LLC vs. Corporation vs. Partnership

Most of my business clients wrestle with the same question: which entity structure should I choose? It is a deceptively simple question with consequences that ripple through your taxes, personal liability, capital raising, management flexibility, and ability to transfer ownership. Pennsylvania recognizes five main entity types, each with distinct advantages and pitfalls. The right choice depends on your risk profile, tax situation, growth plans, and the number of owners.

This page compares all five entity types side by side. If you have already settled on an LLC and want the full breakdown of the S-Corp tax election, including the breakeven math and reasonable salary rules, see LLC vs. S-Corp.

Limited Liability Company (LLC)

The LLC is the default choice for most small and mid-sized businesses in Pennsylvania, and for good reason. An LLC is formed by filing a Certificate of Organization with the PA Department of State (15 Pa.C.S. § 8821) for a $125 filing fee under § 153(a)(3)(i). The LLC provides personal liability protection: members are generally not personally liable for the company's debts solely because they are members (15 Pa.C.S. § 8834). You can still be liable for your own conduct, for debts you personally guarantee, or if a court pierces the veil, so the protection is not absolute. In Mortimer v. McCool, 255 A.3d 261 (Pa. 2021), the Pennsylvania Supreme Court recognized a narrow form of "enterprise liability," under which commonly owned sister entities may in limited circumstances be held liable for each other's debts, where fraud, wrongdoing, or great injustice is shown. The Court did not apply the theory to the entities before it in that case, since their ownership was not identical. Keeping each entity genuinely separate helps preserve the liability protection. Read more about the Mortimer decision.

An LLC is treated as a pass-through entity for federal income tax purposes by default. This means the business itself does not pay federal income tax; instead, profits (and losses) pass through to the members' personal tax returns. You pay tax on your pro-rata share of profits at your individual rate, avoiding the double taxation that corporations face. Pennsylvania personal income tax also generally follows this pass-through treatment.

Unlike a corporation, an LLC offers flexibility in management structure. You can be member-managed (all owners participate in decisions) or manager-managed (designated managers run the business while other members are passive investors). The operating agreement, while not legally required, is essential. Without one, the default rules in § 8815 et seq. apply, and they may not match your intentions regarding profit distribution, voting rights, transferability, and dissolution. Online formation services routinely file the Certificate but skip the operating agreement entirely, leaving the owners exposed.

Formation timeline: 1-2 business days for online filing. Ongoing requirements: An annual report ($7 filing fee under 15 Pa.C.S. § 153(a)(18)(ii)-(iii)) and a registered office in Pennsylvania, which may be your own address or that of a commercial registered office provider.

C-Corporation

A C-Corporation is the formal, traditional business entity. It is incorporated by filing Articles of Incorporation (15 Pa.C.S. § 1306) with a $125 filing fee under § 153(a)(1)(i). Like an LLC, it provides personal liability protection. But it differs fundamentally in taxation: a C-Corp is taxed as a separate entity at the corporate level on its net income. When profits are distributed to shareholders as dividends, those dividends are taxed again at the individual level. This is double taxation, and it is expensive.

Pennsylvania imposes a corporate net income tax currently at 7.49% (as of 2026, scheduled to decline annually to 4.99% by 2031 under HB 1342 (2022)). Add federal corporate tax (21% under current law) and individual dividend tax, and the combined rate can reach roughly 45 to 47 percent for an owner in the highest federal bracket. For small businesses, this is a deal-breaker.

However, C-Corps are preferred when you plan to reinvest profits back into the business (avoiding dividend distributions entirely), or when you are raising venture capital. Investors and venture firms understand C-Corp structure and prefer it. If you are building a company for institutional investment, a C-Corp is the expected path.

C-Corps also offer more formal governance: a board of directors, officer titles, bylaws, and shareholder protections. That formality can be valuable for external credibility and managing multiple shareholders with conflicting interests.

S-Corporation Election

An S-Corp is not a separate entity type; it is a tax election that can apply to either an LLC or a C-Corp. By filing IRS Form 2553, a business can elect to be taxed as an S-Corporation rather than as a C-Corporation or partnership. This avoids double taxation while retaining corporate liability protection.

Here is when an S-Corp makes sense: you have significant business income, and you are working actively in the business. The business pays you a reasonable W-2 salary, and the remainder of profits distributes to you (and other shareholders) as dividends, subject to self-employment tax only on the W-2 portion. The 15.3% self-employment tax rate applies only to net earnings up to the Social Security wage base ($184,500 in 2026); above that, only the 2.9% Medicare portion applies (plus a 0.9% additional Medicare surtax over $200,000). So the largest savings come from taking distributions below the wage base, where the full 15.3% would otherwise apply; on the portion above the wage base, the avoided self-employment tax is only about 2.9 to 3.8%. For a consultant earning $200,000 annually, the planning can still save thousands per year. The IRS scrutinizes S-Corp salary elections carefully (you must pay yourself a "reasonable" salary for the work you perform), but the planning opportunity is real.

S-Corps are limited to 100 domestic shareholders and generally cannot have corporate or partnership shareholders (certain trusts and tax-exempt organizations are permitted), which limits their utility for complex capital structures. Still, for a solo operator or a handful of passive investors, an S-Corp election on an LLC can be powerful.

General Partnership

If two people carry on a business for profit as co-owners without forming an LLC, corporation, or other filed entity, they are likely a general partnership under 15 Pa.C.S. Ch. 84, whether they intended to be or not. This is dangerous. In a general partnership, each partner is generally personally liable, without limit, for the partnership's debts and obligations. If the business is sued, if it defaults on a loan, if it causes injury to a third party, a creditor who obtains a judgment against a partner personally can generally reach that partner's personal assets, usually after partnership assets prove insufficient (15 Pa.C.S. §§ 8436, 8437).

General partnerships are also pass-through entities for tax purposes, so you avoid double taxation. But you get no liability protection, the trade-off is terrible. General partnerships are rarely advisable in modern practice. The only exception is a high-trust relationship where liability risk is minimal (e.g., two attorneys sharing an office, pooling resources but maintaining separate practices).

Dissolving a general partnership is also messier than dissolving an LLC. Partnership interests are harder to transfer, and unless you have a written partnership agreement, disputes over dissolution, profit-sharing, and forced buyouts can become costly.

Limited Partnership (LP)

A Limited Partnership is formed by filing a Certificate of Limited Partnership with the PA Department of State (15 Pa.C.S. § 8621) for a $125 filing fee under § 153(a)(3)(i). An LP has two classes of partners: general partners (who manage and bear unlimited liability) and limited partners (who invest capital and have liability limited to their investment).

LPs are common in real estate and investment fund structures. The general partner operates the property or fund and is personally liable; limited partners invest passively and keep their liability protection even if they participate in management and control of the partnership, under 15 Pa.C.S. § 8633. Profits and losses pass through to partners according to the partnership agreement.

LPs are cumbersome for operating businesses where multiple owners want management input. Pennsylvania has abolished the old "control rule"; under 15 Pa.C.S. § 8633, a limited partner keeps liability protection even while participating in management and control of the partnership. For most owner-operated businesses, an LLC is still simpler and more flexible.

Sole Proprietorship

A sole proprietorship requires no entity filing, but a business name other than your own generally must be registered under the Fictitious Names Act, subject to exceptions such as professional activities (54 Pa.C.S. § 303). The owner and the business are legally identical. There is no liability protection. For low-risk, minimal-revenue consulting (under $50,000 annually) with minimal third-party risk, a sole proprietorship is acceptable. For almost everything else, the $125 cost of forming an LLC is worth the protection it provides.

Entity Comparison at a Glance

* In an LP, the general partner generally has unlimited liability; limited partners have liability protection even while participating in management and control. The "Partial" label reflects the general partner's exposure only. A general partnership requires no state filing, and every general partner generally has unlimited personal liability; an LP is formed by filing a $125 Certificate of Limited Partnership.

Which Entity Makes Sense For You?

Choose an LLC if: You are starting a service business, retail, manufacturing, or any operating business with owner involvement. You want liability protection and tax simplicity. You have one to a few owners. You want flexibility in profit distribution and management. You may later elect S-Corp taxation to save on self-employment taxes. This covers 80+ percent of my small-business clients.

Choose an S-Corp election (on an LLC) if: You are a self-employed professional earning solid income (net profit of at least $60,000 a year as a rule of thumb, with $50,000 to $70,000 being a gray zone where the math depends on your specific costs), and you are actively working in the business. You want to reduce self-employment taxes while retaining the simplicity and flexibility of an LLC. You understand you must pay yourself a reasonable salary.

Choose a C-Corporation if: You are seeking institutional investment (venture capital, angel investors). You plan to retain most profits in the business for growth. You want formal governance structure and corporate credibility. You accept double taxation as a cost of capital-raising.

Avoid a General Partnership if: You are operating with a business partner. Form an LLC instead. You get liability protection and tax pass-through, with clearer governance through an operating agreement. The $125 cost is trivial compared to the risk.

Choose a Limited Partnership if: You are structuring a real estate investment or passive investment fund. You want passive investors (limited partners) without management authority. You have a sponsor (general partner) handling operations and bearing liability.

Pennsylvania-Specific Considerations

Pennsylvania taxes LLCs and S-Corps more favorably than other states. There is no LLC-specific income tax; LLCs are taxed on business income at the individual level (or corporate level if the LLC elects C-Corp taxation). Pennsylvania does not impose a franchise tax on LLCs. Pennsylvania's corporate net income tax currently stands at 7.49%, declining to 4.99% by 2031 under HB 1342 (2022), making C-Corp taxation less punitive than in some states.

Both LLCs and corporations must maintain a registered office in Pennsylvania under § 1507 (corporations) and § 8825 (LLCs). The registered office can be your own address or that of a commercial registered office provider, but the address must be in-state. This is a simple requirement but cannot be overlooked.

Legal and factual content on this page was last verified: Sep. 2026. If you are reading this significantly after that date, confirm key provisions with current statute text or contact our office.