Form 5472 Filing Checklist - What You Need Before You Start

Filing Form 5472 + Pro Forma 1120 for a foreign-owned US single-member LLC is more straightforward when you gather the documents and data points first. This checklist walks through everything needed to file correctly, organized by category.

What You Need to Know First

Before starting Form 5472 preparation, gather: LLC formation documents, EIN assignment letter, foreign owner identification details, complete bank statements for the tax year, list of reportable transactions, and the dedicated Ogden mailing address. Filing requires Form 5472 + Pro Forma 1120 mailed or faxed (no e-filing). Deadline is April 15 (October 15 with Form 7004 extension). Penalty for non-filing is $25,000 per year per LLC under IRC §6038A(d)(1).

Section 1: LLC Identification Documents

Before you start, have these documents in front of you:

1.1 Articles of Organization (or Certificate of Formation)

The state-level formation document showing:

• LLC's exact legal name
• Formation state and date
• Registered agent name and address

These are typically downloaded from the formation service (Stripe Atlas, Doola, Firstbase, Northwest) or directly from the state's Secretary of State website.

1.2 EIN Assignment Letter (CP575)

The IRS-issued letter showing:

• LLC's EIN (9 digits, format XX-XXXXXXX)
• LLC's name and address as on file with the IRS
• Issue date

If you don't have the CP575, it can be reissued by calling the IRS Business and Specialty Tax Line at 800-829-4933 (international callers: 267-941-1099).

1.3 Operating Agreement

Internal LLC document confirming:

• Single-member status (this is what makes it a disregarded entity)
• The foreign owner's identity
• The LLC's principal business activity

Most formation services provide an operating agreement template at formation.

1.4 LLC's Business Address Information

For Form 5472 Part I and Pro Forma 1120 name/address block:

• Principal business address (typically the registered agent's address or Mercury/Brex address)
• City, state, ZIP

Section 2: Foreign Owner Identification

2.1 Foreign Owner's Full Legal Name

Match exactly to the foreign owner's passport or national ID.

2.2 Foreign Owner's Address

Complete foreign address including city, province/state, country, and postal code.

2.3 Foreign Taxpayer Identification Number (FTIN)

The foreign owner's tax ID from their country of residence:

• India: PAN
• Pakistan: NTN or CNIC-linked tax ID
• UAE: TRN (if applicable)
• UK: UTR
• Canada: SIN
• Australia: TFN
• Singapore: NRIC or FIN

2.4 US Identifying Number (if any)

ITIN or SSN if the foreign owner has one. If not, leave blank and assign a Reference ID Number (e.g., "FRP-001-LLCNAME") for Line 2b(1).

2.5 Country of Citizenship and Residence

Both, if different. Most foreign owners are citizens and residents of the same country.

Section 3: Reportable Transactions Data

3.1 Bank Statements

Complete bank statements for the LLC's full tax year, showing all transactions. For most foreign-owned LLCs, this is Mercury, Brex, Wise Business, or similar.

3.2 Capital Contribution Records

Each instance of the foreign owner sending money to the LLC:

• Date of transfer
• Amount in USD
• Purpose (formation funding, operations, capital injection)

3.3 Distribution Records

Each instance of the LLC sending money to the foreign owner:

• Date of distribution
• Amount in USD
• Method of transfer (wire, Wise, etc.)

3.4 Loan Records (If Any)

Loans between the foreign owner and the LLC, in either direction:

• Loan date and original principal
• Interest rate and terms
• Payments made during the year
• Outstanding balance at year-end

3.5 Other Related-Party Transaction Records (If Any)

• Payments for services between the LLC and foreign related parties
• Sales or purchases of goods between the LLC and foreign related parties
• Rent or royalty payments between the LLC and foreign related parties
• Any other monetary or non-monetary transactions involving foreign related parties

3.6 Other Foreign Related Parties (If Any)

For multi-tier or multi-entity structures, identify each foreign related party:

• Name and address of each foreign entity
• Country of incorporation
• FTIN of each entity
• Transactions between each entity and the US LLC

Section 4: Year-End Data

4.1 Total Assets at Year-End

For Form 5472 Line 1c and Pro Forma 1120 Box D. This is typically:

• Cash on hand at year-end
• Plus any other assets (inventory, equipment, accounts receivable)

For most foreign-owned LLCs, this is the bank balance at December 31.

4.2 Principal Business Activity Description

Brief description for Form 5472 Line 1d:

• "Software development services"
• "E-commerce sales of [products]"
• "Marketing consulting services"
• "Online publishing"

4.3 NAICS Code

For Form 5472 Line 1e. Common codes:

• 541511 - Custom computer programming services
• 541613 - Marketing consulting services
• 454110 - Electronic shopping (e-commerce)
• 519130 - Internet publishing/broadcasting
• 519290 - Web search portals/hosting

4.4 Country Where Business Is Conducted

For Form 5472 Line 1m. Often the foreign owner's country plus the US, or just the foreign owner's country if business is delivered remotely.

Section 5: Filing Method Items

5.1 Mailing Address Verification

The dedicated address for foreign-owned single-member LLC returns:

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

Or fax to 855-887-7737.

5.2 Certified Mail Service

Plan to use USPS Certified Mail with Return Receipt Requested (or equivalent international tracking service if mailing from outside the US). The receipt is your only proof of submission.

5.3 Fax Confirmation Plan (If Faxing)

If using fax, plan for:

• Functioning fax machine or online fax service
• Confirmation page printout for proof of transmission
• Fax cover sheet identifying the LLC, EIN, and tax year

Section 6: Form Preparation

6.1 Current Form 5472

Download the current revision (Form 5472 Rev. December 2023 or later) from IRS.gov/Form5472.

6.2 Current Pro Forma 1120

Download the current Form 1120 from IRS.gov/Form1120. For Pro Forma 1120 use, only specific fields are completed; most income, deduction, and tax lines are blank.

6.3 Form 7004 (If Filing Extension)

If filing an extension, download Form 7004 from IRS.gov/Form7004. Form 7004 must be filed by April 15.

6.4 Form 5472 Instructions

Reference the Instructions for Form 5472 (Rev. December 2024 or current revision) at IRS.gov/Form5472. Especially relevant: the special filing instructions for foreign-owned U.S. DEs.

Section 7: Reasonable Cause Statement (For Late Filings)

7.1 Reasonable Cause Letter Draft

For voluntary catch-up filings or post-notice cases, prepare a written reasonable cause statement covering:

• LLC name, EIN, and tax years at issue
• Description of the foreign owner's situation
• Why the failure occurred (typically: unaware of the requirement)
• Why the failure persisted across multiple years (for multi-year cases)
• Prompt action upon discovery
• Request for abatement under IRC §6664(c)

The structure is detailed in Reasonable Cause Letter for Late Form 5472.

7.2 Supporting Documentation for Reasonable Cause

For the abatement package:

• LLC formation documents (showing formation through a service that did not disclose the requirement)
• Documentation of when the requirement was discovered
• Any correspondence with formation services that does not mention Form 5472

7.3 Form 843 (For Notice Cases)

If responding to a CP15 or CP215 notice, prepare Form 843 in addition to the reasonable cause statement. Form 843 is the procedural vehicle for abatement of an assessed penalty. Mechanics covered in Form 843 for Form 5472 Penalty Abatement.

Section 8: Final Pre-Filing Review

Before mailing, verify:

• "Foreign-owned U.S. DE" written across the top of Pro Forma 1120
• LLC name and EIN match across Form 5472 and Pro Forma 1120
• Foreign owner's name and FTIN correct on Form 5472 Part II
• All reportable transactions listed in Form 5472 Part V
• Pro Forma 1120 income/deduction/tax lines blank
• Pro Forma 1120 signed and dated
• Total assets match between Form 5472 Line 1c and Pro Forma 1120 Box D
• Mailing address correct (Rulon White Blvd, NOT a standard 1120 P.O. Box)
• Certified mail return receipt purchased and attached
• Complete copies kept for your records

What this means for your filing

Use this checklist before starting any Form 5472 preparation. The most common errors (wrong address, missing transactions, incomplete identification) are avoidable with careful preparation.

For automated preparation that handles these items consistently, filetax.co generates the complete packet for $150 in under 15 minutes. Multi-year cases or complex transactions benefit from CPA review.

For new filers, see What to Do Right Now. For multi-year cases, see Filed 5472 Multiple Years Late. For the field-by-field walkthrough, see Form 5472 Field by Field. For Pro Forma 1120 fields, see Pro Forma 1120 Every Field.

The IRS's official Form 5472 page is at IRS.gov/Form5472.

Frequently Asked Questions

How long does it take to gather everything on this checklist?

For a current-year filing with well-organized records, 1-3 hours. For a multi-year catch-up case requiring reconstruction of historical bank statements, 4-8 hours per year. Front-loading the data gathering speeds the form preparation significantly.

What if I can't find some of these documents?

For LLC formation documents, check your formation service's dashboard or request from the state Secretary of State. For the EIN letter, call the IRS Business and Specialty Tax Line. For old bank statements, request from the bank (most provide downloadable statements for several years back).

Do I need professional help to use this checklist?

For straightforward single-related-party cases, no. The checklist is designed for self-preparation. For complex cases (multi-year, multi-related-party, ECI questions, post-notice), the checklist still applies but the form preparation benefits from CPA review.

What if I realize a reportable transaction is missing after I file?

File an amended Form 5472 marked "Amended" at the top. Mail the amended return to the same Ogden address with a brief cover note explaining the correction.

Can I use this checklist for an LLC that was formed mid-year?

Yes. The checklist applies to any tax year. For a partial-year LLC, gather documents and transactions covering the period from formation to year-end (or dissolution).

Do I need to file Form 5472 if I'm just gathering this checklist for next year?

Forward planning is appropriate. If you have the LLC and it has had reportable transactions, you have a current obligation. Use the checklist to prepare and file by April 15 (or extend with Form 7004).

Disclaimer: This article provides general information about US tax filing requirements for foreign-owned single-member LLCs. It does not constitute legal or tax advice. FileTax.co is a software platform for generating IRS forms based on user inputs. It is not a law firm and does not provide legal or tax advice. Forms are generated according to the official IRS Instructions for Form 5472 (Rev. December 2024). For advice on your specific situation, consult a qualified tax professional.

Related pages

Continue reading

• Top Mistakes on Form 5472 - What Foreign LLC Owners Get Wrong →

  Foreign founders preparing Form 5472 themselves often make the same mistakes. This guide covers the top errors that trigger penalties or rejection.

• Form 5472 vs Form 5471 - Which One Do You Actually File? →

  Foreign founders sometimes confuse Form 5472 with Form 5471. They are completely different forms for opposite directions of cross-border ownership.

• Form 5472 Field by Field - Every Line Explained for Foreign LLC Owners →

  Form 5472 has nine parts and dozens of fields. Most do not apply to foreign-owned single-member LLCs. This guide walks through every part with what to enter.