LLC vs C-corp: which is right for your startup?

The first structural decision

Before you sign a customer, hire anyone or accept outside money, you have to decide what kind of company you are forming.

For most U.S. startups the choice comes down to two options: a limited liability company (LLC) or a C-corporation (C-corp). They differ on tax, fundraising, equity and day-to-day paperwork.

You can change your mind later. Many startups convert an LLC into a C-corp before a priced round. But a conversion costs legal fees, can have tax consequences, and means re-papering agreements with partners and investors, so it is worth choosing deliberately.

LLC: flexible and taxed once

An LLC is the usual choice for service businesses, solo founders and small partnerships that value simplicity.

Advantages

• Pass-through taxation. By default, LLC profits flow through to the owners' personal returns. There is no separate corporate income tax, so profits are taxed once.
• Flexible economics. The operating agreement can allocate profits differently from ownership. A 50/50 LLC can split profits 70/30 if the members agree and the allocation meets the tax rules.
• Lighter governance. No required board, annual shareholder meeting or stock certificates. The operating agreement sets how decisions are made.
• Liability protection. Like a corporation, a properly run LLC generally keeps business debts and claims away from the owners' personal assets.

Drawbacks

• Harder to raise venture capital. Most venture funds invest only in C-corps. Pass-through income creates tax problems for many of their own investors, and preferred stock terms are built for corporations.
• Self-employment tax. Members who work in the business usually owe self-employment tax on their share of profits.
• No incentive stock options. LLCs can't grant ISOs. They use profits interests or unit options instead, which employees understand less well and which take more care to administer.

Best for

Service firms, consulting practices, real estate holdings, small partnerships and profitable businesses that don't plan to raise institutional capital.

C-corp: the venture-backed standard

If you plan to raise from angels or venture funds, a C-corp (usually a Delaware one) is the default.

Advantages

• Investor-ready share classes. A C-corp can issue common and preferred stock with different rights, which is what standard venture term sheets expect.
• Stock options for employees. ISOs and non-qualified options are familiar to employees and have well-understood tax treatment.
• Room to grow. There is no cap on the number of shareholders, so later rounds, an acquisition or a public offering fit the structure.
• Possible QSBS exclusion. Section 1202 can exclude some or all of the gain on qualified small business stock. The rules changed on July 4, 2025. For stock issued after that date, 50% of the gain can be excluded after three years, 75% after four and 100% after five, up to the greater of $15 million or 10 times your basis, and the company's gross assets can be up to $75 million when the stock is issued. Stock issued earlier keeps the old rules: a five-year hold, the greater of $10 million or 10 times basis, and a $50 million asset limit. Eligibility depends on the business, the holder and how the stock was acquired.

Drawbacks

• Two layers of tax on distributed profits. Corporate profits are taxed at the federal corporate rate of 21%, and dividends are taxed again on shareholders' returns.
• More administration. Board consents, a stock ledger, annual reports and state filings are part of running a corporation.
• Less flexible profit sharing. Dividends follow each share class's rights. Within a class they are paid pro rata, so a C-corp can't allocate profits as freely as an LLC.

Best for

Venture-backed startups, companies that will grant stock options, and businesses aiming for an acquisition or IPO.

Side by side

Where the S-corp fits

An S-corp is not a separate entity type. It is a tax election that an eligible LLC or corporation can make. The owners are taxed on a pass-through basis, and an owner who works in the business takes a reasonable salary through payroll. Profits above that salary can be distributed without self-employment tax, which is why profitable small businesses often elect it.

The election has limits: no more than 100 shareholders, one class of stock, and shareholders who are generally U.S. citizens or residents (no partnerships, corporations or nonresident aliens). That makes it a poor fit for venture-backed companies.

Forming either one with HYVV

Hyper Formation forms LLCs and C-corps from one intake. HYVV’s agents and specialists handle the filings, applications and setup. You step in only where the law needs you — like an ID check — and watch each step land in your account.

The first governing document comes from the same answers: an operating agreement for an LLC, a stockholders agreement for a corporation. Documents are drafted from HYVV templates and the terms you set, signed inside HYVV, and stored with a SHA-256 fingerprint. For a corporation, the Startup tier adds founder shares with vesting and the 83(b) election. HYVV drafts the 83(b) election from the grant and tracks the 30-day clock. You sign it and mail it to the IRS.

If you have partners, agree roles, ownership and revenue in Foundation before you file, so those terms carry into the company from day one. Prices, timelines and what each tier includes are on the Hyper Formation page and pricing.