South Dakota LLC Costs (2026): Official Fees and the 3 Best LLC Services
Short answer for South Dakota in 2026: SD Registered Agent.org ($199), Mainstay Filing ($199) and South Dakota Registered Agent.co ($199), in that order. South Dakota charges $150 to form and $55 for the annual report every year; on our three-year measure it ranks 31st of 50.
To form the LLC you file the Articles of Organization with the South Dakota Secretary of State and pay $150. No service on this page marks it up. The state lists processing as Paper 1 to 3 business days; online processed immediately.
South Dakota annual report: fee, due date and late fee
Recurring filing: the annual report. Fee: $55, every year. Deadline: due during the entity's anniversary month. Late penalty: $50.
What decided the order
Deciding factor in South Dakota: service fees over three years (35%). SD Registered Agent.org beat Mainstay Filing on it.
Three-year service fees come to $397 with SD Registered Agent.org, saving $200 against Mainstay Filing.
FAQ
How much does it cost to start an LLC in South Dakota?
$150 to the state. The services we'd use add $199 for the first year.
How much is the South Dakota annual report?
$55, every year, due due during the entity's anniversary month. Late filing adds $50.
Where does South Dakota rank on LLC costs?
31st of 50 on three-year state fees, at $260, counting from the least expensive state.
How long does approval take?
Standard processing: Paper 1 to 3 business days; online processed immediately.
Is a registered agent required?
Every LLC must name a registered agent with an in-state street address.
Which LLC service would you use?
SD Registered Agent.org first: $199 plus the state fee, with the first year of agent service included, then $99 a year. Then Mainstay Filing and South Dakota Registered Agent.co.