LLC vs S-Corp Tax: Complete 2026 Comparison
One of the most impactful tax decisions an LLC owner can make is whether to elect S-Corporation tax status. This single election can save thousands of dollars per year in self-employment taxes, but it also adds complexity and cost. This guide provides a thorough side-by-side comparison to help you make the right choice.
Key Distinction: An S-Corp is a tax election, not a business structure. Your LLC remains an LLC under state law. You are simply telling the IRS to tax your LLC as an S-Corporation instead of using the default classification.
How Each Is Taxed
| Feature | LLC (Default) | LLC with S-Corp Election |
|---|---|---|
| Federal tax form | Schedule C (1 member) / Form 1065 (2+ members) | Form 1120-S |
| Self-employment tax | 15.3% on all net income | FICA only on salary |
| Owner compensation | Owner draws (not salary) | Must pay reasonable W-2 salary |
| Remaining profit | Subject to SE tax | Tax-free distributions (no SE tax) |
| Income allocation | Flexible (partnerships) | Must be proportional to ownership |
| Filing deadline | April 15 (Schedule C) / March 15 (1065) | March 15 |
| QBI deduction | Yes (up to 20%) | Yes (up to 20%) |
| Pass-through taxation | Yes | Yes |
| Payroll required | No (unless employees) | Yes (owner salary) |
| Accounting complexity | Low to moderate | Moderate to high |
| Annual added cost | $0 | $1,500-$3,000 |
Self-Employment Tax Savings: The Math
The core benefit of S-Corp election is the self-employment tax savings on the distribution portion of your income. Here is a comparison at different income levels, assuming a 50% salary/50% distribution split:
| Net Income | LLC SE Tax | S-Corp FICA (50% salary) | Annual Savings | Net After S-Corp Costs |
|---|---|---|---|---|
| $40,000 | $5,652 | $3,060 | $2,592 | $592 |
| $60,000 | $8,478 | $4,590 | $3,888 | $1,888 |
| $80,000 | $11,304 | $6,120 | $5,184 | $3,184 |
| $100,000 | $14,130 | $7,650 | $6,480 | $4,480 |
| $150,000 | $21,194 | $11,475 | $9,719 | $7,719 |
| $200,000 | $27,174 | $13,770 | $13,404 | $11,404 |
Assumes $2,000 annual added cost for S-Corp payroll and tax preparation. Actual savings depend on salary level and specific circumstances.
Break-Even Point: S-Corp election typically becomes worthwhile when LLC net income exceeds $40,000-$50,000 per year. Below that level, the SE tax savings are smaller than the added costs of payroll and S-Corp return preparation.
The Reasonable Salary Requirement
The IRS requires S-Corp owner-employees to pay themselves a "reasonable salary" for the work they perform. This is the most scrutinized aspect of S-Corp taxation. Factors the IRS considers:
- Comparable salaries: What do similar positions pay in your industry and geographic area?
- Experience and qualifications: Your education, certifications, and years of experience
- Time and effort: Hours spent working in the business
- Revenue and profitability: How much does the business earn?
- Dividend history: A pattern of zero salary and large distributions is a red flag
IRS Red Flag: Setting your salary at $10,000 while taking $140,000 in distributions will almost certainly trigger IRS scrutiny. A common guideline is to set salary at 40-60% of net income, or at a level that reflects what you would reasonably be paid as an employee performing the same work.
S-Corp Qualification Requirements
Not every LLC qualifies for S-Corp election. Requirements include:
- Must be a domestic entity (organized in the U.S.)
- No more than 100 shareholders (members)
- Only one class of stock (no preferred shares or different distribution rights)
- Shareholders must be individuals, certain trusts, or estates (no corporations, partnerships, or non-resident aliens)
- Must operate on a calendar year (or request a fiscal year with IRS approval)
Added Costs of S-Corp Election
- Payroll processing: $300-$1,200/year for a service like Gusto or ADP (monthly processing of owner salary, W-2s, payroll tax filings)
- S-Corp tax return (Form 1120-S): $800-$2,000 for CPA preparation (compared to $200-$500 for Schedule C)
- Bookkeeping: May increase $200-$500/year due to payroll journal entries and more complex record-keeping
- State-level S-Corp fees: Some states impose additional taxes on S-Corps (e.g., California's 1.5% franchise tax)
- Workers' compensation: Some states require coverage for owner-employees
When to Choose LLC Default Taxation
- Net income is below $40,000
- You want the simplest possible tax filing
- You need flexible income allocation among members
- Business income is highly variable year-to-year
- You are in the startup phase with little to no profit
- You plan to bring on investors who are not U.S. individuals
When to Elect S-Corp Status
- Net income consistently exceeds $50,000
- Self-employment tax savings exceed $2,000-$3,000 per year
- Income is relatively stable and predictable
- You are willing to run payroll and maintain more complex records
- All members are U.S. individuals or qualifying trusts
- You do not need special income allocations
How to Make the S-Corp Election
- Verify eligibility: Confirm your LLC meets all S-Corp requirements
- File Form 2553: Submit to the IRS within 75 days of the start of the tax year
- Set up payroll: Register with the IRS and state for employer tax accounts
- Determine reasonable salary: Research comparable positions and document your reasoning
- Start processing payroll: Begin paying yourself a W-2 salary with proper withholding
- Engage a CPA: Ensure proper Form 1120-S filing and compliance
Real-World Decision Framework
| Net Income | Recommended Classification | Reasoning |
|---|---|---|
| Under $30,000 | LLC Default | SE tax savings too small to justify S-Corp costs |
| $30,000 - $50,000 | Run the numbers | May be close to break-even; depends on added costs |
| $50,000 - $100,000 | S-Corp likely better | SE tax savings of $3,000-$6,000 exceed added costs |
| $100,000 - $250,000 | S-Corp recommended | SE tax savings of $6,000-$13,000; clear advantage |
| Over $250,000 | S-Corp or consult CPA | Significant savings; consider C-Corp for retained earnings |