How to Start an LLC in South Dakota
Learn how to start an LLC in South Dakota: $150 state filing fee, Articles of Organization filed with the Secretary of State, and a $50 annual report due each year. Step-by-step guide.
Bizee Editorial Staff
Editorial Team
South Dakota LLC at a glance
Filing fee: $150 (Articles of Organization, online or by mail)
Processing time: Typically 3–5 business days for online filings
State agency: South Dakota Secretary of State
Annual report due: By the anniversary month of formation; $50 filing fee
State tax rate: No state income tax; no franchise tax; state sales tax applies to taxable goods and certain services
How to start an LLC in South Dakota
To form an LLC in South Dakota, you file Articles of Organization with the South Dakota Secretary of State and pay a $150 state fee. You'll also need a registered agent with a physical South Dakota address. Most online filings are processed in 3–5 business days.
Why form an LLC in South Dakota
South Dakota is one of the more business-friendly states in the country, and the numbers back that up. There's no state income tax, no franchise tax, and no personal income tax — which means your LLC's pass-through income isn't taxed at the state level. For entrepreneurs who want to keep more of what they earn, that's a real advantage.
The state also has a straightforward formation process, low ongoing compliance costs, and a $50 annual report fee that's among the lowest in the region. If your business sells taxable goods or certain services, South Dakota's Department of Revenue administers the state sales tax — so you'll want to check whether your business activities trigger that requirement.
How to form a South Dakota LLC in 6 steps
The formation process in South Dakota is straightforward. Most people can complete it in a single sitting if they have their information ready.
Choose a business name: Your LLC name must include "Limited Liability Company," "LLC," or "L.L.C." and must be distinguishable from other registered businesses in South Dakota. You can check name availability through the South Dakota Secretary of State's online business search.
Appoint a registered agent: Every South Dakota LLC needs a registered agent — a person or business with a physical South Dakota address who can receive legal documents on your behalf. You can serve as your own registered agent, but many business owners use a registered agent service to keep their personal address off public records.
File Articles of Organization: This is the document that officially forms your LLC. File online or by mail with the South Dakota Secretary of State and pay the $150 state fee. You'll need your LLC name, registered agent information, and the names of the organizers.
Create an operating agreement: South Dakota doesn't legally require an operating agreement, but having one protects your LLC's limited liability status and spells out how the business is owned and run. It's especially important if you have multiple members.
Get an Employer Identification Number (EIN): An EIN is your LLC's federal tax ID. You'll need one to open a business bank account, hire employees, or file certain tax returns. Apply for free at irs.gov.
Open a business bank account: Keeping your business and personal finances separate is one of the most important things you can do to protect your personal assets. A dedicated business account also makes bookkeeping and tax filing much cleaner.
South Dakota LLC costs
The required state costs to form and maintain a South Dakota LLC are low compared to most states. Here's what to expect.
Articles of Organization filing fee: $150 (online or by mail)
Annual report fee: $50 per year, due by your LLC's anniversary month
Late annual report penalty: $10 per month, up to a maximum of $100
Registered agent: $0 if you serve as your own; varies if you use a service
South Dakota doesn't charge a franchise tax, which keeps your annual compliance costs predictable. The $50 annual report is the main recurring obligation most LLCs will face.
Registered agent requirements
South Dakota requires every LLC to maintain a registered agent with a physical street address in the state. A P.O. box doesn't qualify. The registered agent receives official legal and government correspondence on behalf of your LLC — things like service of process if your business is sued.
You can be your own registered agent if you have a South Dakota address and are available during business hours. Many business owners prefer a registered agent service so their home address stays off public records and they don't have to worry about missing important documents.
Operating agreement
South Dakota doesn't require LLCs to have an operating agreement, but skipping one is a mistake most business owners regret. Without one, your LLC defaults to South Dakota's standard LLC statutes — which may not reflect how you actually want to run your business.
A good operating agreement covers ownership percentages, how profits and losses are divided, voting rights, what happens if a member leaves, and how the business can be dissolved. For single-member LLCs, it also reinforces that your business is a separate legal entity — which matters if your liability protection is ever challenged.
Annual report and ongoing compliance
South Dakota LLCs must file an annual report with the Secretary of State by the anniversary month of their formation date. The filing fee is $50 whether you file online or by mail.
If you miss the deadline, the state charges a $10 late fee for each month the report is overdue, up to a maximum of $100. Missing the annual report for long enough can put your LLC's good standing at risk, so it's worth setting a calendar reminder well before your anniversary month.
South Dakota business taxes
South Dakota has no state income tax and no franchise tax — two of the biggest reasons entrepreneurs choose to form here. Your LLC's pass-through income won't be taxed at the state level, which is a meaningful difference from states like California or New York.
If your LLC sells taxable goods or certain services, you'll need to collect and remit South Dakota sales tax. The state's Department of Revenue handles sales tax registration and administration. A tax professional can help you figure out whether your specific business activities are subject to sales tax.
Other South Dakota LLC types
Most entrepreneurs form a standard domestic LLC, but South Dakota also recognizes a few other LLC structures worth knowing about.
Professional LLC (PLLC): Required for licensed professionals like attorneys, physicians, and accountants. The formation process is similar to a standard LLC, but you'll need to show proof of professional licensure.
Foreign LLC: If your LLC was formed in another state but you want to do business in South Dakota, you'll need to register as a foreign LLC with the South Dakota Secretary of State and appoint a registered agent in the state.
Series LLC: South Dakota law allows for series LLCs, which let a single LLC hold multiple distinct series — each with its own assets, liabilities, and members. This structure is used by real estate investors and others who want to separate risk across multiple holdings under one umbrella.
FAQ
The state filing fee to form a South Dakota LLC is $150, paid when you file your Articles of Organization with the Secretary of State. After that, the main recurring cost is the $50 annual report fee due each year by your LLC's anniversary month. South Dakota has no franchise tax, which keeps ongoing costs low.
You file Articles of Organization online or by mail with the South Dakota Secretary of State. The filing fee is $150. You'll need your LLC name, your registered agent's name and South Dakota street address, and the names of the organizers. Online filings are typically processed in 3–5 business days.
No. South Dakota doesn't legally require an operating agreement. That said, having one is strongly recommended — especially if your LLC has more than 1 member. Without an operating agreement, your LLC defaults to South Dakota's standard LLC statutes, which may not reflect how you want ownership, profits, or decision-making to work.
Your South Dakota LLC annual report is due by the anniversary month of your formation date each year. The filing fee is $50. If you miss the deadline, the state charges a $10 late fee per month, up to a maximum of $100. Filing on time keeps your LLC in good standing with the Secretary of State.
South Dakota has no state income tax, no personal income tax, and no franchise tax — meaning your LLC's pass-through income isn't taxed at the state level. Formation costs are low at $150, and the $50 annual report fee is among the lowest in the region. The state also has a straightforward filing process with fast online processing times.
To dissolve a South Dakota LLC, you file Articles of Dissolution with the South Dakota Secretary of State. Before filing, you'll need to wind up the business — settling debts, distributing remaining assets to members, and closing any business accounts. Once the state processes your dissolution, your LLC is no longer a legal entity and annual report obligations stop.
Yes. LLC formation in South Dakota is handled at the state level through the Secretary of State — not at the city level. Whether your business is based in Sioux Falls, Rapid City, or anywhere else in the state, the process and fees are the same. You may need a local business license depending on your city and business type, so check with Sioux Falls city offices if you're operating there.
Yes. A South Dakota LLC can elect S Corporation tax treatment by filing IRS Form 2553. This election changes how the IRS taxes your business income — owners pay themselves a reasonable salary as a W-2 employee and take additional profits as distributions, which aren't subject to self-employment tax. A tax professional can help you figure out whether an S Corp election makes sense for your situation.
