How to Start an S Corp in South Dakota

(March 2025)

In This Article

Starting your S Corporation (S Corp) in South Dakota can be a credible move if you are looking to benefit from pass-through taxation while enjoying the liability protection of a corporation. Whether you’re a seasoned entrepreneur or a first-time business owner, understanding the specific steps and requirements to establish an S Corp in South Dakota is important for success.

This guide walks you through everything from choosing a unique business name to filing the necessary documents with the state, ensuring you start your S Corp on the right foot. With clear and actionable advice, you’re going to be ready to navigate the process and make the right choice for your new business venture.

1. Choose a Unique Business Name

To start an S Corp in South Dakota, choose a unique business name. Your business name not only represents your brand but also sets the tone for how customers perceive your company. When selecting a name, make sure it is distinctive and not similar to any existing business names in South Dakota. This can prevent potential legal issues and ensure your business stands out in the market.

You can search the South Dakota Secretary of State’s business database to see if the name you desire is available. Additionally, the name must include a corporate designator such as “Corporation,” “Incorporated,” or an abbreviation like “Inc.” This is a legal requirement to indicate your business structure.

2. File the Articles of Incorporation

To begin an S Corp in South Dakota, file the article of incorporation. File the document with the South Dakota Secretary of State. It includes essential information about your business, such as the corporation’s name, the purpose of the corporation, the number of shares authorized to be issued, and the name and address of the registered agent. You can file the Articles of Incorporation online or by mail, and there is a filing fee that you must pay. Once your Articles of Incorporation gets an approval, your business officially exists as a legal entity in South Dakota, allowing you to move forward with the other steps in setting up your S Corp.

3. Appoint a Registered Agent

To launch an S Corp in South Dakota, appoint a registered agent. A registered agent is an individual or a business entity that agrees to accept legal documents on behalf of your corporation. This can include service of process for lawsuits or other important state correspondence. The registered agent must have a physical street address in South Dakota (P.O. boxes are not allowed).

You can serve as your own registered agent, or you can hire a professional service to fulfill this role. Choosing a reliable registered agent ensures that you do not miss any critical legal notifications, which can have serious implications for your business.

4. Create Corporate Bylaws

To set up an S Corp in South Dakota, create corporate bylaws. While South Dakota does not require corporations to file their bylaws with the state, it is still essential to create them as they serve as a guiding document for how your business is going to operate. Bylaws typically outline the roles and responsibilities of directors and officers, how you conduct meetings, voting procedures, and how you issue and transfer shares. They also establish protocols for handling conflicts of interest and other corporate governance matters. Well-drafted bylaws provide clarity and help prevent disputes among shareholders, making it easier to manage your business effectively.

5. Obtain an Employer Identification Number (EIN)

To start an S Corp in South Dakota, obtain an  Employer Identification Number (EIN). This is a unique number the Internal Revenue Service (IRS) assigns to identify your S Corporation for tax purposes. It is similar to a Social Security number but for businesses. You need an EIN to open a business bank account, hire employees, and file federal taxes.

The process of obtaining an EIN is straightforward and you can do it online through the IRS website.

There is no fee to apply for an EIN, and you receive your number immediately upon completion of the application.

6. Hold an Organizational Meeting

To run an S Corp in South Dakota, hold an organizational meeting. This is typically the first meeting of the board of directors, and it is where you’re going to make key decisions about the corporation. During this meeting, you adopt the corporate bylaws, appoint officers, issue stock certificates to initial shareholders, and address any other essential business matters. Record the minutes of this meeting and keep them in the corporate records.

7. File Form 2553 with the IRS to Elect S Corp Status

To manage an S Corp in South Dakota, file Form 2553 with the IRS to elect the S Corp status. All the shareholders must sign the form and you must file it within 75 days of the corporation’s formation or within 75 days of the start of the tax year you wish the S Corp status to apply. Filing Form 2553 is crucial because it allows your corporation to be taxed as a pass-through entity, meaning the IRS passes the profits and losses through to the shareholders and reports them on their individual tax returns, avoiding the double taxation the traditional C Corporations face. Without this election, your corporation is going to default to C Corp status, which is not going to be as tax-advantageous for your situation.

8. Register for State and Local Taxes

To start an S Corp in South Dakota, register for state and local taxes. Depending on your business activities, this can include sales tax, use tax, and payroll taxes if you have employees. South Dakota is popular for its favorable tax environment, as it does not impose corporate income tax, personal income tax, or inventory tax. However, you still need to be aware of and comply with other tax obligations at the state and local levels. You can register for taxes online through the South Dakota Department of Revenue’s website.

9. Obtain Necessary Business Licenses and Permits

To kickstart an S Corp in South Dakota,. obtain necessary business licenses and permits. These can include general business licenses, professional licenses, health permits, or zoning permits. The requirements vary depending on your industry and location, so it’s essential to research what applies to your S Corporation. Failure to obtain the necessary licenses and permits can result in fines or even the closure of your business. Contact local government offices or visit their websites to learn about the specific licenses and permits required for your business.

10. Maintain Ongoing Compliance with State Requirements

To keep running an S Corp in South Dakota, maintain ongoing compliance with state requirements. This includes filing an annual report with the South Dakota Secretary of State, which provides updated information about your corporation and confirms that it is still in good standing. File the annual report by the end of the anniversary month of your corporation’s formation, and there is a filing fee associated with it. Additionally, you must keep accurate records, hold regular meetings of the board of directors and shareholders, and file any necessary tax returns.

Recap

Starting an S Corporation in South Dakota involves several key steps, beginning with choosing a unique business name that complies with state guidelines. You then need to file the Articles of Incorporation and appoint a registered agent to handle legal documents on your behalf. Creating corporate bylaws is essential for defining how your business it’s going to operate internally. Obtaining an Employer Identification Number (EIN) from the IRS is necessary for tax purposes. Holding an organizational meeting allows you to officially adopt bylaws and issue stock.

To secure S Corp tax status, file Form 2553 with the IRS. Additionally, you need to register for state and local taxes, obtain any necessary business licenses and permits, and ensure ongoing compliance with South Dakota’s requirements, such as filing annual reports and maintaining accurate records.

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