LLC, S corporation or C corporation? Choosing by owner status, state, business type and growth plans
There's no single best entity; it depends on who owns it, the state, the business and your plans. An LLC is simple and flexible. Once profits are steady, an S election can cut self-employment tax, but only U.S. citizens and tax residents may own an S corporation. For investors, foreign owners or the Section 1202 exclusion, choose a C corporation (21% federal).
- 21%
- The federal income tax rate on C corporations; dividends to individual shareholders are taxed again at 0%, 15% or 20%
- 15.3%
- Self-employment tax (12.4% Social Security + 2.9% Medicare). LLC owners pay it on all profit; S corporation owners pay it only on their salary. The 2026 Social Security wage base is $184,500
- 20%
- The qualified business income (QBI, Section 199A) deduction for owners of pass-through entities such as LLCs and S corporations, made permanent by the 2025 tax law. It doesn't apply to C corporations
- 100
- The maximum number of S corporation shareholders. They must be U.S. citizens or tax-resident individuals (plus estates, certain trusts and the like), with no foreign or corporate shareholders and one class of stock
At a glance
- Entity choice has two layers: the legal form (LLC or corporation) and the tax classification (sole proprietorship, partnership, S corporation, C corporation). An LLC can elect to be taxed as an S or C corporation.
- Owner status decides whether an S election is possible: any foreign owner (a nonresident for tax), foreign company or corporate owner rules it out, leaving an LLC or C corporation.
- Just starting, modest profit: usually an LLC. Steady profit with a meaningful amount left after a reasonable salary: consider an S election to save 15.3% self-employment tax.
- Raising investment, planning an IPO, having foreign owners, or aiming for the Section 1202 exclusion: usually a C corporation (often a Delaware C corporation).
- Rental property and appreciating assets: usually held in an LLC, not an S or C corporation, where taking them out or selling them later is heavily taxed.
How do LLCs, S corporations and C corporations relate?
An LLC and a corporation are legal forms under state law: they determine liability protection and how the company is run. Sole proprietorship, partnership, S corporation and C corporation are federal tax classifications: they determine how tax is figured. Look at the two layers separately. An LLC can be taxed as a sole proprietorship or partnership, or elect to be taxed as an S or C corporation.
the left column is what you form with the state; the right columns show how it's taxed federally.
| Formed with the state as | Taxed by default as | Can elect |
|---|---|---|
| Single-member LLC (U.S. owner) | Sole proprietorship, on Schedule C / E of the owner's Form 1040 | S corporation (Form 2553) or C corporation (Form 8832) |
| Single-member LLC (foreign owner) | Disregarded entity filing a pro forma 1120 + Form 5472 | C corporation (not S) |
| Multi-member LLC | Partnership, Form 1065, with a K-1 for each member | S corporation (if every owner qualifies) or C corporation |
| Corporation (Inc. / Corp.) | C corporation, Form 1120 | S corporation (Form 2553) |
Key points:
- Liability protection: LLCs and corporations both separate business debts from personal assets, as long as accounts are kept separate and the company is run as a company.
- Changing an LLC's tax classification: after electing C corporation status on Form 8832, you generally can't change again for 60 months. A new entity's first election doesn't count.
- An S corporation isn't a type of company: it's a tax election (Form 2553) that LLCs and corporations can both make.
How do the three tax classifications compare federally?
LLCs (sole proprietorship or partnership) and S corporations are pass-throughs: the company pays no federal income tax and the profit flows to the owners' personal returns. The difference is that an LLC owner pays 15.3% self-employment tax on all profit, while an S corporation owner pays payroll taxes only on a reasonable salary. A C corporation pays 21% itself, and shareholders are taxed again on dividends.
compare the three classifications item by item.
| Item | LLC (sole prop / partnership) | S corporation | C corporation |
|---|---|---|---|
| Entity-level income tax | None; profit passes through | None; profit passes through | 21% |
| Owner's Social Security and Medicare | 15.3% self-employment tax on all profit | Only on salary (split between company and owner) | Only on salary |
| Taking money out | Draws anytime, no extra tax | Distributions beyond salary avoid payroll taxes | Dividends taxed again at 0% / 15% / 20% |
| 20% QBI deduction | Yes | Yes | No |
| Owner restrictions | None | Up to 100, U.S. citizens or tax residents and the like | None |
| Returns | Schedule C / Form 1065 | Form 1120-S + a K-1 for each owner | Form 1120 |
| Bookkeeping and payroll | Simplest | Owner must take a reasonable salary through payroll | Corporate books; dividends documented |
A simple example: a consulting business with $120,000 of profit a year.
- As an LLC: most of the $120,000 is subject to 15.3% self-employment tax, plus personal income tax.
- With an S election: the owner takes a reasonable salary (say $60,000), and only the salary bears payroll taxes. The rest of the profit is still subject to income tax but not payroll taxes. The cost is running payroll, filing Form 1120-S and somewhat higher accounting fees.
- As a C corporation: the company pays 21% first, and money kept in the company isn't taxed again for now. Dividends are taxed when paid out. This suits owners who plan to reinvest most of the profit.
The actual savings depend on your profit, salary, state taxes and household situation. Our S corporation guide goes through the math in more detail.
Owner status decides what you can choose
Owner status mostly matters for S corporations: shareholders must be U.S. citizens or U.S. tax-resident individuals (plus estates, certain trusts and some tax-exempt organizations). A foreign owner, a foreign company or a corporate owner rules out an S election, and an existing S corporation's election ends as soon as an ineligible shareholder comes in.
find the row for the owner's tax status. This is tax status, not immigration status.
| Owner | LLC | S corporation | C corporation |
|---|---|---|---|
| U.S. citizen or green card holder | Yes | Yes | Yes |
| Visa holder in the U.S. who is a tax resident under the substantial presence test (e.g. most H-1B and L-1) | Yes | Yes, as long as they stay a tax resident | Yes |
| F-1 or J-1 student or scholar (usually a nonresident for the first years) | Yes | No (while a nonresident) | Yes |
| Foreign person living abroad | Yes; a single-member LLC files Form 5472 | No | Yes; dividends face 30% withholding, generally 10% for China residents under the treaty |
| Foreign company or U.S. parent company | Yes | No | Yes; common for parent–subsidiary setups |
Keep in mind:
- Tax status changes: an H-1B holder moving home, an F-1 student becoming a tax resident, or a green card holder giving up the card all affect S corporation eligibility. Check right away when an owner's status changes.
- Foreign-owned LLCs: a single-member LLC files a pro forma 1120 and Form 5472 every year, with a $25,000 penalty per missed form. A multi-member LLC is taxed as a partnership and must withhold tax on foreign partners' effectively connected income.
- Whether you may work for your own company is an immigration question: owning a company on a visa isn't the same as being allowed to work for it. This guide covers tax and corporate matters only, not work authorization.
- Getting an EIN: a responsible party with an SSN or ITIN can apply online; without one, fax Form SS-4.
State differences: where you form vs. where you operate
The state you form in and the state where you operate and pay state tax are two different things. You generally register and pay tax where you and the business actually are. Forming in Delaware or Wyoming just to "save tax" often means registering as a foreign entity at home as well, with a second annual fee.
find the row for the state; each state's official fee schedule controls.
| State | LLC | S corporation | C corporation |
|---|---|---|---|
| North Carolina | Annual report $200 ($203 online) | S status recognized; franchise tax (minimum $200) | 2% corporate income tax (2026, with further cuts scheduled) + franchise tax (minimum $200) |
| Delaware | $400 annual tax (from tax year 2026) | An LLC with an S election still pays the LLC tax; a corporation files an annual report and franchise tax | Investor-friendly; annual report + franchise tax |
| Wyoming | Annual report, minimum $60 | No state income tax | No state income tax |
| California | $800 minimum each year, plus an LLC fee at higher revenue | $800 minimum, 1.5% state tax | $800 minimum, 8.84% state tax |
| New York | Publication requirement after formation | Recognized by the state; New York City doesn't recognize S status and taxes it as a corporation | State and NYC corporate tax |
| Texas | Franchise tax; below the state threshold no tax is due, but an information report is still filed each year | Same | Same; Texas has no personal income tax |
| Florida | No personal income tax | Generally no state corporate tax | 5.5% corporate income tax |
Simple rules for choosing a state:
- You and the business are in one state (a restaurant or a consulting practice in North Carolina, say): form there. It's the simplest.
- Raising venture capital or possibly going public: most use a Delaware C corporation, which investors and lawyers know well.
- You live abroad and sell online: Wyoming and Delaware LLCs are common, but warehouses and employees create state tax obligations too (see our guide on choosing a state).
- With an S election: check whether your state recognizes S status. North Carolina does; New York City doesn't.
Which entity fits which business?
The type of business determines how profitable it is, whether it needs investors and whether its assets appreciate, all of which drive the choice.
find the row for the business. It's a starting point; the final choice depends on the numbers.
| Business | Common choice | Why |
|---|---|---|
| Rental property, real estate holding | LLC (taxed as individual or partnership) | Real estate in an S or C corporation is heavily taxed when taken out or sold; an LLC also works with financing and title arrangements |
| Consulting, design, IT and other personal services | Start as an LLC, elect S once profit is steady | Profit comes mainly from the owner's work, so S savings on self-employment tax are clearest |
| Restaurants, retail, nail salons, tea shops and other local businesses | LLC, then consider S as it grows | Employees mean payroll anyway; with volatile profit, don't rush the S election |
| E-commerce (Amazon, TikTok Shop, Shopify) | U.S. owners: LLC or S; foreign owners: LLC or C | Platforms need an EIN and tax documentation; foreign owners can't elect S |
| Tech startups raising capital | Delaware C corporation | Investors want preferred stock and an option pool; C corporation stock may qualify for the Section 1202 exclusion |
| A Chinese company's U.S. subsidiary | C corporation | A corporate parent can't own an S corporation; related-party transactions and Form 5472 need planning together |
| Holding other companies' shares | Depends; often an LLC or C corporation | Depends on dividends, a later sale and cross-border tax |
Where the business is headed: funding, reinvesting, selling, going abroad
Look three to five years ahead: will you raise money, will profits be paid out or reinvested, and how might you eventually exit?
- You'll run it yourself and pay profits out: an LLC or S corporation is usually cheaper, with only one layer of tax.
- Most profit will be reinvested: the C corporation's 21% rate may help, though dividends are taxed again later.
- Venture capital or equity investment: generally requires a C corporation. An S corporation allows one class of stock and limits who can own it, which investors usually won't accept.
- Selling the company someday: C corporation stock that qualifies under Section 1202 and was issued after July 4, 2025 can exclude up to $15,000,000 of gain per company (or 10 times basis), if the company's gross assets don't exceed $75,000,000. Selling an LLC or S corporation often lets the buyer step up the basis of the assets, which has value too.
- Foreign owners or overseas branches later: an S corporation will be restricted, so plan ahead.
Can I change if I chose wrong?
Usually yes, but some directions carry a tax cost, so it pays to choose well at the start.
- LLC to S corporation: file Form 2553 within 2 months and 15 days after the start of the tax year it should take effect (or any time in the prior year). Late-election relief exists.
- LLC to C corporation: Form 8832, or a state-law conversion to a corporation. Usually tax-free, but you generally can't switch back within 60 months.
- S corporation to C corporation: revoke the S election; you generally can't re-elect S for 5 years.
- C corporation to S corporation: allowed, but selling assets that had appreciated before the switch within 5 years triggers built-in gains tax under C corporation rules.
- Moving real estate or other assets out of a company: an S or C corporation distributing appreciated property is generally treated as selling it at market value. That's another reason real estate usually sits in an LLC.
Key rules at a glance
| Item | Number / rule | Notes | Year |
|---|---|---|---|
| C corporation federal income tax | 21% | Flat rate; dividends taxed again at 0% / 15% / 20%, plus 3.8% for high incomes | 2026 |
| Self-employment / payroll tax | 15.3% | Social Security portion capped at $184,500 of wages in 2026 | 2026 |
| QBI deduction (Section 199A) | 20% | For owners of pass-throughs such as LLCs and S corporations, not C corporations | Permanent from 2026 |
| S corporation shareholders | Up to 100 | U.S. citizen or tax-resident individuals, estates, certain trusts; one class of stock | Current rules |
| Form 2553 deadline | 2 months 15 days | A calendar-year company electing for 2027 files by March 15, 2027 | 2026 |
| Form 8832 reclassification | 60 months | Generally no further change for 60 months | Current rules |
| Section 1202 stock | $15,000,000 | Issued after July 4, 2025; gross assets up to $75,000,000 | 2026 |
| Missed Form 5472 (foreign-owned single-member LLC) | $25,000 per form | Initial penalty per form, per year | Current rules |
| North Carolina corporate income tax | 2% | C corporations; franchise tax also applies, minimum $200 | 2026 |
| California minimum tax | $800 | LLCs, S corporations and C corporations | 2026 |
Common mistakes
"An S corporation is a kind of company I form with the state."
It's a federal tax election. An LLC or corporation files Form 2553 with the IRS; no new entity is formed.
"An S corporation always saves the most tax."
With modest profit, the extra payroll, return and accounting costs can exceed the self-employment tax saved, and foreign owners can't elect S at all.
"Forming in Delaware or Wyoming avoids my home state's taxes."
You generally register and pay tax where you and the business are, and forming elsewhere often adds a second annual fee.
"Rental property is better off in an S or C corporation."
Appreciating real estate in an S or C corporation is heavily taxed when taken out or sold. Real estate usually belongs in an LLC.
Common starting points
First answer three questions: who the owners are (their tax status), which state the business is in, and how you plan to grow over the next three to five years.
- Situation A: U.S. citizen or green card holder, solo service business, just starting. Form an LLC in your home state; elect S once profit is steady and meaningful after a reasonable salary.
- Situation B: on an H-1B or F-1 and want to start a company. First confirm whether your tax status allows an S election. Whether you may work for your own company on a visa is an immigration question to settle separately.
- Situation C: living abroad and starting a U.S. company for e-commerce or contract work. An LLC (with Form 5472 each year) or a C corporation; no S election. Choose the state based on where warehouses, employees and partners are.
- Situation D: raising investment, or a Chinese parent setting up a U.S. subsidiary. Usually a C corporation (VC-backed companies mostly use Delaware). Plan Section 1202, related-party transactions and the cross-border structure together.
We don't just name an entity; we show you the numbers
Your entity choice shapes every year's taxes, payroll and returns, and your future fundraising and exit. We lay out the tax under each option, LLC, S corporation and C corporation, based on your owners, state, business and plans, then handle the formation, elections and filings.
- Big Four background, 15+ years in U.S. tax, 10 years of U.S.–China cross-border work, CPAs licensed in multiple states, also credentialed as EA and CAA
- Side-by-side projections: owner salary, self-employment tax, state taxes and fees, dividends and the QBI deduction
- Cross-border situations such as foreign owners, visa holders and Chinese parent companies, including Form 5472, withholding and related-party transactions
- Formation, EIN, Forms 2553 / 8832, payroll, annual reports and returns, all by one team
How it works
- 1
Free assessment
a 15-minute call (yclcpa.com/book) on the owners' status, the state, the business and expected profit, to set the direction. For full projections and planning, book a paid in-depth consultation (yclcpa.com/advisory).
- 2
Projections
federal tax, state tax, annual fees and payroll cost for each entity type, side by side, with the pros and cons.
- 3
Setup
forming the company, getting the EIN, filing Form 2553 or 8832 as needed, and setting up payroll and bookkeeping.
- 4
Annual review
when profit, owners or plans change, we revisit whether to switch, and handle the annual report and returns.
FAQ
Should I form an LLC, an S corporation or a C corporation?
There's no single answer. Just starting with modest profit, an LLC is usually first. With steady profit, an S election can save self-employment tax. For investors, foreign owners or the Section 1202 exclusion, a C corporation is the usual choice.
Can a foreigner own an S corporation?
No. S corporation shareholders must be U.S. citizens or tax-resident individuals (plus estates, certain trusts and the like). A foreigner can own an LLC (a single-member LLC files Form 5472 every year) or a C corporation.
What's the difference between an LLC and an S corporation?
An LLC is a state legal form; an S corporation is a federal tax election, and an LLC can elect it. Once taxed as an S corporation, the owner takes a reasonable salary and only the salary bears payroll taxes.
Will forming in Delaware or Wyoming save my home state's taxes?
Generally not. You usually register and pay tax where you and the business are, and forming elsewhere adds a second annual fee. Delaware C corporations stand out mainly when raising venture capital.
Can YCL help me choose and set it up?
Yes. We lay out the tax under each option based on your owners, state, business and plans, then form the company, get the EIN, file the elections and handle payroll and returns. Start with a free 15-minute call (yclcpa.com/book).
Related guides
- Business & Self-EmployedShould my LLC elect S corporation status? Form 2553 deadlines, reasonable salary, real savings and North Carolina rules
- Business & Self-EmployedWhen does a C corporation make sense? The 21% rate, double taxation, section 1202 stock and foreign owners
- Business & Self-EmployedWhich state should I form my U.S. company in?
Sources
- IRS: Business structures; LLC filing as a corporation or partnership (irs.gov)
- IRS: Instructions for Form 2553; Form 8832 and Instructions
- IRS: S corporations; Publication 542, Corporations; Self-employment tax
- IRS: Qualified business income deduction (Section 199A); Section 1202 (qualified small business stock)
- IRS: Instructions for Form 5472; Publication 515
- Official fee and rate information from the NC Department of Revenue, Delaware Division of Corporations, Wyoming Secretary of State, California FTB, New York State Department of Taxation and NYC Department of Finance, Texas Comptroller and Florida Department of Revenue
Haven't decided which entity to form?
Book a free 15-minute call. A CPA will point you in the right direction based on your owners, state and business. For full projections, book an in-depth consultation.
