Form 5472 October 15 Deadline: What to Do in the Next 35 Days
By Arik Rozen, CPA, MBA — Form5472.online | September 10, 2026
October 15, 2026 — 35 days from today
If you filed a Form 7004 extension in April, your Form 5472 deadline is October 15. That is not a soft deadline. Missing it by one day triggers the same $25,000 automatic IRS penalty as missing the April deadline.
If you did not file a Form 7004 in April — you are already late. Scroll to the bottom of this page.
Who This Affects
This deadline applies to you if:
You own a foreign-owned U.S. single-member LLC or C-corporation
You filed Form 7004 before April 15, 2026 to request a 6-month extension
You have not yet filed your Form 5472 and pro forma Form 1120 for tax year 2025
The extension moved your deadline from April 15 to October 15. That is the final deadline — there is no second extension available for Form 5472.
October 15 is a hard stop. The IRS does not offer a second extension for Form 5472. If you miss October 15, the penalty is automatic — $25,000 per form, assessed before any human reviews your case.
What You Need to File by October 15
Form 5472 for a foreign-owned single-member LLC cannot be filed alone. Two documents must be submitted together:
Document 1
Form 5472
Reports all reportable transactions between you and your U.S. LLC during tax year 2025. This includes capital contributions, distributions, registered agent fees paid from your personal account, loans, service payments, and any other transfers between you and the company.
Document 2
Pro forma Form 1120
A simplified corporate return that serves as the carrier document for Form 5472. For a foreign-owned disregarded entity, this form is not a full tax return — it exists solely to attach Form 5472. It must be prepared correctly or the entire filing can be rejected.
Both documents must be submitted together as a single package by October 15, 2026.
How to Submit — IRS Fax or Mail Only
Form 5472 for a foreign-owned disregarded entity cannot be e-filed. The IRS requires one of two submission methods:
Method 1 — Recommended
Fax to IRS Ogden PIN Unit
Fax number: 855-887-7737. Scan at 300 DPI minimum. Keep the fax confirmation with timestamp as proof of submission. This is the faster method and provides immediate confirmation.
Method 2
Certified Mail to IRS Ogden
Address: Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201. Use certified mail with return receipt. Allow sufficient time for delivery before October 15 — do not mail in the final days before the deadline.
Important: A fax confirmation receipt proves you transmitted the document. It does not guarantee IRS receipt or acceptance. A professional filing service that sends with timestamped confirmation and monitors for IRS acknowledgment provides stronger post-filing protection.
What Happens If You Miss October 15
The IRS penalty for a late or incomplete Form 5472 is $25,000 per form, per year. It is automatic — generated by IRS systems when a late return is processed, before any human reviews the filing.
If the IRS sends a notice and the filing remains outstanding for more than 90 days, additional $25,000 penalties apply for each 30-day period that follows. There is no cap.
There is no grace period after October 15. If your filing arrives on October 16, the penalty applies.
What If You Never Filed Form 7004 in April?
If you did not file a Form 7004 extension request before April 15, 2026, you do not have the October 15 extended deadline. Your filing was due April 15 — and it is now late.
Being late does not mean the situation is unrecoverable. It does mean you need to act differently:
Do not file the late Form 5472 without a Reasonable Cause statement. When a late Form 5472 arrives at the IRS, automated systems immediately generate a $25,000 penalty notice. Filing without a professionally prepared Reasonable Cause statement means almost certain penalty assessment.
File all missing years together. If you missed more than one year, all delinquent returns must be prepared and submitted as a coordinated package using DIIRSP procedures.
Act now — the penalty clock is running. Every month you wait adds to the exposure. The sooner you file, the better your abatement case.
How Long Does It Take to Prepare and File?
With Form5472.online, standard turnaround is 10 business days from the date you complete your information questionnaire. Expedited 3-business-day service is available. Rush 24-hour service is available for filings with an urgent deadline.
With 35 days until October 15, standard turnaround is still available. In the final 10 days before the deadline, expedited service is recommended.
35 days until October 15.
CPA-prepared Form 5472 and pro forma 1120 — $448 all-in. Named CPA: Arik Rozen, Virginia License #025991.
Frequently Asked Questions
I filed Form 7004 in April. Do I need to do anything else before October 15?
Yes — you need to file your Form 5472 and pro forma Form 1120. The Form 7004 only extended your deadline. It did not file the return for you. The return must be completed and submitted by October 15.
My LLC had zero activity in 2025. Do I still need to file by October 15?
Possibly yes. If any money moved between you and the LLC during 2025 — including the registered agent fee, any bank transfer, or any formation cost paid from your personal funds — a reportable transaction occurred and the filing is required. A truly transaction-free year is rare. When in doubt, consult a CPA before assuming no filing is needed.
What is the penalty if I miss October 15?
$25,000 per Form 5472, per year. Automatic. No grace period. If the IRS sends a notice and the filing remains outstanding for more than 90 days, additional $25,000 penalties apply for each 30-day period. There is no cap on the total.
I never filed Form 7004. Is it too late to fix my 2025 filing?
No — but you need professional help. Late filings must be submitted with a Reasonable Cause statement using IRS DIIRSP procedures. Filing without that statement means an almost certain $25,000 penalty assessment. Form5472.online handles delinquent filings from $947/year including penalty removal assistance.
Can I e-file Form 5472 to meet the October 15 deadline?
No. Form 5472 for a foreign-owned disregarded entity cannot be e-filed. The IRS requires fax to 855-887-7737 or certified mail to the Ogden PIN Unit. Allow sufficient time for certified mail delivery if you choose that method.
How do I know if my prior filing was received by the IRS?
You can call the IRS at 1-800-829-4933 and request confirmation that your Form 5472 is on record. Have your EIN and tax year ready. If the IRS has no record of your prior filing — even if you have a fax receipt — you may need to refile immediately.
Related Resources
Arik Rozen, CPA, MBAHead of Tax Filing, Form5472.online / TAXUSA GROUP. Virginia License #025991. IRS Authorized e-File Provider. Specialist in federal filings for foreign-owned U.S. entities since 2004. This article is for general informational purposes and does not constitute tax or legal advice. Filing requirements vary by individual situation.
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