South Dakota: LLC Registered-Agent and Registered-Office Requirements

Requirements one by one

Governing law and terminology

South Dakota splits the rules between the LLC Act in chapter 47-34A and the
Model Registered Agents Act in chapter 59-11. The statutes use registered
agent. They require agent information and an in-state agent/business address,
not a second location separately maintained as a registered office.

Continuous designation duty

SDCL §§ 47-34A-203(a)(1)–(4) make the company name, designated office, §
59-11-6 agent information, and organizer information part of the articles.
Chapter 59-11 then supplies change and resignation procedures and expressly
anticipates that an entity may later have no agent by providing a direct-mail
service route.

The LLC administrative-dissolution grounds in § 47-34A-809 are limited to a
60-day tax/fee delinquency or a 60-day annual-report delinquency. They do not
state a separate dissolution ground solely for losing the agent.

Eligible individual

Under SDCL § 59-11-2(2), an individual may be a listed commercial agent; the
same section also permits a named individual noncommercial agent. The filed
address must be an actual South Dakota street address or rural-route box, with
a different South Dakota mailing address if there is one.

The cited sections state no separate residency, minimum age, citizenship,
professional-license, or daily-hours requirement.

Eligible entity and self-service

A domestic or foreign entity may be a commercial or named noncommercial agent.
The definition of person includes an LLC, and the Act does not expressly exclude
the represented LLC.

South Dakota also adopted the internal office or position route. Instead of
naming a noncommercial agent, the articles may designate a title within the LLC
and the business-office address of the person who holds it.

Registered office, address, and hours

There is no separate registered-office field. SDCL §§ 59-11-5 to 59-11-7
require a named noncommercial agent to use an actual South Dakota street address
or rural-route box and, if different, a South Dakota mailing address. A
commercial listing supplies the South Dakota place of business where process
and other documents may be delivered.

Chapter 59-11 states no fixed staffing schedule or numbered availability hours.
An ordinary P.O. box alone cannot replace the physical/rural-route field.

Consent and initial filing

The organizer-signed articles identify the commercial agent, the named
noncommercial agent and address, or the internal office/position and business-
office address. A commercial or named-noncommercial appointment is the LLC's
affirmation that the agent consented.

The statute requires no separate acceptance statement or agent signature. The
office/position route does not use the named-agent consent sentence.

Change, resignation, and replacement

The LLC files a signed statement changing its § 59-11-6 information. No member
or manager approval is needed, the new appointment affirms consent, and the
change takes effect on filing. A noncommercial agent changing its own name or
address files for each represented entity; that filing also takes effect
immediately, and the agent promptly gives recorded notice.

Under § 59-11-15, resignation takes effect on the earlier of appointment of a
new agent or the 31st day after filing. The agent promptly tells the LLC the
filing date and has no chapter responsibility for later matters after the
resignation is effective. Termination of an entire commercial-agent listing is
different: it is fixed on the 31st day after filing under § 59-11-9.

Agent duties and service

The registered agent receives legally required or permitted process, notices,
and demands. Section 59-11-20 limits the chapter duties to forwarding served
items to the latest company-supplied address, giving required notices, and
keeping the applicable noncommercial filing or commercial listing current. It
sets no numbered forwarding deadline.

Service is ordinarily a written document. A commercial agent may state in its
listing that it accepts another form of record, subject to its listed
requirements.

Lapse consequences and fallback service

If the company no longer has an agent or reasonable diligence cannot serve the
agent, § 59-11-16 permits registered or certified mail, return receipt requested,
to the named governors at the principal office shown in the latest annual
report. Service is perfected on the earliest of actual receipt, the signed
return-receipt date, or five days after proper mailing.

If that method cannot be completed, § 59-11-17 permits hand delivery to the
manager, clerk, or other person in charge of a regular business place or
activity. Other service methods prescribed outside chapter 59-11 remain
available. Loss of the agent therefore does not make the LLC unreachable and,
by itself, is not a listed § 47-34A-809 dissolution ground.

What trips people up

South Dakota includes an office/position route. The articles may designate
an internal title and business-office address instead of naming a
noncommercial person.

Commercial-listing termination and entity-specific resignation differ. The
listing ends on a fixed day 31. An ordinary resignation ends earlier if the LLC
appoints a successor.

Fallback service does not run through the Secretary of State. It moves first
to tracked mail to governors at the principal office, then to the person in
charge at a regular business place.

Common questions

Can a member or manager serve? Yes, by qualifying as the named individual
noncommercial agent or by holding the office/position designated in the filing.

Can a P.O. box be the only agent address? No. A named-agent filing needs an
actual South Dakota street address or rural-route box; a different mailing
address may be added.

When is mailed fallback service complete? On the earliest of receipt, the
signed return-receipt date, or day five after a correctly addressed and posted
mailing.

Statutes and sources

• SDCL §§ 59-11-2 and 59-11-5 to -7 — agent types, office/position route,
  address, consent affirmation, and commercial listing.
  https://sdlegislature.gov/api/Statutes/59-11-6.html
  (accessed 2026-07-27)
• SDCL §§ 59-11-9 to -15 — commercial termination, company and agent
  changes, effective dates, notices, and resignation.
  https://sdlegislature.gov/api/Statutes/59-11-15.html
  (accessed 2026-07-27)
• SDCL §§ 59-11-16 to -20 — agent authority and duties, mail/business-place
  fallback, service form, perfection, and other-law methods.
  https://sdlegislature.gov/api/Statutes/59-11-16.html
  (accessed 2026-07-27)
• SDCL §§ 47-34A-203, 47-34A-205, and 47-34A-809 — articles, organizer
  execution, and the exhaustive LLC administrative-dissolution grounds.
  https://sdlegislature.gov/api/Statutes/47-34A-203.html
  (accessed 2026-07-27)