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South Dakota Corporation cost breakdown, 2026
Corporation cost in South Dakota · real fees, no upsells

How much does a Corporation cost in South Dakota?

Forming a corporation in South Dakota costs $150 in state filing fees, then $50/year in state annual fees. File.Business charges $0 service fee.

South Dakota corporation cost summary

Year 1 with File.Business$200
South Dakota state filing fee$150
South Dakotan annual fee$50/year
Registered agentFree year 1, $99/year after
File.Business service fee$0

C-Corp vs S-Corp cost in South Dakota

The South Dakota state filing fee is the same whether you elect S-Corp tax treatment or not. The S-Corp election is filed with the IRS (Form 2553), which is free. S-Corp election in South Dakota walks you through it.

Form your South Dakota corporation for $150 total

State filing fee only. $0 service fee. Free registered agent year 1. Start my South Dakota corporation

FAQ

How much does it cost to start a corporation in South Dakota?

$150 for the South Dakota state filing fee. File.Business charges $0 service fee on top.

What is the annual cost to maintain a South Dakota corporation?

$50/year for the South Dakotan annual report.

Are S-Corps cheaper than C-Corps to form in South Dakota?

Identical South Dakota state cost. S-Corp is a federal tax election filed separately with the IRS, free.

Cost calculator

What it actually costs to form your business

Pick your state. We show our service price, the state's filing fee, and your year-one total. No hidden costs.

Filing fees vary by state. We never mark them up.
Our service$0Formation included
State filing fee$150Paid at cost
Year 1 total$150+ $50/yr annual
South Dakota: $150 to form, $50/yr ongoing. State fee paid at cost · we add $0.
$129/yr Compliance Annual Filings · penalty-free

On the $129/yr Compliance Annual Filings plan, we cover state late fees.

When you autofile your annual report through the $129/yr plan and we miss the deadline, we pay the state's late fee. The guarantee applies to that specific plan and the filings it includes. Other File.Business services are billed at the prices on this page.

See compliance plans →
File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with any Secretary of State office. You may file directly with the appropriate state agency. SOC 2 Type II audited. 220,000+ businesses formed since 2017.
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