How to Form an LLC in South Dakota: Step-by-Step Guide

By Lisa Matthews, General Manager and Business Compliance Advisor at Next Step Filings. form your LLC with Next Step Filings.

South Dakota consistently ranks among the cheapest states to form an LLC, with a low $150 filing fee and no annual report requirement for LLCs. This guide walks through exactly how to form a South Dakota LLC, what to expect for costs and timeline, and what ongoing compliance looks like.

Why Form an LLC in South Dakota?

South Dakota LLCs benefit from one of the lowest ongoing compliance burdens of any state:

For businesses that do not physically operate in South Dakota, these factors combine to make it one of the most appealing states for LLC formation from a cost and compliance perspective.

South Dakota LLC Filing Fees and Processing Times

Step 1: Choose a Name for Your South Dakota LLC

Your LLC name must be distinguishable from all other business names on file with the South Dakota Secretary of State. Required elements include Including LLC, L.L.C., or Limited Liability Company in your business name and making sure the name is not already in use by searching the South Dakota SOS business database.

Tip: Check domain name availability before finalizing your name. Securing a matching domain helps establish your online presence.

Step 2: Designate a South Dakota Registered Agent

South Dakota requires every LLC to maintain a registered agent with a physical street address in South Dakota. The registered agent must be available during regular business hours to accept legal documents, government notices, and compliance-related correspondence.

Next Step Filings provides registered agent service in South Dakota as part of our formation packages.

Step 3: File the South Dakota Articles of Organization

To officially form your LLC, submit the Articles of Organization to the South Dakota Secretary of State.

You will need to provide:

Practical note: The organizer is the person filing the formation documents and does not need to be a member of the LLC.

Step 4: Create an Operating Agreement

South Dakota does not legally require an operating agreement, but having one is strongly recommended for every LLC, including single-member LLCs and multi-member LLCs.

An operating agreement specifies Ownership percentages, profit and loss allocations, Management structure and voting rights and Member admission and withdrawal procedures.

For multi-member LLCs in particular, a written operating agreement is essential to document how the business will handle financial decisions, membership changes, and dispute resolution.

Step 5: Obtain an EIN from the IRS

An Employer Identification Number, also called a Federal Tax ID, is required to:

You can apply for an EIN on the IRS website at no cost.

Step 6: Open a Business Bank Account

Separating personal and business finances is essential to maintain the liability protection your LLC provides. Open a dedicated business checking account using your EIN and Articles of Organization.

Step 7: Handle Ongoing South Dakota Compliance

South Dakota does not require LLCs to file annual reports. This is one of the state's strongest advantages for LLC owners, as it eliminates a recurring administrative burden and associated filing fees found in most other states.

That said, there are still compliance items to manage:

South Dakota LLC vs Other States

South Dakota's LLC formation cost of $150 is moderate compared to the lowest-cost states:

StateFormation CostAnnual Report Required?Kentucky$40YesMississippi$50YesColorado$50YesNew Mexico$50NoSouth Dakota$150No

South Dakota's combination of no annual report and no state income tax makes it attractive despite its moderate formation fee. For businesses comparing options, see our guide on Wyoming LLC benefits at https://nextstepfilings.com/blogs/wyoming-llc-benefits.

If you need your LLC formed more quickly than South Dakota allows, see our guide on how long LLC formation takes across all fifty states.

If your business is physically located outside South Dakota but you are forming here, you will likely need to register as a foreign LLC in your home state as well, which carries its own fees and annual reporting obligations.

FAQ: Forming an LLC in South Dakota

How much does it cost to form a South Dakota LLC?

$150 for online filing, $165 by mail. Expedited same-day processing available for an additional $50 if filed in person.

Next Step Filings forms South Dakota LLCs with a $0 base fee plus the $150 state filing fee.

How long does it take to form an LLC in South Dakota?

Online filings through the South Dakota SOS portal are typically processed in one to two business days. Expedited same-day processing is available for in-person filings with a $50 additional fee.

Does South Dakota require LLCs to file annual reports?

No. South Dakota is one of the few states that does not require annual or biennial reports for LLCs.

Does South Dakota have an LLC formation tax?

No, South Dakota does not impose a state income tax, corporate income tax, or franchise tax on LLCs.

Can a non-resident form an LLC in South Dakota?

Yes, but you must maintain a registered agent with a physical address in South Dakota.

Do I need a South Dakota business license?

South Dakota does not have a general state-level business license, but some cities and counties have local license requirements. Check with your local city or county clerk office.

Disclaimer: This guide provides general information about South Dakota LLC formation and is not legal or tax advice. Filing fees are subject to change by the state. Next Step Filings is a private business filing service, not a law firm or state agency.

Lisa Matthews is the General Manager and Business Compliance Advisor at Next Step Filings, where she helps entrepreneurs navigate state-specific LLC formation and compliance requirements.