S-Corp vs LLC: Tax Savings Breakdown for 2026

Overview: The Core Question

Most business owners hear "form an S-Corp and save on taxes" without understanding what is actually being compared. An LLC and an S-Corp are not the same kind of thing. An LLC is a legal entity created at the state level. An S-Corp is a federal tax election that an LLC (or a corporation) can choose to be taxed under.

The real question is not "LLC or S-Corp." The real question is: should your business be taxed as a default pass-through (sole proprietor or partnership) or as an S-Corp?

The answer comes down to one tax: self-employment tax. For a profitable owner-operated business, electing S-Corp status can save tens of thousands of dollars per year. For a smaller business, the added payroll and compliance costs can wipe out the savings entirely.

This guide breaks down exactly how the two are taxed, the break-even point where the S-Corp election starts paying off, the reasonable salary rules the IRS enforces, the state pass-through elections that layer on top, and the documentation that protects you in an audit.

How They Differ: The Self-Employment Tax Problem

A default LLC (single-member taxed as a sole proprietor, or multi-member taxed as a partnership) passes all of its net profit through to the owners. That entire profit is treated as earned income, and the owner pays self-employment tax on all of it.

Self-employment tax is 15.3% on the first portion of earnings:

• Social Security: 12.4% on earnings up to the wage base ($176,100 for 2026)
• Medicare: 2.9% on all earnings, with no cap
• Additional Medicare: 0.9% on earnings above $200,000 single / $250,000 married

For a default LLC, the owner pays this 15.3% on all net profit (up to the wage base, then 2.9%+ above it). There is no way to split the income.

An S-Corp changes the math. The owner becomes an employee of their own company and pays themselves a salary (W-2 wages). Payroll tax applies to that salary. The remaining profit is taken as a distribution, and distributions are not subject to self-employment or payroll tax.

The savings come from the profit that is taken as a distribution rather than salary. That is the entire mechanism. Everything else in the comparison is secondary.

Real Example: $1.5M Business, LLC vs S-Corp

Consider a consulting business with $1.5 million in net profit after expenses, owned by one person.

As a Default LLC (Sole Proprietor)

All $1.5 million is earned income subject to self-employment tax:

• Social Security portion: 12.4% on $176,100 = $21,836
• Medicare portion: 2.9% on $1.5M = $43,500
• Additional Medicare: 0.9% on ($1.5M - $200K) = $11,700
• Total self-employment tax: $77,036

As an S-Corp

The owner pays a reasonable salary of $350,000 and takes $1.15 million as a distribution:

• Social Security on salary: 12.4% on $176,100 = $21,836
• Medicare on salary: 2.9% on $350,000 = $10,150
• Additional Medicare: 0.9% on ($350,000 - $200,000) = $1,350
• Total payroll tax: $33,336
• Distribution of $1.15M: no payroll or self-employment tax

The Difference

• LLC self-employment tax: $77,036
• S-Corp payroll tax: $33,336
• Annual savings before costs: $43,700

After subtracting roughly $3,000 to $5,000 in added payroll and compliance costs, the net savings is approximately $39,000 to $41,000 per year. Over ten years, that is close to $400,000 kept in the business owner's pocket.

Reasonable Salary Requirements

The S-Corp strategy only works if the salary is reasonable. The IRS requires S-Corp owner-employees to pay themselves a salary that reflects what the role is actually worth. Pay yourself too little, and the IRS can reclassify distributions as wages, assess back payroll taxes, and add penalties and interest.

The IRS Reasonable Compensation Test

There is no single formula. The IRS weighs factors including:

• Training, experience, and duties of the owner
• Time and effort devoted to the business
• What comparable businesses pay for similar services
• The use of a formula to determine compensation
• Payments to non-owner employees for comparable work
• How distributions are timed relative to the business cycle

Industry Salary Benchmarks

These are illustrative ranges, not rules. Actual reasonable compensation depends on your facts:

• Solo consultant or coach: $80,000 to $150,000
• Marketing or creative agency owner: $100,000 to $180,000
• Software developer or technical founder: $120,000 to $200,000
• Medical or dental practice owner: $200,000 to $350,000
• Law firm partner: $200,000 to $400,000

A common mistake is anchoring salary to a percentage of profit. The IRS does not care about percentages. It cares whether the salary reflects the market value of the work performed.

When S-Corp Saves Money: Break-Even Analysis

The S-Corp election adds cost: payroll processing, a separate business tax return (Form 1120-S), bookkeeping, and often a higher accounting bill. Those costs typically run $2,000 to $5,000 per year.

The election only makes sense once the self-employment tax savings clearly exceed those costs.

General Break-Even Guidance

• Under $40,000 net profit: rarely worth it. Costs usually exceed savings.
• $40,000 to $80,000 net profit: marginal. The savings may only modestly beat the costs.
• $80,000 to $150,000 net profit: usually worth it. Savings of $4,000 to $9,000 per year are common.
• Above $150,000 net profit: almost always worth it. Savings frequently exceed $10,000 per year.

Why the Savings Plateau

Because Social Security tax stops at the wage base ($176,100 in 2026), the largest dollar savings per additional profit happens in the range just above that. Above the wage base, only the 2.9% Medicare (plus 0.9% additional Medicare) applies, so the S-Corp still helps on Medicare, but the incremental benefit per dollar is smaller. The election still saves money at very high profit levels because the Medicare savings on large distributions adds up.

Six Key Differences

A side-by-side comparison is rendered below this section. In short, an S-Corp election reduces self-employment tax but adds payroll, a separate return, reasonable salary obligations, and stricter ownership rules. A default LLC is simpler and more flexible but exposes all profit to self-employment tax.

State Pass-Through Entity Elections

On top of the federal S-Corp election, many states offer a pass-through entity (PTE) tax election. This is a separate strategy that works around the federal $10,000 SALT cap (raised to $40,000 through 2029 under recent law, then scheduled to revert).

With a PTE election, the business pays state income tax at the entity level and deducts it as a business expense federally, restoring a deduction the owner would otherwise lose.

• California: the pass-through entity (PTE) elective tax is a flat 9.3% of qualified net income (under SB 132, effective through 2030); deducting it federally can save $50,000 to $130,000+ annually for high earners (VERIFY WITH TAX ATTORNEY).
• New York: PTET plus the NYC election can recover meaningful federal deductions; combined state and city rates reach 14.776%.
• New Jersey: The BAIT election works around the SALT cap at rates up to 10.75%.

Because the 2026 SALT cap rose to $40,000, the PTE workaround mainly benefits owners above roughly $500,000 adjusted gross income. Below that, the larger SALT deduction may already cover most of the owner's state tax, so the election can add little or no benefit. The cap phases back down toward $10,000 above $500,000 AGI, where the PTE election keeps its value.

The PTE election and the S-Corp election stack. A profitable S-Corp in a high-tax state often benefits from both. See the full guide to reducing taxable income for how these strategies combine.

Common Mistakes

1. Paying an Unreasonably Low Salary

The single biggest audit trigger. Owners who zero out their salary and take everything as distributions invite reclassification, back taxes, and penalties. The savings are not worth the exposure.

2. Electing S-Corp Status Too Early

Forming an S-Corp on a $30,000 business means paying $3,000+ in added costs to save almost nothing. Wait until profit clearly supports the election.

3. Ignoring State and Payroll Compliance

An S-Corp must run real payroll, file quarterly payroll returns, issue a W-2, and file Form 1120-S. Missing these filings creates penalties that erase the tax savings.

4. Forgetting Reasonable Compensation Documentation

Owners who never document how they arrived at their salary have nothing to defend in an audit. A contemporaneous compensation study or written analysis is inexpensive insurance.

Decision Tree: Should You Elect S-Corp?

Work through these questions in order:

1. Is your net profit (after expenses) above $80,000 per year? If no, stay a default LLC for now. If yes, continue.
2. Is the business owner-operated, where you perform real services? If no, the salary logic may not apply cleanly. If yes, continue.
3. Can you pay yourself a defensible reasonable salary and still take a meaningful distribution? If no, the savings are limited. If yes, continue.
4. Are you willing to run payroll, file Form 1120-S, and maintain compliance? If no, the election is risky. If yes, the S-Corp election likely saves you money.

If you answered yes through question 4, an S-Corp election is probably worth modeling with your CPA.

Real Examples: Three Scenarios

Scenario 1: The Consultant ($180,000 Profit)

A solo strategy consultant nets $180,000. Reasonable salary for the role: $110,000. Distribution: $70,000.

• LLC self-employment tax: roughly $24,500
• S-Corp payroll tax on $110,000 salary: roughly $16,800
• Savings before costs: about $7,700
• Net savings after costs: roughly $4,000 to $5,000 per year

Verdict: worth it, with modest but real savings.

Scenario 2: The Software Developer ($320,000 Profit)

A freelance senior developer nets $320,000. Reasonable salary: $170,000. Distribution: $150,000.

• LLC self-employment tax: roughly $30,400
• S-Corp payroll tax on $170,000 salary: roughly $24,000
• Savings before costs: about $6,400 on the salary split, plus larger Medicare savings on the $150,000 distribution
• Net savings after costs: roughly $7,000 to $9,000 per year

Verdict: clearly worth it.

Scenario 3: The Real Estate Investor ($250,000 Rental Income)

An investor owns rental properties through an LLC, netting $250,000 in rental income.

Rental income is generally passive and not subject to self-employment tax in the first place. There is usually no self-employment tax to save, so the S-Corp election typically does not help and can create complications (such as trapping appreciated property inside a corporation).

Verdict: usually not worth it. The S-Corp election is built for active earned income, not passive rental income.

Audit Documentation: What Saves You

If the IRS questions your S-Corp salary, the difference between a quick resolution and a costly assessment is documentation. Keep:

• A written reasonable compensation analysis, ideally a formal study, showing how you set the salary against market data.
• Job descriptions and time records showing the owner's actual duties and hours.
• Payroll records, W-2s, and quarterly payroll filings showing the salary was actually paid through payroll.
• Board or owner resolutions documenting the compensation decision and timing.
• Comparable salary data for the role and industry, dated to the year in question.

The goal is to show that the salary was set deliberately, based on the market value of the work, before distributions were taken. Owners who can produce this almost always prevail. Owners who reconstruct it after an audit notice rarely do.