LLC or S Corp: Which Is Better? (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

An LLC is a legal entity; an S corp is a tax election an eligible LLC can make. Choose a plain LLC if profit is modest and you want simplicity; choose the S corp election if profit reliably exceeds a reasonable salary and payroll cost is worth the self-employment-tax savings.

"LLC or S corp" sounds like a choice between two entities, but it usually is not. A limited liability company (LLC) is a state-law business structure; an S corporation is a federal tax status an eligible entity elects. An LLC can elect S corp taxation and stay an LLC. So the real question is whether to keep your LLC's default taxation or add the S corp election on top of it - a trade between self-employment-tax savings and payroll and filing work.

LLC vs the S Corp Election: Side-by-Side

The table compares a default-taxed LLC with the same LLC after it elects S corporation treatment. Both remain the same legal entity; only the federal tax rules change. Figures are federal and effective for the 2026 tax year unless noted.

Why "LLC or S Corp" Is the Wrong Framing

An LLC and an S corp are different categories of thing. The IRS defines a limited liability company as "a business structure allowed by state statute," with owners called members. An S corporation is not a structure at all - it is a corporation, or an eligible entity, that has elected "to pass corporate income, losses, deductions, and credits through to their shareholders for federal tax purposes." Because an LLC is an eligible entity, it can make that election on Form 2553 and keep its LLC status, name, and liability shield. So the practical decision is whether to leave your LLC on its default taxation or layer the S corp election on top - not to pick one entity over another. For the same comparison from the S corp's side, see S corp vs C corp.

The Self-Employment Tax Trade-Off

The whole case for the S corp election comes down to self-employment tax. Under default LLC taxation the member is self-employed, so the entire net profit is generally subject to self-employment tax. That tax is 15.3% - "12.4% for social security" plus "2.9% for Medicare" - per the IRS. The 12.4% Social Security portion applies only up to an annually adjusted wage base (the IRS lists $168,600 for 2024), while the 2.9% Medicare portion has no cap; an additional 0.9% Medicare tax applies above $250,000 (married filing jointly), and self-employment tax kicks in once net earnings reach $400. The member figures the tax on Schedule SE (Form 1040) - used, per the IRS, "to figure the tax due on net earnings from self-employment" - and can deduct half of it. The underlying profit reaches the return through Schedule C for a single-member LLC or Form 1065 for a multi-member LLC.

Under the S corp election, the owner splits pay in two: a salary subject to FICA, and profit distributions that are generally not subject to self-employment or FICA tax. The savings apply only to the distribution portion - not the whole profit. Estimate your own numbers with our self-employment tax calculator before deciding. The salary cannot be set artificially low: the IRS treats an officer who provides services as an employee whose "payments … are treated as wages," and courts routinely reclassify low-salary-plus-large-distribution setups as wages.

Payroll and Admin: The Cost Side

The S corp election is not free. Because a working owner must be paid a reasonable salary, the business has to run payroll - withholding, deposits, and quarterly and annual payroll returns - for at least one employee. It must also file a separate business return: Form 1120-S each year, with a Schedule K-1 to each owner, instead of the Schedule C a default single-member LLC uses. Per the Instructions for Form 1120-S, that return is due March 15 for calendar-year filers, and a late Form 1120-S carries a penalty of $255 per shareholder per month, up to 12 months, for the 2026 tax year. The salary itself must be defensible: the IRS guidance on paying yourself says officer wages should be "commensurate with your duties." Most owners pay a payroll provider or accountant for this. A default LLC, by contrast, often files no separate federal income tax return at all and runs no payroll for its owner.

That is the trade to weigh: the self-employment-tax savings on distributions versus the added payroll, bookkeeping, and Form 1120-S cost. When profit is modest, those costs can exceed the savings; when profit is well above a reasonable salary, the savings can dominate. There is no fixed profit threshold in the Internal Revenue Code that makes the election automatically worthwhile - see LLC vs S corp taxes for a worked example.

The election also adds recurring obligations that are easy to underestimate. Beyond the annual Form 1120-S, the business owes payroll tax deposits, quarterly employment-tax filings, and a year-end W-2 for the owner-employee, all of which typically require a payroll service or accountant. A default single-member LLC carries none of that: its profit flows straight to Schedule C, and its self-employment tax is settled on Schedule SE with the owner's individual return. Weigh those ongoing costs, not just the headline tax saving, before you file.

When to Keep a Plain LLC

Keeping default LLC taxation tends to fit when the election's savings would not cover its extra cost, or when the eligibility rules get in the way. Consider staying with a plain LLC when several of these are true:

• Profit is modest, uneven, or absent. Savings come only from profit above a reasonable salary; if little remains, they can be smaller than payroll and accounting fees.
• You want the simplest compliance. A single-member LLC often files no separate federal return and runs no payroll for its owner.
• You are ramping up. Many owners start with a default LLC and an operating agreement, then elect S status later as profit grows - you forfeit nothing permanently by waiting.
• Your ownership would not qualify. The S corp limits below can rule out a partnership, corporate, or foreign owner.

When the S Corp Election Makes Sense

The S corp election tends to make sense when consistent profit exceeds a reasonable salary by enough that the self-employment-tax savings outweigh payroll and filing costs. It is most often considered when:

• Net profit is well above a reasonable salary. The larger and more predictable the surplus taken as distributions, the larger the savings.
• The business can afford payroll and a Form 1120-S. The all-in cost of a provider or accountant should be less than the tax saved.
• Owners meet S corp eligibility. No more than 100 US individual (or certain trust/estate) owners, and one class of stock, under 26 U.S. Code § 1361(b).
• The owner performs the services personally, taking a defensible salary plus distributions.

Because the math turns on your profit, reasonable salary, and state, confirm it with a CPA before filing Form 2553.

How to Elect (and Reverse) S Corp Status

Adding the election is a single IRS filing, not a re-formation. An eligible LLC files Form 2553, "Election by a Small Business Corporation." Timing is strict: per the Instructions for Form 2553, file "no more than 2 months and 15 days after the beginning of the tax year the election is to take effect, or at any time during the tax year preceding" it - generally March 15 for a calendar-year election effective January 1. Missing it is not always fatal: the instructions provide late relief under Rev. Proc. 2013-30 if requested "within 3 years and 75 days of the effective date." The LLC keeps its name, EIN, and operating agreement.

To reverse the election later, the LLC revokes its S status with the IRS and returns to default taxation; after a termination the IRS generally bars re-electing for five years without consent. Whether you elect or revoke, confirm any new payroll and business tax obligations for the year the change takes effect.

Common Mistakes to Avoid

• Treating it as entity-vs-entity. An LLC can elect S corp taxation; you rarely have to give up the LLC to get S corp tax treatment.
• Electing with little profit. Payroll and Form 1120-S costs can exceed the self-employment-tax savings when net profit is modest.
• Setting the salary too low. The IRS requires reasonable wages before distributions and can recharacterize distributions as wages, with back taxes and penalties.
• Missing the Form 2553 deadline, generally 2 months and 15 days into the tax year, forcing reliance on Rev. Proc. 2013-30 relief.
• Forgetting payroll and the annual return. An electing LLC must run payroll for a working owner and file Form 1120-S each year.
• Skipping the state analysis. Some states impose extra fees or taxes on S corporations; check before you elect.

Frequently Asked Questions

Is an LLC or S corp better?

It is not an either/or. An LLC is a legal entity; an S corp is a federal tax election an eligible LLC can make on Form 2553. A plain LLC is simpler; the S corp election can lower self-employment tax once profit reliably exceeds a reasonable salary, but it adds payroll and a Form 1120-S return.

Can an LLC be an S corp?

Yes. An eligible LLC can elect S corporation tax treatment by filing IRS Form 2553. The LLC keeps its state-law status and liability shield; only its federal tax classification changes. This is why "LLC or S corp" is usually a tax-election question, not a choice between two entities.

How does the S corp election save on self-employment tax?

A default LLC member pays 15.3% self-employment tax on all net earnings. Under the S corp election, the owner takes a reasonable salary subject to FICA, and profit distributions above that salary are generally not subject to self-employment or FICA tax, which is where the savings come from.

When is the S corp election worth it?

When consistent net profit exceeds a reasonable salary by enough that the self-employment-tax savings outweigh payroll and Form 1120-S costs. There is no fixed profit threshold in the Internal Revenue Code, so run the numbers with a CPA before electing.

Does the S corp election require payroll?

Effectively yes. The IRS treats a shareholder who performs services as an employee who must receive reasonable wages through payroll and subject to FICA before taking distributions. That payroll, plus the annual Form 1120-S return, is the main administrative cost a plain LLC avoids.

What is the deadline to make the S corp election?

File Form 2553 no more than 2 months and 15 days after the start of the tax year the election takes effect, or during the prior tax year. Missed deadlines may qualify for late relief under Rev. Proc. 2013-30 within 3 years and 75 days of the effective date.

Related

• S corp vs LLC (paired)
• LLC vs S corp: how taxes differ
• Form 2553 explained
• Self-employment tax, explained
• What is an LLC?
• S corp vs C corp
• Self-employment tax calculator
• Schedule C, explained

Sources

1. IRS - Limited Liability Company (LLC) (business structure allowed by state statute; members).
2. IRS - S Corporations (definition; election; eligibility).
3. IRS - Self-Employment Tax (15.3% = 12.4% + 2.9%; $168,600 for 2024; 0.9%; $400).
4. IRS - S Corporation Employees, Shareholders and Corporate Officers (reasonable wages).
5. IRS - About Form 2553 (election by a small business corporation).
6. IRS - Instructions for Form 2553 (2 months 15 days deadline; Rev. Proc. 2013-30).
7. IRS - About Form 1120-S (S corporation return; Schedule K-1).
8. IRS - Instructions for Form 1120-S (March 15 due date; $255 per-shareholder late penalty).
9. IRS - Paying Yourself (officer wages commensurate with duties).
10. IRS - About Schedule SE (Form 1040) (figures self-employment tax; half deductible).
11. IRS - About Schedule C (Form 1040) (single-member LLC profit or loss).
12. IRS - About Form 1065 (multi-member LLC partnership return).
13. Cornell LII - 26 U.S. Code § 1361 (small business corporation limits).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Whether the S corp election fits a business depends on facts this page cannot assess, including your profit, reasonable salary, and state. Verify with the IRS and a CPA before acting.