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A South Dakota LLC is a popular choice for entrepreneurs, and for good reason. South Dakota has no state income tax, which means more of your hard-earned revenue stays in your pocket. There’s also no corporate income tax or business inventory tax, which makes growing your business more profitable, too.
The state’s tax advantages, business-friendly regulations, and straightforward process all make it desirable for a business owner to form a limited liability company (LLC) in South Dakota. Whether you’re a resident of The Mount Rushmore State or an out-of-state entrepreneur, use this guide to learn how to start an LLC in South Dakota in just six steps, from submitting formation paperwork to registering for certain taxes.
How to form a South Dakota LLC in 6 steps
Let’s break down the LLC formation process into manageable steps to help you stay on track.
Step 1: Choose your business name
The first step is to choose a name for your business. Your South Dakota LLC name must follow certain rules, according to South Dakota Statute 47-34A-105:
- The name must include the words “Limited Liability Company” or “Limited Company” or the abbreviations “LLC,” “L.L.C.,” “LC,” or “L.C.”
- Avoid restricted terms like “bank,” “insurance,” or “trust,” unless your business has the proper licenses.
- Your LLC name has to be unique—it can’t be the same as (or similar to) another existing business, reserved business name, or fictitious name in the state.
Once you’ve come up with some potential names, it’s important to ensure that the names are available on a few levels:
- Conduct a South Dakota business name check to make sure they don’t overlap with existing business names in the state.
- Perform a South Dakota trademark search to ensure they don’t overlap with current trademarks in the state.
Search federal trademarks through the U.S. Patent and Trademark Office.
Free South Dakota Business Name Check
Use our free name check tool to search the South Dakota Secretary of State database and see if your business name is available.
By clicking "Check Availability," I agree to LegalZoom's Terms of Use. This search is a preliminary check of state databases and does not include variations or trademarks. Results do not guarantee name availability or compliance with legal requirements.
LegalZoom also offers comprehensive trademark searches at both the state and federal levels, including pending and existing trademarks, depending on which package you choose. Our ranked search results help identify potential conflicts.
If you’ve found the perfect available name but aren’t quite ready to register your business, you can reserve the name for 120 days for a $25 fee.
Step 2: Appoint a registered agent
Every South Dakota LLC must appoint a registered agent. This is the person or company responsible for receiving important legal documents, such as legal notices or other official correspondence on behalf of your LLC.
The following are the registered agent requirements according to South Dakota Statutes, Chapter 59-11:
- Agents can be individuals who are residents of the state or domestic or foreign entities authorized to operate in South Dakota.
- The agent must have a physical street address in South Dakota or a rural route box number (P.O. boxes are not allowed).
- They must be available during regular business hours.
You can act as your own registered agent if you live in South Dakota, or you can also appoint someone you trust. However, potential downsides of this option often outweigh the cost savings. For example, if you’re out of the office or travel frequently, you run the risk of missing important documents or service of process, which can have legal implications. Additionally, if you work from home, your residential address will become part of the public record if listed on your articles of organization.
Another option is to hire a professional registered agent service like LegalZoom. Our registered agent service is a smart choice for busy business owners, because we’ll make sure you never miss an important document. We send alerts when important mail and service of process are delivered. Plus, we scan documents into a secure online portal for access any time.
If you ever need to change your registered agent, simply file a Registered Agent Statement of Change with the Secretary of State. This form can either be filed online through your account on the Secretary of Service’s website or by mail for an additional $15 filing fee.
Step 3: File articles of organization
Official South Dakota LLC registration involves filing articles of organization with the Secretary of State. Filing the articles involves providing information about your business, such as:
- The LLC name, physical street address, and mailing address
- The purpose of the LLC
- The name, physical address, and mailing address of your registered agent
- The names and addresses of the LLC’s organizers
- The LLC’s duration, or how long it will exist (most LLCs are perpetual, meaning the duration is indefinite)
- Whether the LLC will be member-managed or manager-managed
- If manager-managed, then the name and address of each initial manager
- Names and addresses of beneficial owners (if any)
You can file your articles of organization online through the South Dakota Secretary of State’s website or by mail. If filing by mail, download the paper form, fill it out completely, include a check payable to “Secretary of State,” and mail the form and payment to:
Secretary of State Office
500 E Capitol Ave
Pierre, SD 57501
The online filing fee is $150, and articles are often processed on the same day. The mail-in filing fee is $165, and processing could take a few days.
LegalZoom’s LLC formation services help you fill out your articles of organization accurately and easily. All you have to do is answer a few questions, and we’ll put together your formation paperwork, submit it to the Secretary of State, and let you know when it’s official.
Step 4: Create an operating agreement
Next, create an operating agreement. While not legally required in South Dakota, operating agreements are highly recommended, especially for South Dakota LLCs with multiple members. An operating agreement is a legal document that outlines how your LLC will be run and should cover important details, such as the following:
- The ownership structure (who owns what percentage of the business)
- Capital contributions
- The roles and responsibilities of each member or manager
- How profits and losses will be distributed
- What happens if a member leaves the company
- How to admit new members
- Voting rights and decision-making authority
- Dispute resolution process
- Buy-sell provisions
An operating agreement gives you control over how your LLC operates and makes your business look more professional to lenders and investors. It should outline how to settle disputes between the LLC’s members, and it can be used to help a court settle any issues that arise. Otherwise, the court will just make decisions based on state law, not what’s best for your business entity.
You can draft a simple operating agreement yourself using online operating agreement templates or get professional assistance with LegalZoom’s operating agreement service, which drafts a personalized document based on your needs.
Step 5: Obtain a federal tax ID and open a business bank account
If you operate your South Dakota LLC as a multi-member LLC, have employees (or plan to have them), offer a tax-deferred pension plan, or file excise tax returns, you’ll need to get an employer identification number (EIN) from the IRS. This is a unique number that identifies your LLC for federal tax purposes.
You can apply for an EIN through the IRS website or skip the paperwork and use LegalZoom’s EIN service, which files your application for you—just answer a few questions, then wait for approval.
Banks frequently require EINs to open business accounts. And even if you have a single-member LLC with no employees and can open a bank account without one, it’s a good idea to get an EIN to help clearly separate the LLC’s debts from your personal finances. This helps maintain your liability protection.
Keep in mind that in addition to your EIN or Social Security number (for single-member LLCs), some banks will require your articles of organization and operating agreement to open an account.
Starting a business takes courage. LegalZoom makes sure the legal details don’t stand in your way, from the day you register until the day you retire.
Step 6: Register for state taxes and business licenses
LLCs are usually taxed as “pass-through entities,” which means that members pay taxes on the LLC’s income through their personal income taxes. However, South Dakota doesn’t have a personal income tax or a corporate income tax, so you won’t owe the state these taxes. (You will still need to pay your federal taxes, though!) Compared to other states with high personal income tax rates, such as California, South Dakota can offer you significant savings.
Although South Dakota has no state income tax or corporate tax, your LLC might still be responsible for other taxes. If your business sells goods or services subject to sales tax, you’ll need to register for a sales tax license with the South Dakota Department of Revenue. As of 2026, the state’s sales tax rate is 4.2%, and local taxes may add more. If you plan to have employees, you’ll also need to register to pay the reemployment assistance tax through the South Dakota Department of Labor & Regulation.
Now, onto business licenses. There is no requirement for a general state business license for South Dakota LLCs, but certain types of businesses might need special licenses or permits depending on their industry, location, or business activities. For instance, food service, commercial food production, agriculture, health and medical, banking, insurance, and real estate businesses will need relevant business licenses. You may also need to obtain county or city business licenses.
Read our guide to learn more about South Dakota business licenses and which agencies issue them. LegalZoom’s Business License Report & Management service also provides a detailed list of federal, state, and local licenses and permits your LLC needs to operate legally in the state.
What to do after forming your South Dakota LLC
After you file the official paperwork for your LLC in South Dakota, there are a few more steps you should take.
Register a domain name
Your domain name is your website address, and in today’s economy, it’s essential to have one. In fact, you should start thinking about it as you brainstorm your LLC name. Search sites like GoDaddy and Wix for available domain names (prices vary by site). Once you purchase a name, you’ll be able to use it as part of your branding and marketing.
If you form your LLC with LegalZoom, you’ll get a customizable website through Wix as part of the Pro and Premium packages. This is a great option to ensure that you maintain an online presence and that customers can find you easily.
Obtain a certificate of good standing
A certificate of good standing verifies that your South Dakota LLC is registered and compliant with all state requirements. While having one is not legally required, you may need this certificate when you apply for loans, renew business licenses, or enter contracts with other businesses. You can request one from the South Dakota Secretary of State for a $20 fee.
Consider a foreign LLC
If you plan to expand your business into other states, you’ll need to register as a foreign LLC in each state where you want to operate. This is important if you want to have a physical presence, employees, or significant business activities outside of South Dakota. To register, file the paperwork with the other state’s government and pay any required fees.
Determine if you need a series LLC
South Dakota is one of a handful of states that recognizes the series LLC, which is a type of LLC that has one or more LLCs under it, creating a series. Each is treated as a separate entity (with separate liability protection) but without the need for filing separate articles of organization. Series LLCs are commonly used for real estate investors, franchises, and businesses with multiple product lines.
To create a domestic master LLC in South Dakota, you’ll need to file the Articles of Organization & Qualification of Master Series form and pay the $200 filing fee. To change an existing standard LLC to a series LLC, file the amended form and pay the $200 filing fee. Then, for each LLC in the series, you’ll file the Certificate of Designation for Series form along with the $50 filing fee.
LegalZoom helps you handle every step—from choosing a business name to filing paperwork with your state.
Annual filing requirements for South Dakota LLCs
All South Dakota LLCs are required to file an annual report with the Secretary of State. This report updates the state of your LLC’s current status, such as your physical address and registered agent information. Here are important details regarding annual report due dates and costs:
- Due date. Reports are due on the first day of the anniversary month of your LLC formation and every year after that. For instance, if you filed your article on July 22, your annual report is due by July 1 every year.
- Cost. $55 for online filings; $70 for mail-in filings
- Where to file. Online or download, fill out, and mail in the PDF form
- Penalty for late filing. Late reports filed more than two months after the due date incur an additional $50–$55 fee. Additionally, your LLC could even lose its good standing status. Delinquent businesses may even be eventually administratively dissolved by the Secretary of State.
Never miss an annual report deadline when you use LegalZoom’s compliance filings services. Depending on the package you select, you can enjoy a range of services, from initial and annual report filings to license and permit management and more.
The cost of forming an LLC in South Dakota
The minimum cost to form an LLC in South Dakota is $150 to file the articles of organization. Additional costs vary depending on the services you choose.
Here’s the full breakdown of the costs involved with forming and maintaining an LLC.
- Articles of organization: $150 for online filing; $165 for paper filing
- Reservation of name: $25 (optional)
- Certificate of good standing: $20 (optional)
- Registered agent: $0–$500 annually (depending on if you use a professional service)
- Operating agreement: $0–$199 (depending on if you use a service)
- EIN: $0–$79 (depending on if you use a service)
- Annual report: $55 for online filing; $70 for paper filing
- Business licenses: Varies by type and issuing agency
- Business insurance: Varies by type and company
Overall, it costs anywhere from $150 to more than $770 to form and maintain a South Dakota LLC.
How to start your South Dakota LLC with LegalZoom
Your LLC formation in South Dakota doesn’t have to be complicated. LegalZoom simplifies the LLC formation process into just three steps:
- You complete a quick questionnaire. This gathers the key information needed to form your LLC.
- We file your LLC. We’ll submit your articles of organization and all required forms to the South Dakota Secretary of State.
- You receive your documents. Once your LLC is approved, LegalZoom will send you your articles of organization and any other documents you need to get started.
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South Dakota LLC FAQs
Do I need a business license for my South Dakota LLC?
South Dakota does not require a general statewide business license. However, you might need specific licenses or permits depending on your type of business, its location, or its activities. Industries like healthcare, food services, and construction often require special licenses or certifications. Certain local governments, like cities or counties, may also require businesses to have a local license or permit. Check federal, state, and local regulations to determine what you need.
How long does it take to form an LLC in South Dakota?
If you form your LLC online through the Secretary of State’s website, the processing time is typically immediate, and you’ll get your confirmation the same day. By mail, it may take 5–7 business days.
How do I correct LLC filing errors in South Dakota?
If you make an error on your LLC’s articles of organization or annual report, South Dakota allows you to correct it by filing an Application for Amended Articles of Organization with the Secretary of State and paying the $60 filing fee. You can update your LLC’s business name, registered agent, or other key details. Remember to act quickly—some errors, like having the wrong registered agent, could lead to legal trouble.
How do I dissolve a South Dakota LLC?
To dissolve a limited liability company in South Dakota, you must file articles of termination with the Secretary of State and pay the $10 filing fee. Before filing, make sure your LLC has fulfilled all financial obligations, including paying off any outstanding debts and filing final tax returns with the South Dakota Department of Revenue. You should also notify any creditors, clients, or partners of the dissolution to formally end business relationships.
LegalZoom offers varying levels of dissolution services to make the process of closing your business easy.
What are common South Dakota LLC mistakes to avoid?
Some common mistakes to avoid when forming and maintaining your South Dakota LLC include the following:
- Not considering the risks of serving as your own registered agent (e.g., privacy issues, risk of missing important documents, etc.)
- Skipping the operating agreement, even for single-member LLCs
- Not creating a compliance calendar to keep track of annual report, tax, business license, and other deadlines (or using a service like LegalZoom)
- Not researching which state and local taxes you need to register for and which licenses and permits are required to operate
Can I be my own registered agent in South Dakota?
Yes, you can serve as your own registered agent if you are a South Dakota resident, have a physical address in the state, and are available during business hours (generally 9 a.m.–5 p.m.).
Many business owners choose LegalZoom's registered agent services to protect their privacy and ensure they never miss important legal mail.
Rudri Bhatt Patel and Carolyn Albee contributed to this article.
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