When does it make sense to elect S-Corp status?

S-Corp election typically makes sense when your net self-employment income exceeds $40,000–$50,000 per year. The benefit is that you can split income between a W-2 salary (subject to payroll taxes) and S-Corp distributions (not subject to self-employment tax). At $80,000 net income, this can save $8,000–$12,000 annually in FICA taxes after accounting for additional payroll administration costs.

What is the biggest tax downside of a C-Corp?

Double taxation. A C-Corp pays corporate income tax (currently a flat 21%) on its profits, and then shareholders pay dividend tax (0%, 15%, or 20%) when profits are distributed. This means the same dollar of income is taxed twice. However, C-Corps are often preferred by venture-backed startups because of favorable treatment for qualified small business stock (QSBS) exclusions and investor expectations.

Can I change my entity type later?

Yes, but it comes with tax consequences. Converting from an LLC to an S-Corp is generally straightforward (an election, not a true conversion). Converting from an S-Corp or C-Corp to an LLC can trigger taxable gains on appreciated assets. Discuss timing and method with your CPA before making any entity change — some transitions are cleaner at the start of a tax year.

Business Entity Types for Taxes: LLC vs. S-Corp vs. C-Corp

May 19, 2026

Why Entity Choice Matters More Than Most Business Owners Realize

Your business entity type determines how your income is taxed, who can be liable for business debts, what elections are available to you, and even how attractive your company is to investors. The default choice — a sole proprietorship or single-member LLC — is not always the most tax-efficient option once your business grows. Here is how the major entity types compare from a tax perspective.

Sole Proprietorship and Single-Member LLC

The simplest structure. Business income flows directly onto your personal return via Schedule C. You pay income tax plus self-employment tax (15.3% on the first $176,100 of net earnings in 2026, 2.9% above that). There is no separation of corporate and personal tax returns.

Best for: Early-stage businesses, part-time freelancers, and businesses with net income below $40,000 where the administrative overhead of a more complex structure is not justified.

Multi-Member LLC (Partnership)

Taxed as a partnership by default. Files Form 1065 and issues K-1s to each partner reflecting their share of income and loss. Partners pay self-employment tax on their distributive share of active trade or business income. Flexible profit-sharing arrangements are possible.

Best for: Businesses with multiple owners who want flexibility in how they allocate profits and losses without corporate formalities.

S-Corporation

An S-Corp is a tax election — an LLC or corporation that elects to be taxed as an S-Corp under Subchapter S. Income passes through to shareholders, but the structure allows you to pay yourself a "reasonable salary" and take additional profits as distributions, which are not subject to self-employment tax. Files Form 1120-S.

Tax savings example: At $100,000 net income, a sole proprietor pays ~$14,130 in self-employment tax. An S-Corp owner paying themselves a $60,000 salary pays ~$9,180 in payroll taxes, saving approximately $4,950 — minus $1,500–$3,000 in added administrative costs (payroll service, additional tax returns).

Best for: Self-employed professionals and small business owners with net income above $50,000.

Restrictions: Maximum 100 shareholders, US residents only, one class of stock. These restrictions matter if you plan to raise institutional investment.

C-Corporation

A separate taxable entity filing Form 1120 at a flat 21% federal corporate rate. Profits distributed to shareholders as dividends are taxed again at the individual level (double taxation). However, C-Corps offer significant advantages for certain situations:

Qualified Small Business Stock (Section 1202): Gain exclusion of up to 100% on QSBS held more than 5 years — potentially eliminating federal capital gains tax on exit for early investors and founders
No S-Corp restrictions: Can have unlimited shareholders, multiple stock classes, and foreign investors
Retained earnings flexibility: Can retain earnings in the company at the 21% corporate rate rather than distributing them (beneficial if personal marginal rate exceeds 21%)

Best for: Venture-backed startups, companies with significant retained earnings, and businesses planning an institutional fundraise or exit.

Making the Decision With Your CPA

Entity choice should be made with a CPA who can model the tax implications for your specific income level, state of operation, and long-term goals. The right structure at $80,000 revenue is not necessarily the right structure at $800,000. Plan to revisit entity structure annually as your business grows.

Find a business CPA who can advise on entity structure by browsing our city directory.

Frequently Asked Questions

When does it make sense to elect S-Corp status?: S-Corp election typically makes sense when your net self-employment income exceeds $40,000–$50,000 per year. The benefit is that you can split income between a W-2 salary (subject to payroll taxes) and S-Corp distributions (not subject to self-employment tax). At $80,000 net income, this can save $8,000–$12,000 annually in FICA taxes after accounting for additional payroll administration costs.
What is the biggest tax downside of a C-Corp?: Double taxation. A C-Corp pays corporate income tax (currently a flat 21%) on its profits, and then shareholders pay dividend tax (0%, 15%, or 20%) when profits are distributed. This means the same dollar of income is taxed twice. However, C-Corps are often preferred by venture-backed startups because of favorable treatment for qualified small business stock (QSBS) exclusions and investor expectations.
Can I change my entity type later?: Yes, but it comes with tax consequences. Converting from an LLC to an S-Corp is generally straightforward (an election, not a true conversion). Converting from an S-Corp or C-Corp to an LLC can trigger taxable gains on appreciated assets. Discuss timing and method with your CPA before making any entity change — some transitions are cleaner at the start of a tax year.