Foreign-Owned LLC Defensive Filing: When to File a Protective Form 1040-NR

The Filing Gray Zone

A foreign-owned single-member LLC that uses Stripe to process payments — under its own EIN, with no US employees, warehouse, or office — sits in a tax-filing gray zone. Two competing instincts pull in opposite directions.

The first instinct: file the LLC's Form 5472 plus a pro forma Form 1120 (information returns only), report zero income for the foreign owner personally, and pay no US tax. Concern: the IRS sees Stripe's 1099-K under the LLC's EIN reporting substantial gross receipts, with no matching income-tax filing.

The second instinct: file Form 5472, plus a Form 1040-NR for the foreign owner reporting all the LLC's net profit as effectively connected income (ECI), taxed at graduated rates. Concern: massive overpayment of US tax that the legal authorities don't actually require.

Neither extreme is the technically correct middle. The legitimate "belt-and-suspenders" position that the Treasury regulations actually authorize is a protective Form 1040-NR under Treas. Reg. §1.874-1. This article walks through the source rules for physical goods, the ETBUS test under IRC §864, when the protective return is appropriate, and how to file it.

Where the Source Rules for Physical Goods Actually Live

For physical goods sold by a foreign-owned LLC, source of income is determined by IRC §§861-863, not by customer location or payment instrument.

Produced inventory (post-TCJA §863(b)): When the goods are manufactured by the seller, the 2017 Tax Cuts and Jobs Act amended §863(b) so that the source is determined solely by the location of production activities. A foreign-owned LLC selling goods that it (or its supply chain) produces entirely outside the United States generates foreign-source income, even when the customer is in the United States. The IRS practice unit on source-of-income confirms this: post-TCJA, title passage and place of sale are no longer factors for produced inventory.

Purchased inventory (§§861(a)(6), 862(a)(6)): When the seller resells inventory it acquired from a third party, source is determined by where title passes — specifically, where the seller's rights, title, and risk of loss transfer to the buyer. Treasury Regulation §1.861-7(c) is the controlling regulation. The shipping terms (Incoterms — EXW, FCA, CIF, DDP, etc.), bill of lading, and risk-of-loss clauses in the sales agreement matter. The IRS will look at the actual economic substance of where title passes, with an anti-abuse caveat for arrangements structured primarily for tax avoidance.

What's notable in both rules: the customer's billing address, the issuing country of the credit card, and the customer's IP geolocation do not appear. Those signals don't determine source for physical goods.

The only situation where customer-location signals come into play is electronic transmission of copyrighted articles under Treasury Regulation §1.861-18 — and that special regulation exists precisely because the inventory rules don't apply to digital content. The contrast confirms the rule: physical-goods sales are governed by §§861-863 production and title-passage analysis, not by where the buyer happens to be when they enter their credit card.

The ETBUS Test: What an Examiner Actually Looks For

Whether the foreign owner is subject to US income tax at graduated rates depends on whether the LLC's activities cause the owner to be "engaged in a trade or business within the United States" (ETBUS) under IRC §864(b). The statute doesn't define the term comprehensively, and the determination is factual.

The Tax Court in YA Global Investments LP v. Commissioner (2023) and the IRS Chief Counsel Advice 201501013 both use the same framework: ETBUS requires US activities that are "considerable, continuous, and regular," with a profit motive. Ministerial or ancillary US activities don't count, citing Scottish American Investment Co.. Substantive US activities performed by dependent agents on behalf of the foreign principal can count, citing De Amodio, Lewenhaupt, and Adda.

The LB&I practice unit on gross ECI tells examiners to look for: US sales offices, US technical support personnel, a US office materially participating in sales, contract negotiation or execution in the United States, shipping terms showing title passage in the United States, and similar evidence of in-country commercial activity. It directs examiners to ask about US bank accounts as part of fact development, but does not suggest that a bank account or payment processor alone creates a US trade or business.

For a foreign-owned LLC with no US employees, no US warehouse, no US office, no US dependent agents, and no US-targeted advertising contracts — only a Stripe account processing payments under the LLC's EIN — the LB&I framework points strongly toward "not engaged in a US trade or business." Stripe is an unrelated US payment processor, not the seller's agent or sales office.

There is no published case or PLR holding that the use of a US payment processor alone creates US trade or business. The authorities that do find ETBUS involve US branches, US personnel, or dependent agents conducting the substantive selling activity in the United States.

The Protective Return Under Treasury Regulation §1.874-1

When a foreign taxpayer's analysis concludes that there is no US trade or business and no ECI for the year, Treasury Regulation §1.874-1 (for nonresident alien individuals) and Treasury Regulation §1.882-4 (for foreign corporations) authorize a specific filing mechanism that the regulations call a "protective return."

The protective return is filed to preserve the right to deductions if the IRS later concludes that some level of US trade or business existed. Without the protective filing, an IRS examiner who later finds ETBUS may disallow all ordinarily-allowable deductions and assess tax on gross receipts rather than net profit. The §1.874-1 protective return preserves the deduction position even when the taxpayer reports zero current ECI.

Mechanically, the foreign owner files Form 1040-NR with:

Identifying information (name, ITIN, address)
A statement indicating the return is filed protectively under Treas. Reg. §1.874-1
A summary of US-connected activities the taxpayer believes do not rise to ETBUS
Zero reported ECI
No US tax due

This is paired with the LLC's separately-filed Form 5472 plus pro forma Form 1120, which is required regardless under IRC §6038A.

A timely-filed protective Form 1040-NR also starts the IRC §6501 statute of limitations running (3-year default, 6-year under §6501(e) for substantial omissions). Without any 1040-NR filing, the SOL on US-tax assessment relating to the LLC may not run at all if the IRS later asserts an unfiled return obligation. The protective return therefore offers SOL benefits beyond the deduction preservation.

When Partial ECI Reporting Becomes Appropriate

There is a separate scenario where partial ECI reporting on Form 1040-NR is the correct approach: when the LLC has actual US trade or business and the question is how to allocate the resulting ECI between US-source and foreign-source items.

If the foreign owner has US employees, a US warehouse, a US sales office, or US dependent agents — the kind of facts that put ETBUS on the table — partial ECI reporting may be appropriate. The allocation follows IRC §§861-863 (production location or title-passage location), not customer payment data. Card BINs, billing addresses, and IP geolocation are transaction metadata, not source-of-income indicators.

The narrow exception is digital products under Treas. Reg. §1.861-18, where customer location is built into the source rule for copyrighted content. That's a different regulation for a different type of transaction.

For foreign-owned LLCs with no US presence — the typical Stripe + Mercury cross-border e-commerce profile — partial ECI reporting based on customer-attribution methodologies has no statutory grounding. The protective return is the appropriate filing for the "I want some audit-defense insurance" instinct.

What an Examiner Will Actually Challenge

The audit risk under each filing position is different.

Under the protective return position: the examiner's challenge is factual — does the "no US presence" story actually hold up? The examiner will request documentation about whether there are hidden US contractors closing sales, marketplace-facilitator inventory (e.g., Amazon FBA in US warehouses), title-passage terms that effectively place sales in the US, US returns or service centers, or any US-resident person performing substantive selling functions. If the facts support the no-ETBUS conclusion, the protective return survives examination.

Under a partial-ECI position based on customer payment data: the examiner's challenge is conceptual. They can argue that the customer-attribution methodology doesn't match the source rules under §§861-863, that some sales should be treated as foreign-source despite the customer being in the US (produced-outside-US inventory under §863(b)), and that the reporting amount has no basis in the inventory sourcing regulations.

Under the full ECI position: the examiner is unlikely to object — the taxpayer paid more tax than required. But the position is technically overstated when no US presence exists, and it complicates future-year analysis, treaty position consistency, and representations to other parties.

The Specific Recommendation for Foreign-Owned LLCs With No US Presence

For a foreign-owned single-member LLC with:

Production / fulfillment entirely outside the United States
No US employees, warehouse, office, or dependent agents
No US-targeted advertising contracts
US payment processor (Stripe, Square) processing some US-customer transactions
Modest US customer percentage (typically <20% of total revenue)

The appropriate filing is:

Form 5472 plus pro forma Form 1120 under IRC §6038A — required regardless of income tax position
Protective Form 1040-NR under Treas. Reg. §1.874-1 — if the foreign owner wants belt-and-suspenders protection on the deduction position in case the IRS later asserts ETBUS

The protective filing reports zero ECI, includes a statement of the position, and incurs no US tax. The Form 5472 information disclosure is what the regulations require for transparency about the foreign-owned domestic disregarded entity.

When Additional Facts Change the Analysis

The protective return position is correct on a specific fact pattern. Changes in facts that shift the conclusion:

Toward full ECI: US warehouse (including Amazon FBA), US employees or contractors closing or fulfilling sales, US-targeted advertising contracts with US-domiciled platforms, title-passage terms that place sales in the United States, dependent commission agents in the US, US sales office or technical support personnel.

Toward partial ECI with proper §§861-863 allocation: Mixed structure with some US-source inventory income and some foreign-source — for example, US-produced inventory sold globally, or purchased inventory with title-passage occurring in the US. In these cases, partial ECI reporting is appropriate, but the allocation is based on production location or title passage, not customer payment data.

Toward a treaty-based position: If the foreign owner is a tax resident of a country with a US tax treaty, the permanent-establishment analysis may provide a stronger or different basis for the no-tax position. Form 8833 disclosure may be required.

Key Takeaways

For physical goods sold by a foreign-owned LLC, source of income is governed by IRC §§861-863, not by customer billing address, card BIN, or IP geolocation
ETBUS under §864(b) requires "considerable, continuous, regular" US activities — offices, personnel, dependent agents — not just use of a US payment processor
The legitimate belt-and-suspenders filing is a protective Form 1040-NR under Treas. Reg. §1.874-1
Form 5472 plus pro forma Form 1120 is still required regardless under IRC §6038A
Partial ECI reporting is appropriate only when ETBUS actually exists, and even then the source allocation follows §§861-863, not customer data
Full ECI on all profit overstates the law when there is no US presence — overpaying tax is "safe" but not technically required
Facts that would shift the analysis: US inventory or fulfillment, US employees, US-targeted ad contracts, dependent commission agents, title-passage in the US

FAQs

Q: Does the protective return require an ITIN?

A: Yes. Form 1040-NR requires the filer's ITIN. If you don't have one, apply through a Certified Acceptance Agent (CAA) at least 3 months before the planned filing date. The CAA process takes 7-14 weeks.

Q: What's the IRC §6501 statute of limitations on a protective return?

A: A timely-filed protective Form 1040-NR starts the 3-year SOL running (extendable to 6 years under §6501(e) for substantial omissions). Without any 1040-NR filing, the SOL on US-tax assessment relating to the LLC may not run at all if the IRS later asserts an unfiled return obligation. The protective return therefore offers SOL benefits beyond the deduction preservation.

Q: Does this analysis change if my LLC sells digital goods or SaaS instead of physical products?

A: Yes, materially. Digital copyrighted articles fall under Treas. Reg. §1.861-18, which uses different source rules including the recipient's location for certain transactions. SaaS and other services have their own source analysis under §§861(a)(3), 862(a)(3), and §865(g). The "no-US-presence ⇒ no US tax" intuition often still holds but the supporting authority is different. Consult a CPA for digital-products-specific analysis.

Q: What does "considerable, continuous, regular" mean in practice?

A: Per IRS Chief Counsel Advice 201501013 and YA Global, the courts and IRS look for US activities that are sustained over time (not isolated transactions), happen with frequency (not one-off events), and rise above ministerial or back-office tasks (not just bank account management or recordkeeping). A US sales office staffed for 12 months easily meets the test; a US payment processor and an occasional US-IP order does not.

Q: Can my CPA file a full-ECI Form 1040-NR if they prefer the conservative position?

A: Yes — full ECI on all net profit is technically overstated when no US presence exists, but it is not a position that produces tax-underpayment penalty exposure (you've overpaid, not underpaid). If your CPA prefers full ECI as a conservative default, a discussion of the protective-return alternative may be worthwhile, but neither position causes immediate compliance trouble. The cost is the extra US tax paid versus what the regulations require.

Nonresident return flow (Form 1040-NR)