Can a Foreign Person Own an S Corp? Rules and Alternatives

A foreign person generally cannot own an S corp. Federal tax law bars nonresident aliens from holding S corporation stock, and a single ineligible shareholder terminates the S election for the entire company.¹ Foreign entrepreneurs who want to run a U.S. business have two realistic choices instead: a C corporation or an LLC. Both accept foreign owners without restriction, and both carry tax rules worth understanding before you form anything.

Are You Actually a “Foreign Person” Under This Rule

The tax code’s term is “nonresident alien,” and it is narrower than most people assume. You are a nonresident alien only if you are not a U.S. citizen and do not qualify as a U.S. resident under either the green card test or the substantial presence test.²

The green card test is simple. If you hold a lawful permanent resident card at any point during the calendar year, you are a U.S. tax resident and may hold S corporation stock.

The substantial presence test is a day count. You pass it if you were physically in the U.S. for at least 31 days during the current year and for at least 183 days over a three-year window, weighted this way:

Current year: every day counts fully.
Prior year: each day counts as one-third of a day.
Two years prior: each day counts as one-sixth of a day.

Hit 183 on the weighted total and you are a U.S. tax resident for the year, eligible to own S corp shares.²

There is also a first-year election worth knowing about. Someone who does not yet meet the substantial presence test can elect to be treated as a U.S. resident for the current year if they were physically present for at least 31 consecutive days during that year and will satisfy the substantial presence test the following year. The election is made by attaching a statement to Form 1040 for the election year.³ For someone moving to the U.S., this can open the door to S corp ownership earlier than the day count alone suggests.

If none of these apply to you, you are a nonresident alien, and the S corporation is closed to you.

What Happens if a Nonresident Alien Ends Up on the Cap Table

This is the expensive scenario, and it comes up more often through inheritance, divorce, or a new investor than through intentional planning. The moment a nonresident alien acquires even one share of S corporation stock, the corporation stops qualifying as a small business corporation and the S election terminates automatically on that date.⁴ From that day forward the company is taxed as a C corporation, with corporate-level tax on its profits and a second layer of tax when it distributes them.

Removing the foreign shareholder later does not undo the damage. Federal law imposes a five-year waiting period after a termination before the corporation (or any successor) can make a new S election, unless the IRS consents to an earlier one.⁴

Asking the IRS for Inadvertent Termination Relief

If the ineligible shareholder situation was genuinely accidental, the corporation can ask the IRS to treat the S election as if it never terminated. Relief is available when the IRS determines the termination was inadvertent, the corporation corrected the problem within a reasonable time after discovering it, and the corporation and its shareholders agree to any adjustments the IRS requires for the intervening period.⁵

The company carries the burden of showing the event was not reasonably within its control and was not part of a plan to end the election. Relief usually comes through a private letter ruling, which costs money and takes time. It is still far better than sitting out as a C corporation for five years.

Structures That Do Work for Foreign Owners

Foreign entrepreneurs are not shut out of the U.S. market. Two structures accept foreign ownership with no restriction on who or how many.

C Corporation

A C corporation places no limits on who can hold shares. A foreign individual or a foreign entity can own 100% of a U.S. C corporation, serve on its board, and hold any officer position. There is no cap on the number of shareholders, and the corporation can issue multiple classes of stock.⁶ For a foreign owner who wants to raise outside capital or bring in additional investors over time, this is the most flexible choice.

Limited Liability Company

A U.S. LLC can also be entirely foreign-owned, as a single-member or multi-member entity. A foreign-owned LLC cannot elect S corporation tax treatment, because its owners don’t qualify, but it can elect to be taxed as a C corporation if that suits the owner. By default, a single-member LLC is a disregarded entity for tax purposes, and a multi-member LLC is treated as a partnership.

Tax Consequences Foreign Owners Should Plan For

The structure you pick drives how you and the company are taxed. The differences are large enough to warrant real planning before formation.

C Corporation: Flat Rate Plus Dividend Withholding

A C corporation pays federal income tax at a flat 21% rate on its profits. When those after-tax profits are distributed as dividends, the shareholders owe tax again. For a foreign shareholder, dividends from a U.S. corporation are subject to a 30% withholding tax at the source, taken by the company or its paying agent before the dividend reaches the shareholder.⁷

That 30% rate is often reduced by a tax treaty between the U.S. and the shareholder’s home country, sometimes to 15%, 10%, or 5% for substantial corporate shareholders. To claim a reduced treaty rate, the foreign shareholder must file Form W-8BEN with the withholding agent before any payments are made.⁸ Without that form on file, the full 30% applies regardless of any treaty you might otherwise rely on.

LLC: Pass-Through Plus Partnership Withholding

A multi-member LLC taxed as a partnership pays no federal income tax itself. Profits and losses flow through to the members. A foreign member who receives income effectively connected with a U.S. trade or business owes U.S. income tax on that income and needs an Individual Taxpayer Identification Number (ITIN) to file Form 1040-NR.⁹

The partnership also has its own withholding duty. A partnership with foreign partners must withhold tax on each foreign partner’s share of effectively connected income. For individual foreign partners, the withholding rate is the highest individual tax rate; for corporate foreign partners, it is the highest corporate rate (currently 21%).¹⁰ The withheld amount is a prepayment credited against what the foreign partner ultimately owes, but the cash is tied up until the return is processed.

The U.S. Estate Tax Trap

This one catches foreign owners cold. Stock in a U.S. corporation is a U.S.-situs asset for estate tax purposes. If a nonresident alien who owns shares in a U.S. company dies, those shares are subject to U.S. estate tax, and the filing threshold for nonresident aliens is just $60,000. That figure is not indexed for inflation.¹¹ U.S. citizens and residents get a multimillion-dollar exemption; a foreign investor with even a modest ownership stake in a U.S. C corp can leave heirs with a tax bill they never saw coming.

Reporting Obligations That Come With Foreign Ownership

Foreign-owned U.S. entities carry filings that domestic businesses do not, and the penalties for missing them are steep.

Form 5472

Any U.S. corporation that is at least 25% foreign-owned must file Form 5472 to report transactions between the corporation and its foreign owners. Since 2017, this requirement also reaches foreign-owned single-member LLCs treated as disregarded entities, which must file a pro forma Form 1120 with Form 5472 attached even though the LLC has no other income tax filing obligation.¹²

The penalty for failing to file (or filing with incomplete information) is $25,000 per return per year. If the failure continues more than 90 days after the IRS sends notice, another $25,000 accrues for each 30-day period the failure persists.¹³ The penalties apply even when the entity owes no income tax.

FIRPTA Withholding on Exit

When a foreign owner eventually sells an interest in a U.S. business that holds significant U.S. real property, FIRPTA requires the buyer to withhold 15% of the sale price and send it to the IRS.¹⁴ The withheld amount is credited against the seller’s actual tax, but a foreign seller who doesn’t plan for the upfront cash hit can see a deal fall apart.

Annual Returns

A foreign owner of a pass-through entity with effectively connected income files Form 1040-NR each year and needs an ITIN to do it. A foreign shareholder of a C corporation who receives only dividend income generally satisfies the U.S. tax obligation through withholding and may not need to file a return, though a Form W-8BEN on file with the withholding agent is still required to establish foreign status and claim any treaty benefits.⁸

1
Office of the Law Revision Counsel. 26 USC 1361 – S Corporation Defined
2
Internal Revenue Service. Substantial Presence Test
3
eCFR. 26 CFR 301.7701(b)-4 – Residency Time Periods
4
Office of the Law Revision Counsel. 26 USC 1362 – Election, Revocation, Termination
5
eCFR. 26 CFR 1.1362-4 – Inadvertent Terminations and Inadvertently Invalid Elections
6
International Trade Administration. Business Structure – An Overview of Common Business Structures for Foreign Investors
7
Office of the Law Revision Counsel. 26 USC 871 – Tax on Nonresident Alien Individuals
8
Internal Revenue Service. Instructions for Form W-8BEN
9
Internal Revenue Service. U.S. Taxpayer Identification Number Requirement
10
Office of the Law Revision Counsel. 26 USC 1446 – Withholding of Tax on Foreign Partners Share
11
Internal Revenue Service. Estate Tax for Nonresidents Not Citizens of the United States
12
Internal Revenue Service. Instructions for Form 5472
13
Office of the Law Revision Counsel. 26 USC 6038A – Information With Respect to Certain Foreign-Owned Corporations
14
Internal Revenue Service. FIRPTA Withholding