Filing A US Business Taxes as a Non-Resident Owner in 2026: Form 5472, 1120, and Penalties Explained

Forming a US LLC or corporation is one of the most popular moves for entrepreneurs outside the United States. A US entity unlocks access to Stripe, PayPal, Amazon, US banking rails, and a level of credibility that’s hard to replicate anywhere else. What most non-resident owners don’t realize until it’s too late is that owning a US business — even one with zero income, zero US customers, and zero US tax owed — triggers a mandatory federal information-reporting requirement. Skip it, and the IRS can assess a $25,000 penalty per form, per year, with no statutory cap.

This guide walks through what non-resident owners of US LLCs and corporations actually have to file in 2026: Form 5472, the pro forma or full Form 1120, the EIN application process, and the penalty structure that makes this one of the highest-stakes compliance obligations in the entire US tax code. We’ll cover who’s required to file, what “reportable transactions” means, the step-by-step filing process, the most common (and costly) mistakes, and where to get help.

This is educational content, not professional advice. Tax outcomes depend on your specific ownership structure, treaty position, and business activity — always confirm your situation with a qualified professional before you file or skip a filing.

Who Should Read This

This guide is written for non-US-person owners of US business entities, regardless of where you live or what visa (if any) you hold. You should keep reading if you are:

• A non-resident alien who formed a single-member LLC in Wyoming, Delaware, New Mexico, or another US state to run an online business, e-commerce store, SaaS product, or consulting practice
• A foreign national on an F-1, H-1B, L-1, O-1, or TN visa who also owns a separate US LLC or corporation outside their employment
• A foreign investor who owns 25% or more of a US C-corporation, including startups that raised capital from US or international investors
• A digital nomad or remote entrepreneur living abroad who formed a US entity purely to access US payment processors and banking
• A foreign parent company that set up a US subsidiary or branch to sell into the US market
• A former US resident (green card holder or visa holder) who has since moved abroad but retained ownership of a US LLC or corporation
• An accountant, bookkeeper, or registered agent service provider researching filing obligations on behalf of foreign clients

If any of these describe you, the Form 5472 and Form 1120 filing requirement likely applies to your business — even if the entity has never generated revenue.

Quick Answer: Do Non-Resident Business Owners Have to File US Taxes?

Yes. Any US LLC or corporation that is at least 25% foreign-owned and has had a “reportable transaction” with its foreign owner or another related party during the tax year must file Form 5472 attached to a pro forma Form 1120 (for disregarded entities) or a regular Form 1120 (for corporations), even if the business owes zero US income tax. The deadline is generally April 15 for calendar-year LLCs (June 15 for foreign corporations with no US office, both extendable via Form 7004). Filing must be done by mail or fax with a valid EIN — Form 5472 currently cannot be e-filed as a standalone attachment by most foreign-owned disregarded entities. Missing this filing triggers a $25,000 penalty per form, per year, with additional $25,000 penalties for every 30 days the failure continues after IRS notice. This obligation is separate from any state-level franchise tax or annual report filing your LLC’s home state may also require.

Top 6 Filing Options for Non-Resident Business Owners

If you’re not confident preparing Form 5472 and Form 1120 yourself, here are established options non-resident owners commonly use. Fees and features change, so verify current pricing directly with each provider before committing.

1. doola — A formation-and-compliance platform built specifically for non-US founders running US LLCs. Doola bundles EIN acquisition, registered agent service, bookkeeping, and Form 5472/1120 filing into subscription tiers, which appeals to founders who want one dashboard instead of juggling separate vendors. Standout feature: guided onboarding designed around the foreign-owner use case from day one, though pricing runs higher than a standalone CPA for very simple, low-activity entities.

2. 1-800Accountant — A US-wide virtual accounting firm offering dedicated small-business tax packages that include EIN setup and Form 5472/1120 preparation for foreign-owned entities. Requirements are minimal — proof of entity formation and beneficial ownership documentation. Standout feature: bundled bookkeeping and a named accountant contact, useful for owners who also need ongoing monthly reconciliation, not just annual filing.

3. Greenback Expat Tax Services — Originally built for US citizens abroad, Greenback has expanded into foreign-owned entity compliance, including Form 5472 preparation for non-resident LLC owners. Eligibility is open to any foreign owner with a formed US entity and EIN. Standout feature: flat-fee pricing published upfront rather than hourly billing, which reduces surprise costs on a straightforward reportable-transactions year.

4. Online Taxman — A boutique international tax firm focused specifically on cross-border and foreign-owned business filings, including Form 5472, Form 1120, and related information returns like Form 5471 for owners with other foreign entities in their structure. Standout feature: staffed by CPAs and Enrolled Agents who specialize in non-resident and dual-structure cases, useful if your ownership chain is more complex than a single LLC.

5. Protax Consulting Services — A New York–based firm with decades of experience in nonresident alien and foreign-owned entity taxation, including Form 5472, ITIN applications, and treaty-based positions. Fees run toward the higher end of this list, reflecting a more consultative, advice-driven engagement rather than pure form preparation. Standout feature: strong fit for owners who also need broader nonresident alien tax planning (rental income, capital gains, treaty elections) alongside the entity filing.

6. A local CPA or Enrolled Agent specializing in international tax — For owners with straightforward single-member LLCs and a handful of reportable transactions, an independent CPA or EA who lists Form 5472/international information returns as a specialty can be the most cost-effective route. Eligibility and fees vary by practitioner; ask specifically about Form 5472 experience, since general small-business CPAs sometimes aren’t familiar with this niche filing.

Understanding the Legal and Regulatory Mechanics

Who Counts as a “Foreign Person” and What Makes an Entity “Foreign-Owned”

The Form 5472 regime applies to two categories of US entities: a 25%-foreign-owned US corporation, and a foreign-owned US disregarded entity (most commonly a single-member LLC that hasn’t elected corporate tax treatment). Since tax years beginning on or after January 1, 2017, Treasury Regulations under Section 1.6038A-1 treat a foreign-owned disregarded entity as a domestic corporation solely for purposes of this reporting requirement, even though it remains “disregarded” for income tax purposes.

A “foreign person” includes any individual who is neither a US citizen nor a US tax resident, any foreign partnership or corporation, any foreign trust or estate, and any foreign government. Notably, a nonresident spouse who elects to be treated as a US resident under IRC Section 6013(g) or (h) is not considered a “foreign person” for this purpose. The 25% ownership threshold is measured by vote or value, whichever is higher, and can be met directly or through attribution rules that look through certain trusts, partnerships, and related entities.

What Counts as a “Reportable Transaction”

This is where many owners get caught off guard. A reportable transaction is not limited to invoiced sales or loan repayments. It includes capital contributions made to fund the LLC, distributions or payments back to the foreign owner, loans between the owner and the entity (with imputed interest rules potentially applying), and even certain non-monetary benefits — for example, letting the entity use your personal laptop, home office, or other property without charge can be treated as a reportable transaction requiring disclosure. The filing trigger is the transaction, not the entity’s profitability. A dormant LLC that received a single capital contribution to cover state filing fees still has a reportable transaction and still must file.

Form 5472 and the Pro Forma Form 1120

Form 5472, officially the “Information Return of a 25% Foreign-Owned US Corporation or a Foreign Corporation Engaged in a US Trade or Business,” does not calculate any tax on its own. For a foreign-owned disregarded entity, it must be attached to a pro forma Form 1120 — a US Corporation Income Tax Return used only as a transmittal cover sheet, with the entity’s name, address, and EIN filled in and most income/deduction lines left blank or marked as not applicable, since the entity remains disregarded for actual income tax purposes. For a 25%-foreign-owned US corporation that isn’t disregarded, Form 5472 attaches to the corporation’s regular, fully completed Form 1120, and any US-source income is taxed at standard corporate rates.

The EIN Requirement and Why It Can’t Be Skipped

Every reporting entity needs an Employer Identification Number before Form 5472 can be filed — there is no workaround. Foreign owners without a US Social Security Number or ITIN can still obtain an EIN, but the fully automated online IRS application isn’t available to them; instead, the application (Form SS-4) generally must be submitted by fax, mail, or phone through the IRS’s international applicant line, with “Foreign” written on the responsible-party SSN/ITIN field. Processing by mail or fax commonly takes several weeks, so this step should be started well before any filing deadline.

The Penalty Structure: How $25,000 Can Multiply

The base penalty under IRC Section 6038A(d)(1) for failing to file a required Form 5472, or for filing a substantially incomplete one, is $25,000 per form, per year. If the failure continues for more than 90 days after the IRS mails a notice of the failure, an additional $25,000 penalty applies, and it can be assessed again for each further 30-day period (or part of one) that the failure continues — with no statutory maximum cap. This differs from some other international information returns, such as Form 5471, which carries a capped penalty structure. Separately, if the pro forma or regular Form 1120 itself is filed late and any tax is owed, standard late-filing penalties apply on top of the Section 6038A exposure, though for a purely disregarded entity with no US tax liability this secondary penalty is usually not in play — the Form 5472 penalty is the dominant risk.

Step-by-Step: How to File Form 5472 and Form 1120 as a Non-Resident Owner

1. Confirm your entity type and ownership percentage. Determine whether your LLC is a single-member disregarded entity or has elected corporate taxation, and confirm that a foreign person owns 25% or more of it, directly or through attribution.
2. Apply for an EIN if you don’t already have one. Complete Form SS-4 and submit it by fax, mail, or the IRS international phone line, since the fully online application generally isn’t available to applicants without an SSN or ITIN. Budget several weeks for processing.
3. Identify every reportable transaction for the tax year. Review capital contributions, owner distributions, intercompany loans, payments for services, and any non-monetary benefits (like free use of personal property) between the entity and its foreign owner or other related parties.
4. Gather supporting documentation. Bank statements, formation documents, capital contribution records, and any loan agreements should be organized and retained — the recordkeeping requirement under Section 6038A is a standalone obligation independent of the filing itself.
5. Complete Form 5472 with the entity’s information, the related party’s information, and the dollar value of each reportable transaction category.
6. Prepare the pro forma Form 1120 (for a disregarded entity) or the full Form 1120 (for a corporation with US-source income), attaching Form 5472 as directed by the form instructions.
7. Determine your filing deadline. Calendar-year filers generally face an April 15 deadline; foreign corporations with no US office or place of business generally have until June 15. Confirm the current-year deadline against the official Form 1120 instructions, since deadlines can shift slightly with holidays and weekends.
8. File Form 7004 for an extension if needed. This typically pushes the deadline to October 15 (or December 15 for the June 15 category), but an extension of time to file is not an extension of time to pay any tax that may be owed.
9. Submit the return by the method the current form instructions specify — historically this has meant mail or fax rather than standard e-file for many foreign-owned disregarded entities, so check the latest instructions each filing season, since IRS electronic filing options for this population have been evolving.
10. Keep copies of everything filed, plus proof of mailing or transmission, for at least the statute of limitations period — and note that the statute of limitations on the underlying tax return does not begin to run until a substantially complete Form 5472 has been filed, which is one more reason not to skip or rush it.

Costly Mistakes to Avoid

• Assuming no income means no filing obligation. The IRS explicitly ties this requirement to reportable transactions, not profitability — a dormant, zero-revenue LLC with a single funding transaction still owes a Form 5472 filing.
• Forgetting the pro forma Form 1120 entirely. Filing Form 5472 alone without the required cover return is treated as an incomplete filing, which can still expose the entity to the full $25,000 penalty.
• Using the owner’s personal SSN or ITIN in place of the entity’s EIN, or trying to operate without ever obtaining an EIN — both create filing rejections and delay the process past the deadline.
• Failing to capture non-monetary reportable transactions, such as personal funds used to pay entity expenses, or free use of the owner’s property, which are easy to overlook but still reportable.
• Missing the 90-day cure window after an IRS notice. Once the IRS has notified the entity of a failure, penalties can escalate every 30 days — treating that notice as low-priority is one of the most expensive mistakes an owner can make.
• Ignoring state-level obligations while focused only on federal filing. Many states require an annual report or franchise tax filing separate from Form 5472/1120, and lapsing on those can lead to administrative dissolution of the LLC itself.
• Waiting until the deadline to start the EIN application. Because mail/fax EIN processing for foreign applicants can take weeks, starting late is one of the most common reasons owners miss the April 15 (or June 15) filing date altogether.

Alternatives for Readers Who Don’t Fit the Standard Path

• If your entity had zero reportable transactions in the year (rare, but possible for a fully dormant shell with no contributions, withdrawals, or related-party activity), confirm with a professional whether a filing is still advisable as a protective measure, since the definition of “reportable transaction” is broad and easy to trip inadvertently.
• If you missed a prior year’s Form 5472 entirely, look into IRS penalty abatement options, including reasonable-cause relief and any applicable delinquent international information return submission procedures, rather than assuming the penalty is unavoidable once assessed.
• If your structure involves a foreign corporation owning other foreign entities that in turn own the US LLC, you may also have Form 5471 or other international information return obligations layered on top of Form 5472 — this is a case where a specialist international tax preparer is strongly advisable rather than optional.
• If you’re a nonresident alien with US-source personal income (not routed through the entity), such as US rental property or US-source investment income, you may separately need to file Form 1040-NR — a different filing from the entity-level Form 5472/1120 obligation covered in this guide.
• If ongoing US compliance costs outweigh the entity’s purpose, formally dissolving the LLC (rather than letting it go administratively inactive) can stop future filing obligations from accruing, though the final-year Form 5472 filing is still typically required for the year of dissolution.

Frequently Asked Questions

Do I have to file Form 5472 if my LLC made no money?

Yes, if there was any reportable transaction, such as a capital contribution to open the LLC or a bank account, or any payment between you and the entity. The filing trigger is the transaction, not income or profitability, so a zero-revenue LLC is not automatically exempt.

What happens if I don’t file Form 5472 on time?

The IRS can assess a $25,000 penalty per form, per year, with no statutory cap. If the failure continues more than 90 days after an IRS notice, an additional $25,000 can apply for each further 30-day period, so delays compound quickly.

Can I e-file Form 5472 as a foreign-owned single-member LLC?

Filing methods for foreign-owned disregarded entities have historically required mail or fax rather than standard e-file in many cases, though IRS electronic filing options have been evolving. Always check the current-year form instructions before assuming e-file is available to your entity type.

Do I need an ITIN to file Form 5472?

Not for the entity’s own Form 5472 filing — the entity needs an EIN, not the owner an ITIN. However, you may separately need an ITIN if you personally file a Form 1040-NR for US-source personal income outside the business.

When is the Form 5472 and Form 1120 deadline in 2026?

Calendar-year filers generally face an April 15 deadline, with an automatic extension to October 15 available via Form 7004. Foreign corporations with no US office generally have until June 15, extendable to December 15. Always confirm the exact current-year date against the official IRS instructions.

Does a single-member LLC owned by a non-resident pay US income tax?

Not automatically. A foreign-owned disregarded entity with no US-source income and no US trade or business generally has no US income tax liability, but it still must satisfy the Form 5472/pro forma Form 1120 information-reporting requirement regardless of tax owed.

What counts as a reportable transaction on Form 5472?

Reportable transactions include capital contributions, distributions, loans and imputed interest between the entity and its foreign owner, payments for services or goods with related parties, and certain non-monetary benefits like uncompensated use of the owner’s personal property by the business.

Can I get an EIN without a Social Security Number as a non-resident?

Yes. Foreign applicants without an SSN or ITIN can still obtain an EIN by submitting Form SS-4 via fax, mail, or the IRS’s international applicant phone line, writing “Foreign” on the responsible-party identification field, though this route takes longer than the automated online application.

Is Form 5472 the same as Form 5471?

No. Form 5472 reports transactions of a foreign-owned US entity (corporation or disregarded entity), while Form 5471 reports US persons’ ownership interests in foreign corporations. Some ownership structures require both, particularly multi-layered international holding structures.

Can penalties for a missed Form 5472 be reduced or waived?

In some cases, yes. Reasonable-cause relief and certain delinquent international information return submission procedures can potentially reduce or eliminate penalties for a late or missed filing, but eligibility depends heavily on the specific facts, so professional guidance is strongly recommended before responding to any IRS notice.

Conclusion

Owning a US LLC or corporation as a non-resident comes with a federal information-reporting obligation that has nothing to do with whether the business turns a profit. Form 5472, filed alongside a pro forma or full Form 1120, is mandatory for any 25%-or-more foreign-owned US entity with a reportable transaction during the year — and the $25,000-per-form, uncapped penalty structure makes this one of the least forgiving corners of the US tax code for a first-time mistake. The practical next steps are straightforward: confirm your ownership percentage and entity classification, secure an EIN if you don’t already have one, inventory every transaction between you and the entity for the year, and file by the applicable deadline or request an extension through Form 7004. Given the stakes, most non-resident owners are well served by working with a CPA, Enrolled Agent, or tax attorney experienced in foreign-owned entity filings rather than navigating this alone.

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