Quick answer

Quick Answer

To start a South Dakota LLC, you must file Articles of Organization with the South Dakota Secretary of State and pay a $150 filing fee (if filed online). You are legally required to appoint a registered agent with a physical street address in South Dakota. Once formed, your LLC must file an Annual Report by the first day of its anniversary month every year, which costs $50. South Dakota has zero personal income tax and zero corporate income tax, meaning your LLC pass-through profits are entirely exempt from state income taxes. The state also does not charge a franchise tax.

South Dakota LLC filing fee

The state filing fee for your Articles of Organization is $150 if you file online. The South Dakota Secretary of State strongly encourages online filings; if you submit paper forms via mail, you will be charged an additional $15 paper processing fee ($165 total). Online filings are processed quickly, usually within 1 to 3 business days.

Step 1: Choose a name

Your LLC's name must be perfectly unique and distinguishable from other business entities registered in South Dakota. State law requires that the name include an appropriate LLC designator, such as "Limited Liability Company", "LLC", or "L.L.C.". You can search the South Dakota Secretary of State's online database to verify that your desired name is available.

Step 2: Appoint a registered agent

Every South Dakota LLC must designate a registered agent. This is an individual or authorized business entity responsible for receiving service of process, lawsuits, and official state correspondence on behalf of the LLC. The agent must have a physical street address in South Dakota (P.O. Boxes are not permitted) and must be available during regular business hours.

Step 3: File formation documents

Your business is officially created when you file the Articles of Organization with the South Dakota Secretary of State. You must provide your LLC's name, the name and address of your registered agent, its designated principal office address, and whether it is member-managed or manager-managed. The online filing fee is $150.

Step 4: Create an operating agreement

South Dakota law does not require you to file an operating agreement with the state. However, drafting an operating agreement is highly recommended for the legal protection of your business. It serves as the internal governing document for your LLC, establishing ownership percentages, voting rights, and how profits are divided. Additionally, almost all banks will require a copy of your operating agreement to open a business bank account.

Step 5: Get an EIN

An Employer Identification Number (EIN) is a free 9-digit tax ID assigned by the IRS. It functions like a social security number for your business. You will need an EIN to hire employees, open a business checking account, and file federal tax returns. You can apply for an EIN online directly through the IRS website.

Step 6: Register for state taxes if needed

South Dakota's tax code is incredibly favorable. There is zero state income tax, meaning your pass-through LLC profits are entirely tax-free at the state level. However, if your LLC sells physical goods, you must register with the South Dakota Department of Revenue to collect the state's 4.2% base sales tax, plus any local county and city additions (which frequently bring the total to around 6.5%).

Step 7: File annual reports and stay compliant

Every South Dakota LLC must file an Annual Report to maintain its active status. The report is due by the first day of the anniversary month of your LLC's formation. For example, if you formed your LLC on October 15, your annual report is due by October 1 every year. The fee is $50 if filed online (or $65 by mail). Failure to file on time results in a $50 late penalty and administrative dissolution.

South Dakota LLC Cost

Fee Type Amount
Formation fee $150
Registered agent estimate $39 - $150 / year
Annual report fee $50 / year
Franchise tax $0 (None)
Publication fee if applicable $0 (None)
WHEN THIS MAY NOT APPLY

If you do not live in South Dakota, do not operate from South Dakota, and do not have a specific South Dakota-related reason for forming there, a South Dakota LLC may not be the best default choice. You may still need to register the LLC as a foreign LLC in the state where you actually operate, which can create duplicate filing fees, registered agent costs, and annual compliance requirements.

South Dakota currently charges $150 to form a domestic LLC. Annual reports are currently $55. For many purely online businesses, it is usually worth comparing your home state with commonly used business-friendly states such as Wyoming, which charges $100 to form an LLC and has a $60 minimum annual license tax, before choosing South Dakota.

Should you form your LLC in South Dakota?

A South Dakota LLC usually makes sense if you live in South Dakota, operate your business from South Dakota, or have a clear legal or tax reason to use South Dakota. If you live and operate somewhere else, forming in South Dakota may create extra registered agent costs, foreign qualification requirements, and duplicate compliance obligations. South Dakota may appeal to some owners, but compare it with Wyoming, Delaware, Nevada, and your home state in our guide to the best state for an online business LLC. For a comprehensive overview of starting a business, visit our LLC formation hub.

Situation Is a South Dakota LLC usually a good fit?
You live in South Dakota Usually yes
Your business operates in South Dakota Usually yes
You want privacy Depends on state rules
You live in another state Usually only if you have a specific reason
You are a non-US resident Depends on banking, taxes, and compliance needs

South Dakota LLC vs Wyoming LLC

For non-resident business owners, Wyoming edges out South Dakota. Both states share excellent traits: zero state income tax, no franchise taxes, and comparable annual fees ($60 minimum in Wyoming vs. $50 in South Dakota). However, Wyoming is superior because it offers robust statutory anonymity, keeping your ownership details completely off public registries. South Dakota does not guarantee this level of privacy. If you operate a brick-and-mortar business inside South Dakota, you must register a South Dakota LLC. If you run a purely online business, Wyoming is a slightly better choice due to its privacy laws.