South Dakota Business Entity Search

South Dakota business records live with the South Dakota Secretary of State.

South Dakota only answers searches on its own site. Search opens the official South Dakota search in a new tab and copies your search term, so you can paste it into the business name field there.

South Dakota at a glance

LLC filing fee $150 Source, checked 2026-10-26
Corporation filing fee $150 Source, checked 2026-10-26
Annual Report $55, every year Source, checked 2026-10-26
Name reservation $25, held 120 days Source, checked 2026-10-26
Certificate of Good Standing/Existence $20 Source, checked 2026-10-26

South Dakota business records

South Dakota has no corporate income tax. An LLC or corporation that does not deliver its annual report within 60 days after it is due can be administratively dissolved. Paper filings cost $15 more than online filings.

The public record of every South Dakota LLC and corporation belongs to the South Dakota Secretary of State, Business Services.

Statuses you may see in South Dakota

Status	What it means
Active	The entity is registered and current with the Secretary of State and can file its annual report online.
Delinquent	The annual report is overdue; the entity can still file it, with a late fee.
Dissolved	The entity has been dissolved, either voluntarily or administratively, and must be reinstated to return to good standing.
Revoked	An out of state entity's authority to do business in South Dakota has been revoked, and it must be reinstated to return to good standing.

Source, checked 2026-10-26. Words other states use are in the business entity status guide.

Questions

Is this the official South Dakota business search?

No. Open State Index is an independent website with no connection to any government agency. The official South Dakota search is Business Services Online, run by the South Dakota Secretary of State.

How do I check if a business name is available in South Dakota?

Use the Secretary of State's Business Name Availability search, which checks the exact name only; search variations in the Business Information Search. A result is not a guarantee, since the name is reviewed again when the formation document is filed.

Does South Dakota charge a franchise tax or a similar yearly tax?

South Dakota does not impose a corporate income tax; its bank franchise tax applies only to financial institutions.

More about a South Dakota business

Every fee and rule above links to the official page it came from. How we check our facts · Report an error