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Last updated September 5, 2026
No, a foreign individual usually does not need an ITIN solely to file Form 5472 for a wholly owned U.S. single-member LLC. The LLC needs its own EIN, while the foreign owner can generally provide a foreign taxpayer identification number and, when no U.S. identifying number exists, a consistently used reference ID.
If the LLC already has an EIN, start your Form 5472 filing without waiting for an unnecessary personal identifier.
Which tax ID belongs to the LLC?
The LLC uses an Employer Identification Number. An EIN is a nine-digit business tax identifier assigned by the IRS. Form 5472 and the attached pro forma Form 1120 identify the reporting LLC with that EIN.
International applicants who cannot use the online EIN application can apply by telephone, fax, or mail under the IRS Form SS-4 instructions. Those instructions permit “foreign” or “N/A” on line 7b when the responsible party lacks and is ineligible for an SSN or ITIN.
Which tax ID belongs to the foreign owner?
The foreign owner’s section can contain several identifiers:
| Identifier | Who it identifies | Form 5472 role |
|---|---|---|
| EIN | The U.S. LLC | Required reporting-entity identifier |
| ITIN or SSN | Foreign owner, if already issued | U.S. identifying number |
| FTIN | Foreign owner | Foreign-country taxpayer number, if any |
| Reference ID | Foreign owner or related party | Filer-created identifier when required |
The IRS Instructions for Form 5472 say a foreign-owned U.S. disregarded entity must enter an FTIN, if any, for each listed foreign owner. If no FTIN exists, the instructions permit “None” or “N/A” in the FTIN box.
When might the owner need an ITIN anyway?
An ITIN can be necessary for a separate federal tax purpose, such as filing an individual U.S. tax return when the person is not eligible for an SSN. The IRS describes an ITIN as a tax-processing number for people who need a U.S. taxpayer identification number for federal tax purposes but cannot obtain an SSN; see the official ITIN page.
Form 5472 filing alone does not answer whether the owner has effectively connected income, U.S.-source income, withholding, real-estate income, or another individual filing obligation. Those facts may change the ITIN analysis.
What is the Form5472 Prep identifier check?
Before filing, confirm four items:
- The legal LLC name matches the EIN notice.
- The LLC EIN is entered consistently on both forms.
- The owner’s FTIN matches foreign tax records, if one exists.
- The same reference ID is used for the same owner every year.
A reference ID is created by the filer; the IRS does not issue or preapprove it. It must be alphanumeric, contain no spaces or special characters, and remain consistent from year to year.
How does Form5472 Prep help?
Form5472 Prep’s guided intake separates LLC identifiers from owner identifiers and produces the Form 5472 plus pro forma Form 1120. The $149 Standard plan includes accountant review, IRS fax delivery, and a timestamped delivery receipt, ready in 5-7 business days; Express is the same filing in 3 business days for $199.
Start the filing. If the LLC still needs an EIN, use the site’s EIN service before preparing Form 5472.
Frequently asked questions
Can I file Form 5472 with no SSN?
Yes. A foreign owner can often file without an SSN. The LLC uses its EIN, while the owner information can use an FTIN and reference ID under the IRS instructions.
Can I file Form 5472 with no ITIN?
Usually yes when Form 5472 is the only issue. A separate U.S. individual tax obligation may still require an ITIN.
Does the LLC need an EIN if it has no employees?
Yes for the Form 5472 package. The EIN identifies the LLC on Form 5472 and the pro forma Form 1120 even when the LLC has no employees.
Can I invent a different reference ID every year?
No. The IRS instructions require the same reference ID to be used consistently for the same foreign owner or related party.
The bottom line
Do not confuse the LLC’s EIN with the owner’s ITIN. Form 5472 requires the LLC EIN, but the foreign owner usually does not need an ITIN solely for this filing. Prepare the accountant-reviewed filing for $149.
Educational content only; not tax or legal advice.