Should You Choose an LLC, S-Corp, or C-Corp? (w/Examples) + FAQs

This article reflects federal rules as of June 2026 and covers tax year 2026. State rules are noted as examples only (California, Delaware, Wyoming, Texas). Tax law changes — confirm current figures with the IRS or your state agency before you file or form an entity.

Quick Answer: For tax year 2026, choose an LLC for simple liability protection and pass-through taxes, elect S-Corp status once net profit clears about $80,000 to cut self-employment tax, and pick a C-Corp only if you plan to raise venture capital or keep profits inside the company.

Picking the wrong business structure can cost you thousands in extra self-employment tax, trap your profits behind double taxation, or scare off investors who only fund corporations. The choice is not just paperwork — it decides how much tax you pay, how you raise money, and how much personal risk you carry if the business is sued.

Timing matters too. To get S-Corp tax treatment for 2026, an existing business had to file Form 2553 by March 17, 2026 (the first business day after the March 15 deadline), so many owners reading this are already planning for 2027. About 35 million small businesses operate in the U.S. according to the U.S. Small Business Administration, and most start as the default structure without realizing a single election could save them real money.

Here is what you will learn:

🧱 The exact difference between an LLC (a legal shell) and an S-Corp or C-Corp (tax statuses), so you stop comparing the wrong things.
💰 How the S-Corp “reasonable salary” split cuts the 15.3% self-employment tax, with the full math.
📊 Three worked dollar examples at $60K, $200K, and venture-scale income.
⚖️ When C-Corp double taxation actually helps instead of hurts.
🗓️ The deadlines, forms, and costs — including the California $800 trap — that quietly drain new owners.

LLC vs. S-Corp vs. C-Corp: What They Really Are

The single biggest mistake people make is treating these as three competing entities. They are not the same kind of thing.

An LLC (Limited Liability Company) is a legal structure created under state law. It exists to separate your personal assets from your business debts. If your LLC is sued, your house and personal savings are generally protected. But the IRS does not have an “LLC” tax box — by default, a one-owner LLC is taxed as a sole proprietorship, and a multi-owner LLC is taxed as a partnership.

An S-Corp and a C-Corp are tax statuses, not entities you “form” at the courthouse. You first create a legal entity (an LLC or a state corporation), then you tell the IRS how you want it taxed. An LLC can choose to be taxed as an S-Corp by filing Form 2553. This is why “LLC vs. S-Corp” is really “LLC taxed by default vs. LLC taxed as an S-Corp.”

The consequence of confusing these is real: people dissolve a perfectly good LLC to “become an S-Corp,” paying new state fees, when all they needed was to mail one form. A common misconception is that an S-Corp is harder to sue through or offers more liability protection than an LLC. It does not — liability protection comes from the legal shell (the LLC or corporation), not the tax election. What you should do is pick your liability shell first, then choose the tax election that saves the most money.

The Pass-Through vs. Entity-Level Tax Divide

The deepest dividing line is who pays the tax. LLCs (default) and S-Corps are pass-through entities: the business itself pays no federal income tax, and profits “pass through” to your personal Form 1040. You pay one layer of tax at your individual rate.

A C-Corp is a separate taxpayer. It files Form 1120 and pays a flat 21% federal corporate rate for 2026. Then, if it hands profits to you as dividends, you pay tax again on your personal return — the famous “double taxation.” The consequence is that fully distributed C-Corp profits can face a combined federal rate near 36.8% for high earners, per BermudaFin’s 2026 analysis, versus a single layer for pass-throughs.

The misconception here is that 21% always beats your personal rate. It only wins if you keep the money inside the company. The moment you pull it out as a dividend, the second tax layer can erase the advantage. What you should do is ask one question: will I reinvest profits, or pay myself? Reinvestors lean C-Corp; takers lean pass-through.

Which Situation Applies to You?

The right answer depends entirely on your numbers and your goals. Find your situation below, then read the matching section.

You are a freelancer or solo owner under ~$80K net profit. A plain LLC (taxed as a sole proprietor) is usually best. The S-Corp savings will not cover the payroll and accounting costs. Read the $60K example below.
You are a profitable owner over ~$80K–$100K net profit. An LLC that elects S-Corp status usually wins. The self-employment tax savings beat the extra costs. Read the S-Corp salary section.
You plan to raise venture capital or issue stock to many investors. A Delaware C-Corp is almost mandatory. VCs rarely invest in LLCs or S-Corps. Read the C-Corp section.
You want to keep profits inside the business to grow. A C-Corp’s flat 21% rate may beat your personal rate. Read the retained earnings discussion.
You are a non-U.S. resident. The S-Corp is off the table — shareholders must be U.S. persons. You choose between an LLC and a C-Corp.

How the S-Corp Cuts Self-Employment Tax

This is the reason most small business owners elect S-Corp status, and it is your biggest potential tax win.

As a default LLC owner, all your net profit is hit by the 15.3% self-employment (SE) tax — 12.4% for Social Security plus 2.9% for Medicare. For 2026, the 12.4% Social Security portion applies only up to the wage base of $184,500, per the Social Security Administration; the 2.9% Medicare portion has no cap.

When you elect S-Corp status, you become an employee of your own company. You split your income into two buckets. The first is a reasonable salary, which is a W-2 wage subject to the 15.3% payroll tax. The second is a distribution, which is the leftover profit — and distributions are not subject to self-employment or payroll tax. You only pay income tax on them, not the 15.3%.

The catch is the word reasonable. The IRS requires that your salary reflect what you would pay someone else to do your job. If you pay yourself a $0 salary and take everything as a distribution, you are inviting an audit, back taxes, penalties, and interest. The consequence of an unreasonably low salary is that the IRS can reclassify your distributions as wages and bill you for the unpaid payroll tax plus penalties. What you should do is document a defensible salary using industry data (sites like the Bureau of Labor Statistics help), and keep that proof.

Worked Example: Freelancer at $60,000 (Why You Wait)

Maria is a freelance graphic designer in Texas with $60,000 in net profit for 2026. As a default LLC, she owes roughly $8,478 in SE tax (15.3% on about 92.35% of profit).

If she elects S-Corp status and pays herself a reasonable salary of $40,000, payroll tax on that salary is about $6,120 (15.3%). She saves about $2,358 in payroll tax. But an S-Corp must run payroll and file a separate return (Form 1120-S), which often costs $1,500–$2,500 a year in payroll software and accounting. At $60K, the savings barely beat the costs. The break-even point sits around $75,000–$80,000 in profit, per Wolf Tax’s 2026 analysis. What Maria should do is stay a simple LLC for now and revisit once profit clears $80K.

Worked Example: Agency Partners at $200,000

David and Priya run a two-partner marketing agency taxed as an S-Corp, with $200,000 in net profit for 2026. As a default partnership, the full $200,000 would face SE tax — about $24,000+ before the Social Security cap kicks in.

As an S-Corp, they each take a $70,000 reasonable salary ($140,000 total) and split the remaining $60,000 as distributions. Payroll tax applies only to the $140,000 in wages, so roughly $60,000 escapes the 15.3% tax. That shields about $9,180 in tax (15.3% × $60,000). Even after $3,000 in extra compliance costs, they keep about $6,000+ — matching the Monaco CPA finding that savings above $150K commonly exceed $6,000 a year. What they should do is confirm both salaries are defensible for their roles before banking the savings.

S-Corp Election Decision	Result for the Owner
Net profit under $80,000	Savings usually do not cover payroll and accounting costs; stay a default LLC
Net profit $80,000–$150,000	Sweet spot; typical savings of $2,000–$8,000 a year for 2026
Net profit over $150,000	Strong savings, often $6,000+ a year, but the salary must stay defensible

The QBI Deduction Changes the Math

Before you assume pass-through always wins, you must factor in the Qualified Business Income (QBI) deduction under Section 199A. It lets eligible pass-through owners deduct up to 20% of their business income.

This deduction was scheduled to expire after 2025, but the One Big Beautiful Bill Act (OBBBA) made it permanent, per the Reed Corporation CPA firm. For 2026, the full deduction is available below taxable income of $201,750 (single) and $403,500 (married filing jointly), per Grossman Yanak & Ford. Above those levels, wage limits and the “specified service business” rules begin to phase it out, ending around $276,750 (single) and $553,500 (joint) for 2026.

The consequence is huge: a pass-through owner can deduct 20% of profit that a C-Corp owner cannot. A common misconception is that the C-Corp’s 21% rate is unbeatable. But a pass-through owner in the 24% bracket who also gets the 20% QBI deduction may pay an effective rate well below 21% — with no second layer of dividend tax. What you should do is run both scenarios before assuming the C-Corp wins, because QBI often tips the scale back to the LLC or S-Corp.

When a C-Corp Actually Makes Sense

C-Corps get a bad reputation for double taxation, but they are the right tool for specific goals.

The first is raising venture capital. Almost every VC fund and angel investor requires a Delaware C-Corp. Pass-through entities pass tax items to investors, which institutional funds and foreign investors cannot accept. If you dream of Silicon Valley funding, you start as a Delaware C-Corp. The consequence of starting as an LLC is a costly, lawyer-heavy conversion later, often right when you can least afford the distraction.

The second is retaining earnings to grow. If you reinvest profits into equipment, hiring, or R&D instead of paying yourself, the flat 21% rate can beat a high personal rate, and there is no dividend layer until you distribute. The third is Qualified Small Business Stock (QSBS), which can let early C-Corp shareholders exclude large capital gains when they sell — a benefit unavailable to LLCs.

Worked Example: The Funded Startup

Lin founds a SaaS startup and expects to raise a seed round in 2027. She forms a Delaware C-Corp from day one. The company loses money early, so the 21% rate is irrelevant — what matters is that her investors can legally fund a C-Corp, and her early shares may qualify for QSBS. If Lin had formed an LLC, she would face thousands in legal fees converting before the round. What she should do is form the C-Corp now and pay herself a modest W-2 salary, leaving remaining capital inside the company to grow.

C-Corp Choice	What It Means for You
You will raise VC or issue stock widely	Nearly required; Delaware C-Corp is the investor standard
You will reinvest profits, not take them out	The flat 21% rate can beat your personal rate, with no dividend layer yet
You will pull all profits as dividends each year	Double taxation can push your combined federal rate toward 36.8%

Liability Protection: The Common Thread

All three structures protect your personal assets — that protection comes from forming a legal entity, not from the tax election.

To keep that shield, you must respect the “corporate veil.” That means keeping a separate business bank account, never mixing personal and business funds, signing contracts in the company’s name, and keeping basic records. The consequence of mixing funds (called “commingling”) is that a court can “pierce the veil” and hold you personally liable for business debts. What you should do is open a dedicated business account the day you form, even before you have customers.

A common misconception is that a sole proprietorship offers some protection. It offers none — you and the business are legally the same person. That alone is a strong reason to form at least an LLC before you take on customers, employees, or debt.

Deadlines, Costs, and Timing

The numbers and dates below decide whether your plan saves money or backfires.

Formation cost. State filing fees range widely — Wyoming charges about $100 to file with no franchise tax, while California charges a $800 minimum annual franchise tax on every LLC regardless of income, per The American LLC. Delaware adds a flat $300 annual LLC tax. The consequence of ignoring this is a surprise $800 bill in year two — a California LLC earning $0 still owes it.

The S-Corp deadline. To elect S-Corp status for the current tax year, you generally must file Form 2553 within 75 days of the start of that year — usually by March 15. Miss it, and you wait until next year unless you qualify for late-election relief, available within three years and 75 days of the intended date, per The Tax Adviser.

Tax-return deadlines. S-Corps (Form 1120-S) and partnerships file by March 15; C-Corps (Form 1120) file by April 15. Missing the S-Corp deadline triggers a penalty of about $245 per shareholder, per month late. What you should do is calendar these dates the moment you form.

Mistakes to Avoid

Treating an LLC and S-Corp as rivals. They are different layers; you can have both. The outcome of confusion is dissolving a good LLC and paying needless new fees.
Electing S-Corp status too early. Below ~$80K profit, compliance costs swallow the savings, leaving you worse off.
Paying yourself a $0 or tiny salary. The IRS reclassifies it as wages, adding back taxes, penalties, and interest.
Skipping payroll after the S-Corp election. Distributions without a real W-2 salary break the rules and trigger audits.
Forming an LLC for a venture-backed startup. You will pay thousands to convert to a C-Corp before any funding round.
Ignoring the California $800 franchise tax. It hits even with zero revenue, draining new owners who budgeted only the filing fee.
Commingling personal and business funds. This lets courts pierce the veil and reach your personal assets.
Assuming your state follows federal rules. Many states do not fully recognize the QBI deduction or S-Corp treatment, so confirm with your state agency.

Do’s and Don’ts

Do form a legal entity (LLC or corporation) before taking on customers — why: it is your only personal-asset shield.
Do run the S-Corp math at your real profit level — why: the savings only appear above the ~$80K break-even.
Do document a reasonable salary with industry data — why: it is your defense if the IRS questions it.
Do keep a separate business bank account — why: it protects the corporate veil from being pierced.
Do check your state’s conformity to federal rules — why: states like California impose extra taxes the IRS does not.
Don’t pick a structure based on the name alone — why: “Inc.” impresses no one and may cost you in taxes.
Don’t delay the Form 2553 deadline — why: missing March 15 costs you a full year of savings.
Don’t strip your S-Corp salary to near zero — why: it is the fastest way to trigger an audit.
Don’t choose a C-Corp just to pay yourself everything — why: double taxation erases the 21% advantage.
Don’t assume QBI is gone — why: OBBBA made it permanent, and it can beat the C-Corp rate.

Pros and Cons at a Glance

Structure	Pros	Cons
LLC (default)	Simplest setup and lowest cost; full liability shield; flexible; eligible for QBI	All profit hit by 15.3% SE tax; no SE-tax savings
S-Corp	Cuts SE tax via salary/distribution split; keeps pass-through and QBI	Must run payroll; extra return and costs; salary must be reasonable; U.S. owners only
C-Corp	Flat 21% rate; required for VC funding; QSBS gains; reinvest profits cheaply	Double taxation on dividends; no QBI; more paperwork and compliance

What to Do Next

Confirm your numbers. Estimate your 2026 net profit. Under ~$80K, default LLC; over it, model the S-Corp.
Form your legal shell. File LLC articles with your state, or incorporate in Delaware if you will raise capital. Open a business bank account the same week.
Get an EIN. Apply free at the IRS EIN page — never pay a third party for this.
Make your tax election if needed. File Form 2553 for S-Corp status by March 15, or Form 8832 to be taxed as a C-Corp.
Set up payroll if you elected S-Corp, and lock in a documented reasonable salary.
Call a pro when income exceeds $150K, you have partners or investors, you operate in multiple states, or you face an IRS notice. A CPA or tax attorney typically charges $300–$1,500 for an entity-and-election review — far less than a wrong choice costs.

This article is educational and not a substitute for personalized advice from a licensed CPA or tax attorney for your specific situation.

Frequently Asked Questions

Is an LLC the same as an S-Corp? No. An LLC is a legal entity formed with your state, while an S-Corp is a federal tax status. An LLC can elect to be taxed as an S-Corp by filing Form 2553, so you can be both at once.

At what income should I switch my LLC to an S-Corp? Around $80,000 in net profit for 2026. Below that, payroll and accounting costs usually exceed the self-employment tax savings. Above $80K–$100K, the S-Corp election typically pays off.

How much can an S-Corp save me on taxes? Roughly $2,000 to $15,000+ a year for 2026, depending on profit and your salary-to-distribution split, per Uncle Kam’s 2026 guide. Savings come from distributions avoiding the 15.3% self-employment tax.

What is a “reasonable salary” for an S-Corp owner? Whatever you would pay someone else to do your job. The IRS uses role, experience, and industry pay data. Paying $0 or an artificially low salary invites reclassification, back taxes, and penalties.

Why do startups choose C-Corps? Because investors require them. Venture capital funds and many angels will only fund Delaware C-Corps, since pass-through entities pass tax items to investors that institutional and foreign funds cannot accept.

What is double taxation? It is two layers of tax on C-Corp profits. The corporation pays 21% on profit, then shareholders pay 0%–20% (plus possible 3.8% NIIT) on dividends, pushing the combined federal rate toward 36.8% for high earners.

Does an S-Corp or C-Corp give better liability protection than an LLC? No. Liability protection comes from forming a legal entity, not from the tax election. An LLC, S-Corp, and C-Corp offer the same personal-asset shield if you keep the corporate veil intact.

Can a non-U.S. resident own an S-Corp? No. S-Corp shareholders must be U.S. citizens or residents. Non-residents must choose between an LLC or a C-Corp for their U.S. business.

Do I still get the QBI deduction in 2026? Yes. The One Big Beautiful Bill Act made the 20% QBI deduction permanent. For 2026 the full deduction applies below $201,750 (single) and $403,500 (married filing jointly).

What is the deadline to elect S-Corp status? Generally March 15 — within 75 days of the start of the tax year. Miss it and you wait until next year, unless you qualify for late-election relief within three years and 75 days.

Which is cheapest to start, an LLC or a corporation? An LLC, in most states. Wyoming charges about $100 with no franchise tax, while California imposes an $800 annual franchise tax on LLCs regardless of income. Corporations often carry higher ongoing compliance costs.

Can I change my structure later? Yes. You can elect S-Corp status, revoke it, or convert an LLC to a C-Corp. But conversions can trigger taxes and legal fees, so plan ahead, especially before raising investment.

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