LLC vs S-Corp Tax Comparison: Savings at Every Income Level

At what income level does an S-Corp save money over an LLC? For most sole-member LLCs, S-Corp election starts saving on self-employment tax around $50,000-$60,000 in net business income. At $75,000, you could save roughly $2,948 per year. At $150,000, potential savings jump to $10,485. The exact crossover depends on your industry, state, and what the IRS considers a “reasonable salary” for your role. Illustrative example based on common client profiles. Actual results vary based on your income, industry, and state.

Key Takeaways

• At $75,000 net income, S-Corp election can save roughly $2,948/year in self-employment tax – That’s after accounting for payroll processing costs, but before additional tax return preparation fees. The net benefit is real but modest at this level.
• At $100,000, annual SE tax savings grow to about $5,355 – This is where S-Corp election starts making clear financial sense for most business owners, even after the added compliance costs.
• At $150,000, you’re looking at roughly $10,485 in annual savings – The gap between sole prop SE tax and S-Corp payroll tax widens significantly as income grows beyond six figures.
• At $250,000, potential savings reach approximately $14,759 per year – Higher income amplifies the benefit because a larger share of income flows through as distributions, untouched by self-employment tax.
• S-Corp election adds $2,000-$4,500 in annual compliance costs – Payroll processing ($500-$2,000/year) plus a separate corporate tax return ($1,000-$2,500 in CPA fees) eat into your savings. Below $50,000 net income, these costs often cancel out the tax benefit.
• The QBI deduction (20%) applies to both structures – Whether you’re a sole prop LLC or an S-Corp, you may qualify for the Qualified Business Income deduction under IRC Section 199A, reducing taxable income on pass-through earnings. The deduction is permanent under the One Big Beautiful Bill Act (OBBBA).

How LLCs and S-Corps Are Actually Taxed

First, a common misconception: an LLC and an S-Corp aren’t an either/or choice. An LLC is a legal structure you form with your state. An S-Corp is a tax election you make with the IRS. Most S-Corp owners started as LLCs and then filed Form 2553 to change how the IRS taxes them.

For a deeper look at what an LLC is and how it works, see our What Is an LLC? Complete Guide.

Here’s what matters for your wallet:

Default LLC (Sole Proprietorship): All net business income flows to your personal return on Schedule C. You pay self-employment (SE) tax of 15.3% on every dollar of net income up to $184,500 (the 2026 Social Security wage base), then 2.9% Medicare tax on amounts above that. That’s 12.4% Social Security + 2.9% Medicare, and you pay both the employer and employee portions.

LLC with S-Corp Election: You pay yourself a “reasonable salary” and take the rest as distributions. Payroll taxes (the same 15.3%) only apply to your salary. Distributions are not subject to self-employment tax. The savings come from every dollar you can legitimately classify as a distribution instead of salary.

For details on making the S-Corp switch, read our Converting LLC to S-Corp Guide.

Side-by-Side Comparison: LLC vs. S-Corp

Illustrative example based on common client profiles. Actual results vary based on your income, industry, and state.

At What Income Does an S-Corp Save Money?

This is the question everyone asks. Here’s the math at four income levels, using 2026 tax figures. Each example assumes a reasonable salary based on industry norms, with the balance taken as distributions.

$75,000 Net Business Income

As a sole proprietor: You pay SE tax on the full $75,000. – SE tax: $75,000 x 15.3% = $10,598 (after the 92.35% adjustment the IRS applies to self-employment income, the actual calculation is $75,000 x 0.9235 x 15.3% = $10,598)

As an S-Corp (reasonable salary: $50,000): – Payroll tax on salary: $50,000 x 15.3% = $7,650 – Distributions: $25,000 (no SE tax) – Annual SE tax savings: ~$2,948

After payroll and tax prep costs ($2,000-$4,500), the net benefit at $75K is slim. This is right at the break-even zone.

$100,000 Net Business Income

As a sole proprietor: – SE tax: $100,000 x 0.9235 x 15.3% = $14,130

As an S-Corp (reasonable salary: $57,350): – Payroll tax on salary: $57,350 x 15.3% = $8,775 – Distributions: $42,650 (no SE tax) – Annual SE tax savings: ~$5,355

At $100K, the S-Corp clearly wins even after compliance costs. You’re netting $1,000-$3,000 in real savings annually.

$150,000 Net Business Income

As a sole proprietor: – SE tax: $150,000 x 0.9235 x 15.3% = $21,195

As an S-Corp (reasonable salary: $70,000): – Payroll tax on salary: $70,000 x 15.3% = $10,710 – Distributions: $80,000 (no SE tax) – Annual SE tax savings: ~$10,485

This is where S-Corp election becomes a clear financial winner. After $2,000-$4,500 in compliance costs, you’re still saving $6,000-$8,000 per year.

$250,000 Net Business Income

As a sole proprietor: – SE tax: $184,500 x 0.9235 x 12.4% = $21,127 (Social Security portion, capped at $184,500 wage base) – Plus Medicare: $250,000 x 0.9235 x 2.9% = $6,696 – Plus Additional Medicare (0.9% on income over $200,000): $50,000 x 0.9235 x 0.9% = $416 – Total SE tax: ~$28,239

As an S-Corp (reasonable salary: $88,100): – Payroll tax on salary: $88,100 x 15.3% = $13,480 – Distributions: $161,900 (no SE tax, no Additional Medicare) – Annual SE tax savings: ~$14,759

Even with $4,500 in compliance costs, you’re ahead by more than $10,000 annually.

Illustrative example based on common client profiles. Actual results vary based on your income, industry, and state.

The “Reasonable Salary” Problem

The IRS requires S-Corp owners to pay themselves a salary that’s reasonable for their industry, location, and role. Pay yourself too little and the IRS reclassifies distributions as wages, killing your tax savings and adding penalties plus interest.

There’s no magic number. The IRS looks at:

• What similar businesses pay for similar work
• Your experience and qualifications
• Time you spend working in the business
• Revenue and profitability
• Compensation history

A marketing consultant earning $150,000 can’t pay themselves a $30,000 salary and take $120,000 in distributions. The IRS has won multiple court cases on exactly this point. A salary around 40-60% of net income is typical for professional service businesses, though it varies by industry.

For a detailed walkthrough of Form 2553 and the election process, see our Form 2553 S-Corp Election Guide.

Decision Framework: Which Structure Fits You?

Three variables determine whether S-Corp election makes sense for your business:

1. Income Level

• Below $50,000 net income: Stay as a default LLC. Compliance costs eat most or all of the SE tax savings. You’d spend $2,000-$4,500 on payroll and tax prep to save maybe $1,500 in SE tax.
• $50,000-$75,000: Gray zone. Run the numbers with a CPA. If your industry supports a lower reasonable salary percentage, S-Corp could work. If not, the math might be a wash.
• $75,000-$100,000: S-Corp election likely saves money, but check your specific situation. Most business owners in this range see $1,000-$3,000 in net annual savings after compliance costs.
• Above $100,000: S-Corp election almost always makes sense for service businesses. The savings comfortably exceed the compliance costs, and the gap only widens as income grows.

2. Growth Trajectory

If your income is $40,000 now but growing 30% per year, you might file Form 2553 proactively. The election needs to be filed by March 15 of the tax year you want it to take effect (or within 75 days of formation for new businesses). Planning ahead avoids a scramble. Missing the March 15 deadline means waiting another full year to make the switch.

If your income fluctuates between $30,000 and $80,000 depending on the year, the S-Corp’s fixed compliance costs make it less predictable. You’d pay $2,000-$4,500 in compliance costs even in a $30,000 year. Freelancers and consultants with seasonal income should model their worst-case year, not their best.

3. Number of Owners

Single-member LLCs convert to S-Corps with minimal friction. Multi-member LLCs face extra complexity: all members must consent to the election, and S-Corps can’t have more than 100 shareholders.

Multi-member LLCs with active partners should also consider guaranteed payments and how they interact with self-employment tax. That conversation goes beyond this article. See our Complete Guide to Partnership Taxation for the multi-owner angle.

Hidden Costs of S-Corp Election

The tax savings are real, but so are these ongoing expenses:

• Payroll processing: $500-$2,000/year through a payroll service
• Quarterly payroll tax filings: Form 941 each quarter
• Annual corporate return: Form 1120-S ($1,000-$2,500 in CPA fees)
• State-level requirements: Some states impose franchise taxes or minimum fees on S-Corps (California charges $800/year minimum, for example)
• Year-end W-2 and K-1 filing: Additional compliance steps each January

These aren’t reasons to avoid S-Corp election. They’re reasons to make sure the SE tax savings justify the cost. At $100K+ in net income, they almost always do.

How This Article Differs from Our Complete LLC vs. S-Corp Comparison

Our LLC vs. S-Corp Complete Comparison covers the full structural picture: legal differences, liability protection nuances, management structures, ownership restrictions, and state-level considerations. It’s the right resource if you’re evaluating these structures as a whole.

This article focuses specifically on the tax cost at each income level. If your question is “how much will I actually save?”, you’re in the right place. If your question is “what’s the fundamental difference between an LLC and an S-Corp?”, start with the complete comparison.

What About the QBI Deduction?

The Qualified Business Income (QBI) deduction under IRC Section 199A lets pass-through business owners deduct 20% of qualified business income from their taxable income. Both default LLCs and S-Corps qualify.

Here’s what most people miss: S-Corp election can actually increase your QBI deduction in some cases. W-2 wages paid to yourself (your reasonable salary) count toward the W-2 wage limitation that can cap your QBI deduction at higher income levels. The phase-out begins at $201,775 for single filers and $403,500 for married filing jointly (2026 figures, permanent under OBBBA).

If your income is below these thresholds, QBI is straightforward for both structures. If you’re above them, the calculation gets complicated. A CPA can model both scenarios.

Use the S-Corp Tax Calculator

Want a quick estimate? Our S-Corp Tax Calculator lets you plug in your net income, state, and industry to see estimated SE tax savings. It’s a starting point, not a replacement for professional analysis.

Frequently Asked Questions

Can I switch back from S-Corp to a regular LLC? Yes, but there’s a catch. If you revoke your S-Corp election, you generally can’t re-elect for five tax years. Make sure S-Corp is right before filing.

Does my state recognize S-Corp elections? Most states follow the federal S-Corp election automatically. A few (like New York City and California) impose additional taxes or fees on S-Corps. Texas has no state income tax, so Texas-based S-Corp owners only deal with federal implications and the state franchise tax.

Do I need a new EIN if I elect S-Corp? No. Your LLC keeps the same EIN. The legal entity doesn’t change; only the tax classification changes.

Can I elect S-Corp mid-year? Form 2553 must be filed by March 15 for the current tax year. Late elections are possible with reasonable cause, but plan ahead to avoid complications.

What happens if the IRS says my salary is too low? The IRS reclassifies distributions as wages, meaning you owe back payroll taxes plus penalties and interest. In severe cases, the IRS can revoke your S-Corp election entirely.

Is an S-Corp better than a sole proprietorship for liability? Both an LLC (whether taxed as sole prop or S-Corp) provide the same liability protection. S-Corp election is a tax classification, not a change in legal structure. If you’re currently a sole proprietorship without an LLC, form the LLC first.

For the full guide to entity selection, formation, and first-year tax obligations, see our Starting a Business Tax Guide.

Want to see the exact savings for your income level? Get started with SDO CPA.