C-Corp vs LLC for Founders Who Might Raise

Form a Delaware C-corp if you will raise from VCs, grant options, or want QSBS. Form an LLC if you stay closely held, distribute profits, and skip preferred stock.

Both give limited liability. The C-corp federal rate is 21%, and stock issued after July 4, 2025 can exclude 50% of QSBS gain after three years.

Wilson Sonsini tells most startups to form a Delaware C-corp because venture funds need preferred stock and often cannot hold LLC units. Clerky: growth companies that will raise should incorporate; businesses that will distribute profits should stay an LLC.

This is not legal or tax advice. Entity choice is fact-specific.

Key Takeaways

• C-corp is best if you will raise institutional capital, issue preferred stock or SAFEs, run an option pool, or want QSBS.
• LLC is best if you stay closely held, will distribute real profits, and do not need a standard cap table.
• Tax is not the whole decision. Pass-through wins when you take money out. Double tax barely shows up while you reinvest.
• Conversion is cheap one way. LLC to C-corp is usually §351 plus a Delaware filing. C-corp to LLC is a complete liquidation.

C-Corp vs LLC: At a Glance

What Is a C-Corp?

You issue stock. The IRS taxes a C-corp as its own person on Form 1120, so you can create preferred, common, SAFEs, and an option pool without rewriting the company's constitution every round.

Silicon Valley Bank notes that more than two-thirds of the Fortune 500, and most high-growth tech startups, are Delaware entities. Conversion right before a financing is costly, so form on day 1.

Delaware is the jurisdiction overlay. If you want the documents VCs already know, you want a Delaware C-corp plus a registered agent in the state.

Strengths

1) Preferred stock, SAFEs, ISOs, and a vesting schedule sit on a standard cap table. Funds do not have to negotiate a custom operating agreement to buy "preferred."

2) Only C-corp original-issuance stock can be QSBS. That is the tax reason sophisticated founders accept entity-level tax.

3) Tax-exempt LPs (endowments, pensions) can hold C-corp stock without UBTI on operating income. Cooley GO marks UBTI as No for C-corps and Yes for partnership LLCs.

Weaknesses

1) The Code taxes twice if you distribute: 21% at the entity, then tax on dividends.

2) C-corp income is not QBI. You give up the 20% §199A deduction that OBBBA made permanent on July 4, 2025.

3) Walking the entity back to an LLC is a complete liquidation under §336 and §331.

What Is an LLC?

An LLC is a state entity. Federal tax is a separate election. The IRS does not treat "LLC" as a tax classification.

Default federal class follows membership. One member: disregarded, with profits on the owner's return (Schedule C for an individual). Two or more members: partnership, Form 1065 plus K-1s, and self-employment tax on each member's share.

Either can file Form 8832 and pay tax as an association on Form 1120. That election does not issue stock. The company is still an LLC.

Clerky is blunt: forming an LLC is not incorporation. You write the economics in an operating agreement, not in a certificate of incorporation.

Strengths

1) Profits pass through. You pay once. If the business is a qualified trade or business, §199A still deducts 20% after OBBBA made the deduction permanent.

2) Special allocations, vesting on units, and profit-splits can match how the company actually pays people. A C-corp has to fake that with salary, bonuses, and stock.

3) Delaware lets you convert to a corporation under §265 without dissolving. Tax is the work.

Weaknesses

1) LLC units are not QSBS. §1202 covers original-issue C-corp stock, so conversion starts the clock and pre-conversion built-in gain stays outside QSBS.

2) Every investor gets a K-1, and tax-exempt LPs take UBTI on pass-through operating income. Funds refuse the paperwork.

3) There is no standard option pool. "Preferred" in an LLC is a rewrite of the operating agreement. Transfer of membership interests is clumsier than stock.

S-Corp Is a Tax Election, Not a Third Entity

An S-corp is not a third box next to C-corp and LLC. You form a corporation or an LLC, then file Form 2553 so the IRS taxes it under Subchapter S. A timely S election includes the association election, so an LLC does not also need Form 8832.

The IRS limits are tight: domestic company, 100 or fewer shareholders, no partnerships, corporations, or nonresident aliens, and one class of stock. Preferred stock kills S. Wilson Sonsini notes that shares issued while S is in effect generally are not QSBS even after the election terminates.

If you will raise, skip S.

Tax Treatment: C-Corp vs LLC

On $1 million of corporate profit distributed to a high-income individual, the Tax Policy Center stacks 21% + 20% + 3.8% NIIT to 39.8%. A pass-through owner at 37% with QBI lands near 29.6%.

That comparison overstates the C-corp cost for a company that reinvests. Davis Wright Tremaine and Clerky both note that growth companies pay deductible salaries and retain earnings, so the second tax hardly hits until a dividend.

Form 8832 lets an LLC keep its state shell and pay as a C-corp. Line 2a generally blocks a new election if a prior election had an effective date in the last 60 months. The election cannot take effect more than 75 days before filing or more than 12 months after.

Winner: LLC, if you will distribute profits. Retain-and-reinvest startups mostly dodge the second tax, so tax alone should not pick the C-corp.

Investor Compatibility: C-Corp vs LLC

On r/startups, the recurring panic is forming an LLC in week one, then hearing that investors will not close into it. Practitioners treat conversion as paperwork until a real check appears, and as expensive once assets and people pile up.

Five reasons funds push you into a C-corp:

1) Preferred stock, SAFEs, and option pools assume a C-corp cap table. LLC "preferred" is a custom operating-agreement rewrite. Cooley GO marks ISOs as Yes for C-corps, limited for S, and no for LLCs.

2) K-1 factory plus UBTI: a partnership LLC allocates operating income to every member, so tax-exempt LPs take unrelated business taxable income. C-corp stock does not pass that income through, and funds refuse the compliance load.

3) QSBS is C-corp original-issuance stock only. That wedge got larger after July 4, 2025.

4) Transfer. Stock certificates and electronic cap tables move. Membership interests often need consent, right of first refusal, and a securities analysis on every transfer.

5) Delaware familiarity is about the DGCL and the Court of Chancery, not about "corporation" as a magic word. A Delaware LLC does not give investors the preferred-stock stack they already have in the form files.

Cooley GO marks "take public" as Yes for C, Yes-then-C for S, and No-without-incorporating for LLC.

If your next check is a friends-and-family wire into a two-person shop, none of this binds you yet. The first institutional funding stage is when the stack has to match the term sheet.

Winner: C-corp the moment a fund, SAFE, or option pool is on the table.

QSBS After July 4, 2025: C-Corp vs LLC

IRC §1202 lets a non-corporate taxpayer exclude gain on qualified small business stock: original-issue stock in a domestic C corporation, acquired for money, property, or services. LLC units do not qualify. An S election on the way through generally poisons stock issued while S was live.

The July 4, 2025 law (OBBBA) changed the dollars and the clock for stock issued after that date. Gunderson, WilmerHale, Wilson Sonsini, Vinson & Elkins, and The Tax Adviser agree on the new grid.

Cornell's posted USC text may still show the old statute. Use counsel for the 2025 figures, then confirm against updated Code.

Conversion starts the clock. Original-issuance stock exists only once the company is a C-corp. Orrick and Cooley GO treat pre-conversion appreciation as outside QSBS; the holding period starts at conversion.

Gunderson walks a related asset-test example. An LLC formed July 1, 2025 converts August 31, 2026 at $30 million FMV, then sells $40 million of preferred on December 31, 2026. That preferred can still be QSBS because the tax basis of gross assets stays under the $75 million cap (it would have failed the old $50 million cap).

The LLC-first exception. Orrick tax partner Eric Wall (January 2026) and Cooley GO treat starting as a partnership LLC, then converting, as a way to inflate 10× basis. Wall's shape: $1,000 in, $20 million FMV at conversion, $200 million exclusion cap versus $15 million if you had started as a C-corp.

The risks are the point. Pre-conversion gain is not QSBS.

You need post-conversion appreciation far above $15 million. Entire business FMV at conversion plus cash raised must still sit under the $75 million asset ceiling, and the 3-to-5-year clock starts at conversion. California does not conform.

Cooley still tells first-time founders to form a Delaware C-corp on day 1. An 8832-only LLC (taxed as a C-corp, still membership interests) is not automatic QSBS. If the goal is fundraising plus QSBS, use a statutory conversion, not just a tax election.

Winner: C-corp, because LLC units are ineligible. The conversion path can manufacture 10× basis for a narrow founder profile. It does not make the LLC itself QSBS.

Conversion Path: C-Corp vs LLC

Delaware publishes the paperwork both ways. Tax does not.

State filing. The Delaware Division of Corporations is the founder primary. LLC to Delaware corporation uses §265: certificate of conversion and certificate of incorporation filed together.

The conversion certificate fee is $184 plus $9 per extra page, plus the COI fee, plus franchise tax through the effective date.

Reverse conversion exists as §266 and §18-214. State filing is paperwork. Tax is the work.

Three methods. Wolters Kluwer groups the paths as dissolve-and-form (worst), inter-entity merger, and statutory conversion. Statutory conversion is one filing: same entity, new form. That is the path to ask counsel about.

Tax is not symmetric.

LLC to C-corp is usually planned as §351 (property, not services; stock, not boot; 80% control immediately after) and, if you are only changing tax class, Form 8832. The QSBS holding period starts now, and built-in gain at conversion is outside QSBS.

Davis Wright Tremaine prefers a January 1 effective date so you do not file a stub-year 1065 and a 1120 in the same calendar year.

C-corp to LLC is a complete liquidation. The corporation recognizes gain under §336 as if it sold the assets at FMV, and shareholders are taxed under §331. The Tax Adviser (2019) said the tax cost "normally will be prohibitive" even at a 21% corporate rate.

EIN. The IRS says you need a new EIN if you terminate an LLC and form a new corporation. You do not need a new EIN merely for changing the tax election to corporation or S.

A partnership that incorporates needs a new EIN. A corporation converting at state level without changing business structure does not. Leave the statutory-conversion edge case to counsel.

Winner: LLC, if convertibility is the test. LLC to C-corp is a planning exercise. C-corp to LLC is a taxable liquidation.

Formation and Ongoing Cost: C-Corp vs LLC

C-corp cost

• Stripe Atlas charges $500 once (government fees plus year-1 registered agent) and $100 per year for the agent after that.
• Delaware franchise tax is a tax on the entity existing. On r/startups, founders frequently treat the Authorized Shares Method default as a bill they owe. Recalculate on the state's assumed-par method rather than accepting that default.
• You file Form 1120 every year even with no revenue. Payroll, option paperwork, and board consents add cost once people other than the founders hold equity.

LLC cost

• State LLC filing fees vary. The expensive document is the operating agreement, not the articles.
• Multi-member defaults to a partnership return. K-1s are the annual tax cost.
• If you later need a C-corp, Delaware's conversion certificate is $184 plus the simultaneous COI. Counsel and any valuation sit on top of that.

Clerky says it has incorporated 20,000+ startups. Atlas and Clerky package the paperwork. They do not change the tax or investor analysis.

If You Already Formed the Other Entity

If you already formed the other entity, convert the LLC before assets and people pile up. Do not convert a valuable C-corp into an LLC to fix taxes: that liquidation bill is the expensive direction.

A repeat founder who will convert later to juice 10×-basis QSBS can start as a partnership LLC. Cooley still does not recommend that path for a first company.