South Dakota Corporation Formation, 2026
How to form a corporation in South Dakota for $0 service fee.
South Dakota state filing fee is $150. Standard processing Same day (online). We file Articles of Incorporation with the South Dakota Secretary of State, issue 10M authorized shares (QSBS-eligible), prepare South Dakota corporate bylaws, issue founder common stock with vesting and 83(b) templates, obtain your EIN, and file your BOI report.
$0 service fee
QSBS preserved
60-day money-back
SOC 2 Type II secure
4.9 rating · 8,200+ reviews
Filed directly with the state
10,000,000 shares authorizedQSBS
Founder stock · 83(b) · EIN
Cap table ready on day one
Is a South Dakota corporation right for you
When the corporation structure fits.
FORM A CORPORATION IN SOUTH DAKOTA IF
- You plan to raise venture capital (institutional investors require C-Corp)
- You want to issue stock options to employees (ISOs)
- You want QSBS eligibility for capital gains tax exclusion
- You expect significant retained earnings (C-Corp can retain at 21% federal rate)
- You want clear separation between operators and shareholders
FORM AN LLC INSTEAD IF
- You are a solo operator or small business not raising outside capital
- You want pass-through taxation with no corporate formalities
- You prefer minimal annual compliance burden
- You will own real estate (LLCs are standard for property holding)
- You want simpler ownership transfer without share certificates
The South Dakota business environment
Why South Dakota for your corporation.
No state income tax. Strong financial services industry (credit card companies relocated here for favorable usury laws). Asset-protection trust legal environment is among the most favorable in the US. Same-day online filing.
State GDP$72BTotal state output
Population920kCensus estimate
Small businesses~90,000Per SBA
NotableNo state income tax + asset-protection trustsEconomic distinction
Top industries in South Dakota
Financial services (credit cards)AgricultureManufacturingTourism (Mount Rushmore)Healthcare
Top cities
Where South Dakota corporations are headquartered.
Sioux Falls
Largest city. Financial services, healthcare, retail HQs.Rapid City
Tourism (Mt Rushmore), military, healthcare.Aberdeen
Manufacturing, agriculture.Brookings
Agriculture, education, manufacturing.Pierre
State capital. Government, agriculture.
What we'll set up for you
A clean handoff, in four steps.
You give us the basics. We handle the state, the IRS, and the compliance clock so you can focus on the business.
01 · Name + Brand
A name that's actually available.
Real-time check against the state register, USPTO trademark database, and matching domains.
02 · State filing
Filed with the Secretary of State.
We submit your Articles, pay the state fee on your behalf, and return the stamped certificate.
03 · Federal IDs
EIN + the right tax setup.
Federal Employer ID with the IRS, plus state tax accounts when your business needs them.
04 · Stay compliant
Registered Agent + deadline tracking.
Your agent on file in every state, with every renewal and annual report tracked in one calendar.
Filing timeline
From form to filed in South Dakota.
1
Day 0
Tell us about your businessEntity name, incorporators, share structure, founder allocations2
Day 1
We file with South DakotaArticles submitted to the South Dakota Secretary of State3
Day 2-5
EIN + governance docsEIN issued. Bylaws, board minutes, founder stock prepared4
Day 5-30
83(b) + cap table83(b) mailed (30-day deadline). Cap table populated. Ready to operate
Compare to alternatives
South Dakota corp vs other formation states.
Delaware (default for VC-backed)$89+Required by most VCs. Foreign qualification in South Dakota still needed.
North Dakota$135Slightly lower fees, larger oil economy
Wyoming$100Lower fees, similar asset protection
Nebraska$100Biennial cycle, similar agricultural mix
South Dakota Corp$150Form here if you operate in South Dakota.
Local resources
South Dakota corporate resources.
SD Governor's Office of Economic DevelopmentState business support
SD SBDCStatewide network
Sioux Falls ChamberMetro chamber
Black Hills ChamberRapid City area
FAQ
South Dakota Corporation questions.
Should I form my South Dakota corporation as a C-Corp or S-Corp?
Most South Dakota corporations start as C-Corps (default federal tax treatment). S-Corp is a federal election (Form 2553) you file later, typically when net profit crosses $60-80k. For venture-backed startups, C-Corp is required: S-Corp cannot have institutional investors, non-US shareholders, or multiple share classes. We file the South Dakota corporation; you can elect S-Corp anytime by filing Form 2553.
What is the difference between forming an LLC and a corporation in South Dakota?
LLCs are simpler (no shares, fewer formalities, pass-through tax by default). South Dakota corporations have shareholders, a board of directors, officers, bylaws, board minutes, and double taxation by default. Corporations are the standard structure for raising venture capital because investors require preferred stock, ESOPs, and other corporate-specific instruments LLCs cannot provide.
Do I need bylaws for my South Dakota corporation?
Yes. South Dakota corporations are governed internally by bylaws (board structure, officer roles, meeting requirements, voting rules) plus the Articles of Incorporation filed with the South Dakota Secretary of State. We include South Dakota-appropriate bylaws with every formation, along with initial board minutes and a corporate governance binder.
How many shares should my South Dakota corporation authorize?
Standard for a new C-Corp: 10,000,000 authorized shares of common stock with a small percentage actually issued to founders. The 10M structure leaves room for an option pool (typically 10-20%) and future preferred stock issuances in financing rounds. We file the 10M authorized share structure by default; you can specify a different number.
What is QSBS and does my South Dakota corporation qualify?
Qualified Small Business Stock (IRC Section 1202) lets shareholders exclude up to $10M (or 10x basis) of capital gains on qualifying C-Corp stock held more than 5 years. South Dakota C-Corps qualify if they meet the active business test (80% of assets used in qualified trade) and the gross asset test (under $50M at issuance). We preserve QSBS eligibility from day one.
Do I need to issue founder stock with vesting?
Highly recommended. South Dakota founder stock without vesting means a co-founder who leaves after 6 months keeps 100% of their shares. With standard 4-year/1-year-cliff vesting, the company can reclaim unvested shares. We issue founder stock with vesting and prepare Section 83(b) election forms (due to IRS within 30 days of issuance).
When should my South Dakota corporation elect S-Corp status?
S-Corp election (IRS Form 2553) can save self-employment tax when net profit crosses ~$60-80k. Restrictions: 100 shareholders max, US individuals only (no entities, no non-resident aliens), single class of stock. If you plan to raise venture capital, stay C-Corp. Our service fee for filing Form 2553 is $99.
Start your South Dakota Corporation in 5 minutes.
Tell us a few details. We file with the South Dakota Secretary of State, prepare your bylaws, issue founder stock with vesting, file your 83(b) reminder, obtain your EIN, and file BOI.
Pay only state fee
QSBS preserved
60-day money-back
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Built for real businesses
Corporations we have formed in South Dakota.
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220,000+ businesses. 60-day money-back. State fees passed through at cost.
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Every deadline auto-tracked across your entities. Compliance Score visible year-round.
Transparent pricing
No hidden fees. No upsells at checkout. State fees disclosed upfront.