Form 5472 and the $25,000 Penalty: A Guide for Foreign-Owned US LLCs

There is a particular letter the IRS sends that ruins a founder’s month. It concerns a US LLC that made no money, had no customers and sat dormant for a year — and it assesses a penalty of $25,000.

The filing behind it is Form 5472, and it is the single most commonly missed obligation among non-resident owners of US LLCs. It is missed because it is genuinely counter-intuitive: the form is required even when the company owes no tax, earned nothing, and has no US customers. Owners reasonably conclude that a business with no income has nothing to file. That conclusion costs $25,000.

This guide explains why single-member LLCs are caught, what counts as a reportable transaction (a much wider net than most people expect), exactly how to file, and what to do if you have already missed a year.

The short answer

• If you are a non-US person owning 100% of a US LLC, you almost certainly must file Form 5472 attached to a pro forma Form 1120, every year.
• Zero income does not remove the obligation. Funding the LLC from your own pocket is itself a reportable transaction.
• The deadline is 15 April, extendable to 15 October with Form 7004.
• It cannot be e-filed. It goes by fax or post.
• The penalty is $25,000, and it repeats every 30 days once the IRS has notified you and 90 days have passed. There is no cap.

Why a “disregarded” entity has to file anything

A single-member LLC is, by default, a disregarded entity for US federal tax purposes. The IRS looks through it and treats its activity as belonging to the owner. That is what makes the structure attractive: no entity-level tax return, no corporate tax, income taxed once in the owner’s hands.

Historically that created a blind spot. A foreign person could own a US LLC that transacted freely with them, and because the entity was disregarded, no return recorded any of it. Regulations finalised in 2016 closed the gap. Since the 2017 tax year, a foreign-owned US disregarded entity is treated as a corporation for the limited purpose of the reporting requirements under section 6038A.

The consequence is a structure that confuses almost everyone: your LLC remains disregarded for calculating tax, but is treated as a corporation for the purpose of filing an information return. So it files a tax form while owing no tax. It is a reporting obligation, not a taxing one — and it is enforced with penalties that dwarf what most small LLCs earn.

Who has to file

“Foreign person” means a non-resident alien individual, a foreign company, a foreign partnership or trust, or a foreign estate. If you are not a US citizen, green card holder, or someone who meets the substantial presence test, you are a foreign person for these purposes.

Note the multi-member row. Adding a second member changes the entity’s classification to a partnership, which files Form 1065 and issues Schedules K-1 rather than filing Form 5472. That is a different regime with its own deadlines — not an escape route, and not something to do purely to avoid this form.

The trap: what counts as a reportable transaction

Technically, the obligation is triggered by having a reportable transaction with a related party during the year. Owners hear that and conclude a quiet year means no filing. The definition is far wider than “sales”.

For a foreign-owned disregarded entity, essentially any movement of value between the LLC and its owner, or another related party, is reportable. That includes:

• Money you put into the LLC — capital contributions of any size, including the initial funding
• Money you take out — distributions and owner draws
• Loans in either direction, and interest on them
• Amounts paid by you personally on the LLC’s behalf, such as a state filing fee or registered agent charge paid from your own card
• Sales, purchases, rents, royalties, commissions and service fees between you and the LLC
• The formation, acquisition or dissolution of the entity itself
• Transfers of property, or anything provided for less than full consideration

Read that list again with a “dormant” LLC in mind. If you paid the Wyoming annual report fee from your personal account, that is a reportable transaction. If you deposited $100 to keep the bank account open, that is a reportable transaction. If you formed the company during the year, the formation itself is reportable.

This is why practitioners generally advise foreign-owned single-member LLCs to file every year without trying to argue their way out. The cost of filing is trivial; the cost of a wrong call is $25,000.

A worked example

Bilal, who lives in Lahore, formed a New Mexico LLC in March to test a SaaS idea. He funded it with $500 from his personal account, paid $50 in state fees and $99 for a registered agent, then decided against the project. The LLC never launched, never invoiced anyone, and closed the year with no revenue.

Bilal has at least three reportable transactions: the formation of the entity, the $500 contribution, and the fees he paid personally on the LLC’s behalf. He must file Form 5472 with a pro forma Form 1120 by 15 April. He owes no tax. If he assumes an idle company has nothing to file and skips it, his exposure begins at $25,000.

How to file, step by step

1. Make sure the LLC has an EIN

Form 5472 cannot be processed without an Employer Identification Number for the LLC. This is the most common reason for a late first filing: owners discover in April that they need an EIN, and obtaining one as a non-resident takes time. You do not need an SSN or ITIN to get an EIN — non-residents apply on Form SS-4 by fax or phone. If you do not have one, start that process before anything else. We cover the mechanics in our guide to getting an EIN without an SSN.

2. Prepare a pro forma Form 1120

Your LLC does not file a normal corporate return. It files a stripped-down “pro forma” Form 1120 that exists purely as a cover sheet for Form 5472.

You complete only the identifying information at the top of page 1 — the entity’s name, address and EIN — and write “Foreign-owned U.S. DE” across the top of the form. You leave the income, deductions and tax computation sections blank. There is no balance sheet, no schedules, and no tax calculation.

3. Complete Form 5472

The form identifies the reporting entity, the related parties it transacted with, and the amounts involved. For a foreign-owned disregarded entity, the relevant part is the one dealing specifically with transactions between the DE and its foreign owner. Report each category of transaction with the amounts involved; where an exact figure is not determinable, the instructions allow a reasonable estimate.

A separate Form 5472 is required for each related party you transacted with. Most single-owner LLCs have exactly one — the owner — but a structure involving a foreign parent company and its subsidiaries can require several.

4. Send it by fax or post — not electronically

This filing is outside the normal e-file system. The IRS accepts it two ways:

• Fax (300 DPI or higher) to 855-887-7737
• Post to: Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201

Keep evidence of submission. A fax confirmation report, or proof of posting for an international mailing, is your only defence if the IRS later says nothing arrived. This matters more than it sounds: post from outside the US can take weeks, and the IRS does not acknowledge receipt of these filings.

Deadlines

The extension is automatic if requested on time, and it extends the filing date only — though since no tax is owed, that distinction rarely matters here. If your LLC has a non-calendar tax year, the deadline shifts to the fifteenth day of the fourth month after year end.

The record-keeping requirement

Filing the form is only half the obligation. Section 6038A also requires you to keep permanent books and records sufficient to establish the correctness of the reported transactions. The penalty provisions apply to failing to maintain records, not only to failing to file.

In practice, keep bank statements for the LLC, records of every transfer between you and the company, invoices and contracts with related parties, and your formation documents. A simple spreadsheet of owner contributions and distributions, maintained through the year, makes the April filing straightforward and gives you the evidence the rules require.

Penalties, and how they escalate

The penalty structure is unusually severe for an information return.

• $25,000 for failing to file on time, filing a substantially incomplete form, or failing to maintain records.
• A further $25,000 if the failure continues more than 90 days after the IRS notifies you.
• An additional $25,000 for each subsequent 30-day period, or part period, that the failure continues.

There is no statutory cap. The penalty applies per form, per year, so an owner who has missed three years with one related party is looking at $75,000 before any escalation. The amount bears no relationship to the size of the company, its revenue, or the tax at stake — which is nil.

Because these penalties are often assessed automatically when a return is filed late, they can arrive without warning and require you to argue your way back out.

If you have already missed a year

Do not ignore it, and do not wait for the IRS to make contact. Exposure grows with time, and the escalation clock is driven by IRS notification — filing before that notice arrives keeps you at the initial level rather than compounding.

The general approach is to file the missing years as soon as possible, each with its own pro forma Form 1120, and to attach a statement setting out reasonable cause: what happened, why the failure occurred despite ordinary business care, and what you have done to prevent recurrence. Penalties under section 6038A can be abated where reasonable cause is established.

Reasonable cause is a genuine standard, not a formality. “I did not know” is weak on its own; “I relied on a formation provider who told me no filing was required, and here is that correspondence” is considerably stronger. Because the sums are large and the arguments fact-specific, this is the point at which professional help pays for itself.

Common mistakes

• Assuming no income means no filing. The most expensive error in this article.
• Filing Form 5472 on its own. It must be attached to a pro forma Form 1120; sent alone it may not be processed.
• Trying to e-file. Software will often reject the pro forma return. Fax or post it.
• Omitting owner contributions. Money you put in is reportable, and it is the transaction most often left off.
• Leaving the EIN until April. Obtaining one as a non-resident is not instant.
• Keeping no proof of filing. Without a fax confirmation you cannot demonstrate you filed.
• Forgetting the year of dissolution. Closing the LLC is itself reportable, so a final filing is normally required.

How this fits with your other obligations

Form 5472 is an information return. It does not settle your income tax position, and filing it does not mean you have finished for the year.

If your LLC earns income effectively connected with a US trade or business, you may also need a personal return on Form 1040-NR. Separately, your state will want an annual report or franchise tax payment, and crossing a sales threshold in any state can trigger sales tax registration. A US LLC holding foreign bank accounts over $10,000 in aggregate can also have an FBAR obligation, since the LLC itself counts as a US person for that purpose.

One obligation that has come off the list: federal beneficial ownership reporting no longer applies to US-formed companies, following FinCEN’s rule change in August 2026. We explain what replaced it in our guide to BOI reporting in 2026. State filing costs and deadlines are set out in our state filing fee tables.

Reconstructing a year you did not track

Most owners facing a late filing have the same problem: they did not keep a related-party ledger because they did not know they needed one. The transactions still happened, and they can usually be rebuilt from records you already hold.

Start with the LLC’s bank statements for the year and mark every line that involves you personally rather than a customer or supplier — money in from your own accounts, transfers out to yourself, card payments you made on the company’s behalf. Those are your contributions and distributions.

Then check your personal statements for anything you paid for the company directly: state filing fees, registered agent renewals, software subscriptions bought in your own name. These are easy to overlook precisely because they never touched the business account.

Finally, add the structural events — formation, any change of ownership, dissolution. Group everything by category, total each one, and you have what the form asks for. Where a figure genuinely cannot be pinned down, the instructions permit a reasonable estimate, and a documented estimate is far better than an omission.

Your annual filing calendar at a glance

Keeping the ledger through the year is the whole game. Owners who record transfers as they occur spend perhaps an hour on this filing; owners who reconstruct twelve months from memory in April are the ones who miss transactions and file late.

Frequently asked questions

My LLC had absolutely no transactions. Do I still file?

Examine the year carefully before concluding that. State fees, registered agent charges, bank deposits and the formation itself are all reportable. A genuinely transaction-free year is rare, and most advisers file regardless given the penalty for getting it wrong.

Do I owe US tax because I file this?

No. Form 5472 reports information; it calculates nothing. Whether you owe tax depends on whether you have income effectively connected with a US trade or business, which is a separate question.

Can I file it myself?

Yes, and for a simple single-owner LLC with a handful of transactions it is manageable. The judgement calls are identifying every reportable transaction and valuing them correctly — which is where the penalty risk sits.

What if I add a second member?

The LLC becomes a partnership for tax purposes and files Form 1065 instead. That is a different and generally more involved regime — not a simplification, and not a reason on its own to restructure.

I closed my LLC. Do I still file?

Normally yes, for the year of dissolution, because the dissolution is itself a reportable transaction. Closing the company does not close out prior-year obligations either.

Does the IRS actually enforce this against small LLCs?

Yes. Penalties are frequently assessed automatically when a return is filed late, without a human weighing the size of the business first. Small dormant LLCs receive these notices regularly.

Getting it handled

Form 5472 is not difficult once the structure is clear. It is simply unforgiving — an obligation that arrives without a bill attached, applies to companies with no money, and punishes silence severely.

If you own a US LLC from abroad, put 15 April in your calendar now, keep a running record of every transfer between you and the company, and make sure your EIN is in place well ahead of the deadline. If you have missed a year, deal with it before the IRS raises it.

We prepare Form 5472 and pro forma 1120 filings for non-resident LLC owners, including catch-up filings for missed years. See our US tax filing service or get in touch to talk through your situation.

This article is general information, current as at September 2026, and is not tax advice. Remotix BPO is a business process outsourcing company and is not an accounting firm or a law firm. Your circumstances may differ — take advice on your own position before filing.