Register an LLC in Another State

Register an LLC in Another State › South Dakota

Register your LLC in South Dakota

To register an LLC formed in another state in South Dakota, file Application for Certificate of Authority, Foreign Limited Liability Company with the South Dakota Secretary of State and pay $750.

Before: at home

South Dakota wants proof from the home state: certificate of Existence. Order it from the state where the LLC was formed before you file here.

During: in South Dakota

File
Application for Certificate of Authority, Foreign Limited Liability Company
Fee
$750
Agent
A registered agent with a South Dakota street address

Best 3 Foreign Registration Services in South Dakota (2026)

Rather not file it yourself? For an existing LLC in South Dakota these three do it.

1. Mainstay Filing

$199 + $750 state fee = $949

Registered agent free for the first year, then $149 a year.

2. SD Registered Agent.org

$199 + $750 state fee = $949

Registered agent included for the first year, then $99 a year.

3. South Dakota Registered Agent.co

$199 + $750 state fee = $949

Registered agent included for the first year, then $99 a year.

Service prices read from each provider’s South Dakota page on October 28, 2026. The state fee is the official figure below and is paid to the South Dakota Secretary of State.

After: staying registered

Annual report (South Dakota Secretary of State), $55 (due: 1st of the anniversary month). The services above include the agent for year one.

South Dakota questions

Can my existing LLC operate in South Dakota?

Yes, once it is registered there. You file Application for Certificate of Authority, Foreign Limited Liability Company with the South Dakota Secretary of State and pay $750; you do not form a new LLC.

What do I need from my home state?

Certificate of Existence.

What happens after I register in South Dakota?

Annual report (South Dakota Secretary of State), $55 (due: 1st of the anniversary month), and a registered agent must stay in place.

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