Foreign-Owned LLC Compliance Calendar
Personalized for your entity. Enter your details and get an instant timeline of every federal and state filing deadline — with automatic email reminders 30 days and 7 days in advance.
- Federal + 50 States
- Form 5472 Coverage
- Weekend/Holiday Adjustments
- 100% Free
Register Your Entity
Two minutes. Instant calendar. Zero spam.
Entity Compliance Registration
Register your US entity to receive automated compliance deadline reminders.
Your Compliance Calendar
You'll receive email reminders 30 days and 7 days before each deadline. Check your inbox for a confirmation email — please add info@optimizetax.io to your safe-senders list.
🔒 Used only for deadline calculation & reminders. No spam, ever.
“
Saved me a $25,000 Form 5472 penalty. The 30-day reminder caught my deadline weeks before I would have noticed.
Marcus L. — Foreign-owned Delaware LLC

Krishnaveni Raghavan, CPA, EA
Specialist in foreign-owned U.S. entity compliance — Form 5472, pro forma 1120, ITIN, treaty analysis.
What We Track
📄 Federal Returns
Form 1065, 1120, pro forma 1120
🌐 Form 5472
Auto-calculated 6-month windows
Why Foreign-Owned LLCs Are Different
- Form 5472 is mandatory even with $0 revenue or activity.
- SMLLCs must paper-file a pro forma 1120 + 5472 by mail or fax — no e-file.
- No SSN, no problem — ITIN or EIN works for filings.
- Treaty positions require Form 8833 disclosure.
What You Get by Email
- Full deadline schedule through next year, sorted by due date.
- State-specific notes — franchise tax, biennial reports, fees.
- Penalty amounts for each missed filing so you know the cost.
- Form numbers (1065, 1120, 5472, 7004) for your CPA.
⚠️ Don't Risk the Penalty
$25,000
Auto-assessed by the IRS. Our calendar ensures you never miss a deadline.
Need a Filing, Not Just a Calendar?
We prepare and file Form 5472, pro forma 1120, partnership 1065, and state annual reports for foreign-owned U.S. entities.
The Real Cost of a Missed Deadline
$25,000
Form 5472 (per form)
$245
Form 1065 (per partner)
Up to 12 months — penalties compound monthly.
$485+
Form 1120 minimum
$200–$800
State annual reports
⚠️ Beyond the dollar amount:
A Typical Year for a Foreign-Owned LLC
Gather K-1s, 1099s, bank statements. Most state annual reports for anniversary-month states (e.g. WY) are due now.
Form 1120 + pro forma 1120 (SMLLCs) + Form 5472 all due. SMLLCs must mail/fax — no e-file.
April 15 — Corporation + 5472
Extension deadlines. Partnerships: Sept 15. Corps + SMLLCs: Oct 15. This is the final wall — no further extensions.
How It Works
1
Enter Your Entity Details
2
Get Your Custom Calendar
Instant personalized timeline with federal, state, and Form 5472 deadlines. Download .ics or print to PDF.
3
Receive Email Reminders
Frequently Asked Questions
Is the compliance calendar really free?
Yes — 100% free with no credit card required. We built this tool because missed deadlines are the #1 cause of unnecessary IRS penalties for foreign-owned entities.
What deadlines does the calendar track?
When will I receive email reminders?
You’ll receive two reminders per deadline: one 30 days before and one 7 days before. Each email includes the form name, filing method, and a link to our filing services if you need help. Add info@optimizetax.io to your contacts to ensure delivery.
Does the calendar adjust for weekends and holidays?
I have a single-member LLC. Why does it show "Mail/Fax Only"?
Can I register multiple entities?
What if I've already missed a deadline?
Past deadlines are hidden by default — click “Show past deadlines” to view them for reference. If you’ve missed a filing, contact our CPA team — we handle late filings and IRS penalty relief requests regularly.
How is my data used? Do you sell my information?
Your data is used only for deadline calculation and reminder emails. We never sell, share, or rent your information to third parties. You can request deletion at any time by emailing info@optimizetax.io.
