Choosing between an LLC and a corporation is one of the most consequential early decisions a business owner makes, and it is one that far too many founders make based on incomplete information. Online formation services will happily set up whichever structure you click, but they will not tell you about the downstream consequences for taxes, investor relationships, and governance as your business grows.
The right answer depends on your specific situation. This article lays out the key differences across the dimensions that matter most, so you can have a more informed conversation with your attorney before you decide.
Liability Protection: Both Work
Both LLCs and corporations provide limited liability protection, meaning that the owners' personal assets are generally shielded from the debts and legal obligations of the business. This is a fundamental reason to form either structure rather than operating as a sole proprietorship or general partnership, where personal liability is unlimited.
The protection is not absolute in either case. Courts can "pierce the corporate veil" and hold owners personally liable if they fail to observe proper formalities, commingle personal and business funds, or use the entity to perpetrate fraud. Maintaining liability protection requires treating the business as a genuinely separate legal entity: separate bank accounts, separate finances, proper documentation of major decisions, and adherence to the governance requirements of your chosen structure.
Taxation: The Most Important Difference
This is where the LLC and corporation diverge most significantly, and where the right choice can have a substantial financial impact.
LLC Taxation
By default, a single-member LLC is taxed as a sole proprietorship and a multi-member LLC is taxed as a partnership. In both cases, there is no entity-level federal income tax. Profits and losses flow directly through to the members' personal tax returns, and members pay self-employment tax on their share of the income. This pass-through taxation avoids the double taxation issue described below.
Importantly, an LLC can elect to be taxed as an S corporation or C corporation without changing its legal structure. This flexibility makes the LLC a versatile vehicle for tax planning as a business grows and its income profile changes.
C Corporation Taxation
A standard corporation (taxed as a C corporation) pays federal income tax at the entity level, currently at a flat 21% rate. When profits are distributed to shareholders as dividends, shareholders pay tax again on those dividends at their individual rates. This is the "double taxation" that makes C corporations less attractive for small businesses that intend to distribute profits regularly.
However, C corporation status is often the right choice for venture-backed startups and businesses planning to raise institutional capital. C corporations can issue multiple classes of stock, including preferred stock with liquidation preferences and other features that investors expect. They are also eligible for qualified small business stock (QSBS) treatment under Section 1202, which can exclude up to $10 million in capital gains from federal tax when founders and early investors sell their shares.
S Corporation Taxation
An S corporation is a corporation that has elected pass-through tax treatment. Income flows to shareholders' personal returns without entity-level tax. The major limitation: S corporations can have no more than 100 shareholders, only one class of stock, and shareholders must be U.S. citizens or permanent residents. These restrictions make S corporations incompatible with venture capital investment structures.
If you plan to raise venture capital or seek institutional investment, you almost certainly need a Delaware C corporation. Most institutional investors will not invest in LLCs or S corporations, and converting later is possible but involves cost, complexity, and potential tax consequences.
Governance Requirements
Corporations carry more governance overhead than LLCs. A corporation is typically required to have a board of directors, hold annual meetings, maintain minutes of those meetings, and follow formal procedures for major decisions. These requirements are not optional formalities. Failing to follow them can undermine the liability protection the corporate structure is supposed to provide.
LLCs are governed by an operating agreement, which gives members broad flexibility to structure management, voting rights, profit distributions, and other terms however they see fit. There is no required board structure, no mandatory annual meetings, and considerably less procedural overhead. For a small business with a handful of owners who want to run things simply, this flexibility is genuinely valuable.
Investor-Readiness
If your business plans include raising money from outside investors, your entity structure matters to those investors as much as it does to you.
Venture capital funds are typically structured as partnerships with their own tax and compliance requirements. Most VC funds are restricted from investing in pass-through entities like LLCs and S corporations because it would create tax complications for the fund's own investors, particularly tax-exempt institutions like university endowments and pension funds. A Delaware C corporation is the industry-standard structure for companies seeking venture funding.
For businesses seeking angel investment, small business loans, or private equity rather than venture capital, LLCs can work well. But it is worth confirming the expectations of your specific investors before you form the entity.
Flexibility and Profit Distributions
LLCs have considerably more flexibility in how they allocate profits and losses among members. The operating agreement can provide for distributions that do not follow ownership percentages, and for special allocations of tax items. This makes LLCs well-suited for real estate investments, joint ventures, and businesses where the economic arrangement among owners is more complex than a simple pro-rata split.
Corporations can only distribute profits as dividends in proportion to share ownership (for the same class of stock). The ability to issue different classes of stock with different economic rights provides some flexibility, but the structure is less customizable than an LLC operating agreement.
Which Structure Is Right for You?
Some practical guidance based on common scenarios:
- Venture-backed startup: Delaware C corporation, almost without exception.
- Bootstrapped small business or professional services firm: LLC, with potential S corporation tax election once income is substantial enough to justify it.
- Real estate investment or joint venture: LLC, for maximum flexibility in economic arrangements.
- Family business with multiple owners: LLC with a carefully drafted operating agreement covering buy-sell provisions and succession.
- Business planning an IPO: C corporation, as going public requires corporate structure.
The most important thing to recognize is that the choice has real consequences that compound over time. Converting from one structure to another is possible, but it involves legal and tax costs and, depending on the circumstances, can trigger taxable events. Getting this right at formation is considerably less expensive than fixing it later.
Entity selection is a decision worth spending a few hours on with an attorney who understands both the legal and tax dimensions. The cost of that conversation is minimal compared to what it saves.