Pro Forma 1120 for Foreign-Owned LLCs: A Step-by-Step Walkthrough
Understand the pro forma 1120 and how it pairs with Form 5472 for foreign-owned single-member LLCs.
March 3, 2026
6 min read
Pro Forma 1120 for Foreign-Owned LLCs: A Step-by-Step Walkthrough
Form 5472 is incomplete without the pro forma Form 1120. This guide explains what it is, why it is required, and how to complete it with clean, consistent data.
Pro forma 1120
What the pro forma 1120 is
The pro forma 1120 is a cover sheet that connects your LLC to Form 5472. It does not report tax, but it is mandatory for foreign-owned single-member LLCs treated as disregarded entities.
What you need to complete it
Keep these items ready:
LLC legal name and address
EIN and tax year dates
Owner information
A reference to the attached Form 5472
A clean workflow
Confirm your LLC profile details.
Generate the pro forma 1120 using the same data source as Form 5472.
Attach Form 5472 and your Part V/VI statement.
File together by the due date (or extend with Form 7004).
How ForeignOwnedLLC helps
ForeignOwnedLLC generates the pro forma 1120 and Form 5472 together, keeping every field consistent. This avoids mismatched data and reduces the chance of IRS rejections.
If you want a clean, connected Form 5472 package every year, ForeignOwnedLLC keeps it simple.
