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What is an S-corp and What are the Advantages/Benefits of Forming One?

An S corporation (S-corp) is a type of business structure in the United States that combines elements of a traditional corporation (C corporation) with those of a partnership or sole proprietorship. The "S" in S corporation refers to the subchapter S of the Internal Revenue Code, under which qualifying corporations are taxed.

Key Characteristics and Features of an S-corp

1. Taxation

One of the primary advantages of an S corporation is that it is a pass-through entity for tax purposes. This means that income, deductions, and credits flow through the business to the individual shareholders. The corporation itself does not pay federal income taxes; instead, shareholders report their share of the income on their personal tax returns.

2. Limited Liability

Like a C corporation, an S corporation provides limited liability protection to its shareholders. This means that the personal assets of the shareholders are generally protected from the business's debts and liabilities.

3. Ownership Restrictions

S corporations have restrictions on ownership. They cannot have more than 100 shareholders, and those shareholders must be individuals, certain trusts, or estates. Non-U.S. residents, other corporations, and most partnerships are generally not eligible to be S corporation shareholders.

4. Single Class of Stock

S corporations can have only one class of stock. This means that all shareholders must have the same rights regarding distributions and liquidation proceeds.

5. Formation Requirements

To become an S corporation, a business must first qualify as a domestic corporation and then file Form 2553 with the Internal Revenue Service (IRS). This election must be made within a specific time frame after the corporation is formed.

6. Business Structure

An S corporation is suitable for small to mid-sized businesses and is often chosen by entrepreneurs who want the liability protection of a corporation combined with the pass-through tax treatment of a partnership or sole proprietorship.


Who Should Consider Starting an S-corp?

Starting an S corporation (S-corp) can be beneficial for certain types of businesses and entrepreneurs. Here are some considerations for individuals who might find forming an S-corp advantageous:

1. Small to Mid-sized Businesses

S corporations are often suitable for small to mid-sized businesses looking for a balance between the benefits of a corporation and the tax advantages of a pass-through entity.

2. Pass-Through Taxation Preference

Business owners who prefer the pass-through taxation structure may find the S-corp appealing. This structure allows income, deductions, and credits to pass through to individual shareholders, avoiding the double taxation that can occur with C corporations.

3. Limited Liability Protection

Entrepreneurs seeking limited liability protection for their personal assets may choose an S corporation. This structure helps shield personal assets from the business's debts and liabilities.

4. Professional Service Providers

Professionals such as doctors, lawyers, consultants, and accountants may find the S-corp structure beneficial. It allows them to enjoy the liability protection of a corporation while avoiding certain restrictions that apply to other pass-through entities like limited liability companies (LLCs).

5. Entrepreneurs with a Moderate Number of Shareholders

S corporations have restrictions on the number and type of shareholders. If the business is intended to have a limited number of shareholders (up to 100), and those shareholders are individuals, certain trusts, or estates, an S-corp could be a suitable choice.

6. Business Owners Wanting a Single Class of Stock

S corporations are restricted to having only one class of stock. For business owners who prefer simplicity in the ownership structure, an S-corp may be an attractive option.

7. Businesses Eligible for S Corporation Status

Certain types of businesses are eligible to elect S corporation status, including domestic corporations that meet the criteria outlined by the IRS. Consulting with a tax professional or legal advisor can help determine eligibility.

8. Owners Wanting to Avoid Self-Employment Taxes

S-corp shareholders who are actively involved in the business may have the opportunity to receive both a salary and distributions. This can potentially help them reduce their overall self-employment tax liability compared to being a sole proprietor or a member of an LLC.

It's important for potential S-corp owners to carefully consider their business goals, the number and type of shareholders, and their preferences regarding taxation and ownership structure. Consulting with legal and tax professionals is highly recommended to ensure compliance with regulations and to make informed decisions tailored to the specific circumstances of the business.

S-corp or LLC?

The choice between forming an S corporation (S-corp) and a limited liability company (LLC) depends on various factors, including the business's goals, structure, tax considerations, and management preferences. Here are key differences between an S-corp and an LLC to help you make an informed decision:

1. Taxation

S Corporation (S-corp) S-corps are pass-through entities for tax purposes. This means that business income, deductions, and credits flow through to the individual shareholders, who report them on their personal tax returns. S-corp shareholders may also receive both a salary and distributions, potentially allowing them to minimize self-employment taxes.

Limited Liability Company (LLC) By default, LLCs are also pass-through entities. Income is passed through to the individual members, who report it on their personal tax returns. However, LLCs have flexibility in their tax treatment and can elect to be taxed as a partnership, corporation, or S-corp, depending on the owners' preferences.

2. Ownership and Management

S Corporation (S-corp) S-corps have restrictions on the number and type of shareholders. They are limited to 100 shareholders, and those shareholders must be individuals, certain trusts, or estates. Additionally, S-corps must have a board of directors and hold regular meetings.

Limited Liability Company (LLC) LLCs offer more flexibility in terms of ownership and management. There are generally no restrictions on the number or type of members, and members can include individuals, corporations, other LLCs, or foreign entities. Management structures can be member-managed or manager-managed.

3. Formality and Compliance

S Corporation (S-corp) S-corps typically have more formalities and compliance requirements. These may include holding regular meetings, maintaining corporate minutes, and adhering to specific corporate governance procedures.

Limited Liability Company (LLC) LLCs are generally more flexible and have fewer formalities. While it's a good practice to have an operating agreement in place, the level of formality and ongoing compliance requirements are often less stringent compared to S-corps.

4. Liability Protection

S Corporation (S-corp) Like LLCs, S-corps provide limited liability protection. This means that the personal assets of shareholders are generally protected from the business's debts and liabilities.

Limited Liability Company (LLC) LLCs also offer limited liability protection. Members' personal assets are typically shielded from the company's debts and obligations.

5. Flexibility in Profit Allocation

S Corporation (S-corp) S-corps have limitations on the types of income and deductions that can be allocated among shareholders. The allocation of profits and losses is typically based on the number of shares owned.

Limited Liability Company (LLC) LLCs offer more flexibility in profit allocation. Members can agree on a specific distribution of profits and losses that may not be directly tied to their ownership percentage.

Ultimately, the decision between an S corporation and an LLC depends on the specific needs and goals of the business and its owners. Consulting with legal and tax professionals is crucial to making the right choice based on individual circumstances and preferences.

Should I Start an S-corp?

While an S corporation (S-corp) can be a beneficial structure for many businesses, there are certain situations and characteristics where forming an S-corp may not be the most suitable option. Here are some scenarios where individuals or businesses might consider alternative structures:

1. Ineligibility for S Corporation Status

Businesses that do not meet the eligibility requirements for S corporation status, as outlined by the Internal Revenue Service (IRS), should not pursue this option. For instance, having more than 100 shareholders or having ineligible shareholders such as non-U.S. residents, other corporations, or partnerships could disqualify a business.

2. Complex Ownership Structures

Businesses with complex ownership structures or those that intend to issue different classes of stock may find the S-corp structure limiting. S-corps are restricted to a single class of stock, and this simplicity may not suit businesses with intricate ownership arrangements.

3. Desire for Flexibility in Allocation of Profits and Losses

Businesses seeking more flexibility in the allocation of profits and losses among owners may find the S-corp structure restrictive. Limited liability companies (LLCs) offer greater flexibility in determining how to distribute profits and losses among members.

4. Preference for Fewer Formalities

If business owners prefer fewer formalities and less administrative burden, an S corporation may not be the best choice. S-corps often have more compliance requirements, such as regular meetings and maintenance of corporate minutes, compared to other business structures like LLCs.

5. Foreign Ownership or Investment

Businesses with foreign ownership or those seeking foreign investment may face restrictions with an S-corp. Non-U.S. residents and certain entities are generally not eligible to be shareholders in an S corporation.

6. Intention to Retain Earnings

If the business intends to retain a significant portion of its earnings for reinvestment or future business needs, an S-corp may not be the most tax-efficient choice. C corporations may offer more flexibility in retaining earnings at a lower tax rate.

7. Preference for Simplicity in Taxation

Businesses and owners who prefer a simple tax structure and do not want to deal with the complexity of allocating income and deductions among shareholders might find the pass-through taxation of an LLC or a sole proprietorship more straightforward.

8. Limited Growth and Funding Options

Businesses with plans for extensive growth, seeking venture capital, or intending to go public may find the limitations on the number and type of shareholders in an S-corp restrictive. Other structures, such as C corporations, may offer more flexibility in attracting investment.

It's crucial for individuals to carefully evaluate their specific business goals, ownership structure, and preferences in consultation with legal and tax professionals. Choosing the right business structure is a significant decision that should align with the long-term vision and operational needs of the business.

S-corp Qualifications & Requirements

S corporations (S-corps) in the United States have specific filing requirements that businesses must adhere to in order to maintain compliance with tax regulations and legal standards. Here are the key filing requirements for an S corporation:

1. Election of S Corporation Status (Form 2553)

To become an S corporation, a business must file Form 2553, Election by a Small Business Corporation, with the Internal Revenue Service (IRS). This election must be made within a specific time frame after the corporation is formed. Typically, it must be filed by the 15th day of the third month of the tax year for which the election is to take effect.

2. Annual Report (Form 1120S)

S corporations are required to file an annual income tax return using Form 1120S, U.S. Income Tax Return for an S Corporation. This form reports the corporation's income, deductions, credits, and other relevant financial information. The tax return is due by the 15th day of the third month following the end of the corporation's tax year.

3. K-1 Distribution to Shareholders (Schedule K-1)

Each shareholder of an S corporation receives a Schedule K-1, Shareholder's Share of Income, Deductions, Credits, etc., which reports their share of the corporation's income, deductions, and credits. Shareholders use this information when filing their individual income tax returns.

4. State Filings

In addition to federal filings, S corporations must comply with state tax requirements. This may include filing state income tax returns and other relevant forms as mandated by the state in which the corporation operates. State filing deadlines and requirements vary.

5. Employment Taxes (Form 941 and Form W-2)

S corporations with employees are responsible for withholding and paying employment taxes. This includes filing quarterly employment tax returns using Form 941, Employer's Quarterly Federal Tax Return. The corporation must also provide employees with Form W-2, Wage and Tax Statement, annually.

6. Annual Minutes and Corporate Records

While not a filing requirement with the IRS, S corporations are generally advised to keep up with corporate formalities, such as holding annual meetings of shareholders and directors and maintaining accurate corporate records. This helps demonstrate proper governance and can be important in certain legal situations.

7. State Business Renewals and Compliance

S corporations are often required to renew their business registration annually or biennially with the state in which they are incorporated. Compliance with state regulations, such as maintaining a registered agent and updating business information, is crucial.

It's essential for S corporations to stay informed about changes in tax laws and regulations, as these requirements may evolve. Seeking the guidance of a qualified tax professional or business advisor can help ensure that the corporation meets all necessary filing obligations and remains in compliance with federal and state regulations.

Starting an S-Corp Contents

Filing & Registration Service Companies

The following companies offer new filing and registered agent services across the country. In many cases, filing is free, plus state fees, with registered agent and other services being add-ons with associated fees.

Zen Business
Start an S-Corp | Registered Agent


Northwest Registered Agent
Start an S-Corp | Registered Agent


What You Need to Know

You can file your S-Corp paperwork yourself, or you can choose to work with a formation service like those listed above, but be sure you understand each point on this page going in. The companies listed are reputable companies, but surprises can occur if you don’t understand that each piece of the puzzle is often considered a separate billable service. Filing a new S-Corp does not automatically create an EIN, or grant state licenses or permits.

Decide on which state you will file in. If it’s your home state, decide if you will act as your registered agent or use a service.

Serial entrepreneur with 25+ years of startup
experience. Co-founded first startup in 1998.