LLC vs S-Corp vs C-Corp — Which Is Right?
Last reviewed: January 2026
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The business entity you choose affects your personal liability, tax obligations, ability to raise capital, and administrative burden. An LLC provides liability protection with flexible tax treatment and minimal formality, making it the most popular choice for small businesses — over 2.5 million LLCs are formed annually in the U.S.[1] Electing S-Corp status can save significant self-employment taxes once profits exceed $40,000-$50,000 per year, because only the reasonable salary portion is subject to FICA — not distributions.[2] C-Corps face double taxation (corporate tax on profits + personal tax on dividends) but are required for VC funding and offer unlimited growth potential through stock issuance.[3] Use the Self-Employment Tax Calculator to see the FICA savings from S-Corp election.
⚖️ Legal Disclaimer: Entity selection has significant tax and legal implications. This is educational guidance. Consult a CPA and business attorney before forming your entity.
| Entity Type | Liability Protection | Tax Treatment | Complexity | Best For |
|---|---|---|---|---|
| Sole Proprietorship | None | Personal return (Sch C) | Lowest | Freelancers, side hustles |
| Single-Member LLC | Yes | Personal return (Sch C) | Low | Solo businesses wanting protection |
| Multi-Member LLC | Yes | Partnership (1065) | Moderate | Partnerships, real estate |
| S Corporation | Yes | Pass-through (1120-S) | Higher | Profitable small businesses |
| C Corporation | Yes | Corporate (1120) + dividends | Highest | VC-backed, growth companies |
Formation costs vary dramatically depending on where you incorporate or form your LLC. Delaware is the most popular incorporation state for C-Corps due to its business-friendly Court of Chancery and well-established legal precedents, but its franchise tax can be costly for larger companies. Wyoming and Nevada attract LLCs with no state income tax, no franchise tax, and strong privacy protections — Wyoming allows single-member LLCs to be managed anonymously. However, forming in another state means registering as a foreign entity in your home state anyway, doubling annual fees. For most small businesses, forming in your home state is the most practical and cost-effective approach.
| State | LLC Filing Fee | Annual Fee | State Income Tax | Notable Feature |
|---|---|---|---|---|
| Wyoming | $100 | $60 | None | Strongest privacy protections |
| Delaware | $90 | $300 | 8.7% corporate | Best corporate law framework |
| Nevada | $425 | $350 | None (commerce tax applies) | No personal income tax |
| Texas | $300 | $0 | Franchise tax (margins) | No annual report for LLCs |
| California | $70 | $800 minimum | Up to 13.3% | Highest annual minimum fee |
| New York | $200 | $9 biennial | Up to 10.9% | Requires newspaper publication ($500-$2,000) |
The tax treatment of your business entity determines how much of your revenue you keep. Sole proprietors and single-member LLC owners pay self-employment tax (15.3%) on all net business income up to the Social Security wage base, plus income tax at their marginal rate. A sole proprietor earning $100,000 in net profit pays roughly $14,130 in self-employment tax alone, before income tax. An S-Corp owner earning the same amount might pay themselves a $60,000 salary (subject to FICA) and take $40,000 as a distribution (not subject to FICA), saving approximately $6,120 in self-employment taxes annually. C-Corps face a flat 21% corporate tax rate on profits, but shareholders pay additional tax when profits are distributed as dividends — qualified dividends are taxed at 0%, 15%, or 20% depending on the shareholder's income bracket. The Qualified Business Income (QBI) deduction allows eligible pass-through entity owners to deduct up to 20% of qualified business income, effectively reducing the top tax rate on business income from 37% to 29.6% for qualifying taxpayers.
Liability protection is often the primary reason business owners form an entity rather than operating as a sole proprietor. Without an entity, your personal assets — home, savings, vehicles, investments — are fully exposed to business debts and lawsuits. An LLC or corporation creates a legal barrier between business liabilities and personal assets, but this protection is not absolute. Courts can "pierce the corporate veil" and hold owners personally liable if they commingle personal and business funds, fail to maintain adequate capitalization, don't follow corporate formalities, or use the entity to commit fraud. To maintain strong liability protection, keep separate bank accounts, document all business decisions in writing, maintain adequate business insurance, avoid using business funds for personal expenses, and ensure the business is adequately capitalized for its operations. General liability insurance ($400-$1,500 per year for most small businesses) provides an additional layer of protection beyond the entity structure itself.
Business entities are not permanent decisions — you can restructure as your business evolves. Common transition points include converting from sole proprietorship to LLC when revenue exceeds $30,000-$50,000 or when you take on liability-creating activities, electing S-Corp taxation when net profit consistently exceeds $40,000-$50,000 and the FICA savings justify payroll administration costs, converting to a C-Corp when seeking venture capital or planning an IPO since investors typically require C-Corp structure for equity distribution, and dissolving an entity when closing a business which requires filing dissolution paperwork and settling all debts. The IRS allows LLCs to elect S-Corp or C-Corp tax treatment without changing the underlying legal entity by filing Form 2553 (S-Corp election) or Form 8832 (C-Corp election). This flexibility means you can keep the operational simplicity of an LLC while gaining the tax advantages of corporate taxation. For detailed tax comparisons, see our Self-Employment Tax Calculator and Quarterly Tax Calculator.
Many entrepreneurs make costly entity selection mistakes that are expensive to correct later. Choosing a C-Corp for a small business without plans to raise venture capital creates unnecessary double taxation and administrative burden — quarterly board minutes, annual shareholder meetings, and separate corporate tax returns add $2,000-$5,000 in annual compliance costs. Conversely, operating as a sole proprietorship once revenue exceeds $50,000 leaves personal assets exposed and costs thousands in avoidable self-employment taxes. Another frequent mistake is forming an LLC in a "business-friendly" state like Delaware or Wyoming when the business operates entirely in another state — this requires paying formation fees in the chosen state plus foreign entity registration fees in the home state, effectively doubling costs with no practical benefit for small businesses. Multi-member LLCs without operating agreements are also problematic — without a written agreement defining profit allocation, decision-making authority, and buyout procedures, disputes can be devastating. State default rules fill the gaps, but they rarely match the partners' actual intentions. Finally, failing to elect S-Corp status at the right time costs business owners thousands in unnecessary FICA taxes each year. The election must be filed within 75 days of the start of the tax year to take effect, so planning ahead is essential.
See also: 1099 vs W-2 Calculator · Quarterly Tax Calculator · Tax Estimator
→ The S-Corp election saves money starting around $50–60K net profit. Below that threshold, the additional payroll and compliance costs of an S-Corp often outweigh the self-employment tax savings. Above it, paying yourself a reasonable salary and taking the rest as distributions avoids 15.3% SE tax on the distribution portion.
→ An LLC is not a tax classification. The IRS doesn't recognize LLCs — they're taxed as sole proprietorships (single-member), partnerships (multi-member), S-Corps, or C-Corps depending on your election. "LLC" is a state-level liability structure, not a federal tax designation.
→ C-Corps face double taxation but enable fundraising. C-Corp profits are taxed at the corporate level (21%) and again when distributed as dividends. However, VCs and institutional investors typically require C-Corp structure. If you're not raising outside capital, an S-Corp or LLC is usually better. See our Tax Calculator.
→ Don't choose based on tax alone. Consider liability protection, administrative burden, state fees, future plans, and exit strategy. A sole proprietorship is free to set up but offers zero liability protection. An LLC costs $50–$500 to form but shields personal assets. Use our Freelance Rate Calculator to set rates that account for entity costs.
See also: Tax Calculator · Freelance Rate Calculator · Quarterly Tax Calculator · 1099 vs W-2 Calculator