Form 5472 October 15 Deadline: What Extension Filers Need to Know
"Filed Form 7004 in April? October 15 is your real deadline — no second extension exists. Here's exactly what to file and what happens if you miss it too."
If you filed Form 7004 back in April for your 2025 tax year return, October 15 is your real deadline. Not a soft suggestion, not a "try to get to it" date — your actual final chance to file Form 5472 for 2025 without the $25,000 penalty landing on your desk.
I see the same pattern every year. People file the extension in April, feel relieved, and then completely forget about it until a notice shows up in November. Don't be that person.
Why October 15 Matters More Than April 15
There's no second extension. April 15 is your original deadline. File Form 7004 and you buy six months, pushing you to October 15. Miss that second date and there's nothing left to push — you're simply late, and the $25,000 penalty applies the same way it would if you'd never filed an extension at all.
The extension bought you time. It didn't buy you forgiveness.
What You Actually Need to File
Same two documents as always:
Form 5472 — reporting your reportable transactions with related parties. Capital contributions, distributions, fees paid on the LLC's behalf — all of it goes in Part V for disregarded entities. If any single category totals $50,000 or less, simplified reporting applies.
Pro forma Form 1120 — mostly blank, with "Foreign-owned U.S. DE" written across the top, your LLC's basic information filled in, and a wet-ink signature. No e-signatures accepted.
Neither form can be e-filed. Both go by mail or fax to the Ogden, Utah address — same place your extension went.
If You Haven't Gathered Your 2025 Transaction Records Yet
Six months is a long time to lose track of what moved between you and your LLC during 2025. If you don't already have things organized, now's the moment. Pull your bank statements for 2025 and list out:
- Capital you put into the LLC
- Any distributions you took out
- Registered agent fees, state filing fees, or other costs you covered personally
- Any loans between you and the LLC
A simple Excel spreadsheet with date, amount, and direction gets this done in an afternoon. Doesn't need to be complicated — it needs to be complete.
What If You're Not Going to Make October 15 Either?
This happens more than people admit. Life gets in the way, records are a mess, or you genuinely forgot the extension existed until now. Here's the honest answer: there's no third extension, but filing late with a solid explanation beats not filing at all, every time.
If October 15 passes and you still haven't filed, get it done as soon as you realize — don't wait for a notice. The IRS gives real weight to voluntary compliance, meaning you came forward on your own instead of after they caught up with you. Prepare the forms, attach a reasonable cause statement explaining what happened, and submit it. Waiting longer only weakens that argument.
Common Mistakes Extension Filers Make
Assuming the extension covers the whole return. Form 7004 extends your filing deadline. It does not extend any tax payment deadline if your entity happens to owe tax for other reasons. For most foreign-owned disregarded entities filing Form 5472, there's no income tax due with the form itself, but don't assume that's universal to your situation.
Forgetting which year's transactions to report. If you're filing for the 2025 tax year that ended back in December 2025, make sure you're reporting transactions from that calendar year, not activity that happened after your extension was granted in 2026.
Sending the extension confirmation instead of the actual return. Some people mistakenly think Form 7004 itself needs to be resubmitted in October. It doesn't — Form 7004 already did its job in April. October 15 is when you submit the actual Form 5472 and pro forma Form 1120.
Missing the wet-ink signature. After six months, it's easy to forget the IRS won't accept a typed or digital signature on the pro forma Form 1120. Sign it by hand before you fax or mail it.
Set a Reminder Now
October 15 lands on a specific day and the IRS doesn't move it for weekends the way some other deadlines shift. Put it in your calendar today, not the week before. If you're gathering documents from a formation platform like Stripe Atlas or Doola, give yourself buffer time in case anything's missing.
File Before the Deadline, Not After
MyFreeTaxAmerica.com walks you through the entire Form 5472 filing — generates your pro forma Form 1120, checks for errors before you submit, completely free. If you want a professional set of eyes on it before it goes out, our Premium Package adds a full review plus IRS e-fax submission. Check our FAQ if anything about your situation is unclear.
Six months felt like a lot of runway back in April. It isn't anymore. Get this filed before October 15 and you're done for the year.
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General information, not tax or legal advice. Consult a qualified tax professional about your specific situation.