DIIRSP: How to File a Late Form 5472 with a Reasonable-Cause Statement

DIIRSP is the IRS's published route for filing late international information returns such as Form 5472. You file the late returns with a reasonable-cause statement; the IRS may still assess the $25,000 penalty during processing, and you then respond with the reasonable-cause facts.

It is not amnesty and it is not a guaranteed waiver. The IRS's DIIRSP page tells eligible taxpayers to file the delinquent returns through normal filing procedures; only for Forms 3520 and 3520-A is the reasonable-cause statement considered before a penalty is assessed.

The IRS does not publish DIIRSP outcome data, and its DIIRSP page says penalties may be assessed during processing without considering the attached reasonable-cause statement. A specific, documented statement is the strongest basis for responding if a penalty notice (such as CP 215) follows.

DIIRSP is available to any taxpayer who:

• Has not been contacted by the IRS about the specific delinquency yet (no CP 215 notice, no audit letter, no examination opened).
• Has not been notified that they are under criminal investigation.
• Is not currently under examination or audit for the tax year in question.

If the IRS has already sent you a CP 215 notice for the $25,000 penalty, you can still respond — but the path is penalty abatement appeal, not DIIRSP. DIIRSP is preventative; once a notice is issued you're in the formal appeal process.

The IRS's DIIRSP page lists only two conditions: not under civil examination or criminal investigation, and not already contacted by the IRS about the delinquent returns. Owners who find the missed filings themselves, before any IRS contact, generally meet both.

1. List every missed year. If you formed the LLC in 2022 and haven't filed, that's 2022, 2023, 2024.
2. Prepare the complete filing package for each missed year separately: cover letter, pro forma Form 1120 (with "Foreign-Owned U.S. DE" stamp), Form 5472, Part V supporting statement.
3. Write a single Reasonable Cause Statement that covers all missed years (or one per year if circumstances differ).
4. Attach the statement to the front of the package.
5. File all years together — fax the entire set to +1-855-887-7737 (IRS Ogden PIN Unit), or mail certified to Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201.
6. Keep the fax transmission receipt. It records the provider’s transmission event and should be retained with the exact package; it does not establish acceptance of a reasonable cause request.
7. Preserve the record and monitor correspondence. Silence does not establish processing, acceptance or penalty relief.

The IRS evaluates whether you acted with "ordinary business care and prudence." Strong statements include:

• A clear timeline of when and how you became aware of the filing requirement.
• Specific personal circumstances — first-time foreign LLC owner, language barrier, the LLC was formed as part of a Stripe Atlas / startup accelerator package and the filing wasn't part of the onboarding, etc.
• If an adviser was involved, give the facts of that advice: what you asked, what information you gave them and what they told you. The IRS manual says relying on someone else to file is generally not reasonable cause, because the filing duty cannot be delegated (IRM 20.1.1.3.2.2.5), and reliance on a tax advisor's advice helps only in limited cases involving a technical or complicated substantive issue (IRM 20.1.1.3.3.4.3).
• Evidence you took corrective action immediately upon learning (and how soon — "I learned in March 2026 and am filing in April 2026" is much stronger than "I learned in 2024 and am filing now").
• Explicit confirmation that no US tax is owed and that this is purely an information-return delinquency.
• A statement that you will comply going forward, ideally citing the system you've put in place (e.g. annual filing reminder, signed up for an annual filing service).
• Concise — typically 1-2 pages.

Generic statements like "I didn't know" are weak. Specific, factual statements tied to your real circumstances work.

For a sample structure and what to include, see our Form 5472 reasonable cause statement guide.

Things that hurt your DIIRSP case:

• Vague excuses ("I was busy", "I forgot", "my CPA didn't tell me" without further detail).
• Statements that contradict facts visible on the form (e.g. claiming you didn't know about US filing obligations while reporting years of US-source revenue).
• Boilerplate copied from forums or generic templates with no facts unique to your situation.
• Aggressive language toward the IRS.
• Implying tax avoidance was a motive.
• Missing or contradictory dates in the timeline.
• Claims of reliance on a professional without naming when you consulted them or what they advised.
• Filing under DIIRSP when you have unpaid US tax (use Streamlined Filing Compliance Procedures or a different path instead).

If you've missed 2 or 3+ years, file them all at once, with a Reasonable Cause Statement attached to each late year's return. The IRS manual recommends that reasonable cause not be considered for any year until all delinquent returns have been filed, so one catch-up beats filings spaced out over time.

Our flat-rate DIIRSP catch-up packages:

• 2-year DIIRSP catch-up: $248 Standard / $298 Express (fax included)
• 3-year DIIRSP catch-up: $347 Standard / $397 Express (fax included)

The per-year price is cheaper than filing separately, and each year's reasonable cause statement tells the same consistent story. Every package is reviewed by an accountant on our team before we fax it to the IRS.

For 4+ missed years, you'd run two packages back-to-back or message us to coordinate — the IRS still accepts the comprehensive catch-up approach but the multi-year package limit is 3 years per wizard session.

Three commonly confused IRS catch-up paths:

• DIIRSP — for delinquent international information returns such as Form 5472, when you are not under IRS examination or investigation and have not been contacted about the missing returns. A reasonable cause statement may be attached to each late return.

• Streamlined Filing Compliance Procedures — for US persons (citizens, green-card holders) with delinquent FBAR or income-tax filings. Requires a Streamlined Certification and is more complex. Almost never the right path for a foreign-owned US LLC with $0 US tax.

• Quiet disclosure — informal term for filing late without explanation. Strongly discouraged. The IRS often assesses penalties anyway and there's no documented good-faith effort to abate.

For a foreign-owned single-member LLC that the IRS has not yet contacted, DIIRSP is the usual route.

After a DIIRSP filing, the current Form 5472 instructions do not describe a routine acceptance acknowledgment for this faxed package. Keep the exact submitted package, destination, timestamp, page count, provider receipt and IRS correspondence because silence does not establish processing, acceptance or penalty relief.

Do not send a duplicate solely because you have heard nothing. If a notice arrives, follow its instructions and response deadline; a transmission record does not guarantee a penalty will be removed. See receipt confirmation and next steps.

• Do not pay any penalty before you file under DIIRSP — there's nothing to pay until the IRS assesses something.

• Do not split missed years across multiple filings over months. File them all at once.

• Do not submit only Form 5472 without the pro forma 1120 and supporting statement — incomplete filings can be treated as not filed and the DIIRSP request rejected.

• Do not write a reasonable cause statement that admits negligence or implies tax avoidance. Frame the failure around specific facts: when and how you learned of the requirement, and what you did next.

• Do not assume amending an existing late return will reset the DIIRSP clock — amendments don't qualify as initial DIIRSP submissions if you previously filed late without one.

• Do not assume a signature platform establishes permission for this filing route. Form 5472 has no signature block; ink signing of the completed pro forma 1120 followed by scanning is a conservative workflow. Review signing authority separately.

Form5472 Prep automatically generates a Reasonable Cause Statement when you select 2 or 3 missed years in our wizard. The narrative is tailored to the most common DIIRSP scenario — first-time foreign LLC owner who was unaware of the Form 5472 obligation — and you can edit it to fit your specific circumstances.

We prepare the complete package for each year (cover letter, pro forma 1120, Form 5472, Part V supporting statement, reasonable cause statement). You sign once on screen — that signature embeds into every required signature box automatically. An accountant on our team reviews everything end-to-end. We fax to the IRS Ogden PIN Unit and email you the timestamped receipt for each year as transmission evidence.

• 2-year DIIRSP catch-up: $248 Standard / $298 Express (fax included)
• 3-year DIIRSP catch-up: $347 Standard / $397 Express (fax included)

100% money-back guarantee if we fail to submit.