Business Formation: LLC vs. S-Corp vs. C-Corp — What Lawyers Recommend

Why Business Structure Matters More Than Most Founders Think

Many entrepreneurs treat business formation like a checkbox — file something, get a number, move on. That's a mistake.

Your entity type determines:

• Whether your personal assets are protected if the business is sued
• How business income is taxed — and at what rate
• Whether you can raise venture capital or bring on investors
• How complex your annual compliance requirements will be
• What happens if you want to sell the business or bring in partners

Choosing wrong — and restructuring later — can be expensive, complex, and trigger tax consequences. The time to get this right is at formation, which is exactly why most business attorneys recommend a consultation before you file anything.

The LLC: Flexible, Simple, and Right for Most Small Businesses

What It Is

A Limited Liability Company (LLC) is the most popular business structure in the United States — and for good reason. It combines the liability protection of a corporation with the operational simplicity of a sole proprietorship or partnership.

Liability Protection

An LLC creates a legal barrier between you and your business. If the company is sued, creditors can pursue business assets — but not, in most circumstances, your personal savings, home, or other personal property. This is the foundational protection every business owner needs.

Tax Treatment

By default, LLCs are taxed as "pass-through" entities. The business itself pays no federal income tax. Instead, profits and losses pass directly to the owners' personal tax returns, where they're taxed at individual rates. For single-member LLCs, the IRS treats the business as a "disregarded entity" — similar to a sole proprietorship, but with the liability shield.

Critically: LLC owners who actively work in the business typically pay self-employment tax (15.3% on the first ~$170,000 of net earnings in 2026) on all business profits. This is a meaningful cost that the S-Corp structure partially solves.

When Attorneys Recommend an LLC

• Solo practitioners, consultants, and freelancers starting their first business
• Small businesses with straightforward ownership structures
• Real estate investors holding individual properties
• Businesses not seeking outside investment in the near term
• Partners who want flexible profit-sharing arrangements without corporate formality

The S-Corporation: The Self-Employment Tax Saver

What It Is

An S-Corporation is not a separate entity type — it's a tax election. You form a corporation (or in some states, an LLC), then elect S-Corp status with the IRS. The result is a pass-through tax structure like an LLC, but with one critical difference: it allows owners to reduce self-employment tax exposure.

The Self-Employment Tax Advantage

Here's the mechanism: S-Corp owner-employees must pay themselves a "reasonable salary" — which is subject to payroll taxes (Social Security and Medicare, roughly 15.3%). But any remaining profits above that salary can be distributed as dividends, which are not subject to self-employment tax.

Example: If your business earns $200,000 and you pay yourself a $100,000 salary, the $100,000 in distributions above that salary avoids the 15.3% self-employment tax — a potential savings of over $15,000 per year, minus accounting and payroll costs.

The IRS monitors this closely — the "reasonable salary" requirement is real and enforced. Underpaying yourself to maximize distributions is an audit trigger.

Additional Requirements and Costs

The S-Corp election comes with significant restrictions:

• Maximum 100 shareholders
• Shareholders must be U.S. citizens or permanent residents
• Only one class of stock allowed (no preferred shares)
• Corporations, partnerships, and most trusts cannot be shareholders
• Requires payroll setup, quarterly payroll tax filings, and year-end W-2s

The accounting and payroll administration typically adds $2,000–$5,000+ per year in professional fees. The math only works in your favor once business profits are substantial enough to offset those costs — generally above $50,000–$80,000 in annual net income is a common threshold attorneys and accountants reference.

When Attorneys Recommend an S-Corp

• Established small businesses with consistent net profits above $50,000–$80,000/year
• Sole proprietors or single-member LLCs wanting to reduce self-employment tax
• Professional service businesses: consultants, accountants, marketing firms, healthcare professionals
• Businesses that don't need outside investment and will stay under 100 shareholders

The C-Corporation: For Venture-Backed Startups and Larger Businesses

What It Is

A C-Corporation is the standard corporation — a completely separate legal entity from its owners, with its own tax ID, tax return, and tax obligations. It's the structure that underlies virtually every large publicly traded company, and the one most preferred by venture capital investors.

Double Taxation — and When It Doesn't Matter

The primary downside of a C-Corp for small businesses is double taxation. The corporation pays corporate income tax on its profits (the federal rate is currently 21%). When those after-tax profits are distributed to shareholders as dividends, shareholders pay tax again at their individual rate (qualified dividend rate of 0%, 15%, or 20% depending on income).

For small businesses distributing profits to owners, this is genuinely costly. But for many C-Corp scenarios, this structure still makes sense:

• VC investors require C-Corps because they need preferred stock classes (which S-Corps can't issue)
• Businesses planning to go public need to be C-Corps
• Businesses that reinvest profits rather than distribute them avoid dividend taxation
• The 21% corporate rate can be lower than individual tax rates for high earners

Additional Benefits

• Unlimited shareholders; can have foreign shareholders
• Multiple classes of stock (common and preferred) for investor flexibility
• Easier to issue equity to employees (stock option plans, ISOs)
• Qualified Small Business Stock (QSBS) exclusion: eligible shareholders may exclude up to 100% of capital gains on the sale of qualifying C-Corp stock held for 5+ years — potentially worth millions in tax savings for early founders

When Attorneys Recommend a C-Corp

• Tech startups or businesses planning to raise venture capital
• Companies planning to go public (IPO) within the next 5–10 years
• Businesses with international investors or complex ownership structures
• Founders who want QSBS tax treatment on the eventual sale
• Businesses retaining profits for growth rather than distributing them

Side-by-Side Comparison

What Business Attorneys Actually Recommend

The most common recommendation from business formation attorneys for early-stage, bootstrapped businesses is: start as an LLC, then evaluate the S-Corp election once profits become consistent.

The reasoning is practical. An LLC gives you liability protection and pass-through taxation immediately, with minimal cost and complexity. Once you're generating meaningful profit, you and your accountant can evaluate whether the S-Corp election's payroll tax savings offset the additional administrative cost — and make the switch if the math works.

For tech founders who expect to raise venture capital: form a Delaware C-Corp from day one. Delaware is the preferred state because of its well-developed corporate law, experienced business courts, and the predictability that investors and their attorneys expect. Restructuring from an LLC to a C-Corp after a funding round is possible, but it's more complex and costly than simply starting there.

For everyone else: consult both a business attorney and a CPA before filing anything. The legal structure and the tax strategy work together, and getting one wrong affects the other.

Common Mistakes to Avoid

• Forming in the wrong state: You don't have to form your business where you live, but if you form in Delaware or Wyoming for tax benefits while operating in California, you'll likely need to register as a foreign entity in your home state — paying fees in both. For most small businesses, forming in your home state is simpler and cheaper.
• Skipping the operating agreement: An LLC operating agreement is the internal document governing ownership, profit distribution, and decision-making. In many states, it's technically optional — but operating without one is a mistake that leads to disputes. Always have one drafted.
• Not separating personal and business finances: The liability protection of any entity can be "pierced" by courts if you commingle personal and business funds, fail to maintain formalities, or use the business as a personal piggy bank. Get a separate bank account. Keep records.
• DIY formation for complex situations: Platforms like LegalZoom are adequate for simple single-member LLCs. Multi-member arrangements, partnership splits, or any venture-backed structure benefit significantly from an actual attorney drafting the documents correctly from the start.