LLC Step Explainer · 2026-05-12

LLC vs Corporation: Key Differences, Tax Treatment & How to Choose (2026)

Choosing between an LLC and a corporation is one of the most consequential decisions for a new business. Both structures offer liability protection, but they differ fundamentally in taxation, ownership rules, formalities, and fundraising capacity. LLCs provide pass-through taxation and operational flexibility, while corporations (C-corps and S-corps) enable equity investment and have stricter governance requirements. Understanding these distinctions helps founders select the structure that aligns with their growth plans, tax strategy, and long-term vision.

What it is

A Limited Liability Company (LLC) is a state-created entity that shields owners (members) from personal liability while allowing profits and losses to pass through directly to members' personal tax returns. The IRS does not recognize the LLC as a distinct tax classification; instead, a single-member LLC is taxed as a sole proprietorship by default, and a multi-member LLC is taxed as a partnership, unless the LLC elects corporate taxation. LLCs are governed by an operating agreement and have minimal formalities—no requirement for a board of directors, annual shareholder meetings, or stock issuance. All 50 states and the District of Columbia authorize LLC formation, typically through the Secretary of State or equivalent office.

A corporation is a legal entity separate from its owners (shareholders) and exists in two primary federal tax forms: C-corporation and S-corporation. A C-corp is taxed at the entity level on its profits (currently 21 percent federal corporate tax under 26 U.S.C. § 11) and shareholders pay tax again on dividends, creating double taxation. An S-corp elects pass-through treatment under Subchapter S of the Internal Revenue Code (26 U.S.C. §§ 1361–1379), avoiding entity-level tax but subject to strict eligibility rules: no more than 100 shareholders, all of whom must be U.S. citizens or residents, and only one class of stock. Corporations must observe formalities including adopting bylaws, electing directors, holding annual meetings, and maintaining minutes. Corporations issue stock, which facilitates raising capital from venture investors and eventually going public, whereas LLCs issue membership interests that are less standardized and harder to trade.

The choice hinges on five factors: taxation (pass-through vs. double taxation or corporate deductions), fundraising needs (venture capital strongly prefers C-corps), ownership restrictions (S-corps limit shareholder count and type; LLCs have none), formalities (corporations require boards and meetings; LLCs do not), and exit strategy (C-corps are built for IPOs; LLCs are simpler for small teams or real estate holding). The IRS publishes guidance on entity classification at https://www.irs.gov/businesses/small-businesses-self-employed/business-structures and S-corp election at https://www.irs.gov/businesses/small-businesses-self-employed/s-corporations. State corporation statutes are codified in each jurisdiction's business code—for example, Delaware's General Corporation Law (8 Del. C. §§ 101 et seq.) and California's Corporations Code.

Where this matters most in practice: Delaware-specific rules. If you want to skip ahead, see compare top providers.

State variations

California (CA): California imposes an $800 annual minimum franchise tax on both LLCs and corporations, plus an additional LLC fee of $900–$11,790 based on total income over $250,000 (Cal. Rev. & Tax. Code § 17942). Corporations pay a franchise tax of 8.84% on net income. CA also requires S-corps to pay a 1.5% entity-level tax on income.
Delaware (DE): Delaware charges LLCs a flat $300 annual tax with no franchise tax, but corporations pay an annual franchise tax starting at $175 and scaling with authorized shares or assumed par value capital (8 Del. C. § 503). Many venture-backed startups incorporate in DE for its corporate-friendly Court of Chancery.
New York (NY): New York LLCs must publish notice of formation in two newspapers for six consecutive weeks (N.Y. Ltd. Liab. Co. Law § 206), costing $1,000–$2,000 in NYC. Corporations do not have this publication requirement. NY also imposes a corporate franchise tax and an LLC fee based on gross income.

Common mistakes to avoid

Assuming LLCs cannot choose corporate taxation. An LLC can elect to be taxed as a C-corp or S-corp by filing IRS Form 8832 or 2553. Many founders believe LLC taxation is fixed, but this flexibility is a core advantage of the structure.
Forming an S-corp without checking shareholder eligibility. S-corp status is automatically revoked if a non-U.S. person becomes a shareholder or if the company issues a second class of stock. Founders must verify compliance with 26 U.S.C. § 1361 before electing S treatment.
Choosing a C-corp solely for perceived prestige. C-corps carry double taxation and mandatory board formalities. Unless the business plans to raise institutional capital or go public, these costs often outweigh any branding benefit.
Neglecting to compare state-level taxes and fees. Some states impose franchise taxes or gross receipts taxes on corporations but not LLCs, or vice versa. California charges LLCs an $800 annual minimum tax plus a fee based on gross receipts, while Delaware has an annual franchise tax on corporations calculated by authorized shares or assumed par value.
Failing to document the ownership structure in writing. LLCs should adopt an operating agreement even when not required by state law; corporations must adopt bylaws and issue stock certificates. Oral or informal arrangements lead to disputes and IRS classification problems.

Frequently asked questions

Can I convert an LLC to a corporation later?

Yes. Most states permit statutory conversion by filing a certificate or articles of conversion with the Secretary of State, or you can form a new corporation and transfer LLC assets. The IRS treats conversion as a tax-free reorganization under certain conditions (Rev. Rul. 2004-59). Consult a tax advisor to preserve continuity of EIN and avoid acceleration of liabilities.

Which structure is better for raising venture capital?

Venture capital firms and startup accelerators overwhelmingly prefer C-corporations because they can issue preferred stock, stock options, and convertible notes with standardized terms. LLC membership interests are harder to price and less liquid. If you plan to raise institutional money, form a Delaware C-corp from the start.

Do I pay self-employment tax on LLC income?

Yes, if the LLC is taxed as a sole proprietorship or partnership (the default), members pay self-employment tax (15.3 percent for Social Security and Medicare) on net earnings. If the LLC elects S-corp taxation, only wages paid to members are subject to payroll tax; distributions are not, potentially lowering the tax burden (see IRS Topic No. 554).

What are the ongoing compliance requirements for each structure?

LLCs typically file an annual report and pay a state fee (varies by state; some have none). Corporations must hold annual shareholder and director meetings, maintain minutes, file an annual report, and in most states pay franchise or income taxes. Federal tax filings are Form 1065 (partnership LLC), Form 1120 (C-corp), or Form 1120-S (S-corp).

Can a corporation own an LLC, or vice versa?

Yes. A corporation can be a member of an LLC, and an LLC can own stock in a corporation. However, if an S-corp owns an LLC, the LLC is typically disregarded or treated as a qualified subchapter S subsidiary (QSub) to preserve S-corp status. Consult 26 U.S.C. § 1361(b)(3) and seek professional advice before layering entities.

Authoritative sources

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Next step

Once you've weighed the tax, fundraising, and governance trade-offs, the next step is to formalize your choice by filing formation documents with your state and obtaining an EIN from the IRS. AthenAI's step-by-step formation guide walks you through articles of organization (for LLCs) or articles of incorporation (for corporations), registered agent selection, and initial compliance filings. If you're leaning toward a corporation and plan to raise outside capital, consider Delaware incorporation and opening a business bank account with Mercury Bank to streamline equity management. Start your formation today to lock in liability protection and tax treatment for the current year.

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