Learn Form 5472 filing deadlines, extension procedures, and how to avoid $25,000 penalties. Complete guide for foreign-owned LLCs in 2025.

Understanding Form 5472 filing deadlines is critical for foreign-owned LLC owners. Missing these dates triggers automatic $25,000 penalties with no maximum cap. We'll show you exactly when your Form 5472 is due, how to request an extension, and the safest way to stay compliant in 2025.
The Form 5472 filing deadline depends on your business structure and tax year. Here's exactly when your form is due:
According to IRS Form 5472 instructions, the filing deadline matches your Form 1120 deadline. For foreign-owned single-member LLCs, this means filing Form 5472 with a pro forma Form 1120 by April 15 for calendar-year filers.
Form 5472 penalties are among the most severe in US tax law. Unlike many IRS penalties with maximum caps, Form 5472 penalties can accumulate indefinitely.
The IRS penalty structure works in two phases:
If you have multiple related parties requiring separate Form 5472 filings, each form carries its own $25,000 penalty.
Beyond the financial penalties, late or missing Form 5472 filings trigger serious complications:
Our Federal Tax Filing service ensures your Form 5472 is filed correctly and on time, protecting you from these costly consequences.
The good news: Getting a 6-month extension is automatic and straightforward. You don't need IRS approval.
Extension to FILE ≠ Extension to PAY
This is the most misunderstood aspect of Form 7004. According to IRS guidelines, the extension only gives you more time to file your forms - it does NOT extend the payment deadline for any taxes owed.
For foreign-owned single-member LLCs (disregarded entities) with no US-source income, this typically doesn't create issues since there's usually no tax due. However, interest and penalties still accrue on any unpaid taxes from the original deadline.
Foreign-owned disregarded entities face unique restrictions when requesting extensions:
The IRS Form 5472 instructions explicitly state that foreign-owned disregarded entities are the ONLY entities prohibited from e-filing - even tax software cannot submit these forms electronically.
Follow these steps to properly request your Form 5472 extension:
Download Form 7004 from the IRS website
Complete required fields:
Add special notation: Write "Foreign-owned U.S. DE" across the top of the form
| Method | Timeline | Best For | Notes |
|---|---|---|---|
| Fax | File by April 15 | Fastest confirmation | Use 855-887-7737, keep fax confirmation |
| Postmark by April 15 | Those without fax access | Use certified mail for proof of timely filing |
Once Form 7004 is submitted by April 15, you have until October 15 to file Form 5472 and pro forma Form 1120. Use this time to:
The IRS requires you to maintain all records for a minimum of 7 years. Failure to maintain adequate records also triggers the $25,000 penalty.
We've seen these mistakes cost business owners thousands. Here's how to avoid them:
The Problem: Many foreign LLC owners believe Form 7004 extends both filing AND payment deadlines.
The Reality: The extension only applies to filing forms. Any taxes owed must be paid by the original April 15 deadline, or interest and penalties accrue.
The Solution: For foreign-owned disregarded entities with no US-source income, this typically doesn't affect you. However, if you elect C-Corp taxation or have US business income, estimate and pay taxes by April 15 even if you file Form 7004.
The Problem: Many tax software platforms and online services claim to support Form 5472, leading business owners to attempt electronic filing.
The Reality: According to IRS regulations, foreign-owned disregarded entities are explicitly prohibited from e-filing Form 5472 or Form 7004.
The Solution: Always mail or fax these forms to the dedicated IRS address. Our accounting service handles this specialized filing requirement for all clients.
The Problem: Form 1120 has multiple filing addresses depending on circumstances. Using the standard Form 1120 address will delay processing.
The Reality: Foreign-owned disregarded entities must use a specific address: Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201.
The Solution: Always verify the current address on the IRS Form 5472 instructions page, as addresses occasionally change.
The Problem: Many owners assume that if their LLC had no revenue or activity, they don't need to file Form 5472.
The Reality: Formation costs, capital contributions, and even maintaining the LLC constitute reportable transactions requiring Form 5472 filing.
The Solution: File Form 5472 annually, regardless of revenue. Our federal tax service includes Form 5472 filing even for dormant LLCs.
The Problem: Mailing from outside the US to meet the April 15 deadline without accounting for international delivery times.
The Reality: The IRS uses the postmark date to determine timeliness. However, tracking international mail can be challenging.
The Solution: Either fax your forms (fastest) or mail them 2-3 weeks before the deadline using a trackable international shipping service. Better yet, let us handle the filing - we maintain US-based operations for timely submissions.
The Problem: Not checking whether the deadline falls on a weekend or federal holiday.
The Reality: When April 15 falls on a weekend or holiday, the deadline automatically shifts to the next business day.
The Solution: Always verify the exact deadline for your tax year. The IRS publishes annual tax filing deadline calendars accounting for these adjustments.
If you've already missed the Form 5472 filing deadline, you may qualify for penalty relief through several IRS programs:
According to tax compliance experts, these relief options have varying success rates. Working with a tax professional significantly improves your chances of penalty abatement.
Use this checklist to ensure you meet all Form 5472 deadline requirements:
Form 5472 compliance involves multiple complex requirements, specialized filing procedures, and severe penalties for errors. Here's why many foreign business owners work with professionals:
We ensure accuracy and timeliness - Our team handles the specialized filing requirements for foreign-owned disregarded entities, including the mail/fax-only submission process and correct IRS address usage.
We manage extension filing - We automatically file Form 7004 before the April 15 deadline, giving you the full 6-month extension without stress.
We maintain your records - We organize and store all required documentation for the IRS-mandated 7-year retention period.
We provide ongoing compliance - Federal tax filing is just one requirement. We also handle your company formation, registered agent service, and ongoing accounting needs.
Our Federal Tax Filing service starts at $299 and includes complete Form 5472 and pro forma Form 1120 preparation, filing, and compliance monitoring. We simplify US tax compliance so you can focus on growing your business.
Form 5472 is due April 15, 2025 for calendar-year filers (covering the 2024 tax year). With a Form 7004 extension, the deadline extends to October 15, 2025.
No. Foreign-owned disregarded entities cannot e-file Form 5472 or pro forma Form 1120. You must mail or fax these forms to the IRS at the dedicated address for foreign-owned entities.
The IRS imposes an immediate $25,000 penalty for late filing, even if you're only one day late. Additional $25,000 penalties accrue every 30 days after the IRS sends you a notice (minimum 90-day notice period).
Yes. Form 5472 is required for all foreign-owned single-member LLCs with reportable transactions, regardless of revenue. Formation costs, capital contributions, and even maintaining the LLC constitute reportable transactions.
File Form 7004 by your original deadline (April 15 for calendar-year filers) via mail or fax to the dedicated IRS address. The 6-month extension is automatic - no IRS approval needed.
No. Form 7004 only extends the filing deadline. Any taxes owed must be paid by the original deadline (April 15), or interest and penalties accrue. For foreign-owned disregarded entities with no US income, there's typically no tax due.
Tax software can help you prepare Form 5472, but you cannot submit it electronically. You must print the completed form and mail or fax it to the IRS. The e-file prohibition applies only to foreign-owned disregarded entities.
Mail to: Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201. You can also fax to 855-887-7737. Always verify the current address on the IRS Form 5472 instructions page.
Ready to ensure compliant Form 5472 filing? Our Federal Tax Filing service handles all Form 5472 requirements, including deadline management, extension filing, and IRS submissions. We take care of the complex filing procedures so you stay compliant and penalty-free. Get started today.

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