Every LLC formed in South Dakota is legally required to appoint and continuously maintain a registered agent — a person or company with a physical South Dakota street address, available during business hours, to receive legal and state notices for the company. Here’s how South Dakota’s rules work, whether you can be your own agent, and which services we’d actually use.
South Dakota LLC at a glance
| Requirement | South Dakota |
|---|---|
| Registered agent required? | Yes — every LLC |
| LLC filing fee | $150 (one-time) |
| Ongoing report | $55 (annual) |
| Be your own agent? | Allowed with a physical South Dakota address |
South Dakota requires a report every year, currently $55.
Can you be your own registered agent in South Dakota?
Yes. South Dakota lets you serve as your own registered agent if you (a) have a physical street address in South Dakota — not a PO box — and (b) are there during normal business hours to accept service of process. The trade-offs are universal: your address becomes public record, you’re tied to business hours, and being handed a lawsuit in front of customers is its own problem. Full decision guide: can I be my own registered agent?
Best registered agent services for South Dakota LLCs
We scored every major provider with the same Verdict Score. The ones worth using in South Dakota:
| Service | Verdict | RA price | Why |
|---|---|---|---|
| Northwest | 9.2 | $125/yr | Privacy included, no upsells — our #1 |
| ZenBusiness | 8.0 | $199/yr | Best all-in-one dashboard |
| Bizee | 6.0 | Free yr 1, ~$119/yr | Cheapest entry |
| LegalZoom | 7.0 | $249/yr | Brand name, priciest RA |
For most South Dakota LLCs we’d pick Northwest Registered Agent — address privacy at no extra charge and no upsell games. Full breakdown: best registered agent services.
Get Northwest in South Dakota →
What if your South Dakota LLC has no registered agent?
Fail to maintain one — or your agent can’t be reached — and South Dakota can pull your LLC’s good standing and eventually dissolve it administratively. Worse, a lawsuit can proceed by default because the notice never reached you. The full consequences →
FAQ
How much does it cost to keep an LLC in South Dakota?
$150 to form, plus $55 per year for the report. A professional registered agent adds about $125/yr (Northwest).
Can I change my South Dakota registered agent later?
Yes — file a change with the South Dakota Secretary of State at any time (small or no fee). Your LLC stays intact.
LLCVerdict earns commissions from some links — never changes our verdicts or your price. Disclosure. Fees verified June 2026; confirm current figures with the South Dakota Secretary of State.