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Post-incorporation tax· US LLC (any state)

IRS Form 5472 for Foreign-Owned Single-Member LLCs

Non-resident owners of US LLCs must file Form 5472 every year, together with a pro-forma Form 1120. Missing the filing triggers a $25,000 per-form penalty — one of the harshest civil penalties in the US tax code.

Deadline: April 15Penalty: $25,000/formApplies to: non-resident owned LLCs
Filing deadline
April 15
Automatic 6-month extension via Form 7004
Late filing penalty
$25,000
Per form, per year — no cap on aggregate
Threshold to file
$1 minimum
Any reportable transaction triggers filing
Required with
Pro-forma 1120
Even if LLC has $0 income
§ 01The rule

Who must file

US LLCs owned 25% or more by a non-US person (individual or entity) are classified as reportable corporations under IRC §6038A. Even single-member LLCs, which default to disregarded-entity status, must file Form 5472 attached to a pro-forma Form 1120.

The filing is required even if the LLC has $0 revenue or no transactions — the mere existence of the ownership relationship triggers the requirement.

The rule comes from the Bipartisan Budget Act of 2015, effective for tax years beginning on or after January 1, 2017. Before that, single-member LLCs owned by foreigners were largely invisible to the IRS.

§ 02How to file

The mechanics

You cannot e-file Form 5472. It must be mailed or faxed to the IRS Ogden, UT service center. The filing package includes:

1. Form 1120 — pro-forma, showing only the LLC's name, address, EIN, and the phrase "Foreign-owned US DE" written across the top. All financial fields are left blank.

2. Form 5472 — one per foreign related party (25%+ direct or indirect owner). If the LLC transacts with the owner personally and with a foreign parent company, you file two Forms 5472.

3. Mailing address: Internal Revenue Service, 1973 Rulon White Blvd., M/S 6112, Attn: PIN Unit, Ogden, UT 84201.

§ 03Reportable transactions

What triggers a Form 5472 entry

Any transaction between the LLC and a foreign related party is reportable, including:

• Capital contributions from the owner (line 22, Part V)

• Loans between LLC and owner (both directions)

• Sales, purchases, rents, royalties, commissions

• Distributions and dividends

• Reimbursements of expenses

Even a $1 movement of funds between owner and LLC is reportable. There is no de minimis threshold.

§ 04What goes wrong

Common compliance failures

  • 01Filing Form 5472 without the pro-forma Form 1120 — the IRS treats this as a failure to file and issues the $25,000 penalty.
  • 02Assuming no filing needed because the LLC had $0 revenue — the transaction with the owner (capital contribution) is itself reportable.
  • 03Missing the extension window (Form 7004 must be filed by April 15 to extend to October 15).
  • 04Filing multiple related-party forms on a single Form 5472 — you need one per related party.
§ 05Long-tail questions

FAQ

Yes. The initial capital contribution from you (the owner) to the LLC is a reportable transaction. Even a bank-account funding wire triggers the requirement. File the pro-forma 1120 + Form 5472 with $0 in operational lines but the contribution amount in Part V, line 22.

§ 06Where to file

Jurisdictions this affects

Not legal or tax advice
This page summarizes public rules from IRS Instructions for Form 5472, Internal Revenue Code §6038A, and Treasury Regulations §1.6038A-1 through §1.6038A-7 as of July 2026. Deadlines, penalties, and forms change. Consult a licensed CPA or tax attorney in your jurisdiction before filing.