If you own a Wyoming LLC as a non-resident and you are the only member, the United States treats your company as if it does not exist for income-tax purposes. That sounds like freedom from paperwork, but it is the opposite. Because the entity is "disregarded," the IRS cannot see your transactions through a normal tax return, so it imposes a separate information-reporting duty. That duty is satisfied by Form 5472, and Form 5472 cannot be filed on its own. It rides on top of a stripped-down, identification-only Form 1120 known as the pro forma 1120. This guide walks through exactly what the pro forma cover is, why it exists, how to complete every meaningful field, and the specific errors that turn a routine filing into a $25,000 problem.
What "pro forma" actually means here
A pro forma 1120 is a real Form 1120, the standard US corporate income-tax return, used in an unusual way. You are not computing corporate tax, you are not a corporation, and you do not owe anything on this form. The 1120 functions purely as an envelope that carries identifying information about your LLC so the IRS can attach the accompanying Form 5472 to the correct entity. The phrase "pro forma" signals that the return is filed for form's sake, not to report income or calculate a liability.
This distinction matters because the two documents do completely different jobs. The 1120 cover answers "who is filing and what entity is this," while the attached Form 5472 answers "what money moved between this entity and its foreign owner." The cover is mostly blank. The 5472 carries the substance. Together they form a single, complete information return for a foreign-owned disregarded entity.
It is worth internalizing that nothing on the pro forma 1120 creates a tax. A non-resident with a disregarded single-member LLC is taxed in the US only on income effectively connected with a US trade or business and on US-source FDAP income. Whether you owe US tax is determined entirely separately, on a personal return if at all, never on this corporate cover. The pro forma 1120 is administrative plumbing, not a tax computation.
Who must file, and who is exempt from this exact process
This filing applies to a specific population: a single-member LLC that is foreign-owned and treated as a disregarded entity. "Foreign-owned" means the sole member (or a 25%-or-greater owner) is a non-US person, whether an individual or a foreign company. If that describes you and you have not elected corporate taxation, you are squarely inside the Section 6038A reporting regime and you file Form 5472 on a pro forma 1120 each year.
Several situations fall outside this exact mechanic, and confusing them is a common source of wasted effort:
- Multi-member foreign-owned LLCs default to partnership treatment. They do not file a pro forma 1120. They file Form 1065 with Schedule K-1s, due March 15, and may trigger Section 1446 withholding and Form 8805 if there is effectively connected income.
- LLCs that elected C-corporation treatment via Form 8832 file a real, complete Form 1120 (computing actual tax), plus Form 5472 if foreign-owned. That is a genuine corporate return, not a cover.
- US-person-owned single-member LLCs are disregarded but report on the owner's personal return (Schedule C or similar). They have no Form 5472 obligation absent a foreign related party.
If you are a non-resident with one owner and the default classification, you are in the right place. The remainder of this guide assumes that profile.
Why an LLC files a corporate form at all
The apparent contradiction, an LLC that is not a corporation filing a corporate return, has a clean historical explanation. Form 5472 was built decades ago to police transfer pricing and related-party dealings of foreign-owned US corporations. It was always a corporate attachment. When the Treasury extended Section 6038A reporting to foreign-owned disregarded entities through regulations effective for tax years beginning on or after January 1, 2017, it needed a vehicle to carry the 5472 for entities that file no income return of their own.
Rather than invent a new standalone form, the IRS reused the existing 1120 as a minimal cover. Treasury Regulation 301.7701-3 establishes that the single-member LLC is disregarded; the 2017 regulations under 1.6038A then treat that disregarded entity as if it were a domestic corporation, but only for the limited purpose of these reporting and record-keeping rules. The pro forma 1120 is the bridge that makes the existing 5472 machinery work for entities that otherwise would never touch a 1120.
The practical upshot is that you should think of the 1120 here as a label, not a return. You complete the header, mark the entity correctly, and leave the income-statement and tax-computation portions empty. The substance lives entirely in the attached 5472.
Filling out the pro forma 1120 field by field
The goal is a cover that identifies the entity precisely and computes nothing. Complete only the identification fields; leave income, deduction, and tax lines blank or at zero. The fields that matter:
| Field | What to enter |
|---|---|
| Entity name | The LLC's legal name, matching the Articles of Organization exactly |
| Address | Typically the Wyoming registered-agent address on file |
| EIN | The LLC's nine-digit EIN (format 98-XXXXXXX is common for foreign-applied numbers) |
| Date incorporated | The Wyoming Secretary of State formation date |
| Tax year | The calendar year being reported (most non-residents use the calendar year) |
| Top-of-form notation | Write "Foreign-owned U.S. DE" across the top, per the current Form 5472 instructions |
| Total assets | Many owners enter the actual year-end total assets; some enter $0 if truly nil |
| Income/deduction/tax lines | Leave blank or $0 - the form is not computing tax |
The single most important affirmative action is the top-of-form notation. The current Form 5472 instructions direct foreign-owned disregarded entities to write "Foreign-owned U.S. DE" at the top of the 1120. This is what tells the IRS to route the package correctly and not treat it as a delinquent or zero corporate return. Always confirm the exact wording against the instructions for the year you are filing, because the IRS occasionally adjusts notation language.
Resist the urge to write "N/A" across every line. The correct posture is: identification fields completed in full, amount fields either blank or $0. Scattering "N/A" everywhere can confuse processing and looks like an attempt to dodge the schedule rather than report a true zero. A clean cover has a complete header and quiet amount lines.
The Form 5472 that rides along
The 5472 is where the real information lives, so a guide to the cover would be incomplete without explaining what it carries. The 5472 reports "reportable transactions" between the LLC (the reporting corporation) and its foreign related party, which for most non-residents is the owner. The header of the 5472 repeats the LLC's identifying details and then describes the foreign owner: name, address, country of citizenship or organization, and country of tax residence.
For a disregarded entity, the transactions captured are broader than people expect. Part IV of the 5472 covers monetary transactions with the related party, but for foreign-owned DEs the rules also reach contributions to and distributions from the entity, amounts paid to the owner, amounts received from the owner, and similar flows. In plain terms: money you put into the LLC, money you take out, and money that passes between you and the company are the events the form is designed to capture.
A few practical notes shape what you report. Transactions are reported in US dollars; if your books are in another currency, convert using a reasonable, consistent method. You must maintain records sufficient to establish the accuracy of the form, which is a substantive obligation under 6038A, not an afterthought. And the reportable-transaction concept is deliberately wide for disregarded entities, so when in doubt about whether an owner-to-LLC movement counts, the safer assumption is that it does.
A worked example with real numbers
Consider a founder, Amara, based in Lagos, who forms a Wyoming consulting LLC on March 10, 2025, and obtains EIN 98-7654321. During 2025 she funds the company with three capital contributions totaling $6,500, takes two owner draws totaling $4,200, and pays $300 from the LLC account to renew a software subscription billed by a US vendor (not a related party). All consulting services are performed by Amara from Lagos for clients abroad.
Her pro forma 1120 cover, for the 2025 tax year, shows her LLC's exact legal name, the EIN 98-7654321, her Wyoming registered-agent address, the March 10, 2025 formation date, and the notation "Foreign-owned U.S. DE" across the top. The income and tax lines are blank or $0, because the cover computes nothing. The $300 software payment to an unrelated vendor never appears anywhere on this filing, because it is not a related-party transaction.
The attached Form 5472 then reports the related-party flows: $6,500 in contributions from the foreign owner to the entity and $4,200 in distributions from the entity to the foreign owner. These are the events that matter for 6038A. Together, the cover plus the 5472 constitute Amara's complete federal information filing for 2025. There is no Schedule C, no Form 1065, and no tax due on the cover. Whether Amara owes any US tax personally is a separate question answered by her facts (services performed entirely outside the US are generally foreign-source), and it is not resolved on this paperwork.
Notice what the example teaches: the dollars that appear on the 5472 are owner-to-entity and entity-to-owner movements, not the LLC's ordinary business expenses. Many first-time filers wrongly try to list vendor payments or revenue. The 5472 is about the relationship between you and your company, not about your company's operations.
Filing mechanics: how it physically reaches the IRS
This package cannot be e-filed. Foreign-owned single-member disregarded LLCs must submit the pro forma 1120 with Form 5472 attached by mail or by fax to the dedicated IRS unit that processes these filings (the Ogden, Utah service center handles them). The steps are mechanical:
- Prepare the pro forma 1120 cover with identification fields complete and the "Foreign-owned U.S. DE" notation at the top.
- Prepare Form 5472 with the LLC and owner details and all reportable transactions.
- Physically attach the 5472 to the 1120 so they travel as one package.
- Send by mail to the current Ogden address, or fax to the number in the current Form 5472 instructions.
- Keep complete copies, plus your supporting records, indefinitely.
Faxing has a practical advantage: it produces a transmission confirmation that timestamps your submission, which is useful evidence if the IRS ever questions timeliness. Mailing works too, and many filers use a method with delivery tracking for the same reason. Either way, the address and fax number can change between years, so verify them against the instructions for the specific filing year rather than reusing last year's details from memory.
Deadlines and how to get more time
The pro forma 1120 with attached 5472 is due by the 15th day of the fourth month after the close of the tax year. For a calendar-year LLC, that is April 15. The deadline is the corporate-style date that attaches to the 1120 cover, not the personal April date you might associate with individual returns, though for calendar-year filers they coincide.
You can extend the due date by filing Form 7004 before the original deadline, which generally grants an additional six months, pushing a calendar-year filing to October 15. The extension is for filing the information return, not for any payment, but since the pro forma 1120 carries no tax, the extension is purely about buying time to assemble accurate transaction records. File the 7004 the same way you would expect, in advance of April 15, and keep proof.
A useful discipline: treat the extension as a planning tool, not a rescue. The $25,000 penalty for a late or incomplete 5472 is steep enough that you want the filing done well within the window. If your records are not ready by early April, file the 7004 deliberately rather than scrambling, and use the extra months to reconstruct contributions and distributions cleanly.
The $25,000 penalty and why this filing is not optional
Section 6038A imposes a penalty of $25,000 for each failure to file Form 5472 on time and complete, and an additional $25,000 for continued failure after the IRS notifies you. The penalty is per form, per year, and it is not scaled to the size of your business. A dormant LLC with two small owner transactions faces the same headline exposure as an active one. This is why a one-page identification cover deserves real attention: the cost of getting it wrong is wildly out of proportion to the effort of getting it right.
The penalty attaches to the 5472 obligation, and a defective cover can undermine the whole package. If the 1120 is not marked "Foreign-owned U.S. DE," if the name does not match the Articles of Organization, or if the 5472 is missing entirely, the IRS may treat the filing as not properly made. The practical defense is straightforward: file on time, complete every identification field, attach both pages, and keep the records that substantiate the transactions you reported.
There is also a quieter reason to file even when activity is minimal. A timely, complete information return starts the assessment clock and documents your good-faith compliance. Filing a $0 or low-activity return creates a paper trail that protects you, whereas filing nothing leaves the door open indefinitely.
What counts as "no activity," and should you still file
A frequent question is whether an LLC with no business yet still has to file. The honest answer has two layers. Technically, the 5472 obligation is triggered by reportable transactions with a related party. If there were genuinely none, not even a capital contribution to open a bank account, no draws, no owner reimbursements, then strictly speaking there may be nothing to report for that year.
In practice, "no activity" is rarer than people think, because the events that count are owner-to-entity movements, not sales. The cash you wired in to fund the company is a contribution. The transfer you took back out is a distribution. A reimbursement you paid yourself is a transaction. Many "dormant" LLCs actually had several reportable flows in their first year simply from being capitalized and tested.
Given the asymmetry of the penalty, the prudent default for most owners is to file a low-activity or $0 information return anyway. It documents compliance, starts the clock, and removes the judgment call about whether some small movement was reportable. The downside of filing when you arguably did not need to is essentially zero; the downside of not filing when you should have is $25,000.
Common mistakes that void or weaken the filing
The errors that cause trouble are predictable, and nearly all of them are avoidable with a checklist:
- Skipping the "Foreign-owned U.S. DE" notation at the top of the 1120, so the IRS does not route or recognize the package correctly.
- Name mismatch, where the 1120 name differs even slightly from the Articles of Organization (abbreviations, dropped "LLC," punctuation).
- Filing one page without the other, either a lonely 1120 or a 5472 with no cover; both are incomplete.
- Attempting to e-file, which is not permitted for this filing and may leave you unfiled while you believe you are done.
- "N/A" carpet-bombing the form instead of completing identification fields and leaving amount fields blank or $0.
- Reporting business expenses or revenue on the 5472 instead of owner-to-entity and entity-to-owner transactions.
- Missing contributions and distributions because they were viewed as "just funding" rather than reportable flows.
- Reusing last year's IRS address or fax number without checking the current instructions.
Edge cases deserve a word too. If you elected C-corp treatment with Form 8832, you leave this regime entirely and file a real, computed 1120 plus 5472. If a second member joins mid-year, your classification can shift toward partnership treatment and a different return, so changes in ownership should prompt a fresh look at which form applies. And if the same foreign owner controls multiple disregarded LLCs, each entity files its own pro forma 1120 with its own 5472; the obligation is per entity, not per person.
The pro forma 1120 is a small document with large consequences, and almost all of the risk is procedural rather than substantive. Get the header right, attach the 5472, mark "Foreign-owned U.S. DE," file by April 15 (or extend with Form 7004), and keep your records, and the $25,000 penalty becomes a non-issue.
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