org's pricing page, seen November 12, 2026