LLC Formation Cost in South Dakota (2026): Full Fee Breakdown

LLC Formation in South Dakota typically costs $325, with real-world totals ranging from $150 to $1,900 once 3 mandatory fees are included.

Updated September 4, 2026 · Typical turnaround 5 days · Estimates in USD

Low

$150

File yourself directly with the state; act as your own registered agent.

Average · typical

$325

Most people pay close to this once mandatory add-ons are included.

High

$1,900

Attorney-prepared filing, fastest expedite, commercial agent, drafted operating agreement, first-year recurring fees.

Estimate your out-of-pocket total

Pick your option and toggle the add-ons that apply to you.

Option

Add-on fees

State filing fee (Articles of Organization) Mandatory Paid once to the South Dakota Secretary of State (sdsos.gov). $150
Annual report (first year) Mandatory Recurring state filing to keep the LLC in good standing. $50
Registered agent service (annual) Optional Legally required role, but you can serve as your own agent for free if you have an in-state street address. $125
Operating agreement (template or attorney) Optional Not filed with the state, but banks and courts expect one. $99
EIN from the IRS Mandatory Free at irs.gov; third parties charge $50–$100 for the same form. $0
Late penalty (missed annual report) Optional Avoidable; shown so you can budget the downside. $50

Why the llc formation price varies so much

The headline "South Dakota LLC filing fee" is only the first line of the real cost. Between the state fee, registered-agent service, expedite tiers, and the recurring fees that come due in year one, a South Dakota LLC realistically costs between $150 and $1,900 to launch. The tables below itemize each fee, flag which ones are mandatory, and let you total up your own formation budget.

What drives the number in South Dakota

South Dakota has no corporate or personal income tax; the $50 annual report ($65 paper) is the only recurring state cost. Official fee schedule: sdsos.gov.

LLC Formation price by option

Base price for each tier before the add-on fees listed below.

Option / tier	Price (USD)	vs. average
DIY filing (state fee only)	$150	-54%
Budget formation service	$200	-38%
Full-service formation (EIN + operating agreement)	$350	+8%
Attorney-prepared formation	$1,050	+223%

Hidden fees and surcharges

Mandatory line items add about $200 on top of the base price. Optional items only apply if you use them.

Line item	Status	Typical cost	Why it exists
State filing fee (Articles of Organization)	Mandatory	$150	Paid once to the South Dakota Secretary of State (sdsos.gov).
Annual report (first year)	Mandatory	$50	Recurring state filing to keep the LLC in good standing.
EIN from the IRS	Mandatory	$0	Free at irs.gov; third parties charge $50–$100 for the same form.
Registered agent service (annual)	Optional	$125	Legally required role, but you can serve as your own agent for free if you have an in-state street address.
Operating agreement (template or attorney)	Optional	$99	Not filed with the state, but banks and courts expect one.
Late penalty (missed annual report)	Optional	$50	Avoidable; shown so you can budget the downside.
Mandatory add-ons total		$200

How to use this estimate

Budget the mandatory column first: it is the amount you cannot avoid in year one. Everything in the optional column is a choice — you can be your own registered agent and draft your own operating agreement.
Only pay for expedited processing if a bank account or contract deadline depends on it; standard online filings are usually processed within days.
Put the recurring deadline on your calendar the day you file. Late penalties and loss of good standing cost more than the recurring fee itself.

LLC Formation in South Dakota: questions people ask

How much does it cost to form an LLC in South Dakota?

The South Dakota state filing fee is $150. A realistic first-year total including a registered agent and the first recurring filing is about $325; using an attorney and the fastest expedite pushes it toward $1,900.

What are the annual fees for a South Dakota LLC?

Each year a South Dakota LLC pays $50 for the annual report — $50 in total before any registered agent fee. South Dakota has no corporate or personal income tax; the $50 annual report ($65 paper) is the only recurring state cost.

Can I expedite LLC formation in South Dakota?

South Dakota does not sell a formal expedite tier; online filings are typically processed within a few business days at the standard $150 fee.

Do I need a registered agent for a South Dakota LLC?

Yes, every South Dakota LLC must list a registered agent with a physical in-state address. You can act as your own agent at no cost, or hire a commercial service for $49–$299 per year (about $125 is typical).

What happens if I miss the South Dakota annual report deadline?

South Dakota charges a $50 late penalty, and continued non-filing leads to loss of good standing and eventually administrative dissolution, which costs more to reverse than the original fee.

Is South Dakota an expensive state to form an LLC in?

South Dakota's $150 filing fee compares with a national low of $35 (Montana) and highs of $500 (Massachusetts). Counting recurring costs, South Dakota owes $50 per year to the state, versus $800+ in California and $0 in states like Missouri and New Mexico.