What is an S Corp: Everything You Need to Know and More

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Ready to step into the business world but puzzled by terms like ‘S Corp’, ‘LLC,’ and ‘sole proprietorship’? Don’t worry; you’re in the perfect spot. Here at LLCBase, we’re on a mission to make this journey as smooth as possible for you, starting with a comprehensive, reliable guide to understanding the increasingly popular concept of S Corporations, or, as it’s commonly known, S Corp. 

Knowledge is your best ally in the quest to establish a successful business. Just like starting an LLC, an S Corp can be an excellent route, combining many of the advantages of a corporation with the simplicity of a pass-through tax system. For all aspiring entrepreneurs, please grab a cup of coffee, get comfortable, and join us as we demystify the world of S Corps. Buckle up; you’re in for quite an enlightening ride! 

What is an S Corp

An S Corp is an appealing option for small to mid-sized businesses in the United States, where owners seek to limit their personal liability while enjoying the benefits of a corporation structure. As a separate legal entity from its owners (shareholders), an S Corp can enter into contracts, own assets, sue, and be sued externally. Also, it provides owners with a cushion of protection against business debts and obligations; shareholders usually are not personally responsible.

Despite these benefits, this type of corporate structure has certain limitations. For instance, it can have up to 100 shareholders, all of whom must be U.S. citizens or residents, and cannot be owned by other corporations or partnerships. The primary advantage of an S Corp lies in its unique taxation structure. The ‘S’ in S Corp is derived from Subchapter S of the Internal Revenue Code, which outlines how these corporations are taxed. Instead of imposing a federal income tax on the corporation, the IRS allows income, deductions, losses, and credits to pass directly to the shareholders.

Hiring one of the best LLC formation services for your S Corp brings expertise and experience in navigating the unique requirements and regulations of forming and managing this entity. They can offer valuable guidance on structuring your S Corp, optimizing tax benefits, and ensuring compliance, allowing you to focus on running and growing your business with peace of mind.

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Top Things You Need to Know About S Corps

S Corps have many unique features. For example, they must have only one class of stock and are limited to no more than 100 shareholders. They may not include non-residential alien shareholders, and all shareholders must be individuals, estates, exempt organizations, or certain trusts. Furthermore, they are regulated by a specific Internal Revenue Code and IRS regulations. 

Here are the top things that you should know about S Corporation:

1. Limited Liability and Profit-Sharing

An S Corporation, or S Corp, offers certain benefits such as liability protections similar to those of a corporation. Shareholders in an S Corp are not personally liable for the company’s debts and obligations; however, they may be held accountable for their personal negligence or misconduct. For an S Corporation, profits and losses can pass through to shareholders’ personal income without facing corporate tax rates, thereby avoiding the double taxation issue that C Corporations face.

2. Shareholders and Management

S Corporations have features of both corporations and partnerships. However, unlike most partnerships, management decisions in an S Corp are typically made by a board of directors elected by the shareholders. An S Corporation can have a maximum of 100 shareholders, who must be U.S. citizens or resident aliens. It’s important to note that S Corporations are restricted to only one class of stock, which may not be attractive to certain investors.

3. Scope and Benefits

S Corporations are commonly used by small to medium-sized businesses as they offer limited liability protection and pass-through taxation. They are ideal for businesses with a small number of owners or those wanting to protect their personal assets separate from their business. Though they require more paperwork and regulations than a Limited Liability Company, S Corporations are less administratively burdensome than C Corporations. Like any business structure, S Corporations have advantages and disadvantages, and it is important to analyze your business needs before forming an S Corporation.

4. Bylaws

The Bylaws in an S Corporation are similar to the operating agreement in an LLC. They outline each shareholder’s responsibilities, profit share, and procedures for withdrawal or dissolution. They also dictate how the S Corporation is to be run. Even though not all states require such bylaws, it’s essential to outline expectations and prevent potential conflicts.

5. Changes in an S Corporation

Changes in an S Corporation, such as the departure or addition of a shareholder, typically require amendments to the bylaws. Also, an S Corporation must report the changes to the IRS and state agencies through annual reporting. An S Corporation continues to exist regardless of changes in shareholders. Thus, an S Corporation can be a stable business structure. Establishing procedures for managing changes in shareholders in the bylaws is critical.

  • Limited Liability: Protects owners’ personal assets from business debts and losses.
  • Pass-Through Taxation: Avoids double taxation faced by C Corporations; profits and losses pass directly to the owner’s personal tax returns.
  • Credibility: More credibility with clients, suppliers, employees, and investors than sole proprietorships or partnerships.
  • Restrictions on Shareholders: Limited to a maximum of 100 shareholders, all of whom must be U.S. citizens or residents.
  • Single Stock Class: S Corps can only issue one class of stock, potentially limiting investment opportunities.
  • Increased Regulation: More paperwork and administrative management are required compared to other business types, like LLCs.

Getting Started with Your S Corp

Follow this comprehensive guide if you’re planning to establish an S Corp:

Step 1: Choose a Name

Selecting a unique and distinguishable name for your S Corp is crucial for branding and legal purposes. To ensure that your chosen business name still needs to be used, use relevant online databases for your business name search.

Step 2: Reserve Your Business Name (optional)

If the name you desire is available, it’s often a prudent step to reserve it to prevent any others from claiming it during your business formation process. Name reservations usually have a fee and a validity period – this varies by jurisdiction, so check your local regulations for details.

We recommend reserving your business name with a reliable business formation service like LegalZoom. With their help, you can reserve your business name with ease and efficiency.

Step 3: Appoint a Registered Agent

A registered agent is responsible for receiving official correspondence and legal documents on behalf of your S Corp. They must have a physical address within the region of your business and be available during regular business hours. Appoint a trusted registered agent like LegalZoom to assist you with your business’s overall compliance and representation.

Step 4: File Articles of Incorporation

Articles of Incorporation are legal documents that officially establish your S Corp. They are typically filed with the relevant government agency. The information required includes your business name, the agent for service of process details, your business purpose, and the number of authorized shares.

Step 5: Obtain an EIN

An EIN is a unique identification number assigned to your S Corp for tax filing, reporting, and conducting other vital business transactions. These can be applied online through the relevant governmental websites or alternatively by fax or mail. With a reliable business service like LegalZoom, you can navigate the application process with ease and accuracy, ensuring that your EIN is obtained promptly and with minimal effort.

Step 6: Submit Form 2553

To elect S Corp status for your enterprise, you need to file Form 2553. This form provides specifics about your company’s shareholders and confirms your business meets the eligibility requirements for S Corp status. It must be submitted within a prescribed time, usually within several days of your business formation.

Step 7: Register for Taxes

Depending on your business type and location, you might be required to register for various taxes. Registering with the relevant tax administration ensures you adhere to all tax laws and obligations.

Step 8: Obtain Licenses and Permits

You may need to acquire specific licenses and permits based on your industry and location to legally operate your S Corp. These could comprise professional licenses, zoning permits, health department permits, etc. Undertake detailed research to identify all necessary licenses and permits and apply through appropriate agencies.

A professional service like LegalZoom can guide you through the process, handling all the necessary paperwork, research, and communication with regulatory agencies to obtain the licenses and permits you need to operate legally and avoid any potential compliance issues.

Step 9: Set Up a Business Bank Account

Setting up a dedicated bank account for your S Corp assists in maintaining clear financial records and separating your personal finances from business ones. This account should be used for all business transactions. Adequate financial management is crucial for maintaining your S Corp’s standing and ensuring accurate tax reporting.

U.S. Income Tax Return 

For taxation purposes, S Corporations, commonly called S Corps, follow particular guidelines outlined by the Internal Revenue Service (IRS). An S Corp must annually file IRS Form 1120S, also commonly named U.S. Income Tax Return for an S Corporation. This complex form details the S Corp’s income, deductions, and other financial data for the fiscal year. The form is not meant to calculate the tax liability of the S Corp itself; rather, it essentially “passes through” the company’s financial status to the shareholders.

One crucial component of Form 1120S is Schedule K-1. This schedule is prepared for each shareholder, outlining their pro-rata share of the S Corp’s income, losses, deductions, and credits. The shareholders then use this information to report their share of the S Corp’s income on their personal tax returns. This pass-through taxation feature is a distinct advantage of S Corps, helping to avoid the double taxation scenario that traditional corporations, or C Corps, often face.

Understanding that tax laws and guidelines are complex and contain numerous exceptions and special rules is crucial. Therefore, while S Corps offers many desirable benefits, it’s strongly recommended that individuals consult with a tax professional or financial advisor before deciding on this business structure. These professionals can provide guidance tailored to individual circumstances and help navigate the complexities of tax compliance.

S Corp vs. Sole Proprietorship

An S corporation (S Corp) and a sole proprietorship are two different business structures with distinct benefits for their owners. Like other types of corporations, an S Corp provides its owners (or shareholders) with liability protection. This means the owners are typically not personally responsible for the company’s debts and liabilities.

In an S Corp arrangement, the corporation’s income, losses, deductions, and credits flow to shareholders’ personal income tax returns. This pass-through taxation structure allows S Corp owners to avoid double taxation on corporate income, which is a significant advantage for many business owners.

On the other hand, a Sole Proprietorship is the simplest and most common structure chosen to start a business. It is an unincorporated business owned and run by one individual without distinction between the business and the owner. In this setup, the owner is entitled to all profits, but conversely, they are also responsible for all the business’s debts, losses, and liabilities. As for taxation, the business itself is not taxed separately in a Sole Proprietorship.

Instead, all profits and losses are reported on the personal income tax return of the sole proprietor. The owner pays personal income tax on profits earned from the business. This can be more straightforward regarding paperwork but could also lead to higher personal income tax bills, especially if the business is profitable.

S Corp vs. LLC

S Corporations and Limited Liability Companies (LLCs) represent two commonly used business structures with unique advantages and compliance requirements. One of the positive aspects they share is the dual benefit of limited liability protection, which shelters their owners’ personal assets from business debts and claims, and pass-through taxation, avoiding the scenario of double taxation that regular or ‘C’ corporations can incur. 

However, while S Corps and LLCs have similarities, striking differences exist. An S Corp is more restrictive concerning its ownership. According to IRS rules, an S Corp can have a maximum of 100 shareholders, all of whom must be U.S. citizens or residents. Also, unlike an LLC, it cannot be owned by trusts, other corporations, or partnerships.

Moreover, S Corps can only have one class of stock, meaning it cannot assign different voting rights to different stocks. On the contrary, an LLC can have unlimited members and consists of multiple classes of membership interests, and these members can be individuals, trusts, corporations, or even other LLCs. 

Furthermore, S Corps are subjected to more stringent compliance formalities. They must adopt bylaws, issue stock, hold regular meetings, and keep meeting minutes, among other requirements. This contrasts with LLCs, which are typically less formal and more flexible in management and organization. However, LLCs are only partially without formalities; they are often required to file operating agreements and annual reports in some states. While both structures provide valuable benefits, choosing between an S Corp and an LLC will depend on an individual business’s specific needs and circumstances.

S Corp vs. C Corp

S Corporations (S Corps) and C Corporations (C Corps) are similar in their organizational structure; both provide their owners with limited liability protection, meaning the owners are not personally held responsible for business debts and liabilities. This structure separates the owner’s personal assets from those of the company. Both S Corps and C Corps must also adhere to similar corporate formalities, such as holding regular board and shareholder meetings, keeping minutes of these meetings, and maintaining separate records for the company.

However, where they greatly diverge is in their respective tax treatments. For C Corps, the traditional corporation structure, profits are subject to double taxation. Firstly, the corporation’s income is taxed at the corporate level, and secondly, any dividends distributed to shareholders are taxed again on the shareholders’ individual income tax returns. This is where S Corps have an advantage.

S Corps are ‘pass-through’ entities for tax purposes, with the corporation’s income, losses, deductions, and credits passing directly onto the shareholders. The income is only taxed once at the shareholder’s individual rate when reported on personal tax returns. This advantage makes the S Corp entity an attractive choice for small businesses and entrepreneurs looking to mitigate the likelihood of double taxation. 

The choice between an S Corp or C Corp will depend largely on the broader business goals, the number and type of shareholders involved, the desired tax implications, and the planned distribution of profits. An informed decision in this regard can significantly impact a business’s overall financial and operational dynamics.


What is an S Corp?

An S Corp, or S Corporation, is a type of corporation that meets specific Internal Revenue Code requirements. The “S” refers to a provision of the Internal Revenue Code.

What is the main feature of an S Corp?

The main feature of an S Corp is its limited liability and profit-sharing capabilities.

What is the scope of operation for S Corps?

The scope of operation for S Corps is quite broad and includes many business activities. However, some specific sectors, like certain financial services and international sales, might face restrictions.

What are the benefits of an S Corp?

The benefits of an S Corp include protection against liability, tax savings, easy transfer of ownership, and enduring life.

Who are the shareholders of S Corps?

Shareholders of S Corps can be individuals, certain trusts, and estates. However, they must be U.S. residents.

How does management work within S Corps?

S Corps are managed by its directors and officers. The shareholders elect the board of directors, who appoint the officers.

What are the bylaws of an S Corp?

Bylaws in an S Corp govern the corporation’s operation and management. They include details on stockholder meetings, the composition of the board of directors, and decision-making processes.

Can there be changes in an S Corp?

Yes, changes can occur in an S Corp for various reasons like new shareholders, changes in profit, or business operations.

How do I start an S Corp?

Starting an S Corp involves choosing a business name, appointing directors, filing the Articles of Incorporation, developing bylaws, obtaining necessary licenses and permits, and filing Form 2553 with the IRS.

How does an S Corp differ from a sole proprietorship?

An S Corp differs from a sole proprietorship in structure, taxation, and liability. While a sole proprietorship has one owner who pays personal taxes on profits and is personally liable for all debts, an S Corp has shareholders who aren’t liable for corporate debts and losses.

How does an S Corp stand in comparison to an LLC?

Both S Corp and LLC offer limited liability protection, but there are differences in management, ownership restrictions, and tax implications. An S Corp is more structured and limits the number and types of shareholders, but it offers more tax flexibility.

How does an S Corp match up against a C Corp?

While both are separate legal entities and offer limited liability protection, the main difference lies in taxation. S Corps avoid double taxation because corporate income, losses, deductions, and credits are passed to shareholders for federal tax purposes. C Corps, however, are subject to double taxation if corporate profits are distributed to owners as dividends.

What are the tax implications of S Corps?

S Corps do not pay income taxes. Instead, the corporation’s income or losses are divided and passed to its shareholders, who must report the income or loss on their income tax returns.

Can anyone open an S Corp?

While most people can open an S Corp, there are restrictions. For instance, certain financial institutions, insurance companies, and international sales corporations are prohibited from forming S Corps.

How many shareholders can an S Corp have?

An S Corp can have up to 100 shareholders.

Does an S Corp have a board of directors?

Yes, S Corps do have a board of directors that shareholders elect.

Are S Corp shareholders subject to double taxation?

No, S Corp shareholders are not subject to double taxation. The corporation’s profits and losses are passed through to their personal income tax, avoiding corporate tax rates.

Who manages the daily affairs of an S Corp?

The daily affairs of an S Corp are managed by its officers appointed by the board of directors.

Are there any restrictions on owning an S Corp?

Yes, S Corps have quite a few ownership restrictions. It cannot have over 100 shareholders; all shareholders must be U.S. citizens or residents.

Do S Corps have an unlimited lifespan?

Yes, S Corps have an indefinite lifespan and continue to exist even if a shareholder dies or sells shares.


So there you have it—a broad yet detailed view of an S Corp and the role it could potentially play in your business endeavors. With benefits like limited liability and pass-through taxation, it’s no wonder why so many small businesses opt for this favored business structure. Yet, like every business decision, weighing the pros and cons is essential, considering your unique situation and long-term business goals.

The world of S Corps can sometimes feel like a labyrinth, but with the right guidance, it’s a maze you can easily navigate. LLCBase is here to light the way for you. Visit LLCBase for more comprehensive and reliable information on S Corps and other business structures. Remember, knowledge is power, especially when making informed decisions for your business journey. Happy venturing!

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