For foreign-owned US single-member LLCs
Form 1120 for a Disregarded Entity (Foreign Owner)
A US LLC owned by a single non-US person is a "disregarded entity" — meaning the IRS treats it as if it doesn't exist for income tax purposes. So why does it file Form 1120? Because Treasury Regulation § 1.6038A-1 requires Form 5472 to be attached to a tax return, and a pro forma Form 1120 is the IRS-specified attachment vehicle. This is the complete explanation, the regulation's history, what the filing looks like, and how to avoid the common pitfalls.
File in 15 minutes.
We generate, you sign, we fax to the IRS.
See pricing- Filled IRS Form 5472 + pro forma 1120
- Reasonable cause statement (if late)
- Reviewed by a qualified tax accountant
- Faxed to IRS Ogden PIN Unit
- 100% money-back if we fail to submit
No subscription. Pay once per filing.
15 min
average completion
IRS forms
filled, not redrawn
Faxed for you
to Ogden PIN Unit
Receipt stored
proof of filing
What is a disregarded entity?#
Why a disregarded entity files Form 1120#
What is the regulatory history of Form 5472?#
What does the pro forma 1120 look like?#
What 'solely for purposes of' means in practice#
Where do you file Form 5472 and pro forma 1120?#
What if you elect C-corp taxation?#
What if you elect S-corp taxation?#
What are common confusions about these forms?#
Skip the paperwork — 15-minute filing#
Pricing
Flat-rate Form 5472 filing.
One-time fee per filing. No subscription. IRS fax delivery to the Ogden PIN Unit is included on every plan.
Standard
Prepared in 3-5 business days
$199/ filing
- ✓Reviewed by a qualified tax accountant before submission
- ✓Form 5472 + pro forma 1120 prepared
- ✓Fax filing to IRS Ogden included
- ✓Filing confirmation
- ✓Reasonable-cause letter (for late filings)
- ✓Email support
+ $149 per additional year·Saves you from the $25,000-per-form IRS penalty
Frequently asked questions
- How do I know if my LLC is a disregarded entity?
- If your LLC has one owner and you've never filed Form 8832 to elect C-corp or S-corp taxation, it's a disregarded entity by default. Check your IRS correspondence — none of it should reference 1120-S or formal C-corp status.
- What if my LLC has more than one owner?
- If a US LLC has multiple owners, it's a partnership by default — not a disregarded entity. Multi-member LLCs file Form 1065, not 1120, and the Form 5472 rules apply differently. Our service handles single-member only.
- Does the disregarded entity have to file a US tax return?
- The disregarded entity doesn't compute its own income tax (it's disregarded for tax computation), but it must file pro forma Form 1120 + Form 5472 as an information return if it had any reportable transactions. So yes, there's still a filing — just not a real tax-paying one.
- Does the §6038A regulation cover foreign owners or all owners?
- It covers any 25%+ foreign ownership of a US corporation OR foreign ownership of a US disregarded single-member LLC. US-owned single-member LLCs are NOT subject to §6038A reporting — only foreign-owned ones since 2017.
- Can I file Form 5472 without pro forma 1120 if I qualify some exception?
- No. There's no exception that allows standalone Form 5472 filing for foreign-owned DEs. The pro forma 1120 attachment is mandatory.
- What's the difference between a disregarded entity and a partnership?
- Disregarded entity = single-owner LLC, treated as if it doesn't exist for income tax. Partnership = multi-owner LLC, files Form 1065 to allocate income to partners. Adding a second member changes the classification.
- If I add a partner to my disregarded LLC, what happens?
- It becomes a partnership for tax purposes (no longer disregarded). You'd file Form 1065 instead of pro forma 1120 + Form 5472. The change is automatic — no election needed. Talk to a CPA before adding members; the tax implications are significant.
- Are LLCs the only disregarded entities?
- No. Other entities can be disregarded too (qualified subchapter S subsidiaries, certain grantor trusts), but for foreign-owner purposes the typical disregarded entity is a single-member LLC.
- Does my LLC need a separate EIN if it's disregarded?
- Yes. Even though it's disregarded for income tax, it still needs an EIN to open bank accounts, file Form 5472, hire contractors with 1099 reporting, etc. The EIN is required for the entity even when the entity is disregarded.
- If I'm disregarded, can I just put my LLC's income on my personal return?
- For US owners, yes — they'd file Schedule C on Form 1040. For non-US owners, the LLC's income flows to you, but you don't file a US personal return unless you have US-source income personally. Most foreign owners don't, and the only US filing they make is the pro forma 1120 + Form 5472 for the LLC.
Related guides
Pro Forma Form 1120 — Plain-English Guide
Foreign-owned US single-member LLCs file pro forma Form 1120 as the procedural envelope for Form 5472. "Pro forma" means most of the form stays blank — you only fill in entity identification fields and stamp "Foreign-Owned U.S. DE" at the top. This guide shows exactly which fields to fill, which to leave empty, why the form even exists in this format, and how to assemble the full package the IRS expects.
Form 1120 for Foreign-Owned LLCs
If you are a non-US person who owns a US single-member LLC, you must file Form 1120 — but in a special "pro forma" version where almost every field stays blank. The 1120 exists only as an envelope for Form 5472 (the form that actually matters). This is exactly how it works, what to fill in, what to leave empty, how to assemble the full package, and why filing 1120 doesn't subject your LLC to US corporate income tax.
Form 5472 vs Form 1120 — What's the Difference?
Form 5472 and Form 1120 are two separate IRS forms that foreign-owned US LLCs must file together as one package. Form 1120 is the US corporate income tax return. Form 5472 is an information return about related-party transactions. For most foreign-owned single-member LLCs, the 1120 is filed "pro forma" — meaning most boxes are blank. Here's exactly what each form is, why you need both, and how the IRS expects them combined.
Single-member LLC with a foreign owner — what you actually have to file
If you are a non-US person who owns a single-member US LLC (Wyoming, Delaware, New Mexico, Florida, Nevada, or any state), you have one critical annual federal filing the IRS imposes on you: Form 5472 attached to a pro forma Form 1120. Miss it and the IRS charges $25,000 per year, per form — automatically, with no warning. This is the complete guide to what you owe, when, what your LLC actually pays (often nothing), and how to file it in 15 minutes.