S Corp vs LLC comparison: tax savings, liability protection, formation costs, and compliance requirements. Choose the right business structure in 2026.
| Feature | S Corporation | LLC (Limited Liability Company) |
|---|---|---|
| Self-Employment Tax | Only on salary (not distributions) | On all net earnings (15.3% SE tax) |
| Liability Protection | Yes - separates personal and business assets | Yes - separates personal and business assets |
| Formation Complexity | More complex (must elect S Corp status) | Simpler formation process |
| Ownership Restrictions | Max 100 shareholders, US citizens/residents only | No restrictions on number or type of owners |
| Payroll Required | Yes - must run payroll for owner-employees | No (unless you elect S Corp taxation) |
| Annual Compliance | Board meetings, minutes, annual reports | Minimal formalities in most states |
| Pass-Through Taxation | Yes - profits pass to personal return | Yes - profits pass to personal return |
| Best For | Businesses earning $60K+ in net profit | New businesses, side hustles, real estate |
The primary reason business owners choose S Corp taxation is to reduce self-employment taxes. As an LLC taxed as a sole proprietorship, you pay 15.3% self-employment tax on all net earnings. As an S Corp, you pay yourself a "reasonable salary" and take remaining profits as distributions, which are not subject to self-employment tax. If your business earns $150,000 net and you pay yourself a $70,000 salary, you save self-employment tax on $80,000, amounting to roughly $12,000 in annual tax savings.
The IRS requires S Corp owner-employees to pay themselves a "reasonable salary" before taking distributions. This salary must be comparable to what the role would earn in the open market. Setting your salary too low is a red flag for IRS audits. You must also run payroll, file quarterly payroll tax returns, and handle W-2s. These administrative requirements add cost and complexity: expect $500 to $2,000 per year for payroll services plus additional accounting fees.
An LLC is simpler to form and maintain. You file articles of organization with your state, create an operating agreement, and have minimal ongoing formalities. An S Corporation requires either forming a corporation and filing IRS Form 2553 or forming an LLC and electing S Corp tax treatment. S Corps have stricter requirements: regular board meetings, corporate minutes, and more detailed record-keeping. Failure to maintain corporate formalities can jeopardize your liability protection.
The S Corp tax advantage only kicks in when your business generates enough profit to justify the additional costs. Most accountants suggest the S Corp election becomes worthwhile when net business income exceeds $50,000 to $60,000 annually. Below this threshold, the payroll costs, additional tax preparation fees, and administrative burden may exceed the self-employment tax savings. The exact breakeven depends on your state and specific situation.
In 2026, the LLC remains the best starting structure for most new businesses due to its simplicity and flexibility. As your net income grows above $50,000-$60,000, the S Corp election (which you can make while keeping your LLC) offers meaningful self-employment tax savings that justify the additional costs. Many successful business owners start as a single-member LLC and add the S Corp tax election once profits warrant it. Consult with a CPA who understands your specific situation, as state taxes, industry norms for reasonable salary, and your business trajectory all affect the optimal timing for an S Corp election.