How to Read an IRS Notice to Your Foreign-Owned LLC
TL;DR
Every IRS notice tells you five things in the top-right corner: the notice number (CP215, CP504…), the tax period, the form involved, the amount, and your response deadline. For a foreign-owned LLC the highest-stakes letter is CP215 — the civil-penalty notice that typically carries the $25,000 Form 5472 penalty and starts the 90-day escalation clock. Read the number first, then the deadline, then respond in writing.
Where do I find what the notice means?
Start at the top-right corner: the notice or letter number identifies the message before you read a word of the body. Then find the tax period it covers and the “respond by” date. The body explains what the IRS believes happened; the number tells you which playbook you are in.
| Notice | What it means | Typical trigger for a foreign-owned LLC |
|---|---|---|
| CP575 | EIN assigned — confirmation letter | Your EIN application was processed |
| 147C | EIN verification letter (you requested it) | Bank or platform asked you to prove your EIN |
| CP215 | Civil penalty assessed | Late or missing Form 5472 — usually $25,000 |
| CP161 | Balance due (non-penalty) | Unpaid tax shown on a filed return |
| CP504 | Final balance-due notice before enforced collection | Earlier notices went unanswered |
Numbers outside this table exist by the hundreds — the reading method is the same: number, period, amount, deadline.
Why is CP215 the one that matters most?
Because it is not just a bill — it is a timer. Once the IRS mails notice of a 5472 failure, a continuation penalty of $25,000 per 30-day period can begin after 90 days of continued non-filing. The correct response order is mechanical: file the missing return first, then dispute the penalty. Filing stops the escalation; the late-filing playbook covers the sequence, and reasonable-cause relief covers the written request that follows — relief is possible but never guaranteed.
What if the notice went to an old address?
It still counts. Notices are effective when sent to your address of record, and the escalation clock runs whether or not you saw the letter. This is the single strongest argument for keeping your IRS mailing address current with Form 8822-B — a $39–$70 filing that removes the worst failure mode a foreign owner has: penalties compounding in a mailbox you no longer control.
The response checklist
- Identify the notice number, tax period, and deadline — photograph or scan the full letter.
- Verify it is real: the IRS initiates contact by mail, not by email, SMS, or chat apps. Unexpected payment links are a scam signature.
- Stop the bleeding — if the notice concerns an unfiled return, file it now; disputes come second.
- Respond in writing by the stated date, keeping proof of mailing.
- Fix the root cause — update addresses, calendar the recurring deadline, and bring any other unfiled years current before they generate their own notices.
In our practice, the pattern behind almost every escalated penalty is the same: the notice was real, the deadline was real, and nobody was reading the mailbox. The cure is administrative, not heroic.
Official references: IRS — Understanding your IRS notice or letter (look up any notice number) · IRS — Penalty relief.
This article is general information, not tax or legal advice. Notice handling depends on your facts — get specific guidance before responding to an assessed penalty.
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