You’ve got a brilliant business idea, but choosing the wrong legal structure could cost you thousands in taxes, expose your personal assets to creditors, or create unnecessary complications as you grow.

The business structure you select isn’t just paperwork – it’s a foundational decision that affects your liability protection, tax obligations, fundraising capabilities, and long-term flexibility.

In this article, I walk through the most common business structures, compare their pros and cons, and help you determine which one aligns best with your goals.

Why Your Business Structure Matters

A business structure is the legal framework that defines how your company operates, who owns it, and how it’s taxed. While you can change your structure later, doing so can involve significant costs, paperwork, and potential tax consequences. That’s why it’s critical to consider your options carefully from the start.

Sole Proprietorship

A sole proprietorship is an unincorporated business owned by a single individual who hasn’t filed paperwork to operate under a different legal form.^[1]

It’s the simplest business structure and one of the most common in the United States. If you start a freelance gig, consulting practice, or side business on your own without formally registering as something else, you’re automatically a sole proprietor. In essence, you and your business are legally one and the same.^[2]

Pros: The main advantage is simplicity. There are no formation documents to file, which means you can start working immediately.^[3] You have complete control over all business decisions since there are no other owners involved. Tax reporting is straightforward: you report your business income and losses on Schedule C of your personal tax return.

Cons: The biggest drawback is unlimited personal liability. Because you and the business are legally identical, you’re personally responsible for all business debts and obligations.^[4] If your business defaults on a loan, gets sued, or can’t pay its bills, creditors can go after your personal assets like your home, car, and savings. Additionally, raising capital is generally challenging because investors are hesitant to put money into sole proprietorships. You’ll also pay self-employment taxes on your earnings.^[5]

Best for freelancers, solo consultants, and low-risk businesses testing an idea. However, if your business becomes profitable, you plan to hire employees, or you’re concerned about liability exposure, you should consider transitioning to an LLC or corporation.

General Partnership

A general partnership is an unincorporated, for-profit business with two or more owners who haven’t filed paperwork to operate under a different legal structure.^[6] Just as a sole proprietorship is the default for one person, a general partnership is the automatic structure when two or more people go into business together.

Pros: General partnerships are less expensive and require less paperwork than forming an LLC or corporation.^[7] They offer flexibility through a partnership agreement, which can be written or oral (though written is strongly recommended).

This agreement allows partners to customize their arrangement, including profit distribution, decision-making authority, and responsibilities. The partnership enjoys pass-through taxation under Subchapter K of the Internal Revenue Code, meaning the partnership itself doesn’t pay federal income tax. Instead, profits and losses are allocated to partners according to the partnership agreement, and each partner reports their share on their personal tax return.^[8]

Cons: Like sole proprietorships, general partnerships carry unlimited personal liability. Each partner can be personally liable for partnership obligations.^[9] If the partnership takes out a loan it can’t repay, creditors can pursue any partner’s personal assets for the full amount.

Similarly, if one partner acts wrongfully or omits to act while conducting partnership business, any partner can be held personally responsible even if they weren’t involved. While creditors or a tort victim typically must exhaust partnership assets first, this offers minimal protection if the partnership lacks sufficient resources.

Best for businesses with two or three co-founders who trust each other, are comfortable sharing liability, and want to avoid the time and expense of forming an LLC or corporation.

Limited Liability Partnership

A limited liability partnership (LLP) is a for-profit business with two or more owners that has filed a statement of qualification with the state’s secretary of state office. The key distinction from a general partnership is that LLP partners are not personally liable for the partnership’s obligations.^[10]

Their liability is limited rather than unlimited. The structure otherwise functions similarly to a general partnership in terms of management flexibility and tax treatment.

Best for professional service firms like law practices, accounting firms, and medical groups where partners want liability protection while maintaining general partnership-style taxation and management structure.

Limited Liability Company

An LLC is a business entity created by filing articles of organization with the state’s secretary of state office.^[11] It has become one of the most popular structures for small to medium businesses because it combines liability protection with tax flexibility and operational simplicity.

Pros: LLCs provide owners (members) full liability protection. A member is not personally liable for the LLC’s debts or obligations. If the LLC fails, you might lose your investment in the company, but your personal assets remain protected. Tax flexibility is another major advantage. Multimember LLCs receive pass-through taxation similar to partnerships, while single-member LLCs are typically taxed like sole proprietorships by default. However, LLCs can also elect to be taxed as corporations if that’s more beneficial.^[12]

LLCs require less formality than corporations. You don’t need to hold annual meetings or keep formal minutes (although it can be good practice). You can customize your operating agreement to fit your specific needs and choose between member-managed or manager-managed structures.

Cons: Forming an LLC requires paying state filing fees. It can be best to have a written operating agreement, and you must designate a registered agent, which could be an officer, employee, or outside professional like an attorney.^[13] Single-member LLCs may face self-employment taxes similar to sole proprietorships.

Best for most small to medium businesses that want liability protection without corporate formalities. They’re particularly suitable if you value tax flexibility and don’t plan to seek venture capital funding in the near future.

Corporation

A corporation is a business entity created by filing articles of incorporation with the state’s secretary of state office.^[14] It’s a separate legal entity from its owners (shareholders), offering the strongest liability protection and greatest potential for raising capital.

Pros: Corporations provide the strongest liability shield. Shareholders are not personally liable for corporate debts or obligations.^[15] If the corporation fails, shareholders typically only lose their investment. Ownership is easily transferable through the sale of stock without dissolving the company. Corporations can raise capital more readily because angel investors and venture capitalists prefer this structure. The corporation also has indefinite duration, continuing beyond the involvement or lifetime of its founders.

Cons: C-Corporations face double taxation. The corporation pays taxes on its profits, and then shareholders pay taxes again when those profits are distributed as dividends. S-Corporations avoid this problem through pass-through taxation similar to partnerships,^[16] but they have strict ownership limitations.

All corporations require more paperwork and formalities. The corporation must draft a charter and bylaws, elect directors, appoint officers, issue shares, hold annual shareholder and director meetings, and maintain permanent minutes of those meetings.

Best for high-growth startups seeking venture capital, businesses planning to go public, and companies that need maximum liability protection and the ability to issue different classes of stock.

Key Factors to Consider When Choosing Your Business Structure

• Liability Risk: How much exposure does your business have to lawsuits or debts? Higher-risk businesses need stronger liability protection.
• Tax Situation: Consider your current income level, projected profits, and whether pass-through taxation or corporate taxation is more advantageous for your situation.
• Growth Plans: If you plan to seek investors or go public, a corporation is typically necessary. If you want to stay small, an LLC or sole proprietorship may suffice.
• Number of Owners: Solo ventures can be sole proprietorships or single-member LLCs. Multiple owners should consider partnerships, LLCs, or corporations.
• Administrative Tolerance: How much paperwork and formality are you willing to handle? Corporations require the most; sole proprietorships require the least.

Conclusion

There’s no one-size-fits-all answer when it comes to choosing a business structure. A freelance graphic designer has very different needs than a tech startup seeking venture capital. What matters is matching the structure to your specific situation, considering liability protection, tax implications, growth potential, and administrative burden.

Getting this decision right early saves you money, stress, and complications down the road.

Note: The information in this article is provided for general educational purposes and should not be construed as legal advice. Before making a final decision, business owners should consult with a business attorney or accountant who can evaluate unique circumstances and help you choose the structure that best protects interests and positions your business for success.

This article was originally published on the State Bar of Wisconsin’s Business Law Blog. Visit the State Bar sections or the Business Law Section webpages to learn more about the benefits of section membership.

Endnotes

[1] William K. Sjostrom, Business Organizations: A Transactional Approach, Aspen Publishers, fourth edition, 2023, p. 3. ↩

[2] Jane Haskins, Julia Rittenberg, Rob Watts, “What is a Sole Proprietorship?” Forbes, July 25, 2024. ↩

[3]Id. (noting, however, that if you don’t plan to use your own name as your business name, you will need to register a Doing Business As (DBA) name or Fictitious Business Name (FBN) depending on your state; and there may be forms if your business requires licensing). ↩

[4]Id. ↩

[5] Haskins, et al., “What is a Sole Proprietorship?” ↩

[6] Sjostrom, Business Organizations, p. 5. ↩

[7] Andrew Bloomenthal, General Partnerships Explained, Investopedia, Oct. 10, 2025. ↩

[8] Sjostrom, Business Organizations, p. 8. ↩

[9]Id. at 7. ↩

[10]Id. ↩

[11] Sjostrom, Business Organizations, p. 17. ↩

[12]Id. at 17-18. ↩

[13]Business Entity Frequently Asked Questions, Department of Financial Institutions. ↩

[14] Sjostrom, Business Organizations, p. 14. ↩

[15] Nancy Ashburn, “corporation (C corp),” Britannica Money. ↩

[16] Sjostrom, Business Organizations, p. 17. ↩