LLC vs S-Corp vs C-Corp: Which One Fits a Non-US Founder?

When you start looking at forming a US company, three terms keep coming up: LLC, S-Corp, and C-Corp. They are usually presented as three equal options, and that framing is the first thing to drop: "LLC" names a legal form created under state law, while "S-Corp" and "C-Corp" name federal tax treatments. The IRS also bars non-resident alien shareholders from an S corporation, which closes that route to many founders outside the US. Here is what each one means in plain language.

One term to get right first. Non-resident alien is a US tax status, not a description of where you live. It turns on citizenship and the IRS residency tests. A US citizen living in Cairo is not a non-resident alien and can still be an eligible S corporation shareholder. Someone who is neither a US citizen nor a US tax resident is one, wherever they happen to be. Read every "non-resident" below in that narrow sense.

The three side by side

Decision point	LLC	S-Corp	C-Corp
What it is	A legal form created under state law	Federal Subchapter S tax treatment, by election	Federal Subchapter C tax treatment, usually of a state-law corporation
Open to a non-resident alien owner?	Yes — no residency test on members	No — shareholders "may not be... non-resident alien shareholders"	Yes — no residency bar on shareholders
Other owner limits	None at federal level	Domestic corporation, no more than 100 shareholders, one class of stock	No Subchapter S caps on shareholder count or share classes
Default federal tax treatment	One member → disregarded; two or more → partnership	Income and losses reported by the shareholders	Company pays tax on profits; shareholders taxed again on dividends
How it is chosen	Default applies unless the LLC elects corporate taxation	Form 2553, signed by all shareholders	Automatic for a state-law corporation; an eligible LLC can elect it
Usual fit	Freelancers, agencies, SaaS and service businesses run from outside the US	US-resident owners weighing self-employment tax	Companies raising from US venture funds

Rows follow the IRS pages listed at the end of this article, checked on 20 September 2026.

The legal form and the tax treatment are two different things

This is the distinction that makes the rest of the comparison make sense. "LLC" is a creature of state law — the IRS calls it "a business structure allowed by state statute". It is not a tax category. The IRS then classifies that same company for federal tax purposes: for a domestic LLC, one member means a disregarded entity and two or more mean a partnership, unless the company elects otherwise. Exceptions exist, so confirm your own classification rather than assuming the default holds.

An eligible LLC can elect corporate taxation on Form 8832 — or, where it is electing S corporation status, on Form 2553 alone, since the SS-4 instructions note the LLC "doesn't need to file Form 8832 in addition to Form 2553."

So an LLC can be taxed as a corporation without ceasing to be an LLC, and a corporation is taxed under Subchapter C unless it elects Subchapter S. What a non-resident alien owner cannot reach is Subchapter S itself, whichever legal form sits underneath it.

First: LLC (Limited Liability Company)

The LLC is a common starting point for founders outside the US, for practical reasons:

• Lighter governance: LLC statutes generally require fewer mandatory formalities than corporation statutes. The specifics come from the state's LLC act and your own operating agreement, so check both rather than assuming there are none.
• Tax flexibility: a single-member LLC is disregarded as separate from its owner by default and a multi-member LLC is treated as a partnership, so the company itself does not compute federal income tax; its income is reported by the owner or owners.
• Limited liability: the company's debts are its own. Delaware's LLC Act says no member or manager is personally obligated for them solely by reason of being a member or acting as a manager — though the same section lets a member accept personal liability by agreement, and the protection depends on running and documenting the company properly.
• Open to non-resident alien owners: you do not need to be a US resident or hold a Social Security number to form or own an LLC.

Often used by small and mid-sized businesses, freelancers, agencies, and digital service providers.

Default LLC taxation does not remove filing obligations. A US LLC that is a disregarded entity wholly owned by one foreign person is treated as a domestic corporation for the section 6038A reporting rules and files Form 5472 with a pro-forma Form 1120 for a year in which it had a reportable transaction. An LLC taxed as a C corporation instead files a full Form 1120 income tax return. At least 25% foreign ownership and reportable related-party transactions generally trigger Form 5472 as well, subject to the IRS exceptions. Form 5472 is an information return and does not settle your income or other tax obligations; see the Form 5472 guide.

Second: S-Corp (S Corporation)

An S-Corp is not a separate type of entity. It is Subchapter S tax treatment, elected with the IRS by an eligible corporation or LLC.

Its main appeal for US-based owners is reducing self-employment tax: the owner pays themselves a reasonable salary and takes the remaining profit as a distribution. But the IRS sets strict eligibility rules:

• Shareholders must be individuals, certain trusts, or estates. The IRS states that an S corporation may not have non-resident alien shareholders.
• No more than 100 shareholders.
• Only one class of stock.

If you are neither a US citizen nor a US tax resident, Subchapter S is not available to you — and that turns on your tax status, not on your address. Whether the election makes sense for someone who is eligible depends on profit level, payroll costs, and state taxes, so it is a question for an accountant rather than a rule of thumb.

Third: C-Corp (C Corporation)

"C-Corp" is shorthand for Subchapter C tax treatment. It applies by default to a corporation formed under state law, and an eligible LLC can elect it too, so the label describes how a company is taxed rather than what it was formed as.

• No Subchapter S owner caps: the 100-shareholder limit, the single-class-of-stock rule, and the non-resident-alien bar do not apply.
• What US venture funds expect: they typically invest in a Delaware C-corporation, largely because preferred stock and multiple share classes are standard corporate features.

Its main drawback is double taxation. The IRS puts it directly: "The profit of a corporation is taxed to the corporation when earned, and then is taxed to the shareholders when distributed as dividends." That matters less while profits are reinvested rather than distributed.

Often used by companies planning to raise outside capital or aiming for large-scale growth.

Before you decide

• Based outside the US and running an online business? An LLC is the usual starting point; our step-by-step guide to opening a US LLC from Egypt covers the sequence from state choice to banking.
• Planning to raise from US investors? A Delaware C-corporation is what they usually expect — note that this is a corporation, not a Delaware LLC. Read our comparison of Wyoming, Delaware, and New Mexico before choosing a state.
• Weighing a UK company instead? Read US LLC or UK LTD.

Companies do change structure as they grow, and converting later is a normal, costed step rather than a failure. What matters is starting from accurate facts and getting advice from a specialist on your own situation.

Review the current formation packages and pricing, or contact us and we will walk you through the whole process.

For a store-specific decision, read whether you need an LLC before starting dropshipping. Once you choose a structure, the LLC documents guide explains which records document formation, internal rules and your tax ID.