LLC vs S-Corp vs C-Corp: Choosing the Right Structure

LLC vs. S-Corp vs. C-Corp: Which Structure Is Right for You?

Your entity structure determines how you pay taxes, how much self-employment tax you owe, whether you can raise equity capital, and how your business is valued at exit. Most business owners choose the wrong structure — not from bad judgment but from incomplete information at formation.

Single-Member LLC: The Default Starting Point

A single-member LLC with no tax elections is treated as a disregarded entity — all business profit flows directly to your personal Form 1040, Schedule C. Simple and low-cost to maintain, but every dollar of net profit is subject to self-employment tax at 15.3% on the first $176,100 (2025 figure). On $100,000 net profit, that is $15,300 in SE tax before any income tax.

S-Corp Election: The Most Valuable Move at $80K+ Profit

An S-Corp is not a separate legal entity type — it is a tax election filed with Form 2553, available to LLCs and corporations alike. Once elected, business income is divided into two components:

• Reasonable salary: Subject to full payroll taxes (both employer and employee FICA: 15.3% combined)
• Distributions: Pass through to your personal return — not subject to self-employment or payroll taxes

Example: $150,000 net profit. As an LLC: approximately $21,000 in SE tax. As an S-Corp with a $70,000 salary: approximately $10,700 in payroll taxes on salary, and $0 on the remaining $80,000 paid as a distribution. Annual tax savings: approximately $10,300.

S-Corp restrictions: Maximum 100 shareholders, all shareholders must be US citizens or US residents (disqualifies non-US resident owners), only one class of stock permitted, and no corporate shareholders. Incompatible with venture capital investment.

C-Corp: For Businesses That Will Raise Capital or Sell

A C-Corp pays a flat 21% federal corporate tax rate on profits. When profits are distributed as dividends, shareholders pay personal income tax on those dividends — the famous "double taxation." Despite this, the C-Corp is the only viable structure when:

• You plan to raise venture capital or angel investment — institutional investors will only invest in C-Corps
• You need to issue ISO (incentive stock options) to employees — only available to C-Corp employees
• You want Section 1202 QSBS protection: shareholders in qualifying C-Corps can exclude up to $10M in capital gains when they sell shares held for 5+ years
• You expect to reinvest most profits rather than distribute them — reinvested profits avoid the second layer of tax

Decision Guide

• Solo operator, profit under $50K: LLC, disregarded entity, Schedule C
• Self-employed, profit consistently above $80K: LLC with S-Corp election
• Multiple partners, no outside investment: Multi-member LLC or S-Corp
• Raising venture capital or building toward acquisition: Delaware C-Corp from day one
• Non-US resident: LLC (Wyoming or Delaware) — contact SK Financial for a free recommendation based on your goals

LLC vs C-Corp: The Definitive Guide for 2026

The LLC vs. C-Corporation decision is the most important structural choice you'll make when forming a U.S. business. Get it wrong and you either pay too much tax, or find yourself unable to raise money when the opportunity arrives.

How LLCs Are Taxed

A single-member LLC is taxed as a disregarded entity by default — meaning all business profits flow directly onto your personal tax return (Schedule C). A multi-member LLC is taxed as a partnership by default, with each member reporting their share of profits on their personal return.

This is called pass-through taxation and it avoids a second layer of tax at the entity level. However, the trade-off is that all net profit is subject to self-employment tax (15.3%) on top of income tax — until you elect S-Corp status.

The S-Corp Election for LLCs

An LLC can elect to be taxed as an S-Corporation (Form 2553). Once elected, the owner splits income into two buckets: a reasonable salary (subject to payroll taxes) and distributions (not subject to self-employment tax). This typically saves $5,000–$20,000 per year for business owners earning $80,000+ in net profit.

How C-Corps Are Taxed

A C-Corporation pays 21% flat federal corporate income tax on its profits before any distributions to shareholders. When profits are distributed as dividends, shareholders pay income tax again on those dividends — creating the famous "double taxation."

However, C-Corps that reinvest profits rather than distribute them avoid the second layer entirely. And if you're building a company you intend to sell, the Qualified Small Business Stock (QSBS) exclusion under Section 1202 can exempt up to $10 million in capital gains from federal tax — but only applies to C-Corp stock.

Choose an LLC If:

• You want simplicity and pass-through taxation
• You're profitable and want to minimize self-employment taxes via an S-Corp election
• You don't plan to raise equity capital from institutional investors
• You're a solo founder or small partnership
• You're a non-resident who wants the simplest compliant U.S. structure

Choose a C-Corp If:

• You plan to raise venture capital or angel funding (VCs only invest in C-Corps)
• You want to issue stock options to employees (requires a C-Corp cap table)
• You plan to build and sell a company and want QSBS tax protection
• You expect significant profits that will be reinvested, not distributed
• You're incorporating in Delaware for institutional investment

Bottom Line

For most small business owners, consultants, freelancers, and eCommerce sellers: form an LLC, elect S-Corp when profitable. For tech startups planning to raise money: form a Delaware C-Corp from day one. The conversion from LLC to C-Corp is possible but creates a taxable event — it's better to start with the right structure.