Guides·8 min read

US Tax Filing for Non-Resident-Owned Companies: What You Owe

SE
StableCorp Editorial
·Updated June 20, 2026

If you own a US company from outside the country, you almost certainly have an annual federal filing obligation — even if the company earned $0. A foreign-owned single-member LLC must file Form 5472 with a pro forma Form 1120 every year regardless of activity, and a C-Corp files Form 1120. What you actually *owe* in tax depends on whether your income is effectively connected to the US, but the *filing* is rarely optional. This is general information, not tax advice — confirm your specific facts with a cross-border CPA.

Foreign-owned single-member LLC: file Form 5472 + pro forma 1120 every year — even with $0 income. Missing it is a $25,000 penalty per form.

Foreign-owned C-Corp: file Form 1120 annually; US federal corporate tax is 21% on profits, plus a possible second layer on dividends.

The $0-activity trap: 'no revenue' does not mean 'no filing.' The 5472 requirement is triggered by ownership and reportable transactions, not by profit.

Form 5472 is due April 15 (calendar-year filers), can be extended 6 months via Form 7004, and cannot be e-filed — it must be faxed or mailed.

Indian founders: relief from double taxation runs through the India–US DTAA and a foreign tax credit claimed on Form 67.

Who actually has to file a US return?

Almost every non-resident-owned US entity files something annually — the form just depends on the structure.

The mistake foreign founders make is assuming that "the LLC made no money" means "there's nothing to file." That is wrong, and it's an expensive kind of wrong. The IRS treats a foreign-owned single-member LLC as a reportable entity by virtue of who owns it, not by what it earned.

Here is the annual filing map by the three structures StableCorp forms most often.

Annual US federal filing by entity type (foreign owner)
StructurePrimary federal filingDue even at $0 activity?Headline tax
Foreign-owned single-member LLCForm 5472 + pro forma Form 1120YesPass-through; tax depends on owner's US-connected income
Delaware C-CorpForm 1120Yes (file even if no profit)21% federal on profits + possible dividend layer
Foreign corporation with US incomeForm 1120-FIf engaged in US trade/businessTax on effectively connected income

A C-Corp is a separate taxpayer, so it files Form 1120 and pays the flat 21% federal rate on its profits — with a possible second layer of tax when it distributes dividends. A foreign corporation that is engaged in a US trade or business files Form 1120-F on its effectively connected income. The single-member LLC is the one that surprises people, so it gets its own section below.

What is the $0-activity trap for foreign-owned LLCs?

A foreign-owned single-member LLC must file Form 5472 with a pro forma Form 1120 every single year — even if it had zero revenue, zero customers, and zero dollars in the bank.

Since 2017, the IRS treats these LLCs as "reportable corporations" for information-reporting purposes. The trigger is a *reportable transaction* with a related party — and forming the company, funding it, paying its registered agent, or lending it money all count. In practice, almost every foreign-owned LLC has at least one reportable transaction in its first year, which means almost every one of them must file.

The penalty for missing or botching Form 5472 is $25,000 per form, per year — and it applies whether or not the LLC owed any tax. This is the single most under-appreciated number for foreign founders, and it's the reason "we'll deal with taxes once we have revenue" is dangerous advice.

No income does not mean no filing. The 5472 obligation is about ownership and related-party transactions, not profit.

Three operational details that trip people up, straight from the IRS instructions for Form 5472:

Due date: April 15 for calendar-year filers (the 15th day of the 4th month after year-end).

Extension: file Form 7004 for an automatic 6-month extension of the pro forma 1120 — do this before the deadline.

Delivery: Form 5472 cannot be e-filed. It must be faxed or mailed to the IRS, which catches first-timers expecting an online submission.

If reading "fax the IRS by April 15 or lose $25,000" makes you nervous, that's the correct reaction. This is exactly the kind of recurring compliance StableCorp builds into the entities it forms — see pricing for what ongoing upkeep costs.

Does a C-Corp owe US tax if it kept profits in the company?

Yes. A C-Corp is a separate US taxpayer and owes 21% federal corporate income tax on its profits whether or not it distributes them to you.

Retaining earnings inside the company defers the *second* layer of tax — the one on dividends — but not the corporate-level 21%. The corporation files Form 1120 by the 15th day of the 4th month after its tax year (April 15 for calendar-year filers), and it files even in a loss year.

This two-layer structure is why StableCorp's default guidance is a Wyoming LLC for solo and bootstrapped founders, and a Delaware C-Corp for the VC-track. If you're not raising priced equity yet, the C-Corp's double layer of tax and heavier filing load is often friction you don't need — we walk through the trade-off in our LLC vs C-Corp guide.

Are there filings beyond the income tax return?

Yes — two federal obligations beyond the income tax return catch foreign owners off guard, plus your state's annual upkeep.

BOI / Corporate Transparency Act

As of June 2026, FinCEN's March 2025 interim final rule exempts US-formed entities and US persons from beneficial ownership information (BOI) reporting; only foreign reporting companies file. The rule is interim, litigation is ongoing, and a final rule is pending — so verify the current position at fincen.gov/boi before you rely on it. If you are caught by it, penalties run roughly $591/day in civil fines, with criminal exposure up to $10,000 and two years.

BEA investment survey (BE-13)

When a foreign person establishes or acquires a US business, the Bureau of Economic Analysis BE-13 survey is mandatory and is generally due within 45 days of the transaction. It's an economic-statistics filing, not a tax form, and it carries no tax — but it's a legal requirement that almost no formation guide mentions, which is exactly why it gets missed.

State annual upkeep

Separate from federal taxes, your state of formation wants its annual report and fee. A Wyoming LLC's annual report is $60 minimum (roughly $299–$399 all-in once you add a registered agent and basic compliance). A Delaware C-Corp pays franchise tax starting around $400 on the assumed-par-value minimum plus a $50 annual report, landing most founders at ~$800–$1,500 all-in. We break the full numbers down in our cost-to-run guide.

If I'm an Indian founder, do I get taxed twice?

Not if you use the treaty. The India–US Double Taxation Avoidance Agreement (DTAA) lets you claim a foreign tax credit in India for US tax already paid, which you report on Form 67.

The mechanics: US tax is assessed first on US-source income, then India taxes your global income but gives you credit for that US tax via Form 67, filed before your Indian return. The net effect is that you generally pay the *higher* of the two rates once — not both stacked. Getting the credit requires clean records of what was paid where, which is its own argument for keeping a tidy paper trail.

The differentiated insight: your off-ramp paper trail is part of your filing story

Here's the part most tax checklists skip: how you move money out of the company is a compliance event, not just a banking one.

If your US entity pays you or your Indian contractors in USDC, the moment that stablecoin is converted to INR is where a regulator looks for a purpose code and a clean trail. The DIY, direct-wallet path — swapping USDC to INR through a personal exchange account — is the genuine grey area, and it's the version that makes Form 67 credits and FEMA reporting messy after the fact.

StableCorp's off-ramp is the compliant alternative: USDC settles to INR against supported RBI purpose codes (P0802, P1004, P1005, P1006, P1007, P1009, others on request), producing the documented trail your CPA needs for the foreign tax credit. That's the link between your payout method and your tax filing that no formation blog draws.

And because it's built for incorporated clients, the economics are different from the market default. StableCorp charges 0.5% to off-ramp for clients incorporated with us and 1.5% to on-ramp, 1% for a direct off-ramp to INR, and 1% on payroll for freelancers and contractors (sometimes volume-negotiated). Compare that to the market's roughly 2.9% headline plus around 2% hidden FX markup — close to 5% effective — and the compliant path is also the cheaper one. See pricing for the full breakdown.

The annual filing checklist

1.

Confirm your structure (single-member LLC, C-Corp, or foreign corp with US income) — it dictates the form.

2.

If a foreign-owned single-member LLC: file Form 5472 + pro forma 1120, even at $0. Fax or mail it by April 15; extend with Form 7004 if needed.

3.

If a C-Corp: file Form 1120 and pay 21% on profits, even in a loss year.

4.

Check BOI status at fincen.gov/boi and file the BEA BE-13 within 45 days of forming if it applies.

5.

Pay your state annual report and franchise tax.

6.

Indian founders: claim the DTAA foreign tax credit on Form 67, backed by a clean off-ramp paper trail.

The filing map isn't complicated once you see it — it's just unforgiving about the $0-activity trap and the $25,000 penalty behind it. StableCorp forms the entity, files the SS-4 and the recurring returns, and gives you a compliant USDC-to-INR off-ramp so the money side and the tax side tell the same story. This article is general information and not tax or legal advice; confirm time-sensitive items (BOI, state fees) against the primary sources before you file.

Sources

IRS — Instructions for Form 5472 — https://www.irs.gov/instructions/i5472

IRS — About Form 1120 — https://www.irs.gov/forms-pubs/about-form-1120

IRS — About Form 1120-F (foreign corporation) — https://www.irs.gov/forms-pubs/about-form-1120-f

IRS — Instructions for Form 1120 — https://www.irs.gov/instructions/i1120

FinCEN — Beneficial Ownership Information — https://www.fincen.gov/boi

BEA — Form BE-13 Survey of New Foreign Direct Investment — https://www.bea.gov/surveys/be13

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US Tax Filing for Non-Resident-Owned Companies | StableCorp